Caterpillar original Replacement Fuel Injector 177-4753 for 3126 3126B Engine, D5N D6N Excavator Tractor Parts, Common Rail Diesel Nozzle Assembly original new injector

This CAT-branded fuel injector belongs to the 3126 product series, and is a HEUI diesel injector assembly designed as an original-type replacement for compatible engine systems. It carries the core OE number 177-4753, and includes a comprehensive set of cross reference numbers covering hyphenated, non-hyphenated and CA-prefixed part number formats. Broad cross number coverage allows B2B buyers such as parts distributors and maintenance providers to match existing inventory labels and customer lookup requests without extra number conversion work.

This injector is compatible with CAT 3126, 3126B and 3126E series 7.2L inline 6-cylinder diesel engines, and fits a wide range of commercial, industrial, marine and power generation equipment. Applicable equipment includes medium-duty trucks, buses, recreational vehicles (RVs), fire trucks, marine power units, industrial generators and general industrial equipment. Its cross-scenario compatibility supports buyers serving multiple industry sectors to consolidate procurement categories and streamline after-sales parts supply.

As a dedicated replacement part for HEUI fuel systems, this injector assembly meets original-type replacement specifications to match the installation requirements of corresponding engine platforms. It is a practical stock keeping unit for diesel engine parts wholesalers, fleet maintenance teams and equipment repair facilities serving 3126 series engine users. Standardized part number mapping and wide application coverage make it a suitable offering for businesses focused on diesel engine after-sales maintenance and parts supply.