Caterpillar original 10R-1003 212-5328 166-0151 170-5252 Reman Diesel Fuel Injector for C12 330D 345B II Excavator Engine Parts new injector original new injector

Engineered as a direct OE-style replacement for Caterpillar C12, C-12, C10, C-10, 3176, and 3196 diesel engines, this remanufactured fuel injector is built around part number 10R-1003 with extended cross-reference coverage including 223-5328, CA10R1003, and CA2235328. The unit is assembled to heavy-duty diesel construction standards, delivering precision fuel metering, stable pressurization, and consistent atomization for reliable combustion chamber spray patterns. By restoring calibrated injection performance, the injector supports recovered engine power output, improved fuel economy, dependable cold-start behavior, and controlled emissions across demanding operating cycles.

The injector is engineered for broad compatibility with core-return reman supply chains and global aftermarket distribution channels. It supports heavy-duty truck engine platforms, industrial diesel engines, construction machinery, mining equipment, and diesel generator sets used throughout North America, Latin America, Europe, the Middle East, Africa, Southeast Asia, and Australia. Its OE-style fitment allows straightforward installation during fleet maintenance, engine rebuild projects, and truck repair operations, making it a practical choice for diesel engine repair shops, parts distributors, reman wholesalers, and service providers serving mining and construction equipment fleets.

To maintain long-term performance, operators should use clean diesel fuel, follow scheduled fuel filter replacement, drain water separators regularly, and clean injector seats when servicing the fuel system. Periodic inspection of fuel lines, monitoring of engine oil condition, exhaust smoke observation, and diagnostic code review are recommended. Bench testing, return-flow testing, and seal replacement can address issues such as nozzle blockage, poor atomization, internal leakage, external leakage, cylinder misfire, hard starting, or excessive return flow, while full-set replacement should be considered during major engine overhauls.