original 10R-7223 Diesel Fuel Injector Nozzle for C9 Engine 330D L 330D Excavator Fuel Pump Injector 387-9434 387-9432 20R-8065 254-4340 original new injector

Engineered as a direct replacement for OE 10R-7223, this common rail diesel fuel injector delivers dependable performance for C9 and C9 ACERT engines operating across construction, mining, marine, agricultural, and power generation applications. Fully cross-referenced with 326-4701, 326-4702, and 326-4703, the injector serves as a reliable service solution for 330D, 336D, and 345D excavators, 966H, 972H, and 980H wheel loaders, 140M and 160M motor graders, generator sets, marine auxiliary engines, and industrial power units.

Precision fuel metering technology ensures accurate fuel delivery under varying load conditions, while the high-pressure common rail design supports extreme rail pressures required by modern ACERT combustion strategies. A multi-hole nozzle produces superior atomization for optimal spray patterns, improving combustion efficiency, lowering fuel consumption, and reducing exhaust emissions. Hardened alloy steel internal components and specialized surface treatment resist wear, fuel contamination, and moisture, extending service life in demanding duty cycles.

Installation requires inspection of the injector bore, replacement of O-rings and sealing washers, complete fuel system bleeding, and verification of fuel pressure and injector balance rates. To maximize service intervals, operators should use high-quality diesel, replace fuel filters regularly, drain water separators, and avoid contaminated supplies. This injector is ideal for fleet operators, equipment rebuilders, generator maintenance contractors, and industrial engine service providers seeking consistent OEM-level performance.