Caterpillar original Common Rail Injector for Caterpillar Excavator 20R-8846 C9 Diesel Engine Fuel Injector Cross Reference 293-4072 10R-7222 Replacement for OEM 573-4231 original new injector

As a heavy-duty diesel fuel system component purpose-built for Caterpillar C9 engine platforms, the 20R-8846 fuel injector assembly supports stable fuel delivery, accurate injection timing, and proper fuel atomization to enable consistent, efficient combustion. Officially identified in Caterpillar’s official parts catalog as a Cat® Reman Fuel Injector H1315B for C9 engines, it is engineered to withstand the demanding operating conditions common across heavy-duty diesel use cases.

Caterpillar lists the injector for C9 engine configurations spanning generator sets (including D300GC C9 and D250GC models), power systems, marine engines, industrial engines, and petroleum engines. Official related alternate Cat part numbers for the product family include 573-4231 and 20R-8069; aftermarket search terms such as 10R-7221, 10R-7222, and 10R-7223 are for reference only, and all fitment must be validated via engine serial number, existing injector part number, equipment model, and official service information before purchase.

This listing is optimized for B2B buyers including engine repair providers, fleet service teams, generator maintenance specialists, marine engine support operations, industrial diesel repair shops, and petroleum equipment service vendors. It aligns with core buyer priorities including correct fitment, reliable engine performance, long service life, replacement convenience, inventory availability, and global shipping to streamline C9 engine maintenance, repair, and sourcing workflows.