original Fuel Injector 10R1262 222-5963 for 3126E, 3126B, 3512B, 3412 Series Engine, Cross Reference 10R-1266, Fit Vehicle and Power Generator Equipment original new injector

Built for demanding continuous-duty environments, the 10R1262 fuel injector assembly is a precision-engineered diesel fuel injection component for 3412 Series V12 engines. It performs fuel metering, pressurization and atomization while promoting uniform fuel distribution inside the cylinder. These functions support efficient combustion, consistent power output, responsive engine operation, fuel economy, emission control and engine longevity in high-load service.

The injector combines precision nozzle technology, hardened wear-resistant components, corrosion-resistant materials, OEM manufacturing tolerances and high-temperature durability in a heavy-duty industrial design. It is offered with new or remanufactured condition options and an OEM-equivalent quality standard. Compatibility covers 3412, 3412B and 3412C engines, including marine, generator and industrial variants; 3412E fitment requires serial-number verification. Typical equipment uses include generator sets, marine vessels, mining trucks, drilling equipment, industrial pumps and earthmoving machinery.

For sourcing and maintenance planning, cross references include 10R-1262, 10R1262RX, 0R3421, 4P9830 and 7W7032, with verification by engine serial number recommended. Installation should include fuel-system cleaning, bore and sealing-surface inspection, filter replacement, fuel-line inspection, torque specifications and post-installation performance testing. Recommended service intervals include fuel filter inspection every 250 hours, fuel system inspection every 500 hours and injector testing every 2,000 hours, helping buyers support long service life and control maintenance costs.