Perkins original Perkins 166-0149 Diesel Fuel Injector for C12 Engine Excavator Truck Spare Parts Replacement for OEM new injector original new injector

The Perkins 166-0149 fuel injector is engineered as a heavy-duty OE replacement for Perkins C12 diesel engines, with cross-reference compatibility to part numbers 0R-9530, 116-8805, and 123-0469, covering C10, 3196, and 3176 engine platforms commonly found in marine, truck, generator, and industrial power applications. Designed for high-pressure diesel fuel environments, it delivers precise injection quantity, fine atomization, and stable combustion to support balanced cylinder performance, improved fuel economy, and reduced exhaust smoke across demanding operating cycles.

Built with wear-resistant internal components, the 166-0149 injector withstands the thermal and mechanical stress of long-hour industrial and marine duty, including commercial vessels, workboats, on-highway trucks, diesel generator sets, construction machinery, mining equipment, and oil and gas field power packages. Its repair-friendly design allows supply as a single unit or a complete six-injector engine set for inline six-cylinder C12 overhaul projects, while multiple searchable OE and cross numbers simplify sourcing and replacement verification.

Routine maintenance of the fuel system—including timely fuel filter replacement, water separator draining, clean diesel supply, and air filter service—helps prevent nozzle wear, blockage, and leakage that lead to hard starting, rough idle, power loss, or high fuel consumption. When symptoms such as black smoke, misfire, or excessive exhaust temperature appear, cylinder cut-out and return flow testing are recommended, and full-set replacement should be considered during major overhaul to ensure even cylinder performance and long-term reliability.