original 128-6601 Common Rail Diesel Fuel Injector for 3126B 3126E C7 Engine 120H 135H Motor Grader 953C 963C Loader 322C Excavator Nozzle 1286601 10R-0782 original new injector

Engineered for demanding industrial diesel applications, this HEUI (Hydraulic Electronic Unit Injector) assembly under primary OE reference 128-6601 delivers precision fuel atomization and reliable metering for 3126, 3126B, 3126E, and C7 diesel engines. The injector is available in Original, Aftermarket, and Reman/Rebuilt Replacement grades, with each remanufactured unit fully tested and calibrated to restore factory-level injection performance across the full operating range.

This unit cross-references multiple authorized service numbers including 128-6601, 178-0199, 198-6605, BN1830691C1, CA1286601, 259-3597, 10R-0782, 10R-4761, 177-4754, 178-6342, and 222-5966, providing broad compatibility for fleet maintenance and MRO procurement. Typical equipment applications include 322C, 325C, 325C L, and M325C hydraulic excavators, as well as 950G II and 962G II wheel loaders, along with on-highway trucks and stationary industrial diesel power units driven by the HEUI fuel system.

To ensure correct fitment, buyers should verify the original injector number, engine serial number, engine arrangement number, machine model, and injector calibration code prior to order confirmation. Reman part numbering may vary according to engine configuration and injector calibration, so cross-referencing is strongly recommended. Backed by consistent quality control and standardized HEUI test protocols, this injector offers a cost-effective replacement solution for OEMs, distributors, workshops, and industrial end-users seeking dependable diesel injection performance.