original 6i-4357 7W-2269 7C-9576 0R-1759 7W-2269 for C3500 Engine 3512 3516 3508 Gen Set Engine original new injector

Engineered to deliver OEM-level performance in the most demanding power generation and marine propulsion environments, the 6I-4357 diesel fuel injector is a precision-built replacement designed for the 3500 Series platform, with primary fitment on 3512A and 3512B engines. This injector assembly directly cross references OE numbers 0R-1759, 7W-2269, 7C-9576, 0R-2781, 712943AT and OR2781, ensuring drop-in compatibility, reliable starting, and stable combustion across continuous prime, standby, and heavy-duty industrial duty cycles.

Built for harsh operating conditions found in offshore modules, oilfield power systems, mining sites, and data center backup generators, the 6I-4357 injector delivers improved power output, reduced fuel consumption, lower smoke emissions, and better cold starting behavior. Precision-machined nozzles and calibrated spray patterns support longer engine life, reduced maintenance cost, and improved ROI. Each unit is offered Brand New or Remanufactured, backed by a 12-month warranty, neutral or customized packaging, and global shipping to North America, South America, Europe, the Middle East, Africa, and Asia-Pacific markets.

Recommended installation includes disconnecting the fuel system, cleaning the injector seat, fitting new seals, applying OEM torque values, and priming before startup. Support diagnostics via injector bench test, cylinder balance test, leak-off test, fuel pressure test, compression test, and ECU analysis to maximize service life.