Heavy duty engine parts and accessories work together to translate fuel into energy, so your truck has the power to take on the road ahead. You should use high-quality engine parts and accessories on your heavy duty truck to avoid loss of power and downtime.FleetPride only carries the best semi engine parts and accessories in the industry. We have a large inventory that includes engine timing belts, timing belt tensioner pulleys, timing belt kits, cylinder heads, reman heads, commercial oil pumps, engine mounts, engine expansion plugs, timing belt kits, exhaust valves, in-frame kits, gaskets, full reman engines, and more. Browse our diverse inventory of parts to find the right one for you.Gates is a leading manufacturer of power transmission solutions for heavy duty trucks and trailers. Products include belts, tensioners, engine hoses, water pumps, and system components. Gates works to produce high-quality OE and OE equivalent parts while keeping your costs and downtime down.Gates uses their expertise to solve current problems. In addition, the company invests in research and innovative technology to anticipate and solve issues. Gates exceeds expectations by investing in people and customer relationships.Charles C. Gates founded the company in 1911 in Denver, Colorado. Denver is where Gates headquarters remain today.