Perkins original Perkins 169-7408 4CR01974 222-5967 Diesel Engine Injector for 3408 3412 Construction Machinery Spare Parts  original new injector

The Perkins 169-7408 fuel injector is engineered as a direct OE replacement for the Perkins 3412 engine family, covering the 3412, 3412B, 3412C, and 3412E series. Built to match original equipment specifications, this injector carries the authorized OE number 169-7408 and is fully interchangeable with the cross reference CAT1697408. Each unit is manufactured from high strength alloy steel and subjected to 100% flow testing to ensure consistent delivery, stable atomization, and reliable cold-start performance across demanding industrial environments.

Precision nozzle technology and flow matched calibration allow the 169-7408 injector to maintain accurate injection pressure throughout its service life, supporting clean combustion and stable engine output. Its corrosion resistant construction and OEM dimensional compatibility make it suitable for installation on Perkins 3412 powered generator sets, marine propulsion systems, mining trucks, oilfield rigs, industrial compressors, and construction equipment. The component delivers high-pressure fuel control required by heavy duty diesel platforms operating under continuous load conditions.

Proper installation should follow Perkins service procedures, including replacement of all sealing components, inspection of fuel supply lines, and a complete fuel system bleed before initial start-up. Operators are advised to verify injector balance and calibration during commissioning. Routine maintenance involves daily checks for fuel leakage, exhaust smoke color, and engine starting behavior, with injector condition and fuel filter status inspected every 500 hours. Bench testing, spray pattern verification, and opening pressure measurement should be performed every 2,000 hours to sustain long term operational reliability.