Product Specification

original 20R-8071 Fuel Injector 241-3238 387-9426 20R-1260 268-1839 for C7 Engine new injector original new injector

The C7 Fuel Injector 2OR-8071 is engineered as a direct-fit replacement unit specifically calibrated for C7, C7 ACERT, and the full range of C7 industrial, marine, and generator engine variants. Built around the original HEUI (Hydraulic Electronic Unit Injector) architecture, this injector integrates CNC-machined components, a precision-ground needle valve, and OEM-specification nozzle geometry to maintain stable injection timing and a clean spray pattern under demanding load cycles. Hardened alloy steel construction and corrosion-resistant internal components ensure long service life in high-temperature, heavy-duty operating environments, while delivering reduced fuel consumption, lower smoke emissions, and enhanced engine response across excavator, loader, motor grader, mining truck, generator set, and marine auxiliary power applications.
As an OEM-standard replacement, the 2OR-8071 carries full cross-reference compatibility with 10R-4761, 10R-4762, 10R-4763, 20R-8057, 20R-8058, 20R-8059, 20R-8071, 236-0973, 236-0974, 236-6011, 241-3238, 241-3239, 241-3400, 243-4502, 243-4503, 263-8218, 295-1408, 295-1409, 295-1410, 328-2582, 328-2583, 328-2584, 387-9428, 387-9429, 387-9430, 2225959, 2225961, 2225962, 2333535, 2333536, 2389808, EX634761, EX634762, and EX634763, allowing seamless substitution across C7 engine families without mechanical modification. Each unit is tested under extreme load conditions to verify injection pressure, atomization quality, and flow rate consistency, ensuring reliable cold-start performance and steady power output for diesel generator sets, emergency backup power systems, drilling machines, crushing systems, and agricultural power units operating in the field.
Proper installation requires the use of new sealing washers, inspection of the injector bore, verification of fuel rail cleanliness, and strict adherence to torque specifications, with injector coding performed where required. Operators should use Ultra Low Sulfur Diesel, replace fuel filters at scheduled intervals, and prevent water contamination to sustain injector performance. Routine monitoring of engine behavior—including checks for white smoke, black smoke, excessive fuel consumption, poor acceleration, hard starting, engine vibration, or reduced power output—helps identify injector service needs early. Combined with OEM-quality replacement components, the 2OR-8071 provides a dependable, engine-adapted fuel injection solution for the C7 platform.