original Diesel Common Rail Fuel Injector for 3126B 3126E C7 Engine 10R-1262, Cross Reference 10R-0781, Replacement for 183-6797, 10R-1306, for Truck Engine original new injector

Engineered for 3126, 3126B, and 3126E diesel engines, this remanufactured HEUI fuel injector (OE 10R-1262 / 10R1262) delivers the precise, hydraulically actuated fuel metering that these engines depend on for consistent power output and clean combustion. As a Hydraulic Electronic Unit Injector, it combines electronic control with high-pressure hydraulic actuation to achieve accurate injection timing and fine fuel atomization. Covering 1995–2004 3126B and 3126E HEUI appliions, it serves as a direct OE replacement for straightforward installation.

This injector cross-references an extensive range of part numbers — 222-5963, 2225963, 203-3771, 2033771, 204-6714, 2046714, and EX631262, along with CA-series numbers CA10R1262, CA2225963, CA2033771, and CA2046714 — allowing a single unit to replace multiple OE and aftermarket references. For distributors, fleet maintenance teams, and engine rebuilders, this broad interchangeability simplifies sourcing, reduces SKU count, and minimizes ordering errors when servicing 3126-series engines.

Supplied in remanufactured condition, the injector offers a cost-efficient alternative to new units while maintaining the fit and function required for heavy-duty industrial diesel service. The hydraulic actuated design is well suited to the demanding duty cycles of 3126-powered equipment, where durability and dependable fuel delivery are critical. For B2B buyers, the combination of cross-reference coverage, reman value, and compatibility across the 3126 HEUI family makes this injector a practical choice for parts programs, repair shops, and engine overhaul projects.