Perkins original Perkins 7C-4174 Fuel Injector Assembly For 3500A 3508 3512 3516 Diesel Engine  original new injector

Engineered as a direct OEM replacement for the Perkins 3512A series, the 7C-4174 fuel injector delivers precision fuel metering, optimal atomization, and peak combustion efficiency across demanding operating environments. The unit is manufactured from high-strength alloy steel to withstand the elevated injection pressures typical of the 3512 and 3512A platforms, and each injector is 100% flow and spray tested to confirm consistent nozzle performance before shipment. Full cross compatibility is provided across 7C-4174, 7C4174, 9Y-3773, 9Y3773, 0R-2923, OR-2923, 961-4357, 111-3718, 224-9090, 4P-9075, 4P-9076, and 4P-9077, simplifying inventory management for distributors and fleet operators maintaining mixed engine populations.

The injector is purpose-built for utility and standby generator sets, commercial and offshore marine propulsion, heavy-duty mining power modules, drilling and compression units in oil and gas, large industrial stationary engines, and mobile construction power packs. Available in both new and remanufactured configurations, it is offered with a 12-month standard warranty and packaged for industrial export or customized shipping. Operators are advised to use ultra-low sulfur diesel, maintain clean fuel filtration, and follow official Perkins torque settings during installation.

Routine maintenance should include regular filter replacement, water contamination prevention, exhaust smoke monitoring, and periodic injector performance testing to detect dribble, restricted spray patterns, or uneven injection before they progress into hard starting, power loss, misfire, or excessive fuel consumption. During service, cylinder head bores and high-pressure fuel line connections must be cleaned, sealing surfaces inspected, and washers or gaskets renewed as required, followed by fuel system bleeding and calibration code verification to ensure leak-free, factory-spec injection performance.