Perkins original Perkins 177-4754 Engine Injector Replacement for 3126B 3126 322C 325C Excavator Parts new injector original new injector

The Perkins 3126 fuel injector 177-4754 is a hydraulically actuated electronically controlled unit injector (HEUI) engineered for Perkins 3126, 3126B, and 3126E diesel engines. Built as an OE-style replacement, this injector carries the primary reference CA1774754 and is fully interchangeable with 10R-0782, CA10R0782, 10R-9237, 178-0198, CA1780198, 178-0199, CA1780199, 205-1285, CA2051285, EX630782, 128-6601, 173-4566, 183-0691, and 630782, allowing seamless replacement across the full Perkins 3126 series. Each unit is produced under strict quality control to ensure correct nozzle geometry, solenoid performance, and body sealing for long service life in demanding industrial environments.

This injector fits a wide range of Perkins-powered equipment, including 322C, 322C FM, 325C, 325C FM, M325C MH, IT62G II, 570B, 580B, 950G II, 962G II, and SPP101 models used in construction machines, wheel loaders, excavators, harvesters, pumpers, generator sets, and truck engine repair programs. It can be supplied individually or as a complete 6-piece set, and is available in new aftermarket, remanufactured, rebuilt, refurbished, or OEM-style replacement conditions. The cross reference coverage makes it an ideal consolidated stock-keeping unit for distributors, fleet operators, and engine rebuilders managing mixed Perkins inventories.

Proper installation requires replacing the fuel filter, draining the water separator, and flushing the fuel lines before fitting the new injector. Technicians should inspect the harness connector pins, confirm clean diesel supply, and use diagnostic tools to verify ECM fault codes, injector balance, and cylinder contribution after installation. Monitoring exhaust smoke and engine response helps confirm restored combustion quality, balanced fuel delivery, and stable idle performance for reliable operation of the Perkins 3126B and 3126E engine platform.