original 359-5469 Diesel Fuel Injectors for 3512 3516 Construction Machinery 392-0217 392-0219 Replacement new injector original new original new injector

Engineered exclusively for the 3512B platform, the 359-5469 fuel injector delivers OEM-grade combustion precision across industrial generator sets, marine propulsion systems, oil and gas pumping units, and heavy construction machinery. Each unit is manufactured from high-grade alloy steel and processed with anti-corrosion surface treatment, ensuring long service life under sustained high-pressure operation between 2000–2500 bar and extreme thermal conditions typical of the 3512B duty cycle.

The multi-hole precision nozzle and precision-machined plunger work in concert to produce finely atomized fuel spray, optimizing combustion efficiency and supporting stable power output across rated loads ranging from 1250–1500 kW. A multi-layer sealing architecture prevents leak-back under continuous high-pressure injection, while the direct engine mount configuration preserves original equipment geometry and injector gap settings as defined in the 3512B service manual. This injector accepts 10R-7148, 126-4567, 9X-1234, 359-5469A, and 10R-7148A cross references, making it a versatile service replacement for global engine maintenance operations.

Installation requires torque calibration to 70–75 Nm using a 12 mm high-pressure steel fuel line connection, and individual replacement mandates recalibration per factory service specifications. Routine maintenance should include spray pattern inspection every 500 hours, nozzle cleaning with approved solvent, and seal replacement at each servicing interval to maintain rated injection performance and protect the 3512B power assembly.