Caterpillar original 10R-1267 Fuel Injector Common Rail Diesel Injector for Excavator Loader C9.3 Engine Replacement for OEM 20R-5075 Cross Reference 232-1175, 20R-5078 original new injector

Built for B2B heavy-duty powertrain parts procurement, the 10R-1267 is a Caterpillar-spec common rail diesel fuel injector assembly purpose-built for C9.3 series diesel engines. Mounted directly to the engine cylinder head as a core component of the engine fuel system, it is engineered to deliver precise fuel metering and accurate injection timing to support consistent, reliable engine performance. It is designed to operate with modern low-sulfur, low-lubricity diesel fuels, meeting the rigorous demands of Caterpillar heavy-duty engine platforms.

The injector supports a full range of C9.3 variants, including standard C9.3, C9.3 ACERT, industrial, excavator, power unit, and select marine configurations. Official Caterpillar Parts listing confirms fitment for D9R track-type tractors and 773E off-highway trucks, with additional use cases across excavators, loaders, mining equipment, and industrial generator sets. Validated aftermarket cross-reference numbers include 232-1171, 456-3545, 456-3589, 20R-5073, 417-3013, and other matching part identifiers.

Available in new, Cat Reman, original replacement, and aftermarket replacement conditions, the part serves diesel repair shops, fleet maintenance teams, construction equipment distributors, engine rebuilders, and wholesale parts buyers. To avoid fitment errors, all purchasers must verify compatibility using the engine serial number, machine model, original injector label, and fuel system configuration before ordering. This critical check ensures the injector matches the exact engine arrangement and operational requirements.