Engine Pulleys
- INA®Drive Belt Idler AssemblyDrive Belt Idler Assembly by INA®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit...Made from sturdy materialsGreat design and function$13.73 - $27.46
- INA®Drive Belt TensionerDrive Belt Tensioner by INA®. The INA is a leading automotive and industrial supplier worldwide. The Company stands for the highest quality, outstanding technology and distinctive innovative ability. The way to convince customers in the...Made from sturdy materialsGreat design and function$37.20 - $268.44
- INA®Drive Belt Tensioner PulleyDrive Belt Tensioner Pulley by INA®. The INA is a leading automotive and industrial supplier worldwide. The Company stands for the highest quality, outstanding technology and distinctive innovative ability. The way to convince customers...Made from sturdy materialsGreat design and function$10.29 - $175.48
- ATP®Engine Crankshaft PulleyEngine Crankshaft Pulley by ATP®. ATP Graywerks Harmonic Balancers are a high quality OE replacement alternative. The parts are developed to the OE design, ensuring they will install properly and function as intended. This design is...Manufactured to OE design ensuring each balancer will install properly and function as intendedDynamically balanced for proper absorption of the crankshaft vibrations$81.64 - $101.40
- Autotecnica®Drive Belt TensionerDrive Belt Tensioner by Autotecnica®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...Made with precision and quality in mindDesigned to meet your specific needs$10.33 - $117.88
- Omix-ADA®Belt TensionerBelt Tensioner by Omix-ADA®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...Performs according to OEM specificationsMeets or exceeds OEM quality standards$19.28 - $195.44
- Omix-ADA®Crankshaft PulleyCrankshaft Pulley by Omix-ADA®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...Performs according to OEM specificationsMeets or exceeds OEM quality standards$26.78 - $43.96
- Professional Parts Sweden®Crankshaft PulleyCrankshaft Pulley by Professional Parts Sweden®. If you need premium-quality yet affordable replacement parts for your Volvo or SAAB, Professional Parts Sweden hits the spot. Top-of-the-line Professional Parts Sweden products are made...Direct replacement for your factory partEngineered to meet exact OEM standards$56.18 - $140.65
- Professional Parts Sweden®Drive Belt Idler PulleyDrive Belt Idler Pulley by Professional Parts Sweden®. If you need premium-quality yet affordable replacement parts for your Volvo or SAAB, Professional Parts Sweden hits the spot. Top-of-the-line Professional Parts Sweden products are...Direct replacement for your factory partEngineered to meet exact OEM standards$14.19 - $27.99
- Professional Parts Sweden®Drive Belt Tensioner PulleyDrive Belt Tensioner Pulley by Professional Parts Sweden®. If you need premium-quality yet affordable replacement parts for your Volvo or SAAB, Professional Parts Sweden hits the spot. Top-of-the-line Professional Parts Sweden products...Direct replacement for your factory partEngineered to meet exact OEM standards$9.54 - $37.70
- SKF®Drive Belt Idler PulleyDrive Belt Idler Pulley by SKF®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine crank slowly and are your lights dim? You may need accessory drive belt repairs, but...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$26.31 - $63.53
- SKF®Drive Belt Tensioner AssemblyDrive Belt Tensioner Assembly by SKF®. Do you hear chirping or squealing noise? Has the "power" disappeared from your steering? Does your engine crank slowly and are your lights dim? You may need accessory drive belt repairs,...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$25.82 - $196.84
- Corteco®Crankshaft PulleyCrankshaft Pulley by Corteco®. A torsional vibration damper decouples the belt drive from the crankshaft.It minimizes the transmission of vibration and therefore the stress on all adjoining components. The lifecycle duration of belt and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$57.91 - $766.00
- GMB®Drive Belt Idler PulleyDrive Belt Idler Pulley by GMB®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$8.49 - $21.39
- GMB®Drive Belt Tensioner PulleyDrive Belt Tensioner Pulley by GMB®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$11.28 - $20.95
- MTC®Crankshaft PulleyCrankshaft Pulley by MTC®. If you’re looking for replacement parts at reasonable prices, then MTC parts are the way to go. Manufactured by highly qualified experts who follow stringent quality standards, these parts perform and...Ideal solution to restore the performance of your vehicleManufactured using high-strength materials for maximum reliability$66.18 - $253.43
- MTC®Crankshaft Pulley BoltCrankshaft Pulley Bolt by MTC®. If you’re looking for replacement parts at reasonable prices, then MTC parts are the way to go. Manufactured by highly qualified experts who follow stringent quality standards, these parts perform...Ideal solution to restore the performance of your vehicleManufactured using high-strength materials for maximum reliability$3.43 - $4.13
- Meyle®Drive Belt TensionerDrive Belt Tensioner by Meyle®. Meyle engineers maintain close contact with their own production facilities and partners to ensure targeted management of specifications, requirements and processes as well as the highest quality...Designed for a long service lifeTop-quality car parts which are technically superior to the OE part$59.64
- Meyle®Drive Belt Tensioner PulleyDrive Belt Tensioner Pulley by Meyle®. Meyle engineers maintain close contact with their own production facilities and partners to ensure targeted management of specifications, requirements and processes as well as the highest quality...Designed for a long service lifeTop-quality car parts which are technically superior to the OE part$10.76 - $17.58
- NOK®Crankshaft PulleyCrankshaft Pulley by NOK®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$92.16 - $202.75
- PPE®Oil Pump Drive KitOil Pump Drive Kit by PPE®. PPE is where engineering, design, and quality come together in perfect form. This superior product was crafted using modern manufacturing methods and high-grade materials to strict standards to make your...Great way to improve the performance of your truckSynonymous with quality, efficiency, and dependability$539.99
- Ackoja®Crankshaft Belt PulleyCrankshaft Belt Pulley by Ackoja®. ACKOJA products stand for high-quality materials and certified manufacturing processes. They also undergo strict quality controls to meet the requirements of the OEM manufacturers. They are thereby the...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$74.23 - $110.39
- Ackoja®V-Ribbed Belt Deflection/Guide PulleyV-Ribbed Belt Deflection/Guide Pulley by Ackoja®. ACKOJA products stand for high-quality materials and certified manufacturing processes. They also undergo strict quality controls to meet the requirements of the OEM manufacturers. They...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$30.97
- Ackoja®V-Ribbed Belt TensionerV-Ribbed Belt Tensioner by Ackoja®. ACKOJA products stand for high-quality materials and certified manufacturing processes. They also undergo strict quality controls to meet the requirements of the OEM manufacturers. They are thereby...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$218.86
- Ackoja®V-Ribbed Belt Tensioner PulleyV-Ribbed Belt Tensioner Pulley by Ackoja®. ACKOJA products stand for high-quality materials and certified manufacturing processes. They also undergo strict quality controls to meet the requirements of the OEM manufacturers. They are...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$21.25 - $148.42
- Dorman HD Solutions®Drive Belt Idler PulleyDrive Belt Idler Pulley by Dorman HD Solutions®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and models, properly...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$13.28 - $21.30
- Goodmark®Engine Crankshaft PulleyEngine Crankshaft Pulley by Goodmark®. Some other restoration sheet metal companies may carry popular panels like hoods, fenders and quarter panels, but far too often they come up empty when you need supporting parts like braces,...Faithful reproduction of the original partHighest quality sheet metal parts available$77.64 - $119.63
- Mando®Crankshaft PulleyCrankshaft Pulley by Mando®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...Made with precision and quality in mindDesigned to meet your specific needs$37.60 - $108.58
- Metrix®Drive Belt TensionerDrive Belt Tensioner by Metrix®. Do you hear chirping or squealing noise? Has the “power” disappeared from your steering? Does your engine crank slowly and are your lights dim? You may need accessory drive belt repairs, but...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$41.60 - $57.35
- Racing Power Company®Crankshaft PulleyCrankshaft Pulley by Racing Power Company®. Crafted with expertise and care, this product sports the elaborate design and features unsurpassed quality. It is made using smart materials and leading technological advancements to provide...Elaborately engineered using leading technologySports the refined design and ensures high quality$53.66
In a typical serpentine belt accessory drive system there is a drive pulley that is part of or attached to the crankshaft mounted harmonic balancer, a pulley at each of the belt-driven accessories, a belt tensioner and one or more idler pulleys. The rubber ring between the hub and inertia ring on the harmonic balancer can fail and these components are discussed more in depth on our harmonic balancers product page.
The pulleys that directly affect belt adjustment and noise are the tensioner and idler pulleys. A worn tensioner will cause the belt to slip and reduce accessory efficiency. For example, alternator charging output may be reduced which may wear the battery down. Your vehicle may not start and the CHECK ENGINE light may illuminate. Slippage will also wear the belt and cause a squealing noise, as well as generate heat that will reduce the life of accessory pulley bearings. Many tensioners also include a dampening mechanism to control vibration. A worn damper will allow belt slap, which can also cause pulley bearings to fail.
Pulley misalignment can cause belt chirp. Worn tensioner and idler pulleys can cause misalignment, which can also create excessive heat that wears the belt and the pulley bearings. You can replace the automatic tensioner and idler pulley(s) along with the serpentine belt - our accessory drive belt kits provide everything needed. During deceleration, the spinning alternator creates drag, creating strain on the serpentine belt and tensioner. Many manufacturers use alternator decoupler pulleys, which allow the alternator to freewheel during deceleration, eliminating strain and increasing belt and tensioner lifespan.
There are One-Way Clutch (OWC) and Overrunning Alternator Decoupler (OAD) pulleys. Both function similarly, but the OAD also contains a mechanism to reduce vibration. Many OE dealers do not service these pulleys separately from the alternator, but we have them, along with the installation tools, so you can save money. If you want to reduce your accessories’ power consumption without negatively affecting function, you can reduce the weight of your pulleys and by changing their diameter. We offer aluminum pulleys that are much lighter than the original equipment pulleys, without any reduction in strength. Their light weight not only results in a horsepower increase, but the reduced rotational mass also improves throttle response.
The accessories on modern vehicles are generally driven by a single serpentine belt, but older performance vehicles used multiple V-belts, and even if tensioned properly, centrifugal force would often cause these belts to jump during high RPM shifts. Then as now, the answer to this problem is a deep groove pulley, but you don’t have to spend a lot of time and money searching for an original part that may have been discontinued long ago. We can supply you with pulleys that feature deep, precision machined grooves for secure belt retention even at extreme RPM changes, and some are underdriven so you gain horsepower as well.
Browse by Part Name
Featured Brands
Related Categories
- Engine Assemblies
- Motor Mounts
- Engine Blocks
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Valve Covers
- Timing Gears, Chains & Covers
- Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Timing Belts
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Drive Belt Tensioners
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Oil Catch Cans
- Balance Shafts
- Engine Swap Kits
- Engine Wiring Harnesses
- Intercoolers
- Throttle Bodies
- Carburetors
- Motor Oils