original 222-5968 Diesel Fuel Injector for 3126B 3126E 3126 HEUI Excavator Engine Parts Replacement OEM 198-6605 10R-1306 222-5972 Truck Injector Pump Assy original new injector

Engineered for demanding diesel operations, this industrial HEUI fuel injector carries primary OE number 222-5968 and is designed as a direct replacement for 3126, 3126B, and C7 diesel engines. Verified cross numbers include CA2225968, 10R-1306, CA10R1306, 173-3922, CA1733922, 183-6797, and CA1836797, providing broad engine database compatibility for global sourcing teams, reman programs, and workshop inventories. Compatibility should always be confirmed by engine serial number, old injector number, equipment model, and fuel system configuration.

Built with heavy-duty construction and a replacement-ready design, the injector delivers precision fuel delivery and fine atomization to support stable combustion, balanced cylinder performance, and reliable cold and hot starting. It is well suited for medium-duty trucks, buses, commercial fleets, construction machinery, generator sets, industrial engines, agricultural machinery, and diesel repair workshops. With industrial packaging options and quality test support, the unit meets the needs of North America, Latin America, Europe, the Middle East, Africa, Southeast Asia, Australia, and global e-commerce platforms.

Typical replacement indicators include hard starting, rough idle, black or white smoke, power loss, high fuel consumption, misfire, fuel knock, fuel in oil, elevated exhaust temperatures, and diagnostic trouble codes. Recommended service actions cover injector testing, return-flow measurement, fuel pressure testing, cylinder cut-out testing, nozzle inspection, seal replacement, wiring checks, and ECM scanning. Full-set replacement is recommended when uniform engine balance is required.