Caterpillar original Common Rail Engine Fuel Injector for Cat 336E, Fuel Injector 173-9272 for C9.3, Cross Reference 232-1173, 382-0709, Replacement for OEM 392-9046 original new injector

Engineered for demanding Caterpillar heavy-duty diesel operating conditions, the CAT 173-9272 (also referenced as 1739272) is a diesel common rail fuel injector assembly built for industrial and construction equipment applications. As a core diesel fuel injection system component, it is positioned as a replacement solution for Caterpillar C9.3 engine platforms, with established recognition across OEM, aftermarket, remanufacturing and global industrial parts supply channels.

This injector is primarily linked to the CAT 336E excavator and the Caterpillar C9.3, C9.3 ACERT, and C9.3 industrial diesel engine portfolios. Public supplier databases also note broader engine references including 3126B, 3412E, 3512B and 5110B, plus a full library of interchangeable part numbers covering OEM alternatives, reman units and aftermarket listings. All compatibility and cross-reference data requires final verification via engine serial number, machine arrangement number, injector label and official CAT parts catalog before ordering to prevent fitment errors.

The 173-9272 injector is offered in multiple condition options to meet varied operational and budget needs, including new, aftermarket replacement, remanufactured, rebuilt and service exchange units. It supports both sample orders for validation and bulk supply for diesel parts distributors, repair shops, fleet operators, construction machinery owners and equipment dealers, with export packaging or neutral box packaging available for international shipment. The product data is structured for B2B marketplace indexing and procurement database matching to streamline sourcing workflows.