Engine Pulleys
- Vaico®V-Ribbed Belt Guide PulleyV-Ribbed Belt Guide Pulley by Vaico®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$19.93 - $70.77
- 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$58.29 - $766.00
- Crown®Crankshaft PulleyCrankshaft Pulley by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$41.60 - $42.06
- Crown®Drive Belt Idler PulleyDrive Belt Idler Pulley by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$22.42 - $70.80
- Crown®Drive Belt TensionerDrive Belt Tensioner by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!Developed to improve your driving experienceConstructed to ensure ultimate operation$25.74 - $137.32
- Rein®Crankshaft PulleyCrankshaft Pulley by Rein®. 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$143.87 - $204.29
- Rein®Crankshaft Pulley BoltCrankshaft Pulley Bolt by Rein®. When looking for replacement engine parts, you can count on Rein Automotive products for unmatched quality at a reasonable price. Using the most advanced manufacturing equipment and select materials,...OE fit, form, and functionDesigned to fit the first time, without modifications$3.40 - $10.47
- ACP®Crankshaft PulleyCrankshaft Pulley by ACP®. Looking for reliable parts for your vehicle? Then ACP products are for you. They are made to meet or exceed OEM standards while maintaining the original factory look. ACP works with the latest in advanced...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$77.22 - $106.40
- 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
- INA®Deflection PulleyDeflection 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 in the...Made from sturdy materialsGreat design and function$23.03 - $46.13
- 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 Idler PulleyDrive Belt Idler 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 in...Made from sturdy materialsGreat design and function$6.14 - $114.03
- 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
- 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$97.92 - $202.75
- 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
- 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$75.89 - $112.84
- 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$32.82
- 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$197.95
- 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 - $146.37
- 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$13.55 - $21.31
- 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
- Hutchinson®Drive Belt TensionerDrive Belt Tensioner by Hutchinson®. This first-rate product by Hutchinson was developed using innovative technical solutions and fabricated from reliable materials to ensure outstanding durability and hassle-free service. It has...Designed for maximum reliability and safety in mindGuaranteed to provide the utmost quality assurance$159.68 - $188.75
- 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$71.34 - $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
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.
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- Engine Assemblies
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