original 137-2500 Diesel Fuel Injector for C12 C10 Engine 365B L Excavator Rail Fuel Injector Nozzle Assembly 1372500 212-3463 10R-0963 OEM Parts original new injector

Engineered for demanding industrial diesel service, this heavy-duty electronic unit injector carries primary OE number 137-2500 and is offered as a direct replacement for C10 series engines, with cross-reference coverage extending to C12, 3176, and 3196 applications. The unit is supplied in new aftermarket, remanufactured, rebuilt, and exchange conditions, available as single units or as a complete set of 6 for full engine set replacement. Cross numbers include 1372500, 10R-0963, 0R-8773, OR8773, 10R-9235, EX630963, 147-0373, 160-1090, 160-2303, 162-2303, 194-5083, and 212-3463.

Built for precision fuel metering and improved atomization, the injector delivers stable combustion, reliable cold starting, and consistent cylinder contribution under continuous heavy load. It fits heavy-duty trucks, vocational vehicles, construction machines, mining fleets, generator sets, pump and compressor drive engines, oilfield rigs, and off-road industrial diesel systems. Broad cross-reference coverage supports B2B catalog search visibility across North America, Latin America, Europe, the Middle East, Africa, Asia Pacific, and Australia, making it suitable for aftermarket distributors, workshop chains, and export traders.

Recommended maintenance includes regular fuel filter replacement, water separator draining, clean diesel fuel usage, injector balance testing, ECM code scanning, and return flow inspection. Diagnostics address hard starting, rough idle, black or white smoke, low power, misfire, fuel dilution, and engine derate. Final compatibility must be verified by engine serial number, arrangement number, and ECM calibration before purchase.