Caterpillar original Rail Fuel Injector 254-4330 Cross Reference 293-4072, 235-5261 for Caterpillar C9 10R-2828 Excavator Diesel Engine Replacement original new injector

Engineered for Caterpillar C9 series diesel engine platforms, the 254-4330 (searchable as 2544330) is a heavy-duty Hydraulic Electronic Unit Injector (HEUI) and core fuel injection system component. Compatible with standard C9 and C9 ACERT inline 6-cylinder diesel engines, it meters, pressurizes, atomizes and delivers diesel fuel into the combustion chamber, fitting the cylinder head injector bore. Cross-reference numbers for catalog matching include 254-4339, 2544339, 254-4340, 2544340 and CA2544330. Buyers must verify part numbers, engine serial numbers and machine configurations before ordering.

This injector is most commonly used for Caterpillar 330D, 336D, 336D L and 340D excavators, matching the widespread deployment of C9 engines across construction, mining, industrial, oilfield and heavy-duty power sectors. C9 ACERT engines combine fuel delivery, air management and electronic control technologies, with public well-service ratings of 205–280 bkW (205–375 bhp) at 2200 rpm across configurations. It serves B2B stakeholders including repair shops, engine rebuilders, fleet maintenance teams, parts distributors and contractors.

Available in condition options including new, OEM-standard replacement, aftermarket replacement, remanufactured and rebuilt units, the injector resolves common C9 engine issues including misfires, abnormal exhaust smoke, excessive fuel consumption and reduced performance. It is sold as a single piece, 6-piece full engine set, or in bulk for large-scale operations. Built to original specifications, it restores consistent fuel delivery and reliable engine operation for heavy-duty equipment.