Perkins original OR-9350 Diesel Fuel Injector Assembly 222-5972 10R9239 173-9272 For Caterpillar 3126 3126B 3126E Engine original new injector

The Perkins 3126 Series HEUI Fuel Injector OR-9350 is engineered as a direct OE replacement for Perkins 3126, 3126B, 3126E, and selected 3116 diesel engines. Built around Hydraulic Electronic Unit Injector technology, this injector delivers precise fuel metering and high-pressure atomization, supporting stable combustion, balanced cylinder output, and consistent engine power across medium-duty truck, bus, RV, marine, and industrial applications. Its industrial-grade body construction and electronic actuation design ensure reliable response under demanding load cycles.

Compatible with multiple interchange references including OR-9350, 0R-9350, 0R9350, OR9350, EX639350, 141-7837, 173-1013, 173-9272, 196-4229, 222-5972, and 169-7410, the injector supports global part-number search and simplifies fleet maintenance, reman exchange, and cross-border sourcing. The replacement-ready design allows technicians to restore accurate fuel delivery without extensive modification, reducing vehicle downtime for vocational fleets, emergency vehicles, construction equipment, and diesel power units.

Proper HEUI operation depends on clean oil, stable oil pressure, and uncontaminated diesel supply. Routine maintenance—fuel filter replacement, water separator service, oil and filter changes, harness inspection, and ECM fault scanning—helps protect the injector and prevent common symptoms such as rough idle, misfire, hard starting, smoke, or power loss. The Perkins 3126 Series Injector OR-9350 provides a dependable service solution for distributors, repair shops, and end users seeking long-term engine reliability.