Caterpillar original Fuel Injector 2W-5201, Cross Reference 0R-1759 for C3500 Series Diesel Engine, Construction Machinery Parts for 3508, Gen Set, Replacement for OEM Parts original new injector

Built for Caterpillar 3512A series V12 diesel engines, the CAT 2W-5201 fuel injector is a heavy-duty component engineered for continuous, high-load industrial operation. Primarily designed for 3512A engines, it may also fit the broader CAT 3512 engine family across industrial, marine, generator set and oilfield power variants. It supports equipment including generator sets, marine propulsion systems, mining machinery, oilfield drilling hardware, heavy construction machinery and stationary backup power systems. Buyers must verify fitment via engine nameplate, original part number or official parts manual before ordering, as configurations vary by serial number, fuel system setup, emission standard and production year.

As a precision diesel injection component, it delivers accurately metered diesel fuel into the combustion chamber at the correct timing. Proper fuel atomization supports stable power output, smoother combustion, lower fuel consumption, reduced smoke emission and reliable performance under heavy industrial loads. Its industrial-grade construction extends service life, cuts unplanned engine downtime and lowers long-term operating costs for equipment maintenance teams.

Identifiable via multiple part number formats including 2W-5201, 2W5201, 8N-5201, 8N5201, 0R-5201 and 0R5201, it streamlines global sourcing for B2B stakeholders. It can be supplied as new, replacement, OEM-type, aftermarket or remanufactured units per buyer requirements, and is ideal for engine rebuilders, generator service firms, marine repair yards, mining contractors, diesel parts distributors and heavy equipment spare parts importers.