Perkins original  116-7150 Fuel Injector Assembly 3126 C3126 Common Rail for Excavator 169-7411 198-6605 0R-9350 Replacement for OEM  original new injector

Built for the Perkins 3126 HEUI side mount platform, this fuel injector assembly delivers precision fuel metering, controlled atomization, and reliable combustion under heavy-duty diesel operating conditions. The injector is designed to fit Perkins 3126, 3126A, and 3126B engines, using hydraulic electronic unit injector technology where high-pressure engine oil and electronic control signals work together to manage injection timing and fuel delivery. It is widely applied on Perkins 3126 truck engines, industrial engines, and 30/30 Deuce track-type tractor power units, making it a common replacement part for rebuilders and aftermarket distributors.

The injector receives fuel from the engine supply system and uses electronically controlled hydraulic actuation to generate high injection pressure. Diesel fuel is pressurized and atomized through the nozzle to produce a controlled spray pattern inside the combustion chamber, supporting stable idle, strong acceleration, and efficient fuel consumption. Multiple cross references such as 160-1697, OR4970, CA0R4970, 0R4970R, REB0R4970, 0R4970DR, 116-6706, 160-1695, 0R9807, and OR9807 make it easier for technicians and parts dealers to match the correct unit across reman databases, supplier catalogs, and global diesel parts marketplaces.

Because the HEUI system depends on both clean fuel and clean engine oil, correct installation and regular maintenance are critical. Before installation, operators should verify the old injector number, clean the injector bore, fit new O-rings, lubricate the seals with clean engine oil, and follow the Perkins service manual for torque values. After installation, the electrical connector, engine oil circuit, fuel supply circuit, and spray pattern should be inspected for leaks or abnormal running. Replace filters on schedule, maintain correct oil quality, and consider full-set replacement when cylinder balance is required.