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.With over 110 years of experience, Dayco is an OEM leader in high-quality belts, hoses, and engine accessories. Dayco products are made for efficiency and reliability with customers in mind. Their heavy duty truck and trailer experience allows them to improve the transfer of power quietly and efficiently.Dayco strives to improve how the world around us moves. As a result, customers benefit from the innovation behind the products and systems. They have a reputation for solutions that boost performance and durability.Headquartered in Troy, MI, Dayco’s mission is to “deliver innovative system solutions that move original equipment and aftermarket customers forward, always." Dayco has grown to more than 40 locations across 21 countries with over 4,000 employees.