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Regardless of whether your application is high performance street or all-out race, knowing that your accessory belt will stay in place at high rpm is extremely important. COMP Cams belt tensioners with idler pulleys fit all GM LS passenger car engines, including LS1, 2, 3, 6, and 7 and feature a higher pulley sidewall so that your serpentine belt always stays in place. The belt tensioners feature lightweight 6061-T6 aluminum billet construction and are black anodized to be attractive and functional additions to any LS passenger car engines. These COMP Cams belt tensioners with idler pulleys replace the stock LS engine unit but use the factory drive belt. Best of all, they are assembled and torqued at the factory for quick and easy installation. The new systems do not require disabling the stock tensioner and keep the correct tension on the belt, regardless of the demand. These components are not designed to work with LS truck engine applications.
( 18 )
$200.95
March Performance AMC serpentine drive kits spin performance and style. These pulley and bracket units are CNC-machined from solid billet 6061-T6 aluminum that offers a perfect fit, high strength, and a spectacular look. The kits come complete with stainless steel tensioning rods, chromoly rod ends, and necessary Grade 8 mounting hardware. March AMC alternator bracket kits include: * Alternator pulley with fan and nose cover * Water pump pulley * Alternator bracket * Crank pulley Kits with power steering include everything above, plus: * Power steering pulley with nose cover * Bracket
( 3 )
$470.99
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$984.99
On Sale
Steeda underdrive pulleys help you achieve more horsepower and torque—along with better gas mileage! These serpentine-style units reduce the parasitic accessory drag on your engine, slowing the speed on parts like the alternator, water pump, and crankshaft by about 25 percent. The well-built pulleys are manufactured from one-piece nodular iron, with special injection-molded rubber to limit vibrations and perform in high temperature areas. Most of Steeda's underdrive pulleys are designed for fitment in various Ford Mustang models. Order the kit tailored for your specific car, then enjoy the newfound power and fuel efficiency you've been losing with older stock components.
( 10 )
$294.95
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$364.95
$261.99
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$328.99
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
Pulleys are what drive your vehicle's belted units—without them, you're going nowhere. The crankshaft pulley, in particular, plays a key role in transmitting power to other elements, such as the alternator and power steering pump. When you're ready to upgrade, the restoration experts at Goodmark offer a line of deep groove crankshaft pulleys for your classic musclecar. Maintain the proper belt tension and function with crankshaft pulleys built to handle the job.
( 7 )
$141.99
Billet Specialties alternator pulleys are precision-machined from 6061 T-6 aluminum and polished to a mirror-like finish. A variety of replacement models are available, from solo pulleys to combo units with both a pulley and fan--even sets with a cosmetic nose cone cover to hide the alternator nut and washer. The billet construction provides strength for a vital engine component, while also offering an aesthetic upgrade under your hood. For looks and performance, choose the Billet Specialties alternator pulley that matches your vehicle specs.
( 10 )
$44.95
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$91.95
Champ Pans water pump pulleys are machined from billet aluminum with a black hardcoat finish. They're available for a variety of engines, including small block Chevys. Choose from upper or lower pulley models, with double or triple grooves—as well as the size, reduction, and ratio needed for your application. Replace your worn water pump pulley with a top-quality unit from the high performance experts at Champ Pans.
( 3 )
$133.50
Crown Automotive offers a variety of power steering pulleys needed to replace older, damaged, or rusty units. These economical pulleys are designed and built to OEM specs for excellent fit and reliable performance. They are available in different materials and groove configurations for fitment on various specified makes and models.
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$13.99
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$34.99
Tough, shiny, beautiful, and powerful are all words that come to mind when looking into Eddie Motorsports V-Drive V-belt pulley drive systems. These multiple-component systems are constructed from billet aluminum for optimum strength, corrosion resistance, and longevity. They include an aluminum water pump, Powermaster 170 amp alternator, Gates V-belts, and all necessary stainless steel hardware. GM Type II power steering pumps and Sanden-style SD7 A/C compressors are used on units with power steering or air conditioning. Polished or clearcoated systems use polished finished components. Choose the options and fitment for your specific application—then enjoy the incredible performance, exceptional style, and tough construction of Eddie Motorsports V-Drive V-belt pulley drive systems.
( 2 )
$1,745.00
In the olden days, two to three V-belts were used to provide power to all of the components on a vehicle; now, a single serpentine belt does all of the work with the help of tensioners. Crown Automotive accessory drive components are the same style, design, and size as the OEM units for easy installation and hookup. They will help keep the belt tight and your vehicle moving down the road under its own power. When your vehicle's serpentine belt system needs new parts, turn to Crown Automotive accessory drive components.
( 1 )
$7.99
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$18.99
Upgrade your transmission cooling with a Fluidyne high performance bar and plate transmission fluid cooler. Designed for the 2020-24 GM 6.6L Duramax, these coolers offer 4x the heat dissipation of factory models, ensuring your transmission runs cooler and more efficiently. With the densest fins per inch in the market, Fluidyne coolers provide superior cooling performance. All internal splitter plates are fully welded, preventing fluid contamination between the cold and hot side fluids. Built from aerospace-grade aluminum with bar plate construction, each unit offers maximum cooling with minimal pressure drop. These direct replacements use existing factory mounts for easy installation. Additional details: * Enhanced heat dissipation * Direct bolt in replacement * Densest fins per inch * Proprietary fin design for highest performance * Powdercoated with a proprietary heat-wicking compound * Over 4x the heat exchanging capacity compared to the stock cooler
Not Yet Reviewed
$499.00
Clearance
Goodyear tensioner pulleys are direct replacements for automotive stock tensioners, and are available in a variety of configurations for use with applications such as a serpentine belt. These units are made from durable materials, including steel and thermoplastic, and feature compatible fitment with literally hundreds of vehicles spanning several decades. Goodyear replacement tensioner pulleys meet or exceed OEM specifications for all major car manufacturers.
Not Yet Reviewed
$99.99
$29.50
Billet Specialties Tru Trac serpentine systems witout A/C not only look awesome—they also perform! They are designed to increase the efficiency of the alternator and compressor by eliminating belt slippage. Order the unit tailored for fitment on your particular vehicle. Tru Trac serpentine systems include: * Polished Powermaster 105 amp 1-wire alternator * Polished billet aluminum alternator fan and pulley * Edelbrock reverse rotation water pump * Polished billet aluminum water pump pulley * Polished billet aluminum bridge bracket * Patent-pending billet aluminum tensioner specifically engineered for each Tru Trac serpentine system * Polished billet aluminum tensioner pulley * Polished billet aluminum crankshaft pulley * Polished ARP 12-point stainless steel fasteners * Goodyear Gatorback 6-rib serpentine belt * Comprehensive installation manual
( 2 )
$2,183.95
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$2,940.95
Clearance
OMIX-ADA accessory belt tensioners are just what you need to replace broken, cracked, or aging units. When checking your belts, you should always inspect the tensioners for tightness and wear. If they break while driving you won't make it much farther than the side of the road. These OE-style units are a direct fit, constructed from hard plastic and steel, and will extend accessory drive bearing and belt life. No one likes breaking down on the road, so keep one step ahead of potential problems with OMIX-ADA accessory belt tensioners.
Not Yet Reviewed
$149.99
$89.99
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$184.99
Clearance
All American Billet alternator fan pulleys are machined from aluminum with a polished finish. These replacement units spin the alternator and prevent it from overheating (which can damage the alternator's internal wire, bearings, and brushes). The pulley can help improve efficiency of the vehicle, reducing fuel consumption. Order the size and style needed for your application.
Not Yet Reviewed
$124.99
$89.50
On Sale
COBB Tuning lightweight crank pulleys are CAD-designed and CNC-machined from billet 6061-T6. They're anodized to withstanding the toughest of under-engine conditions. These lightweight units can improve acceleration by reducing the rotational mass of the stock unit by as much as 4 lbs. The pulleys specifically maintain the stock diameter, so as to not under-drive and cause electrical woes for you; they also maintain the stock drive belt surface for a quick and easy install, by even the most novice of owners. Replace your factory main pulley with the performance of a COBB Tuning lightweight crank pulley. Order the model designed for your vehicle application.
Not Yet Reviewed
$165.00
$148.50
On Sale
APR 3.0 TFSI supercharger drive and crank pulley upgrade kits have been designed to dramatically increase the rotational speed of the factory supercharger. When combined with APR's Ultra-Charger Throttle Body Upgrade in a dual pulley setup, the system is alleviated of power robbing inlet restrictions, allowing the engine to achieve exciting new levels of performance! The supercharger drive pulley decreases the diameter of the factory pulley from 63.25mm to 57.75mm, which in turn spins the supercharger 9.5 percent faster. This results in a healthy bump in horsepower and torque across the entire rpm range with the supercharger operating at a higher rate of speed. The pulley is CNC-machined from billet stainless steel, E-coated factory black for an OEM appearance and is press fitted to the factory supercharger unit. The supercharger crank pulley increases the diameter of the factory pulley from 162mm to 187mm, which in turn spins the supercharger 15.4 percent faster. This results in a larger bump in horsepower and torque across the entire rpm range, as the supercharger is spinning at an even higher rate of speed. The pulley is CNC-machined from light weight billet aluminum with weight saving pockets throughout and has an anodized black finish and includes new crank pulley bolts. It retains the factory harmonically balanced crank pulley and bolts on top of the existing unit. Upgrading both the supercharger drive and crank pulleys results in the factory supercharger spinning faster than stock, which results in an even higher horsepower and torque gain across the entire rpm range. However, at the airflow levels achieved with a dual pulley setup, maximum power is severely restricted by the factory throttle body unit. APR's Ultra-Charger Throttle Body Upgrade is necessary to take full advantage of the dual pulley configuration and is available in platform specific variations for the B8/B8.5 A4/A4/S4/S5, Q5/SQ5 and C7 A6/A7.
Not Yet Reviewed
$599.95
$538.95
Summit Bucks
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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$69.99
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$89.99
When oil, heat, and abrasion combine to weaken most standard accessory belts, Continental OE Technology Series V-belts will still be going strong. Continental V-belts have inherited tough construction characteristics: EPDM rubber compounds, high-strength Vytacord tension members, fiber reinforced helical cogs, and high-traction rubber edges. These features provide higher heat and abrasion resistance, no-slip contact with pulley grooves, a great fit, and improved flexibility—to deliver consistent, efficient performance, mile after mile. Belts wear and need replaced; get more for your buck with longer-lasting Continental OE Technology Series V-belts, available for a wide range of vehicle-specific applications.
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$15.99
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$25.99
Clearance
Mopar Replacement accessory belt tensioners are genuine OE-replacements offering the right fit, function, and peace of mind. Most everyone understands that belts wear out and need replaced. When installing new belts you should replace the tensioners, as well, because they wear out, too. Avoid future problems by choosing from the plentiful selection of quality Mopar Replacement accessory belt tensioners, and keep your Chrysler, Dodge, or Jeep running smoothly.
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$81.99
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$157.99
$35.50
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$91.50
Chevrolet Performance drive belt tensioners keep your belts just right--not too loose or too tight. Chevrolet Performance belt tensioners adjust for the right tension as your belts age and stretch--with no re-adjustments! What keeps your GM engine performance spinning? Chevrolet Performance drive belt tensioners, of course!
( 1 )
$69.99
INA accessory drive belts are reliable FEAD replacement solutions. With ever-increasing loads, your front-end accessory drive belt must handle increased demands. INA quality belts are offered in a variety of lengths and widths for accurate installation to drive your auxiliary equipment, as they transfer larger forces and withstand higher loads.
Not Yet Reviewed
$11.99
Clearance
When your timing belt tensioners wear out and need replaced, choose these direct-fit replacements from Mopar Replacement. They are manufactured from durable quality materials, just like the originals, to fit just like the originals. Choosing genuine Mopar parts delivers the confidence that you have the right part, with the right fit, and the right performance to help you to restore and/or repair your Chrysler, Dodge, or Jeep properly and safely.
Not Yet Reviewed
$174.99
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$176.99
$78.50
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$92.50
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.
( 29 )
$81.99
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