Caterpillar original 0R-8338 Fuel Diesel Injector Pump for Caterpillar 3508 Replacement for OEM Parts, compatible with Excavator Truck, cross reference 224-9090 111-3718 9Y-1785 original new injector

When a Caterpillar 3500 Series engine is down for fuel system service, sourcing the correct injector quickly becomes the top priority—and the CAT 0R-8338 fuel injector (GP-Fuel) is the precision component built for exactly that job. Manufactured to OEM standard and available in both OEM and remanufactured condition options, it gives fleet operators and overhaul shops flexible sourcing choices. The injector cross-references directly with 111-3718 plus universal numbers 0R8338, OR-8338, OR8338, 1113718, CA0R8338, CA1113718, and AM-0R8338, simplifying part identification across procurement and service documentation.

Compatibility spans the Caterpillar 3500 engine family, including the 3508, 3512, 3512A, 3512B, and 3516, so one part number can serve mixed fleets across multiple platforms. These engines power generator sets, marine propulsion and auxiliary systems, mining equipment, and oilfield power stations, alongside industrial and backup power installations. In each of these demanding environments, precise fuel atomization and consistent delivery are critical to engine output and dependable operation—making injector condition a key maintenance priority for any 3500 Series service program.

For distributors, engine rebuilders, and maintenance contractors, this injector combines OEM-standard performance with complete cross-number traceability, supporting accurate ordering and reduced downtime. Matching the fit and function of the original Caterpillar unit, it installs directly in 3500 Series fuel systems and integrates into scheduled overhauls or targeted replacement programs. Contact our team for quotations, volume pricing, and current availability on the 0R-8338 / 111-3718 injector and related CAT 3500 Series fuel system components.