Perkins original  10R-1265 Diesel Fuel Injector Pump for 3408E 3412E 3142E Engine D9R Dozer AD45 Quarry Truck Replacement for OEM original new injector

The Perkins 3412 Injector 10R-1265 is engineered as a direct OE replacement for the Perkins 3412 diesel engine platform, delivering consistent fuel delivery across demanding industrial operating conditions. Designed to operate within a pressure range of 1200–1600 bar, this mechanical unit injector utilizes a multi-hole atomizing nozzle to produce finely controlled fuel spray patterns that promote complete combustion, stable idle quality, and reduced exhaust emissions in heavy equipment applications.

Manufactured from high-strength materials selected for resistance to elevated temperatures, high injection pressures, and prolonged thermal cycling, the 10R-1265 injector provides the durability required for continuous operation in generators, marine engines, excavators, and other industrial machinery. Each unit is precision-machined to original equipment tolerances, ensuring accurate flow rates, correct spray geometry, and reliable performance that meets the stringent demands of Perkins 3412 series engines used in construction, mining, power generation, and oil and gas sectors.

The injector supports standard maintenance protocols and performance diagnostics, including spray pattern inspection at recommended service intervals and fuel system pressure verification. For proper installation, the engine must be off and cooled, and the injector should be fitted using new seals, correct torque settings per the Perkins 3412 manual, and a fully bled fuel system to restore optimal injection performance.