Caterpillar original 10R-1290 Diesel Fuel Injector Common Rail Injector for 3512B 3516B 3508B Engine Replacement for OEM original new injector

The Caterpillar 10R-1290 fuel injector is a high-performance OEM and remanufactured injection component specifically engineered for Caterpillar 3500 Series diesel engines, including the CAT 3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516, and PP3516 models. The CAT 3512B engine, a turbocharged V12 diesel platform with approximately 51.8 liters of displacement, demands a fuel injector that meets Caterpillar's original fuel system specifications, and the 10R-1290 is manufactured and calibrated to satisfy those stringent requirements.

This injector is cross-referenced with part numbers 250-1314, 20R-1275, 0R-8892, 0R-8690, 386-1766, 392-0214, 150-4456, 229-0193, 114-6469, 126-7995, 170-5187, 212-3465, and 239-4907, providing broad interchangeability across multiple Caterpillar equipment configurations. Its primary functions include delivering precise fuel metering, producing optimized fuel atomization, and supporting superior combustion efficiency, which together reduce fuel consumption and extend overall engine service life. Precision-machined alloy steel internal components ensure durability under continuous heavy-load operation.

Optimized spray patterns generated by the 10R-1290 minimize black smoke, carbon deposits, fuel waste, and particulate emissions, making it a reliable choice for industrial, marine, generator, mining, oilfield, and power generation applications. Whether deployed in CAT 3512B Industrial Engines, CAT Marine Propulsion Systems, CAT Generator Sets, or CAT Mining Equipment, this injector delivers consistent performance, long-term reliability, and compliance with Caterpillar fuel system standards in the most demanding operating environments.