Buy Engine System Parts for Heavy-Duty Trucks

Engine system parts for heavy-duty diesel trucks. Browse turbochargers, fuel injectors, fuel pumps, air compressors, fan clutches, water pumps, and more for Cummins, Detroit, Paccar, Mack, and Volvo applications.

Starter Motor Oil Pumps Fuel Injectors Fuel Pumps & Rails Crankshaft Camshafts Exhaust Manifold Flywheel Housing Flexplate Gear Housing Fan Clutch Air Compressors Alternators Fan Brackets Turbochargers & Actuators Water Pumps Fuel Metering Units Belt Tensioners Fuel Lines Fuel Filter Housings Crankcase Ventilation Oil Filter Housings Thermostats & Valves Oil Pans Intake Manifolds Charge Air Coolers Cylinder Liners Idler Gears

1522 products

Engine System Parts for Heavy-Duty Trucks

Wisent Parts Center stocks genuine OEM and aftermarket engine system components for the most common heavy-duty diesel platforms — Cummins ISB 6.7, ISX15, Detroit DD13, DD15, Mack MP8, Volvo D13, and Paccar MX-11 and MX-13. Whether you need a replacement turbocharger, fuel injector, high-pressure fuel pump, air compressor, or water pump, our inventory is sourced directly from OEM suppliers and cross-referenced against factory part numbers.

Every part ships with a 180-day warranty and is verified against the application before dispatch. If you need help confirming fitment for your specific engine serial number or configuration, our parts team is available by phone and email. We specialize in hard-to-find components and can assist with cross-referencing superseded part numbers across multiple brands.