original 196-4229 Diesel Fuel Injector Assembly for 3126 3126B 3126E Engine Construction Aftermarket Parts 1964229 10R-0782 169-7411 177-4752 original new injector

Engineered for demanding fleet and industrial service, the 196-4229 diesel fuel injector is an OE-style replacement built specifically for . 3126 series HEUI applications. This unit matches original fuel system architecture, injector body dimensions, nozzle characteristics, electrical connection, and hydraulic actuation requirements, ensuring calibrated compatibility with 3126, 3126A, 3126B, 3126E, and 3116 truck engines. Common cross references include 1964229, 0R-9350, 10R-9239, 141-7837, 169-7410, 173-1013, 173-9272, 222-5972, EX639350, and AP63922.

As a Hydraulically Actuated Electronically Controlled Unit Injector, the 196-4229 uses high-pressure engine oil to actuate the injector while the ECM manages electronic timing and fuel delivery for precise metering and atomization. Each injector is flow tested and spray tested for uniformity, then flow matched and balanced to work together as a set. New sealing components, 100% O-ring replacement, and surface lapping of critical components support consistent performance under heat, vibration, long duty cycles, dusty job sites, variable fuel quality, and high-load operation.

Typical applications include medium-duty trucks, dump and utility trucks, school and commercial buses, fire apparatus, wheel loaders, excavators, backhoes, generator sets, pump drives, irrigation engines, marine auxiliary units, and oilfield service trucks. Fitment verification by engine serial number, injector code, and ECM calibration is required. Ideal for diesel repair shops, fleet maintenance operations, engine rebuilders, and heavy equipment distributors worldwide.