ENGINE BELTS

O’Reilly Auto Parts stocks belts for cars, trucks, SUVs and more. Find A Store Near You



What Type of Belt Do I Need?

Belts are routed through a series of pulleys and are powered by the crankshaft. A loose belt or failing tensioner can cause parts of the vehicle’s accessory drive to malfunction, and can cause damage to these components. Maintaining healthy drive belts contributes to better mechanical performance and can add to the longevity of the engine and accessories. Loud squealing sounds, engine overheating, or weak battery charging are signs of a failing drive belt. To ensure a long life for drive belts on your vehicle regular maintenance and timely repairs are suggested for most vehicle belts and tensioners. Regularly checking the condition of the belts, and observing the manufacturer’s suggested replacement intervals, can also help ensure a broken belt doesn’t leave you stranded.
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Serpentine Belts Serpentine Belts

V-Type Belts V-Belts

Timing Belts Timing Belts

Power Sports Power Sports Belts

Agriculture & Equipment Belts Heavy-Duty Belts, Agricultural, and Industrial Belts

Lawn & Garden Belts Lawn Mower Belts

Auto Belt Brands

O’Reilly Auto Parts carries automotive belts for a variety of applications, whether you’re repairing cars, trucks, heavy-duty vehicles, power sports, agriculture, or lawn care, to help you make a complete repair. MasterPro belts are made to fit nearly every vehicle on the road today, and are offered in a variety of sizes and styles. For belts used in heavy-duty machinery, agriculture, racing, and recreational uses, Gates carries belts dedicated to light- and heavy-duty applications. Made to meet or exceed OEM standards, O’Reilly Auto Parts’ selection of automotive, power sport, and lawn maintenance belts are designed to exceed performance expectations.
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Master Pro Master Pro Belts

Gates Gates Belts

Belt Tools & Accessories

When inspecting or repairing the belts on your vehicle, machinery, or tools, it may be a good opportunity to make other adjustments. Consider checking the condition of your tensioner pulleys and idler pulleys, as well as the belt tensioner itself. If you need a timing belt, check out our timing belt kits, as well as options that include the water pump for a complete repair. We also carry belt installation tools and tensioner tools to help simplify your repairs.
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Tension Pulley Tension Pulley

Pulley Pulley

Timing Belt Kit Timing Belt Kits

Belt Tensioner Assembly Belt Tensioner Assemblies

Serpentine belts supply power to engine devices like the alternator, A/C compressor, and power steering pump. Most vehicles only use a single serpentine belt to drive all of the engine’s accessories. Serpentine belts get their name from the continuous, snaking design of the winding belt, which needs to be inspected regularly to ascertain the condition of the rubber. If you see a heavily cracked belt or notice shallow grooves on the pulley contact surface, you may have a failing serpentine belt that will need to be replaced. It is recommended that you inspect your vehicle’s serpentine belts around 60,000 miles, and have them replaced by 90,000 miles, or according to manufacturer’s specifications. A broken serpentine belt can cause engine overheating, and may render your vehicle undriveable. Your serpentine belt may slip off of the idler pulley, which points to an issue with the belt tensioner. Worn out belts and tensioners can usually be repaired easily, and help to avoid a larger, more costly issue in the future. The timing belt syncs the motion of the crankshaft and camshaft or camshafts inside the engine. Made of rubber, timing belts are susceptible to cracking or failing due to use over time and constant exposure to heat. Symptoms of a failing timing belt include delayed engine cranking, misfiring, ticking sounds coming from the engine, and oil leaking from the timing belt cover, which can cause overheating. Although some vehicles have a chain instead of a belt for longevity, vehicles equipped with a timing belt should be serviced every 60,000 to 90,000 miles to avoid breakage. Timeliness is crucial in replacing a timing belt, as they may break upon startup, while you are driving, or under high amounts of stress, which can cause damage to your engine. When you replace the timing belt, it is often recommended that you replace the water pump at the same time because of their close proximity, in addition to inspecting the idler pulleys and tensioner for damage and tension.