original 169-7411 177-4752 196-4229 173-9268 Fuel Injector for 322C 3126 Diesel Engine Spare Part new injector original new injector

Engineered exclusively for the 3126 engine platform, this HEUI fuel injector carries the primary OE number 169-7411 and is fully compatible with 3126, 3126B, 3126E, 3126 ATAAC, 3126 Marine, and 3126 Generator Set configurations. The injector utilizes HEUI technology, where the ECM commands injection timing while high-pressure engine oil drives an intensifier piston to multiply fuel pressure before atomization through a multi-hole nozzle. This precise metering process ensures efficient combustion across the entire 3126 engine family.

Manufactured to OEM-level standards using hardened alloy steel and precision-machined internal components, this injector delivers superior atomization, reduced fuel consumption, and extended service life. It meets emission compliance requirements for lower particulate and NOx output. The unit is interchangeable with multiple authorized service and cross-reference numbers including 0R-9349, 10R-9238, 131-7150, 126-0499, 173-4059, 173-9267, 173-9268, 196-1401, 222-5967, EX639349, FS0R9349, R0R9349, and 639349, simplifying inventory management for distributors and fleet operators servicing 3126 powered equipment.

Suitable for construction machinery, industrial generator sets, marine auxiliary engines, heavy trucks, commercial buses, mining equipment, and agricultural machinery, this injector is backed by a 12-month warranty. Proper installation requires new sealing kits, a clean fuel filter, verified HEUI oil pressure, and an injector cut-out test. Common diagnostic concerns such as hard starting, excessive smoke, increased fuel consumption, and reduced power are directly addressed by the precision calibration of this 3126-series replacement injector.