original 212-3467 Injection Valve Fuel Injector for C10 C12 10R-1259 350-7555 20R-0056 317-5278 212-3463 223-5328 10R1259 new original new injector

Engineered specifically for C10, C-10, C12, C-12, 3176, 3176C and 3196 diesel engines, the 212-3467 electronic unit injector delivers precise fuel metering, high-pressure atomization and consistent spray pattern for reliable combustion. The injector assembly integrates a wear-resistant internal plunger, durable nozzle and reinforced body construction to withstand the demanding operating conditions of 725 and 730 articulated trucks, 16H motor graders, 972G II wheel loaders, 345B / 365B excavators, CPT372 truck mounted pumpers, generator sets and marine auxiliary power units. Each unit is pre-delivery tested and built to original quality specifications, ensuring direct replacement compatibility and stable performance across engine rebuild, fleet maintenance and heavy equipment repair applications.

The fuel delivery process is controlled through the engine ECM, which manages actuation timing while fuel supply enters from the engine gallery. Internal plunger mechanism generates the required injection pressure, and the precision-machined nozzle atomizes diesel into a fine spray that promotes clean and efficient combustion. Excess fuel and heat are managed through the return circuit, supporting stable rail pressure and protecting the injector from thermal stress during long operating cycles in construction, mining and industrial environments.

Proper installation and maintenance are essential to maximize service life. Operators should use clean diesel fuel, replace fuel filters on schedule, drain the water separator and maintain correct engine oil quality. During installation, technicians must verify part numbers, inspect injector condition, replace and lubricate seals, follow correct torque procedures, prime the fuel system, check ECM or trim codes and perform leak and performance tests. Common failure signs include hard starting, rough idle, black or white smoke, engine misfire, low power, high fuel consumption and diagnostic fault codes, often linked to nozzle wear, seal failure, electrical faults or contaminated fuel, making full-set replacement advisable when multiple injectors show aged performance.