Caterpillar original Common Rail Diesel Fuel Injector 20R-1265 392-0208, Replacement for OEM Parts, Cross Reference 20R-1272, 386-1753 for Caterpillar C3500 Excavator Engine original new injector

Engineered for Caterpillar's proven 3500 and C3500B diesel engine platform, the CAT 20R-1265 Fuel Injector GP Fuel is a precision-built fuel injection component covering the CAT 3508, 3508B, 3512, 3512B, 3516, and 3516B engine families. Designed for power generation, marine propulsion, mining, construction machinery, and oil & gas operations, this original injector delivers accurate fuel metering, superior atomization, and stable combustion performance under continuous-duty operating conditions.

Manufactured from high-strength alloy steel with precision-ground internal components and an industrial-grade nozzle assembly, the 20R-1265 is engineered to withstand extreme operating temperatures and high injection pressures. During each cycle, fuel enters through the high-pressure gallery, builds pressure inside the injector body, and lifts the calibrated needle to release finely atomized diesel through precision nozzle holes—supporting optimized combustion efficiency, lower fuel consumption, and reduced exhaust emissions. Its corrosion-resistant construction also makes the injector suitable for marine and offshore environments.

For purchasing managers, diesel engine rebuilders, CAT service centers, and global spare parts distributors, the 20R-1265 offers extensive interchangeability. It cross-references OEM and replacement numbers including 392-0201, 386-1753, 250-1301, 229-0198, 164-7905, 10R-3256, 10R-9617, and 10R-1280, along with related injector family numbers such as 20R-1264, 20R-1270, 20R-1272, and 20R-1280. This broad compatibility simplifies sourcing, inventory control, and overhaul planning across equipment fleets worldwide. Contact our team for stock availability, bulk pricing, and technical support.