Automotive

Our line of front end drive system products – including belts, hoses and accessories, kits, components and tools – ensure complete coverage with reliable, OE-designed parts that greatly improve performance and reduce comebacks thanks to unique design features.

Dayco Poly-V Serpentine Belt

Dayco Poly-V Serpentine Belt

Designed to provide full coverage for today’s light duty vehicle market, especially vehicles with troublesome drives.

Constructed with aramid reinforced EPDM compounds, the Dayco poly-V serpentine belt delivers more than just OE quality. Developed through extensive laboratory and road testing, the rib profile in this EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and help eliminate noisy belt conditions. Dayco Poly-V serpentine belts offer extensive flexibility and longer service life, while handling higher workloads and temperature.

Dayco Poly-V Aramid Belt

Dayco Poly-V Aramid Belt

Specifically designed for applications that may have noise, vibration  or harshness issues, or in-drive systems in which tensioner take-up is minimal.

As the demand for higher output engines and tighter compartments increase, OEMs have elected to use serpentine belts with aramid tensile cord. The Dayco poly-V aramid serpentine belt has been engineered to maintain a quiet, vibration-free belt drive system. Unlike polyester-corded belts, the Dayco poly-V aramid serpentine belt will resist the expected elongations, especially during high accessory loading. This unique feature of length stability and minimal stretch can aid in difficult drives where span vibrations and tensioner movements are excessive. The Dayco poly-V aramid serpentine belt is built with Dayco’s specially designed EPDM rubber compounds to resist cracking and perform better under extreme temperature ranges.

Dayco ela® Poly-V Serpentine Belt

Dayco ela® Poly-V Serpentine Belt

Specially designed for two to four point drives on light duty vehicles that do not require automatic or manual tensioning.

Dayco ela® belts have self-tensioning capabilities required by specific OE drives designed for a “stretch” belt. This belt construction incorporates a wear-resistant EPDM rib material, along with a highly elastic EPDM cushion rubber that surrounds the polyamide tensile cord, thus providing the required adhesion and flexibility to maintain lasting performance. The backbone behind the Dayco ela belt is its polyamide tensile member, which allows for high elongation required for installation, yet provides the proper tension maintenance properties to transmit the accessory loads demanded for the drive.

Dayco Timing Belt

Dayco Timing Belt

Designed for specific OHC and DOHC applications ranging from normal service to high-performance, high temperature engines.

Manufactured with tough, wear-resistant fabric, high tensile strength cord and a molded tooth surface, Dayco’s timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat. The belt features a quieter, more economical molded cog design as well as a premium, high modulus glass fiber cord that delivers precise length stability to keep the engine running smoothly over the life of the belt.

Today, timing belts are subjected to new stresses and working conditions such as high direct injection pressure that in some applications exceeds 3,000 PSI, multi-valve motors with dual overhead camshafts with high loads, and turbocharged engines with high power and engine compartment temperatures above 250°F (120°C).

  • HSN: This belt offers superior resistance to high working temperatures, even up to 230°F (110°C) and is designed to withstand pulsating loads.
  • HK: Equipped with aramid-based fibers for superior durability and reduced noise, this belt style is manufactured for the latest small displacement high performance engine generations to withstand temperatures up to 250°F (120°C).
Dayco 11mm Blower Belt

Dayco 11mm Blower Belt

Designed for use on Top Fuel dragsters and Funny Cars with supercharged nitromethane engines.

The Dayco 11mm blower belt is engineered with a hybrid carbon cord encapsulated in custom rubber compounds and patented low friction PTFE tooth fabric. This standard 11mm pitch, 84mm wide and 145 teeth belt was developed using real-world track data, specifically for supercharged nitromethane engines and built to withstand some of the highest dynamic loads in racing.

Dayco Idler/Tensioner Pulley

Dayco Idler/Tensioner Pulley

Designed for the majority of automotive vehicle applications on the road today.

Dayco idler/tensioner pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and longer belt life. In addition to stamped, forged steel and powdered metal pulleys, we also design ultra-strong plastic pulleys with specially formulated glass-filled polymers that resist wear and tear. We include premium lubricated ball bearings and double high temperature seals to ensure peak bearing performance, the most critical element of a pulley's service life.

Dayco Water Pump

Dayco Water Pump

Application specific designs for more than 200 million vehicles in operation, from vintage classics to the most recent models.

Each Dayco water pump is made from 100% new cast aluminum or iron material as a single piece with no welds. Meeting TS16949 quality standards, our design includes case-hardened roller bearings that have a tough exterior but an interior that allows for flex without breaking the bearing. Each pump features an improved impeller design for enhanced performance, cast aluminum or iron material for better durability and increased longevity, as well as superior gaskets and unitized seals to prevent leaks well beyond the life of our industry-leading 125,000 mile warranty.

Dayco Automotive Belt Tensioner

Dayco Automotive Belt Tensioner

Designed for all vehicle applications with serpentine belt drives.

To maintain constant tension on serpentine belt drives, the Dayco automotive belt tensioner features our original, patented flat spring design to provide less operating range variation. It reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed and lessens the risk of belt noise and slippage – or poor performance caused by low tension. A PTFE string wound within the spring resists abrasion dampens noise and the flat spring is coated to resist rust.

Dayco’s tensioner is also designed with a heavy duty cast aluminum spring case and arm. The strong metal helps resist cracking and fatigue and offers additional strength, lessening the risk of distortion. Additional premium features include a steel pivot tube on specific designs for enhanced stability, thermoplastic rubber spring slot plugs and rubber O-ring seals to help keep contaminants out and zinc coated mounting bolts that resist rust. Built to outperform and outlast competitive OE parts, our tensioners endure the toughest conditions while promoting quieter performance and longer life.

Dayco OAD

Dayco OAD

For automotive vehicle applications that include OAD as Original Equipment.

The Dayco OAD has a one-way clutching capability which allows it to isolate and dampen the drive from the alternator upon deceleration. These specially designed pulleys reduce belt slippage during rapid acceleration or deceleration and reduce noise and stress on the drive belt and other accessories. Also designed to increase alternator and belt drive life as well as improve the variation of drive belt tension, Dayco offers a full line of high-quality OADs where vehicle applications call for it. Proper tools must be used to remove and install OADs.

Dayco OAP

Dayco OAP

For automotive vehicle applications that include an OAP as Original Equipment.

Dayco OAPs are engineered with one-way clutches that allow the rotational inertia of the alternator to “overrun” during any belt deceleration event. Dayco OAPs, which are designed for long service life, decrease drive belt vibration and reduce belt slippage during rapid acceleration or deceleration, resulting in less stress on the drive belt and other accessories as well as increased alternator and drive belt life. Dayco OAPs are application-specific replacement parts. If a vehicle requires an OAP, the same type of pulley must be installed using the proper tools.

Dayco Hydraulic Timing Belt Actuators

Dayco Hydraulic Timing Belt Actuators

Engineered for all automotive applications that require a timing belt.

Designed to absorb changes in loss of timing belt tension caused by variations in engine temperatures, speed or the general wear and aging of the belt. Maintaining belt tension at a constant level reduces noise, prevents belt flapping, and ensures proper timing effectiveness throughout the entire service life of the belt. This Dayco hydraulic timing belt actuator is manufactured to meet the critical OE quality, form, fit and function requirements necessary for superior performance.

PowerBond® by Dayco Harmonic Balancer

PowerBond® by Dayco Harmonic Balancer

Designed as premium OEM replacement balancers for serpentine and V-belt drives on the most popular passenger car, light commercial and four-wheel drive applications.

Manufactured using a premium ductile iron casting and injection bonded dampening rubber, PowerBond® harmonic balancers offer engine builders and technicians the highest quality replacement to standard OEM balancers, which are typically made with press inserted dampening rubber. Our balancers utilize both inserted and pressure-bonded rubber to provide superior bonding strength between the inner and outer balancer rings, helping minimize spin and dislocation.

PowerBond® by Dayco Street Performance Harmonic Balancer

PowerBond® by Dayco Street Performance Harmonic Balancer

Designed as a high-performance alternative for vehicle applications with modified engines.

Designed with a unique combination of materials and castings, the PowerBond® street performance balancers provide the maximum strength and durability of bonded dampening rubber. Bringing bonded balancer technology within the budget of every performance street engine builder, each balancer is dynamically balanced for a smooth operation and contains easy to read laser etched timing marks.

PowerBond® by Dayco Supercharger Harmonic Balancer

PowerBond® by Dayco Supercharger Harmonic Balancer

Designed for high-performance supercharged engines.

PowerBond® by Dayco supercharger harmonic balancers feature an SFI 18.1 approved design that includes twin key ways for secure crank mounting. Also designed with a six pulley bolt hole pattern and a high-pressure bonded dampening runner, it provides for maximum torque resistance. Available with overdrive and underdrive pulleys for maximum boost in supercharged applications.

PowerBond® by Dayco Race Series Harmonic Balancer

PowerBond® by Dayco Race Series Harmonic Balancer

Designed for high horsepower street and racing applications.

The race series harmonic balancers brings the advantages of bonded balancers to high revving and high horsepower street and race applications where an SFI approved balancer is required. These racing balancers have been tested beyond 21,000 RPM without failure and come in both overdrive and underdrive options. Every PowerBond® race series balancer features a precision CNC machined AISI 1045 forged steel hub bonded to an equally strong steel inertia ring and laser etched timing marks for easy timing changes. Through advanced design, our race series balancers are engineered to be very light for an all steel product. In most cases they are only marginally heavier than the original cast iron balancer, and generally lighter than other all steel balancers on the market. The steel inertia ring on the race series models is protected against forward and backward movement.

Dayco Timing Component Kit

Dayco Timing Component Kit

Engineered for the majority of domestic and import vehicle applications on the road today with a timing belt.

Manufactured to meet critical OE quality fit, form and function requirements demanded by today’s vehicle manufacturers, Dayco’s timing component kit ensures long lasting peak performance. This kit is designed to replace worn or damaged original equipment timing belts, tensioners and idler pulleys. And it includes pre-packaged tensioners, idler pulleys and instructions – each matched to a specific make, model and vehicle year.

Dayco Timing Belt Water Pump Kit

Dayco Timing Belt Water Pump Kit

Engineered for both domestic and import vehicle applications on the road today with a timing belt.

Demanded by today’s OEMs and manufactured to meet critical fit, form, and function requirements, Dayco’s timing belt kits with water pump ensure part accuracy, time savings, and long-lasting performance. This kit is designed for the replacement of worn or damaged original equipment timing belts, tensioners, idler pulleys, and water pumps – each matched to a specific vehicle make and model. In addition, the water pumps included in the kit feature superior gaskets that retain bolt torque, a roller bearing hub and composite seals to prevent leaks. Dayco water pump timing kits have a 125,000 mile warranty – one of the best in the industry.

Dayco Poly-V Serpentine Belt Kit

Dayco Poly-V Serpentine Belt Kit

For light vehicle applications that need a highly engineered drive belt and multiple parts for a thorough and proper repair.

Dayco poly-V serpentine belt kits have been designed for the most popular light duty applications, ensuring that whoever is completing the repair has all the parts needed. Dayco’s kit offers OE or equivalent components including our premium tensioner with flat spring technology, a durable pulley with permanently lubricated bearings and the Dayco poly-V serpentine belt that provides extensive flexibility and longer service life, while handling higher workloads and temperatures.

Dayco Demanding Drive Kit

Dayco Demanding Drive Kit

Custom engineered to cover 35 million problem drive vehicles in operation.

Engineered specifically for the most problematic drive systems as an improvement over the OE design, Dayco Demanding Drive kits come in 14 applications that contain all necessary parts to ensure a safe, reliable and noise-free belt drive system, including up to two poly-V serpentine belts, a premium tensioner with flat spring technology and an idler pulley.

Dayco Flare-Vent Hose

Dayco Flare-Vent Hose

Designed to connect the vehicle’s exhaust pipe to a central exhaust system or a garage door vent.

The Dayco flare-vent hose features an accordion-type design for added flexibility, and a flared end for connecting one length to another. No separate connectors are required.

Dayco Super-Vent® Hose

Dayco Super-Vent® Hose

Designed for overhead exhaust systems where a tight bend radius is required.

The Dayco Super-Vent® hose features an accordion type construction which enables it to make turns with a small bend radius. It is available in both 4" or 5" I.D.s.

Dayco Tailpipe Adapters

Dayco Tailpipe Adapters

Engineered to serve as an interface between an auto or truck tailpipe or diesel truck stack and the garage exhaust hose itself.

Dayco tailpipe adapters are constructed to withstand high tailpipe temperatures of modern vehicles. A variety of shapes and sizes are available to enable an exact match for virtually every application need. The adapters feature a universal design to mate with the appropriate connectors.

  • Universal Straight Adapter
    Use with tailpipes 1 ½" O.D. to 2" O.D.
  • Universal Bell-Shaped Adapter
    Use with 2 ½" and 3 ½" hose.
  • Universal Oval Adapter
    For use on twin tailpipes and oval tailpipes.
    For use with 3" or 4" flare vent hose.
    Screws over 3" or into 4" hose. 2 ½ " x 6" oval.
  • Universal Straight Truck Adapter
    Use with tailpipe adapter for trucks.
    Threads over 3 ½" or into 4" hose.
  • Universal Truck Stack Adapter
    Available in both 5 ½" and 6" I.D. openings.
Dayco Branded Radiator Hose

Dayco Branded Radiator Hose

Designed as an aftermarket replacement for OEM manufactured branched cooling system hoses.

The Dayco branched radiator hose features an all EPDM construction that resists the effects of oil, mud, salt and ozone, and a knitted rayon reinforced inner tube that stands up to temperature ranges of -40˚F (-40˚C) to +257˚F (+125˚C). With leak-proof junctions that ensure long service life and unrestricted flow, this branched hose meets SAE J20R4, Class D-1, Type EC electro-chemical requirements as specified in SAE J1684.

Dayco Brass Heater Hose Connectors

Dayco Brass Heater Hose Connectors

Engineered for cooling system applications that call for brass connections.

Made of high-quality brass to withstand high or extreme maybe engine temperatures, high clamping pressure and a corrosive environment, Dayco’s brass heater hose connector is designed with raised ribs that help to lock the hose to the connector and improve the seal. Available to fit  ¼", ⅜", ½" and ⅝" hose I.D.s. This connector is compatible with all traditional engine coolants.

Dayco Flex Radiator Hose

Dayco Flex Radiator Hose

Designed to replace straight or molded radiator hoses on a wide range of engine applications.

Precision molded in standard lengths, the Dayco flex radiator hose features a knitted reinforcement and synthetic EPDM construction that meets SAE J20R4, Class D-2 requirements.  This hose is designed to prevent splitting, ballooning and elongation as well as resists ozone and other detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C). With corrugations that provide excellent hose flexibility without flattening or collapsing, the Dayco flex radiator hose also features a helical steel coil spring for increased flexibility.
*NOT suitable for fuel or oil transfer.

Dayco Heater Hose Packaged 6-Foot

Dayco Heater Hose Packaged 6-Foot

Designed to hang on standard pegboard hooks for retail displays and self-service stations.

This pack contains each of the three most popular Dayco heater hose sizes – ½", ⅝", ¾" – packaged in 6' lengths in a poly bag that measures 12" wide x 17" high. Ships 10 bags per standard case.

*NOT suitable for fuel or oil transfer.

Dayco Insulone® Heater Hose

Dayco Insulone® Heater Hose

Designed for use in cold climate applications where efficient heat transfer is important for comfortable and cost-effective vehicle operation.

The premium Dayco Insulone® heater hose delivers heated coolant to the heater core with minimal heat loss. The synthetic EPDM rubber compounds and spiral reinforcement give this hose excellent burst strength, resistance to heat and compatibility with all common coolants and coolant additives. A special compound used in the insulating layer provides an added measure of protection against heat loss. Built with a black cover, this hose meets SAE 20R3, Class D-2 with a temperature range of -40°F (-40°C) to +257°F (+125°C).

*NOT suitable for fuel or oil transfer

Dayco Molded Radiator and By-Pass Hose

Dayco Molded Radiator and By-Pass Hose

Designed to replace OEM hoses on today’s light duty vehicles for superior performance.

The Dayco molded radiator and by-pass hose features knitted reinforcement, a protective sleeve and a synthetic EPDM rubber construction for high strength performance, protection against abrasion and resistance to oil, mud, salt, road debris, ozone and coolants. It can also withstand temperature variations of -40°F (-40°C) to +257°F (+125°C). The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose. In addition to meeting SAE J20R4, Class D-1 requirements, this hose also meets Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges.

Dayco Molded Heater Hose

Dayco Molded Heater Hose

Made with the same bends and routing as the OEM assembly, this hose is designed to fit the vehicle precisely as an OEM replacement.

The Dayco molded heater hose is constructed with knitted reinforcement and synthetic EPDM compounds for high strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C). In addition to meeting SAE J20R4, Class D-1 requirements, this hose is designed to meet Type EC electro-chemical requirements as specified in SAE J1684.  With a “quick connect” end (where applicable) assembled onto the hose for fast, convenient installation, you can avoid the hassle of buying a separate connector and clamp.

Dayco Plastic Heater Hose Connectors

Dayco Plastic Heater Hose Connectors

Designed for making various replacement heater hose configurations, accommodating ¼", ⅜", ½", ⅝" and ¾" hose I.D.s. and compatible with all traditional coolants and fuels.

These glass-filled nylon connectors feature a unique barbed end profile to ensure a leak-proof seal and anti-rotation ribs molded directly into the connector to prevent hose rotation and twisting. A circumferential flange provides a hose stop that ensures the hose is inserted to the proper depth. Dayco plastic heater hose connectors are available in straight, “Y”, elbow, tee and reducing configurations.

Dayco Small I.D. Molded Heater Hose

Dayco Small I.D. Molded Heater Hose

Designed to replace OEM coolant hose and provide long, reliable service in applications where molded hoses in small diameters are required.

Made with the same bends and routing as the OEM assembly, this molded hose is designed to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation. In addition to meeting SAE J20R3, Class D-1 requirements, the Dayco small I.D. molded heater hose is designed to meet Type EC electro-chemical requirements as specified in SAE J1684.

Dayco Special Reducer

Dayco Special Reducer

Designed to reduce the inside diameters of larger hoses for emergency replacements in coolant or air applications.

These molded rubber Dayco special reducers slip into the end of straight radiator hoses to reduce the I.D. of existing straight, molded and flex hoses to help provide a tight, leak proof connection.

*NOT suitable for fuel or oil transfer

Dayco Standard Heater Hose

Dayco Standard Heater Hose

Made for general service on light trucks and passenger cars and compatible with all common coolants and coolant additives.

Designed to carry heated coolant from the engine block to the heater core and return it to the engine, the Dayco standard heater hose is constructed with EPDM compounds and a spiral reinforcement for high burst strength and excellent heat resistance. Similar to SAE 20R3, Class D-2, it has a temperature rating of -40°F (-40°C) to +257°F (+125°C).

*NOT suitable for fuel or oil transfer

Dayco Straight Radiator Hose

Dayco Straight Radiator Hose

Designed for a wide range of light vehicle applications where the radiator hose routing is relatively straight.

The Dayco straight radiator hose features knitted reinforcement and synthetic EPDM rubber construction. It meets SAE J20R4, Class D-2 requirements and provides high strength performance and resistance to detrimental environmental elements, such as ozone, coolants and temperature variations from -40°F (-40°C) to +257°F (+125°C).

*NOT suitable for fuel or oil transfer.

Dayco 90° Molded Coolant Hose

Dayco 90° Molded Coolant Hose

Designed for vehicles that require special heater hoses with a molded 90° elbow to fit tight engine compartment routings. Multiple 90° hoses can be used with Dayco plastic connectors to fit complex routings.

The Dayco 90° molded coolant hose features knitted reinforcement and EPDM compounds for high strength construction and resistance to oil, mud, salt, road debris, ozone, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C).  The inner base tube is reinforced with knitted rayon for maximum strength and burst resistance for the life of the hose. In addition to meeting SAE J20R4, Class D-1 requirements, this hose meets Type EC electro-chemical requirements as specified in SAE J1684.

Dayco Fuel Line Hose

Dayco Fuel Line Hose

Designed for use on all types of carbureted gasoline engines – with leaded, unleaded and diesel fuel – that are exempt from CARB or EPA requirements.

The Dayco fuel line hose offers excellent resistance to oil, gasoline, grease and environmental elements. Constructed with a neoprene cover and nitrile tube that’s reinforced with a single ply of braided cord, the Dayco fuel line hose meets SAE J30R7 requirements and the fuel permeation requirements of SAE J1527 Type 2, Class B specifications. This hose specification should be used only on vehicles exempt from EPA and CARB emission regulations.

*NOT suitable for gasoline/oil mixed fuels, alcohol blended fuel, or bio-diesel fuel.

*NOT suitable for fuel injection systems.

Dayco Submersible Fuel Hose

Dayco Submersible Fuel Hose

Specifically engineered to handle fuel on the interior of the hose as well as constant exterior exposure to gasoline, alcohol blended gasoline or diesel fuel used in mobile and stationary applications.

Ready for fuel inside and out— the Dayco submersible fuel hose is built to perform when in constant contact with gasoline or other fuels. Composed from nitrile rubber for excellent stability and performance, it meets SAE J30R10 requirements and is available in a choice of sizes and lengths.

Dayco Dayperm® Hose

Dayco Dayperm® Hose

Ideally suited for automotive, lawn and garden, off-road and small industrial trucks, and truck fleet applications and compatible with leaded, unleaded, diesel and gasohol fuels for use at 50 psi or less.

Designed for stringent emission control requirements, the Dayco Dayperm® hose is a multi-layered rubber hose with low permeation. It’s recommended for a fuel liquid or vapor carrying component at low to medium pressure. With approval in the California market under Component Executive Order C-U-06-030, this hose meets SAE30R11 specifications as well as SAE 30R7 pressure requirements and should be used in place of conventional 30R7 for gasohol and oil/gas mixes.

*NOT suitable for bio-diesel or fuel injection systems.

Dayco Dayperm® II Hose

Dayco Dayperm® II Hose

Recommended for carburation applications on small engines and older carbureted vehicles using liquid fuels such as leaded, unleaded, gasohol, bio-diesel fuel and ethanol blended gasoline.

The Dayco Dayperm® II hose is a multi-layered rubber hose with low permeation that meets all SAE J30R14T2 requirements and is CARB and EPA compliant. The fuel injection hose is constructed with a tough fluoro-elastomer, low permeation, gasohol and diesel fuel inner tube that provides exceptional resistance to alcohol blended fuels that weaken normal fuel injection hose. A special braided reinforcement delivers a recommended working pressure of 100 psi, with a burst strength of 900 psi. The abrasion-resistant outer cover resists temperature extremes of -30˚F (-34.5˚C) to +300˚F (+149˚C) as well as oil, grease, ozone and coolants. The Dayco Dayperm II hose also meets SAE J30R14T2 and CARB 2020 requirements (EO#Q-19-156).

*Suitable for diesel and bio-diesel fuel.

Dayco Fuel Filler Hose

Dayco Fuel Filler Hose

Designed to connect the filler neck to the fuel tank on cars, light trucks and boats as well as auxiliary fuel tanks on RVs that use leaded, unleaded, diesel, gasohol and oxygenated fuels.

The Dayco fuel filler hose is designed to connect the filler neck to the fuel tank on cars, light trucks and boats as well as auxiliary fuel tanks on RVs. Supplied in 3' lengths, this hose has a rugged, double reinforced construction that helps prevent hose collapse and meets SAE J30R7 and SAE J1527, Style R2 requirements.

Dayco Multi‐Purpose Hose

Dayco Multi‐Purpose Hose

Designed to handle air, water service and agricultural chemicals up to 200 psi.

Dayco’s multi‐purpose hose and its cover are constructed of EPDM to resist heat, sunlight, ozone and weathering. The two‐ply reinforcement provides strength and resistance to kinking. This hose exceeds RMA Class C medium oil resistance requirements and is able to withstand temperature variations of ‐40 F (‐40 C) to +212 F (+100 C).

*NOT suitable for the transfer of petroleum products, steam, paint spray, unleaded gasoline, anhydrous ammonia or LP gas service.

Dayco Premium Multi‐Purpose Hose

Dayco Premium Multi‐Purpose Hose

Designed to transmit air, water, oil and chemicals in service up to 300 psi in a variety of applications requiring the transmission of air, water, oil or chemicals.

The Dayco premium multi‐purpose hose consists of a nitrile tube, neoprene cover and two‐ply textile reinforcement. Providing long lasting service, the Dayco premium multi‐purpose hose features a tube compounded to deliver maximum oil resistance. In addition, the hose has been designed to withstand temperature variations of ‐20˚F (‐29˚C) to +212˚F (+100˚C) and is electrically nonconductive with a minimum resistance of one megohm per inch at 1,000 volts DC.

*NOT suitable for steam, paint spray, gasoline, anhydrous ammonia or LP gas service.
*NOT suitable for hot, dry air applications.

Dayco Barrier Refrigerant Hose Style DBH

Dayco Barrier Refrigerant Hose Style DBH

Designed for use with R12 and R134A refrigerant systems only.

This hose features a nitrile, nylon barrier and neoprene tube construction. It has textile reinforcement and a black EPDM cover that is resistant to abrasion, ozone and heat. With a temperature range from ‐22 F (‐30 C) to +203 F (+95 C), the Dayco barrier refrigerant hose style DBH is recommended for use with Dayco coupling styles BL and SB.

Dayco Transmission Oil Cooler/Power Steering Return Line Hose

Dayco Transmission Oil Cooler/Power Steering Return Line Hose

Designed to connect the transmission in light vehicles to an external cooler or as a return line between the power steering mechanism and the hydraulic pump.

Dayco’s transmission oil cooler/power steering return line hose has a synthetic rubber tube and cover to resist oil, ozone and aging due to heat. Reinforced with braided cord for increased strength, this hose has a working pressure of 250 psi. It is designed to handle transmission oil temperatures up to +257 F (+125 C) and is similar to SAE J189 type hose.

*NOT suitable for power steering pressure lines.

Dayco Windshield Washer/Vacuum Tubing

Dayco Windshield Washer/Vacuum Tubing

Designed to replace worn windshield washer tubing, as well as general automotive vacuum applications such as retractable headlights, sensors and more.

The Dayco windshield washer/vacuum tubing features a flexible, long‐life rubber construction that resists oil, grease and heat deterioration. It can also remain flexible at low temperatures with a temperature rating of ‐40 F (‐40 C) to +212 F (+100 C). This tubing meets the material specification for SAE J1037 and is available in either 6' clamshell packs or 50' spools, for dispensing the exact length needed.

Dayco Plastic Fuel Line and Vacuum Tubing Connectors

Dayco Plastic Fuel Line and Vacuum Tubing Connectors

Developed as a splice between vacuum line tubing, fuel line hoses, coolant hoses, or other small I.D. hoses and is ideally suited for all jobs requiring  ³⁄₃₂", ¹⁄₈", ⁵⁄₃₂" and ³⁄₁₆" I.D. connections.

These Dayco glass‐filled nylon, straight, “Y”, elbow, tee and reducing connectors produce a leak‐proof splice for various hose connections. A molded circumferential flange provides a hose stop that ensures that it is inserted to the proper depth. The connectors are packaged and sold in poly bags, one per package.

Dayco Emission Control Carburetor Pre‐Heater Duct Hose

Dayco Emission Control Carburetor Pre‐Heater Duct Hose

Designed to connect the air cleaner to the exhaust manifold to prevent carburetor icing in cold weather.

The Dayco emission control carburetor pre‐heater duct hose features a heavy duty, flexible aluminum core and corrugated construction that can easily be cut with a sharp knife to facilitate the proper fit between air cleaner and exhaust manifold. The close inside diameter tolerance provides a tight fit to reduce carburetor icing.

Dayco Autoflex Defroster Duct Hose

Dayco Autoflex Defroster Duct Hose

Designed for all under‐dash air connections, hot or cold, including defroster vents and fresh air intakes.

The Dayco Autoflex defroster duct hose is made with tough, lightweight and flexible reinforced vinyl. The hose can be installed in minutes and can be clamped or taped to existing fittings. Available in 15 I.D. sizes, it services a wide range of applications. Individually boxed 6' lengths are compressed to 28" per box for easy stocking.

Dayco Anti‐Smog/PCV Hose

Dayco Anti‐Smog/PCV Hose

Designed for vehicle applications where petroleum vapors and blow‐by gases are recirculated through the intake manifold for reduced emissions, and on gasoline engines for fuel line applications.

The Dayco anti‐smog/PCV hose features a tube and cover compound that resists oil and helps reduce emissions to acceptable EPA levels. The single ply of cord reinforcement provides increased strength and flexibility. Meeting SAE J30R7 requirements, the Dayco anti‐smog/PCV hose is available in either 50' cartons or 20" clamshell packs for ease of merchandising.

Dayco Hose Clamps

Dayco Hose Clamps

Designed for automotive and fleet applications where hose clamping is required, all Dayco hose clamps feature a heavy duty worm gear with stainless steel band and housing. The four piece design and arched band slots provide added strength and smooth operation.

  • Standard clamps feature a zinc plated, slotted, hex head screw
  • Stainless Steel clamps feature a 410 grade, slotted hex head screw
  • High Torque clamps feature an extra wide band with all stainless steel super heavy duty construction, a 410 grade, slotted hex head screw
  • Silicone clamps which are designed for use silicone hoses feature an extended inner liner that covers the band slots to prevent hose damage, and a yellow zinc plated, slotted hex head screw
Dayco Connectors

Dayco Connectors

Designed for use with all traditional fuel and coolant hose applications, these Dayco glass-filled nylon, straight, “Y”, elbow, tee and reducing connectors produce a leak-proof splice between vacuum line tubing, fuel line hose, coolant hose, or other small I.D. hoses. Ideally suited for all jobs requiring ³⁄₃₂", through ³⁄₄" I.D. connections. A molded circumferential flange provides a hose stop that assures that the hose is inserted to the proper depth. The connectors are packaged and sold in poly bags, one per package.

Dayco Factfinder® Gauge II

Dayco Factfinder® Gauge II

For measuring a range of utility and industrial belts that measure up to 100"
SKU 93859

A quick check shows the top width, length and part number of the corresponding Dayco FHP utility V-belt, GPL premium utility belt, industrial A and B belts, or 3VX and 5 VX Dayco Gold Label® VX-wedge belts.

Dayco Factfinder® Gauge III

Dayco Factfinder® Gauge III

For measuring all multi-ribbed belts up to 115" in length.
SKU 93860

Measuring all multi-ribbed belts, including competitive and OEM belts, the Dayco Factfinder® gauge III is meant for belts up 115" in effective length for multi-rib belts and 100" for V-belt lengths to indicate the corresponding Dayco replacement belt size.

Dayco Factfinder® Gauge III Extension

Dayco Factfinder® Gauge III Extension

Extends measurement of V-belts up to 130" and multi-ribbed belt measurements up to 145”.
SKU 93863

Easily attaches to the Dayco Factfinder® gauge III for accurate measurement of larger V-belts and multi-ribbed belts and quick identification of corresponding Dayco replacement sizes.

Dayco Factfinder® Gauge III Brackets

Dayco Factfinder® Gauge III Brackets

For use in mounting Factfinder III gauges.
SKU 93871

These holding brackets allow the Dayco Factfinder® gauge lll to be mounted on a wall, counter or convenient location of your choice so that both hands can be free for more accurately measuring and verifying the exact size conventional V-belts or multi-rib belts needed.

Dayco OAP and OAD Tool Kit

Dayco OAP and OAD Tool Kit

Designed to provide all of the tools needed to remove and fit a new OAP or OAD.
SKU 93887

Made from the highest quality materials, this 13-piece kit comes in a handy molded carrying cases and features interchangeable components to work on almost all vehicles. OAPs and OADs are application-specific replacement parts, and if a vehicle requires an OAP or an OAD, the same category of pulley must be installed. The kit includes:

  • Removal and installation instructions
  • OAP/OAD connectors in 33T spline and 17mm hex
  • Alternator shaft connectors in T40, T50, M8, M10, 8 hex and 10 hex
Dayco Tensioner Retainer Pin Set

Dayco Tensioner Retainer Pin Set

Designed for the installation and maintenance of timing belt tensioners.
SKU 93872

To safely retain the hydraulic pin of a timing belt tensioner in a compressed state during service, Dayco created the tensioner retainer pin set. Consisting of six spring-hardened steel pins in various sizes, the set accommodates a wide variety of timing belt tensioners, including certain serpentine belt applications.

Dayco Belt Diagnostic Kit

Dayco Belt Diagnostic Kit

Designed to identify misalignment and tension issues or worn belts.
SKU 93874

Used to diagnose misalignment, tension and wear within a belt drive system, the Dayco belt diagnostic kit has all the tools needed to properly identify misalignment, belt tension and worn multi-rib belts. The kit includes a belt tension gauge, two-piece laser alignment tool, belt wear gauges, tension chart, replacement battery and a battery installation wrench.

Dayco Belt Tension Gauge

Dayco Belt Tension Gauge

Designed to adjust a belt to the correct installation tension.
V-belt SKU 93865 / Serpentine belt SKU 93866

The Dayco belt tension gauge allows technicians to accurately adjust accessory drive belt tension. The tool helps ensure drive belts are properly adjusted. Improperly tensioned belts can have noise issues and cause excessive accessory drive bearing wear.

Dayco aWEARness Gauge

Dayco aWEARness Gauge

Designed to measure a belt’s rib depth, rib profile and cracks.
SKU 047337

The aWEARness gauge helps technicians pinpoint wear on EPDM belts by measuring specific characteristics – like depth, profile and number of cracks. By placing the notched area lengthwise over the ribbed section of the belt, this pocket size device quickly and easily identifies the potential of serpentine belt failure. If there are more than four cracks per inch in the belt, technicians should replace the belt.

ela® Belt Installation Tool

ela® Belt Installation Tool

Designed for use on the installation of a range of Dayco ela® stretch belts.
SKU 93875

Stretch belts should not be installed by prying the belt on the pulley – which is why Dayco designed its ela® belt tool. The tool comes with a reusable mounting bolt and can be used on multiple Dayco ela “stretch” belt applications. Some ela belts require only a simple zip tie to install, so users should verify if the Dayco ela® belt installation tool is required for their specific application.

Dayco Suburu® ela® Belt Installation Tool

Dayco Suburu® ela® Belt Installation Tool

Designed for installing ela® belts on Suburus.
SKU 93878

This Dayco tool helps ensure proper installation of Dayco ela® belts on 2008-2010 Subaru® Impreza®, Forester® and Outback® models with 2.5L engines. Attempting to install the belt without this tool will result in damage to the belt.

Dayco Timing Belt Cam Tool

Dayco Timing Belt Cam Tool

Designed for locking timing belt gears during service.
SKU 93873

To retain engine timing position during timing belt removal and installation, twin camshafts must be locked on their timing marks. The Dayco timing belt cam tool’s adjustable arms fit into the gear’s teeth and expand to securely hold in place gear sizes from 4" to 6" with gear separation up to 3".

Dayco Telescopic Retrieval Pole

Dayco Telescopic Retrieval Pole

Designed to provide extra reach for retrieving belts or hoses from wall boards or finger racks.
SKU 9386

This sturdy aluminum telescoping pole extends from 52" to 94-1/4", providing that extra reach for retrieving belts and hoses from wall boards or racks. When extended to the desired length, the poles’ unique twist and lock feature prevents the pole from unexpectedly retracting.

*NOT recommended for uses other than belt and hose retrieval.

Dayco Belt Installation Tool

Dayco Belt Installation Tool

Provides extended reach for installing serpentine belts, V-belts.
SKU 93871

The Dayco belt installation tool has been designed to help install belts that are located in hard-to-access areas. The three-pin design provides convenient belt push-pull capability while the handle provides the twisting control required to install belts in confined or restricted areas.