Caterpillar original for 3176 3196 C10 C11 C12 Engine 116-8899 208-9160 253-0608 253-0615 253-0618 Diesel Pump Construction Machinery Excavator original new injector

The Caterpillar CAT C12 Fuel Injector 116-8899 is an OE-style electronic unit injector engineered for the Caterpillar C12 diesel engine and its electronically controlled unit injection fuel system. Built to original equipment specifications, this injector GP delivers precise diesel fuel metering, stable atomization into fine droplets, accurate injection timing, and a dependable seal between the fuel and combustion interface to support balanced combustion under heavy-duty operating loads.

Designed for demanding industrial environments, the 116-8899 injector features heavy-duty construction, precision-machined sealing surfaces, and consistent spray performance that promote long service life across heavy-duty trucks, commercial marine propulsion units, construction machinery, mining equipment, industrial power units, and generator sets. Cross-reference numbers 116-5414, 128-8510, 147-0373, 194-5083, 166-0149, 170-5240, 208-9160, 212-3462, and 350-7555 provide flexible replacement options for distributors, repair workshops, and engine rebuild operations worldwide.

For correct fitment, compatibility must be confirmed by engine serial number, injector code, original injector number, engine arrangement number, emissions rating, horsepower rating, and the Caterpillar parts catalog before purchase. Best results are achieved with clean diesel fuel, scheduled fuel filter replacement, routine water separator draining, engine oil quality control, electrical connector inspection, ECM fault code scanning, matched-set injector replacement when required, and bench testing of suspect injectors before installation.