Caterpillar original Diesel Engine Fuel Injector Common Rail Replacement for CAT C15 C18 C12 C13 3406E Perkins Excavator Parts 10R-8989 10R-1273 280-0574 211-3023 original new injector

The Caterpillar CAT C15 fuel injector 10R-8989 is a remanufactured OE-style unit injector designed for the Caterpillar C15 diesel engine platform, including C15 truck engines, C15 industrial engines, C15 generator engines, and selected C15 marine auxiliary engine applications. Authorized cross reference numbers include 10R-8989, 10R8989, 280-0574, 2800574, CA10R8989, CA2800574, 242-9537, 1R-0749, 1R-1808, 20R-1525, and 10R-1273, supporting straightforward identification and part lookup across dealer, distributor, and workshop channels.

This C15 diesel fuel injector is engineered for heavy-duty operation and provides precise fuel metering, controlled injection timing, consistent spray atomization, reliable high-pressure sealing, and balanced cylinder delivery. A complete C15 engine set typically requires six injectors, and fitment should always be confirmed by engine serial number. The injector supports improved combustion efficiency, reduced fuel waste, stable power output, lower vibration, and extended service life in demanding duty cycles.

The injector is suitable for heavy-duty truck repair, construction and mining equipment maintenance, diesel generator service, marine auxiliary engine support, oilfield equipment, fleet maintenance operations, and engine rebuilding workshops. Recommended maintenance practices include the use of clean diesel fuel, scheduled fuel-filter replacement, regular water-separator drainage, clean fuel-tank management, injector harness inspection, engine-oil monitoring, exhaust-smoke checks, diagnostic data review, sealed storage, and careful handling of the injector tip to preserve long-term performance.