original 232-1168 Common Rail Fuel Injector Assembly for 3412 C15 3408E 3412E Diesel Engine AD45 Excavator Replacement OEM 174-7526 174-7528 Aftermarket original new injector

Engineered for demanding diesel applications, the 232-1168 fuel injector delivers OEM-equivalent performance for the 3412 engine family, including 3412B and 3412C variants. Cross-referenced under 2321168 and CAT2321168, this mechanical injector assembly installs directly into the cylinder head fuel injection port and integrates seamlessly with the original mechanical fuel injection system used in industrial gensets, marine propulsion units, mining trucks, and oilfield power equipment.

Manufactured under ISO-controlled processes, the 232-1168 features a precision nozzle design, hardened internal components, and corrosion-resistant, high-temperature materials for extended service life under continuous heavy-duty loads. Held to OEM tolerances, the injector improves fuel atomization and combustion efficiency, reduces smoke emissions, and supports higher power output with lower fuel consumption. Operators benefit from stable idle, smoother throttle response, and consistent injection balance across all cylinders—critical for continuous power plants, cargo ships, offshore vessels, drilling rigs, and crushing plants running the 3412 series.

For reliable service, use clean premium diesel fuel, replace sealing washers at installation, inspect fuel lines, and verify injector calibration before operation. Routine filter replacement, water contamination control, and monitoring fuel pressure and exhaust smoke help maximize injector life. Common diagnostic guidance: black smoke indicates nozzle wear; white smoke points to spray pattern issues; hard starting requires injection pressure testing; power loss suggests flow rate evaluation; rough idle calls for injector balance verification. Trusted worldwide across power generation, marine, mining, and construction sectors.