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ACDelco drive belt tensioners keep your belts just right—not too loose, not too tight. They offer a perfect complement to the full line of ACDelco belts with high-quality bearings that resist dirt and salt. Hundreds of models are available, with a variety of pulley styles. Reduce belt wear and keep them taut with the long-lasting replacement drive belt tensioner designed to fit your application.
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$54.99
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$96.99
Put some tension on your belts with Dorman automatic belt tensioners. Rigorously tested for sustained performance by a team of product and quality engineers, Dorman's automatic belt tensioner assemblies are designed to provide proper tension to vehicle serpentine belts. They incorporate a damping design, torsion spring, and sealing system to ensure the proper functioning of many integral engine components. Replace worn-out or weak parts with Dorman automatic belt tensioners. The automatic belt tensioner should be replaced whenever the serpentine belt is replaced. Features include: * Quality tests include torque testing, spring-back testing, corrosion-resistance testing, and on-vehicle testing * Solid steel or aluminum construction for long-lasting durability * Highly resistant to heat and shock * Designed to fit properly every time
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$51.99
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$104.99
ACDelco GM Genuine Parts idler pulleys are a part of the accessory belt system on the front of the engine. These pulleys are GM recommended replacement parts for your vehicle's original component. Pulleys can be ribbed or smooth, contain a sealed ball bearing, and are used to divert the drive belt to the components, such as the alternator, water pump, or power steering pump. GM Genuine Parts idler pulleys have been manufactured to fit your GM vehicle, providing you with the same performance, durability, and service life you expect from General Motors.
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$50.99
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$73.99
Replace your old, wobbly pulley with these PSC power steering pulleys. Made from high quality materials, they meet factory specifications to ensure a precise fit on your power steering pump. An integral part of the drive system for belt-driven steering pumps, PSC power steering pulleys have you covered.
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$75.00
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$85.00
ICT Billet accessory belt tensioners are made from aerospace-grade billet aluminum. They are perfect for high-rpm applications where the automatic belt tensioner throws the serpentine belt on deceleration. ICT Billet accessory belt tensioners are available in Corvette, Camaro, and truck spacing; plus, they include a pulley and all mounting hardware.
( 14 )
$87.99
March Performance crankshaft pulley hub adapters have been specially designed for use on Chevrolet LT1 and LS Series engines. They're manufactured from high-quality material and install with no modifications. The hub adapters enable you to install a serpentine belt conversion when retrofitting a late model LT1 or LS series engine into your street rod or muscle car. Order the model recommended for your vehicle application.
( 2 )
$111.99
Holley idler pulleys are designed to help keep your belt in place during high rpm. They are manufactured from quality materials and are available in different designs to fit your specific belt.
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$65.39
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$79.95
Dayco No Slack automatic belt tensioners can resolve belt squeal, improper tracking, or an accessory that has stopped working completely. Featuring "flat spring" technology, these tensioners allow for an increase in torque to be transmitted to the belt when needed, compensating for stretch and wear, while maintaining constant tension throughout the life of your belt. They are built with tough, long-lasting cast aluminum housings and arms, steel locator pins, and arm plates. Engineered to outperform and outlast OEM parts, take up the slack with Dayco No Slack automatic belt tensioners.
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$50.99
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$88.99
ACDelco Gold idler pulleys are built to offer reliable operation under severe conditions. They're dependable in any weather or climate offering, you year-round performance. Mounting hardware is included on some popular applications. These pulleys are manufactured to meet or exceed your expectations for fit, form and function. Order the model recommended for your vehicle.
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$53.99
ACDelco V-ribbed serpentine belts resist the penetration of water, acids, and ozone--plus, they provide broad temperature tolerances. Their patented advanced technology design incorporates EPDM rubber, which stays soft and pliable longer than traditional belt materials. Neoprene and certain grades of rubber can harden, causing unwanted squealing and a shorter belt life. The flexible construction of these serpentines allows each belt to withstand many topside and backside bends. ACDelco offers their V-ribbed replacement belts in various lengths, widths, and rib quantities for a wide range of fitments.
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$50.99
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$105.99
Poorly engineered underdrive units can lead to a loss of power steering and poor voltage at lower rpm's. Add additional horsepower to your race car while keeping all systems go with PSC underdrive serpentine pulley kits. These smaller pulleys slow the system's rate of rotation, providing 5 to 15 hp gains at the wheels. The higher rpm's involved in racing allow for greater reductions, but should be approached cautiously on street vehicles. The pulleys in these kits are machined from aircraft-grade aluminum for incredible strength-to-weight ratios. When every bit of horsepower counts, equip your ride with a PSC underdrive serpentine pulley kit.
( 4 )
$75.00
Stop that high-pitched squeal! Motorcraft belt tensioners keep your belt snug at a fraction of dealer prices. They are direct OEM replacements and are application specific; not "one-size-fits-all". To minimize poor performance and premature failure, they are designed with less operating range variation under tension. Featuring cast-aluminum spring cases and arms to resist cracking and fatigue, their sealed-for-life bearings provide a long service life. Features include: * Meet Motorcraft 10-year/150,000-mile durability specifications * Designed to perform in harsh underhood environment * Easy to install * Recommended by Ford Motor Company
( 5 )
$87.99
Today's modern vehicles possess complex accessory drive systems that require the replacement of all worn components in order to operate properly. Dayco Demanding Drive kits provide all the required components for a quiet, problem-free belt drive system, and have been designed to address the most demanding drives in the market. The kits include a Poly Rib W2 serpentine belt featuring Dayco's "W" rib design--the second generation of the most innovative advancement in belt technology manufactured with state-of-the-art processes making the belts some of the quietest available. These application-specific Dayco drive kits include, where applicable, Poly Rib W2 serpentine belt, No Slack automatic belt tensioner, No Slack idler/tensioner pulley, and a overrunning alternator pulley.
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$64.99
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$108.99
Eliminate the annoying squeal under your hood by replacing damaged or cracked belts with ACDelco FleetRunner serpentine belts. They feature quality materials to help provide long life, minimize noise, and reduce tension loss. ACDelco offers their FleetRunner serpentine belts in various lengths and groove quantities to match specific applications. The belts are available for nearly two dozen position/applications in the engine bay.
( 2 )
$57.99
ACDelco GM Genuine Parts accessory belt tensioner brackets offer a precise fit for an easier installation. These replacements are designed, engineered, and tested for GM vehicles, so you get the quality you know and trust. The brackets are available in different styles for fitment on hundreds of vehicles from the 1990s and up. Keep your belt tensioner secure with GM Genuine Parts from ACDelco.
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$81.99
ICT Billet alternator brackets are made from aerospace-grade billet aluminum. They come packaged in kits that include alternator brackets, bolts, spacers, and all the necessary mounting hardware. They bolt to the face of the block and can only be used on blocks with at least two mounting holes on the front of the block.
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$99.99
Continental OE Technology Series Multi-V belts are factory-style replacements covering virtually all vehicle applications. These new straight-ribbed multi-V belts offer original fit and function that professional technicians appreciate for their customers. The serpentine belts are constructed with advanced EPDM rubber compounds that improve durability and deliver a quieter ride. They're available in well over a hundred lengths, with rib options ranging from three to 14. Order the model recommended for your car, truck, van, SUV, or crossover.
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$50.99
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$97.99
ICT Billet belt tensioner relocation bracket kits reposition your belt tensioners to maintain correct alignment to the belt. Ensure that your belt remains at a nearly constant tension for maximum accessory drive component life, while still preventing belt slip. When properly applied, these kits provide consistent tension and help dampen belt system vibrations. They are made from aerospace-grade billet aluminum and include a bracket, bolts, spacers, and, where noted, a pulley.
( 2 )
$95.99
Innovators West alternator pulleys offer the performance you need. Constructed from premium materials and precision-finished, these alternator pulleys work well and look good. Available as engine/alternator-specific or universal fitment and in multiple groove counts. Innovators West alternator pulleys has you covered.
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$105.45
Continental OE Technology Series idler pulleys are produced to OE form, fit, function, and material specifications to ensure optimum performance and durability. Their plastic pulleys feature glass-reinforced thermoplastic for optimized dimensional control and running surface durability, with a molded-in ball bearing for optimal fit and long life. Steel pulleys are manufactured from precision steel stampings and e-coated for superior corrosion resistance.
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$58.99
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$66.99
Continental Accu-Drive tensioners are designed so that the belt tension, frictional damping, and amount of belt take-up are ideal for your application. All Continental Accu-Drive automatic belt tensioners meet or exceed OEM specifications for all major car manufacturers.
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$50.99
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$105.99
During a power steering pump service or a build is a great time to replace your pulleys with Cardone new power steering pulleys. They're manufactured using the most stringent quality processes to deliver smooth, consistent performance in any driving condition. As a direct-fit component, each pulley installs easily (front fascia designed with O.E. cutouts, where applicable), saving precious labor time while providing peace of mind. Build it better and order the Cardone new power steering pulley designed to fit your application.
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$57.99
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$59.99
March Performance aluminum serpentine water pump pulleys are precision CNC-machined to run perfectly true. They are machined from 6061-T6 aluminum for extra strength and wear, and feature a no-polishing clear powdercoated finish. These water pump pulleys are available in performance ratios for increased horsepower, mid-performance ratios, and high water flow ratios. They are designed to increase cooling during critical low-speed driving to prevent overheating.
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$106.99
Ford Genuine Parts belt tensioners are engineered for select Ford and Lincoln vehicles to provide the proper tension on the drive belt. They're designed with less operating range variation under tension to minimize poor performance and premature failure. These replacements are made from original materials and specs to ensure proper fit and long-lasting performance.
Not Yet Reviewed
$59.99
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