original 166-0151 Fuel Injector Nozzle for C12 Diesel Engine 345B II 365B L, Replacement Part 170-5252 187-6549 212-3463 new injector original new injector

Engineered specifically for the C12 / C-12 heavy-duty diesel engine platform, this 166-0151 original-type replacement injector delivers precise fuel metering and an optimized spray pattern to support stable combustion across demanding operating cycles. The direct replacement design allows straightforward installation into existing injector bores when the part number, engine serial number, and original injector number have been confirmed, while hardened internal components help resist wear under continuous high-load conditions typical of heavy-duty truck, construction, and industrial power applications.

Buyers benefit from broad cross-number recognition including 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 procurement for fleet operators, engine rebuild shops, and aftermarket distributors serving global markets. Improved combustion efficiency contributes to reduced fuel consumption and lower exhaust temperatures, while stable injection performance helps minimize unplanned downtime for trucks, excavators, loaders, diesel generator sets, standby power units, and marine auxiliary engines.

Routine maintenance practices such as scheduled fuel filter replacement, water separator draining, clean diesel fuel usage, ECM fault code checking, and periodic injector performance testing help extend service life. During overhaul, matched set testing is recommended, and installation should follow official torque specifications, including 70±5 Nm for the injector fixing bolt and 40±5 Nm for the solenoid connector, followed by leak inspection and engine performance verification.