original Diesel Fuel Injector Cross Reference 171-9704 10R-9238, Primary Part 20R-5392, Replacement for 232-1175, Compatible with 3412, 3142E, 3412E Diesel Engines original new injector

The 20R-5392 fuel injector assembly is an OEM-equivalent mechanical diesel injection component for selected 3412, 3412B and 3412C engines, including industrial, marine, generator and power-module configurations. It serves generator sets, marine propulsion and auxiliary systems, mining and construction equipment, oil and gas power units, industrial pumps, power plants and offshore platforms. Cross references include 20R5392, 0R-3638, 0R3638, 0R-3417, 0R3417, 127-8222 and 1278222.

Engineered to OEM-level specifications, the injector meters fuel under high pressure, using a calibrated needle valve and precision nozzle holes to deliver atomized diesel into the combustion chamber. This supports efficient combustion, lower fuel consumption, stable power output, reduced exhaust emissions and consistent engine performance. Hardened steel alloys and precision-machined components provide wear resistance, while thermal stability and special surface treatments help withstand high temperatures, fuel contamination and environmental corrosion during continuous heavy-load operation.

Available new or remanufactured, the injector is 100% bench tested and supplied to an ISO 9001 quality standard, with industrial export packaging and a 12-month warranty. Installation requires a clean environment, seating-area inspection, replacement of damaged seals, clean fuel lines, OEM torque compliance, and leak and engine-operation checks. Routine service includes fuel-filter replacement, fuel-quality inspection, tank cleaning and injection-timing verification. Monitoring leaks, exhaust smoke and idle quality, supported by bench testing and nozzle-wear, fuel-pressure and combustion inspections, helps maintain dependable operation.