Perkins original 10R-1266 Common Rail Fuel Injector 3412E for Pillar 5110B Diesel Engine Truck Parts Mechanical Parts Replacementoriginal new injector

Designed to deliver consistent fuel atomization and stable injection pressure, the Perkins 3412 fuel injector 10R-1266 is manufactured from high-strength alloy steel for long-term durability in heavy industrial environments. The component supports a flow rate range of 120–150 cc/min and is rated for an operating pressure of 1200–1600 bar, making it fully compatible with Perkins 3412 V12 diesel engine variants used across global industrial equipment fleets.

This injector is suitable for excavators, generators, marine engines, bulldozers, mining equipment, heavy-duty transportation vehicles, and oil & gas machinery. It carries cross-reference numbers 10R1266A, 10R-1266A, 10R-1266B, 10R1266B, 123-4567, and 234-5678, allowing it to function as either a direct OEM replacement or an aftermarket alternative. The multi-hole nozzle configuration and advanced fuel spray pattern are engineered to maximize combustion efficiency while minimizing emissions and fuel waste, supporting both mechanical and electronic injection system setups.

Under normal operating conditions, the 10R-1266 injector provides a service life of 3000–5000 operating hours. Recommended maintenance includes inspection every 500 operating hours, ultrasonic cleaning of the nozzle, and torque application of 45–50 Nm on mounting bolts. Operators should bleed air from the fuel system after installation, verify calibration using Perkins diagnostic tools, and store spare units in a dry, dust-free environment to preserve sealing integrity.