Dayco ELA® belts, also known as “stretch” belts, are specifically designed for 2 to 4 point drives that do not require tensioning. Although these belts may look like standard poly rib belts, they are very different. These specially designed belts have self-tensioning capabilities required by specific original equipment (OE) drives designed for a “stretch” belt. Vehicles that are manufactured with “stretch” belts must replace those belts with “stretch” belts. These belts are not interchangeable with standard constructed belts of the same size.
Dayco ELA® belts utilize a proprietary EPDM construction that is designed to elongate over the fixed pulley system, and then maintain the required belt tension over the life of the belt. The backbone behind the Dayco ELA® belt is its specially developed 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. 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.
“Stretch” belts have unique installation instructions depending on the OE application. Installation may require a specialized tool for the application or a simple zip tie. Do not attempt to install by prying the belt on the pulleys. Dayco provides detailed instructions on the reverse side of the sleeve.
It is estimated that nearly one-third, or about 70 million, vehicles currently on the road utilize a timing belt. Without proper maintenance and replacement, the timing belt can break, resulting in costly repairs. Manufactured with tough, wear-resistant fabric, high tensile strength cord and molded tooth surface, the Dayco timing belt provides consistent slip-proof power transfer and high resistance to oil and engine heat.
Dayco is recognized by the automotive industry as a world leader in the manufacture of timing belts. The Dayco timing belt, designed for OHC and DOHC type engines, features a molded cog design which runs quieter and is more economical. Dayco premium, high modulus glass fiber cord delivers precise length stability to keep the engine running smoothly over the life of the belt.
The belt’s compounding and tooth configurations are designed for specific applications ranging from normal service to high performance, high temperature engines, where HSN compound is used. The part number includes three final digits that conform to industry standard numbering.
Dayco timing belts meet all original equipment manufacturer performance requirements.
Designed for efficient power transmission to the vehicle accessory, Dayco has combined raw-edge construction with Dayco’s patented top cogged design to ensure the top performance on vehicles and drives that still utilize V-belts. The Dayco Top Cog V-Belt delivers more flexibility and increases airflow around the belt so it runs cooler and lasts longer than most competitive belts. Three plies of neoprene impregnated fabric resist heat, oil and grease while a specially-formulated treatment of the polyester cord provides the strength, stability and reliability that are required from one of the most innovative, top-performing V- belts for nearly 30 years.
Dayco approaches the market differently from most of its competition, believing that one serpentine belt construction will not perform best with all applications.
Built for cars and light-duty trucks, Dayco’s extensive line of Poly Rib serpentine belts are engineered for high mileage, demanding drives found in today’s vehicles. As the manufacturer of the first original equipment multi-ribbed serpentine belt, Dayco’s commitment to automotive product excellence and innovation is unwavering.
The Dayco Poly Rib W Profile serpentine belt is the most innovative advancement in serpentine belt design in over 25 years. Developed through extensive laboratory and actual road mileage testing, this unique rib profile EPDM belt has been engineered to conform to high mileage, worn or misaligned drives and help eliminate noisy belt conditions.
Constructed with aramid reinforced EPDM compounds, the Dayco W Poly Rib serpentine belt delivers more than just OE required quality; it delivers the solution to troublesome drive problems.
Dayco manufactures other serpentine belt constructions for application-specific belt drive systems, such as the ela® stretch belt, special deep rib belts for certain import applications, Linear Groove Technology belts and double-side belts.
Also known as a hydraulic tensioner, the Dayco Hydraulic Timing Belt Actuator is designed to absorb changes in the loss of timing belt tension.
A loss in timing belt tension may be caused by variations in engine temperatures, speed or general wear and aging of the belt. The Dayco Hydraulic Timing Belt Actuator maintains constant tension on the timing belt during crankshaft revolution which reduces noise, prevents belt flapping and ensures proper transmission efficiency throughout the entire service life of the belt.
Dayco is one of the first aftermarket companies to offer Hydraulic Timing Belt Actuators for the aftermarket. These parts are readily available through all Dayco aftermarket channels of distribution throughout North America.
Designed for replacement of worn or damaged original equipment manufacturer timing belt tensioners and idler pulleys, Dayco Timing Belt Component Kits include pre-packaged tensioners, idler pulleys and instructions, each matched to a specific make, model and year of vehicle to assure replacement part accuracy and time-saving convenience.
Dayco Timing Belt Component Kit tensioners and idler pulleys are manufactured to meet the critical original equipment quality, fit, form and function requirements demanded by both domestic and imported vehicle manufacturers to ensure long-lasting peak performance.
Dayco Timing Belt Component Kits eliminate the need to pay high automotive dealership tensioner and idler pulley prices, the time consuming travel time to and from the automotive dealership and the frustration experienced from lack of the automotive dealership replacement tensioner and idler pulley inventories.
Dayco Timing Belt Component Kits are in stock and readily available through all Dayco aftermarket channels of distribution.
Designed for the replacement of worn or damaged original equipment manufacturer timing belts, Dayco Timing Belt Kits include belts, tensioners and idler pulleys. Dayco offers one of the most complete lines of timing belt kits in the market and all kit components and belts are manufactured to the critical original equipment quality, fit, form, and function requirements demanded by both domestic and foreign name plate vehicles.
Dayco also offers Timing Belt Kits with Seals. These kits may include timing belt(s), tensioner(s), hydraulic tensioner, balance shaft belt, pulley(s), cam and crankshaft seals and lubricant.
Designed for the replacement of worn or damaged timing belts, tensioners, belt idlers, hydraulic actuators and water pumps, the Dayco Timing Belt Water Pump Kit is a convenient solution when replacing all the major components in a timing belt job. All kit components are manufactured at the highest quality facilities the automotive market has to offer and pre-packaged for safe delivery. These kits include trilingual installation instructions and also come with an extended warranty to insure that the professional and do-it-yourselfer are confident they are using the very best products for their timing belt replacement.
Dayco offers the most complete line of timing belt water pump kits in the market, which include:
These Dayco stand-alone seal kits provide users with the required oil seals to complete a complex timing system job. These application-specific kits cover every application in which Dayco offers a timing belt. Kits may include cam seals, crankshaft seals and lubricant.
The Dayco Small I.D. Molded Heater Hose is designed to replace OEM coolant hose in applications where molded hose in small diameters (1” I.D. or smaller) is required. The molded configuration eliminates the need for multiple connections of hoses and clamps when added to Dayco’s line of molded heater hose and assemblies. The knitted reinforcement and PDM construction provides high strength and resistance to detrimental environmental elements, coolants, and temperature variations of -40F (-40C) to +257F (+125C). The Dayco Small I.D. Molded Heater Hose line provides 98 percent coverage in the market. In addition to meeting SAE J20R3, Class D-1 requirements, this hose is designed to meet Type EC electro-chemical requirements as specified in SAE J1684. For many of the OE parts that has a quick connect end, Dayco Small I.D. Molded Heater Hoses are also made with a quick connect assembled onto the hose for fast, convenient installation. These hoses include a convenient plastic hang strap for easy inventory storage.
Designed for vehicles that require special heater hoses with molded 90 elbows to fit the engine compartment configuration, the Dayco 90 Molded Coolant Hose’s knitted reinforcement and EPDM construction provides high strength and resistance to detrimental environmental elements, coolants, and temperature variations of -40F (-40C) to +257F (+125C). In addition to meeting SAE J20R3, Class D-1 requirements, this hose is designed to meet Type EC electro-chemical requirements as specified in SAE J1684. This hose can be used to replace heater hose and other coolant hoses where a 90 elbow is required. This hose can also be used with Dayco’s Heater Hose Connectors to make a variety of routing configurations. Dayco’s 90 Molded Coolant Hose has a convenient plastic hang strap to simplify inventory management.
Precision molded in standard lengths, the Dayco Flex Radiator Hose is designed to replace straight or molded radiator hoses when routing allows. The knitted reinforcement and EPDM construction meets SAE J20R4, Class D-2 requirements, preventing splitting, ballooning, and elongation, and resisting ozone and other detrimental environmental elements, coolants, and temperature variations of -40F (-40C) to +257F (+125C). The corrugations provide excellent hose flexibility without flattening or collapse. The Dayco Flex Radiator Hose has a convenient plastic hang strap attached for quick and easy merchandising.
Designed for a wide range of light and heavy duty truck applications where the routing is relatively straight, the Dayco Straight Radiator Hose features knitted reinforcement and EPDM construction. It meets SAE J20R4, Class D-2 requirements and provides high strength and resistance to ozone and other detrimental environmental elements, coolants, and temperature variations from -40F (-40C) to +257F (+125C).
Designed for use in cold climate applications where efficient heat transfer is important for comfortable and cost-effective operation of the vehicle, this premium Dayco Insulone Heater Hose delivers heated coolant to the heater core with minimal heat loss. The EPDM rubber compounds and spiral reinforcement gives this hose excellent burst strength, heat resistance 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 is similar to SAE 20R3, Class D-2 with a temperature range of -40F (-40C) to +257F (+125C).
Over-driving balancers are a high performance alternative. Changing the balancer diameter can alter the performance of the accessories and engine rev speeds. Using the same material and extreme pressure-bonded process as PowerBond™ SFI race series harmonic balancers, PowerBond can also increase your vehicle’s horsepower output with Dayco overdrive harmonic balancers. PowerBond overdriving harmonic balancers increase the diameter of the pulley, which increases the speed of the supercharger leading to increased boost. These help reduce the need to lower the diameter of the blower pulley resulting in less belt wrap.
PowerBond™ standard replacement harmonic balancers offer the professional engine rebuilder or shade tree mechanic the highest quality product in the automotive aftermarket. PowerBond balancers use a SG (Spheroidal Graphite) iron casting which is considered near-steel strength material. PowerBond balancers use both inserted and pressure-bonded rubber that produces rubber strength that is three times greater than stock. PowerBond standard replacement harmonic balancers are available for most popular passenger cars, light commercial and four-wheel drive applications.
The PowerBond™ street series product line brings bonded balancer technology within the budget of every performance street engine builder. PowerBond street balancers are also perfect for limited spec race classes, such as late model stock that require an OEM style balancer. The bonded dampening rubber in every PowerBond street series balancer eliminates spinning and component separation giving reliable performance in engines used up to 6,500 RPM. PowerBond street series balancers use high strength SG (Spheroidal Graphite) iron rings and hubs that are pressure-bonded. PowerBond uses Dayco Race Series high pressure, low cure that features a natural rubber developed in Dayco laboratory. All PowerBond street series balancers feature an etched black primer with a two coat clear coat and fully etched laser timing marks.
The PowerBond™ race series brings the advantages of bonded balancers to high revving and high horsepower street/race applications where an SFI approved balancer is required. PowerBond Race Series balancers have been tested beyond 21,000 RPM without failure.
Every PowerBond race series balancer features a precision CNC machined AISI 1045 forged steel hub bonded to an equally strong steel inertia ring. Advanced design mean that race series balancers are very light for an all steel product. In most cases they are only marginally heavier than the original cast iron balancer and generally much lighter than other all steel balancers on the market. The steel inertia ring on the race series models is positively protected against forward and backward movement. PowerBond uses Dayco Race Series high pressure, low cure that features a natural rubber developed in Dayco laboratory.
Every model has easy to read computer etched timing marks. All PowerBond race series balancers meet SFI specification 18.1.
PowerBond™ has developed the economical Claimer series style balancer. Using pressure bonding technology, the PowerBond Claimer series has three times the push-apart strength of traditional inserted OEM balancers for the best possible resistance to inertia ring spinning and dislocation. Claimer Series products are designed for use on “Claimer” engines in Modified stock car racing. PowerBond Claimer balancers also use SG (Spheroidal Graphite) iron ring and hub for maximum strength and crack resistance. Each Claimer Series harmonic balancer comes with easyto- read laser etched 360 degree timing marks.
Designed for high performance supercharged engines
Under-driving balancers are a high performance alternative. Changing the balancer diameter can alter the performance of the accessories and engine rev speeds. Using the same material and extreme pressurebonded process as PowerBond™ SFI race series harmonic balancers, PowerBond can also increase your vehicle’s horsepower output with Dayco underdrive harmonic balancers. PowerBond race series underdrive harmonic balancers help reduce the parasitic power loss caused by the front drive accessories. Underdriving also helps prevent over-revving alternators.
Designed as a high performance alternative for diesel powered passenger trucks.