Caterpillar original  0R-3190 fuel injector pump for 3114 3116 3126 3512C 3516C engine E320L excavator parts 7E-8729 7E9585 20R-2056 replacement original new injector

The CAT 3116 Fuel Injector 0R-3190 is an original-grade diesel injector designed as a direct OE replacement for Caterpillar 3114 and 3116 diesel engines. It is fully compatible with cross reference numbers 7E-8729, 0R-3002, 418-8820, CA0R3190, and CA7E8729, allowing flexible sourcing for service operations, fleet maintenance, and remanufacturing workshops. The injector is engineered for use in E200B and EL200B excavators, 910E and 910F wheel loaders, and IT12B, IT14B, and IT14F integrated tool carriers operating across construction, mining, agriculture, material handling, and road-building applications.

Manufactured from alloy steel with precision-machined internal components, this injector delivers accurate fuel metering and fine atomization to support clean combustion and stable engine performance. The heavy-duty body construction is built to withstand the high-pressure operating environment of the CAT 3114 / 3116 fuel system, while multiple cross-number coverage simplifies inventory management for distributors and end users. Each unit is supplied in sealed anti-rust packaging, with sales handled on a single-piece basis to meet replacement demand.

Routine maintenance recommendations include scheduled fuel filter replacement, use of clean diesel fuel, regular draining of the water separator, and periodic inspection of injector leakage and return flow. Operators should monitor exhaust smoke color, idle quality, and knocking behavior to detect injector-related issues early. Spray pattern and flow testing is advised where available, and replacing multiple injectors as a set is recommended to maintain consistent engine performance.