Perkins original  173-4059 174-7528 20R-0760 20R-0759 171-9710 138-8756 Common Rail Diesel Engine Fuel Injector for 3412 3408 3412E 3512B 5110B 3126B original new injector

The Perkins 3412 Fuel Injector 173-4059 is a precision-engineered diesel fuel injection component manufactured to OEM specifications for the Perkins 3412 engine platform. Designed for direct injection diesel systems, this injector assembly delivers accurate fuel metering and consistent fuel delivery at high combustion pressures. It supports improved combustion efficiency, which contributes to enhanced engine power output, reduced fuel consumption, and lower exhaust emissions across demanding operating conditions. Stable idle performance and reliable cold starting further extend its suitability for heavy-duty service environments.

Engineered as a direct-fit OEM equivalent replacement, the 173-4059 injector is compatible with Perkins 3412, 3412B, and 3412C engines, including marine propulsion, power generation, and industrial engine configurations. It is widely applied in diesel generator sets, marine propulsion systems, mining trucks, oilfield drilling units, industrial pumps, compressor stations, mobile power units, and other heavy equipment platforms. Cross reference numbers 1734059 and CAT1734059 ensure straightforward identification and replacement within global Perkins service networks across North America, South America, Europe, the Middle East, Africa, Southeast Asia, Australia, and Central Asia.

Installation requires cleaning the injector mounting area, inspecting the fuel supply system, installing new sealing components, positioning the injector correctly, and torquing according to the Perkins service manual with calibrated torque tools. After priming the fuel system, operators should start the engine and verify fuel balance, performance, and absence of leaks. Preventive maintenance includes the use of high-quality clean diesel fuel, regular replacement of fuel filters, avoidance of water contamination, routine inspection of fuel pressure, and monitoring of exhaust condition. Damaged fuel lines should be replaced as needed to preserve long-term injector reliability and engine performance.