Heavy duty fuel injection parts work together to maintain consistent pressure when fuel is inserted into the combustion chamber. As the most critical component of your fuel system, diesel truck fuel injectors deliver an exact amount of fuel into each cylinder to be evenly distributed, providing you with increased power, better gas mileage and a smooth ride. Faulty fuel injection parts can lead to poor fuel efficiency or power failure.FleetPride knows you need high-quality semi truck fuel injection parts to keep your truck Ready for the Road Ahead™. We carry a diverse assortment of parts, such as diesel truck fuel injectors, injector seals, diesel fuel injection pumps, injector O-rings, fuel injector return lines, carburetor fuel lines, fuel control modules, fuel injector seal O-ring kits, fuel injector insulator sleeves, and throttle body motors. Browse our large inventory and find the right part for your heavy duty needs.