Perkins original  7C-4184 Common Rail Fuel Injector Assembly For 3508 3512 3516 3500A Diesel Engine Excavator 777B 785 789 Parts original new injector

The Perkins 7C-4184 fuel injector is engineered as a direct OEM replacement for the Perkins 3512A engine platform, delivering consistent and metered fuel delivery across demanding industrial duty cycles. Designed for use within the Perkins 3500 Series engine family, this injector assembly is suitable for Perkins 3508, 3508B, 3512, 3512A, 3512B, 3516, and 3516B engines deployed in marine propulsion, generator set, and heavy industrial installations.

Manufactured to original factory tolerances, the 7C-4184 features a precision-machined injector nozzle that promotes accurate spray pattern and optimized combustion efficiency. The robust construction provides high-temperature resistance, corrosion protection, and enhanced durability, allowing long service intervals even under continuous high-load operation. Operators benefit from improved engine power output, reduced fuel consumption, lower exhaust emissions, better cold-start response, and stable engine running characteristics across varied ambient and load conditions.

Reliable cross-reference coverage includes part numbers 0R-0906, 0R-2925, 4P-9077, 4P-9075, 4P-9076, 7E-6408, 9Y-3773, 6I-3075, and 10R3053, simplifying replacement sourcing for fleet maintenance and overhaul operations. Correct installation requires cleaning the injector seat, replacing sealing components, applying Perkins-specified torque values, and bleeding the fuel system prior to startup. Always verify the engine serial number before ordering to ensure proper application fitment.