original 961-4357 Fuel Injector Parts Kit Compatible with 3512A Engine Spare new injector original new injector

Engineered exclusively for the 3512A platform, the 961-4357 fuel injector delivers direct-fit compatibility across the 3500 Series, including 3508, 3508B, 3512, 3512A, 3512B, 3516, 3516B, and 3516C engines. Precision-machined from heat-treated alloy steel, this injector meets strict OEM specification tolerances to maintain factory-calibrated spray patterns and injection timing within the 3512A combustion chamber geometry. Each unit is 100% performance tested, ensuring balanced fuel delivery and stable rail pressure across all cylinder positions.

The 961-4357 injector is widely deployed in generator sets, marine propulsion systems, mining trucks, oilfield power equipment, industrial power plants, construction machinery, offshore energy platforms, and rail power systems where the 3512A and related 3500 Series engines operate. Its high-pressure electronic fuel injection design supports optimized fuel consumption and reduced emissions, while high-temperature and corrosion-resistant materials extend service life in harsh operating environments. Authorized cross-references include 0R-8479, 10R-0957, 211-3028, 217-2570, CAT9614357, -961-4357, 3512A, 3512B, 3508B, 3516B, and 3516C, allowing streamlined inventory management for fleet maintenance and dealer service operations.

Routine maintenance of the 961-4357 injector includes the use of clean diesel fuel, regular filter replacement, and periodic engine diagnostics to monitor injector balance rates and verify part numbers before installation. Clean injector bores, new sealing washers, and inspected fuel lines help prevent common issues such as fuel delivery fault, cylinder misfire, injection timing error, fuel pressure imbalance, and combustion efficiency loss. Technicians should consult service manuals for torque specifications and ECM fault code procedures to ensure correct installation and sustained engine performance in demanding industrial and marine applications.