Caterpillar original Fuel Injector 0R-3424 0R-1747 4W-7017 for Caterpillar 3406B 3406C 3412 3408 3306 3304 Excavator Parts Replacement for OEM 0R-1740 original new injector

Built for demanding Caterpillar diesel applications, the 0R-3424 fuel injector nozzle is an original reman component designed according to Caterpillar OEM specifications. It converts high-pressure diesel fuel into a finely atomized spray: fuel pressure overcomes spring force, the needle valve lifts, and fuel passes through precision micro-orifices before the needle closes to help prevent dribble. This controlled delivery supports accurate spray-pattern geometry, combustion-chamber performance and stable engine power output.

Precision CNC grinding and micron-level tolerances combine with premium alloy steel construction for high wear resistance. Optimized nozzle geometry promotes consistent atomization, while accurate injection timing can support improved fuel efficiency and reduced fuel consumption. Cleaner, more efficient combustion also helps lower particulate formation and reduce piston and cylinder wear, contributing to extended engine service life. The nozzle is intended for professional fuel-system service, with injector calibration, leak testing, spray-pattern verification and CAT-recommended installation torque strongly recommended.

Compatibility references cover CAT 3406B, 3406C, 3408 and 3412 diesel engines, as well as Caterpillar marine power units, generator engines, industrial power systems and mining engine applications. Cross references include 0R3424, 7W-7032, 7W7032, 0R1747 and R-0R3424; engine serial number and injector assembly verification are recommended before installation. Serving construction, mining, power generation, marine, oil and gas, agricultural and engine-rebuilding sectors, the nozzle is backed by a 12-month warranty, with global export available.