Caterpillar original Diesel Engine Fuel Injector 0R-2923, Replacement for OEM 7E-3381, Cross Reference 0R-2925 9Y-3773, for Caterpillar CAT 3500A 3508 Construction Machinery original new injector

The Caterpillar-branded 0R-2923 diesel fuel injector is a precision-manufactured fuel system component engineered exclusively for Caterpillar 3512A series engines, including generator, marine, industrial, and offshore 3512A variants within the CAT 3500 engine family. Designed as a direct replacement for CAT part number 127-8216 (alternate formatting 1278216), this OEM-equivalent injector carries the official OE part number 0R-2923 (alternate 0R2923) and is validated for direct fit on 3512A fuel injection systems.

Built to OEM-level manufacturing tolerances, the injector delivers consistent high-pressure fuel delivery across demanding operating conditions, with precision nozzle geometry that atomizes diesel fuel into fine particles for optimized air-fuel mixing. This design improves combustion efficiency, boosts fuel economy, reduces exhaust emissions, stabilizes engine output, cuts vibration, and extends overall engine service life, while corrosion- and wear-resistant construction reduces long-term component wear.

Suitable for a wide range of industrial use cases, the 0R-2923 supports generator sets, marine power systems, mining machinery, oilfield and offshore equipment, industrial power stations, emergency backup systems, and construction power units. It delivers reliable, low-maintenance operation for B2B operators across power generation, marine, mining, and oil and gas sectors, with global shipping availability and reduced total operating costs.