Caterpillar original Caterpillar original Caterpillar 0R-8471 0R8471 Diesel Fuel Injector Assembly for 3114 3116 Engine 322B 325B 320B Construction Machinery new injector original new injector

The Caterpillar CAT 3116 fuel injector 0R-8471 is engineered as a direct replacement for the original diesel fuel injection system fitted on CAT 3116 engines. Built with industrial-grade materials and precision-machined internal components, it delivers stable fuel metering, accurate atomization, and reliable combustion across heavy-duty operating cycles. Each unit is leak-tested and flow-tested before shipment to support consistent performance in construction machinery, trucks, marine propulsion, generator sets, and stationary industrial power units.

This injector is fully interchangeable with multiple searchable cross numbers including 0R-8471, 4P-2995, 7E-8952, 0R-3389, 0R-3006, and their CA-prefixed equivalents, which simplifies procurement and cross-referencing for distributors, fleet operators, and service workshops. A direct-fit design allows installation without modification, while the robust sealing system helps prevent internal and external fuel leakage under high rail pressures typical of CAT 3116 applications.

Available as a single unit or in a 6-piece set, the 0R-8471 injector supports both individual repair and full-set replacement strategies. Routine maintenance practices—clean diesel fuel, scheduled filter changes, water separator draining, and periodic injector testing—help maximize service life. When injectors reach high operating hours, full-set replacement is recommended to maintain balanced fuel delivery, stable idle quality, and optimal engine output across excavators, loaders, trucks, generators, and marine installations.