Caterpillar original 4P-2995 Fuel Injector Nozzle Replacement for OEM Diesel Engine 3116 3114, Fits 322CFM 325B M318 M320 Excavator Parts original new injector

The CAT 3116 3114 C7 Diesel Fuel Injector 4P-2995 4P2995 0R-8471 0R8471 0R-3389 0R3389 7E-8952 7E8952 0R-3006 0R3006 MUI Fuel Injector is an OE-style replacement unit engineered for Caterpillar 3100 Series diesel engines, with the CAT 3116 as the primary application. It is designed to match original injector replacement channels for the 3114, 3116, and C7 platforms, providing a direct-fit solution for workshops, fleet operators, and engine rebuilders who service these engine families.

This injector features precision atomization that produces a fine diesel spray pattern to support cleaner combustion and reduced exhaust smoke, combined with stable fuel metering that delivers controlled fuel quantity per cycle to help restore idle quality, throttle response, and overall engine smoothness. Each unit is built to meet heavy-duty application requirements across medium-duty truck, bus, marine, generator set, construction, industrial, and off-highway equipment markets, and is compatible with both new aftermarket and reman supply chains to support flexible sourcing strategies.

Quality control includes testing for leakage, fuel delivery rate, and spray pattern to reduce installation risk and shorten commissioning time. The injector is available as a single unit or as a 6-piece matched set, allowing technicians to address single-cylinder failures or perform complete cylinder balance during engine overhaul and fleet maintenance programs. Multiple cross-reference numbers covering 0R-8471, 0R-3389, 7E-8952, and 0R-3006 are supported to simplify part lookup and inventory management for distributors and service centers.