Caterpillar original  20R-8061 Diesel Engine Fuel Injector Assembly C9 Excavator Truck Auto Parts Replacement for 387-9432 20R-8065 20R-8060 new original new injector

The Caterpillar C9 fuel injector 20R-8061 is an OEM-manufactured common rail diesel injector engineered for precision fuel delivery across a wide range of Caterpillar C9, C9 ACERT, and C9.3 engine platforms. Built to original equipment manufacturing standards, this injector features a precision-ground nozzle, hardened steel body, and wear-resistant internal components designed to withstand high-pressure common rail operation and the harsh conditions of industrial duty cycles. The electronically controlled unit enables accurate fuel metering, improved fuel economy, stable idle performance, and reduced exhaust emissions, including visible reductions in black smoke during cold start conditions.

This fuel injector carries cross reference compatibility with part numbers 287-8061, 10R-8020, 147-2412, and 268-8061, allowing direct interchangeability for service and replacement applications. It is compatible with excavators such as the 330C, 336D, 345D, and 349D, articulated trucks including the CT660 and CT680, mining machinery models 950H, 966H, 972H, and 980H, as well as marine propulsion engines, generator sets, oil and gas equipment, and heavy-duty industrial machinery. The heat-treated, corrosion-resistant construction delivers long service life under extreme temperature exposure and heavy load operation.

Proper installation requires cleaning the injector bore, replacing sealing washers and O-rings, inspecting the fuel lines and injector harness, and performing a leak test to confirm injection timing and rail pressure integrity. Operators are advised to use clean diesel fuel with OEM quality filtration, drain water separators on a regular schedule, and monitor engine diagnostics to identify issues such as abnormal smoke color, fuel rail pressure errors, or engine derate conditions. The 20R-8061 injector assembly is a dependable solution for maintaining OEM engine performance, fuel efficiency, and emissions compliance in demanding Caterpillar C9-powered equipment worldwide.