original 166-0151 Diesel Fuel Injector Nozzle for C12 Engine 345B II 365B L Excavator 1660151 10R-0967 10R-0961 Fuel Injection Assembly Parts original new injector

Engineered as a direct-fit solution for the C12 heavy-duty diesel platform, the 166-0151 fuel injector delivers precise metering and an optimized spray pattern to support stable combustion across demanding duty cycles. Identified by primary OE reference 166-0151 (also listed as 1660151), this injector is widely recognized under cross numbers 350-7555, 170-5252, 147-0373, 161-1785, 166-0149, 187-6549, 212-3462, 212-3463, 229-1631, 10R-0961, 10R0961, EX630961, 116-5426, and 213-3465, simplifying sourcing for global distributors and rebuild shops.

Constructed with hardened internal components for wear resistance and functionally tested for consistent delivery, the injector supports C12 truck engines, C12 industrial power units, construction equipment, and generator applications. Typical installations include dump trucks, road tractors, excavators, loaders, graders, compactors, cranes, mining support equipment, standby power units, marine auxiliary engines, and pump engines. The direct replacement design reduces downtime, improves combustion efficiency, and streamlines fleet maintenance workflows across North America, Europe, the Middle East, Africa, Latin America, Southeast Asia, and Oceania markets.

Recommended service practices include confirming engine serial number, using clean diesel fuel, replacing fuel filters on schedule, and draining water separators. During installation, cool the engine, relieve fuel pressure, clean the injector bore, fit new seals, and follow torque specifications (example: 70±5 Nm fixing bolt, 40±5 Nm solenoid connector). Perform ECM calibration if required and inspect for leaks to ensure long-term reliability.