Caterpillar original Fuel Injector 268-1839, Replacement for OEM 5577627, Cross Reference 295-1411, for Caterpillar C7 C9 387-9427 Engine, Construction Machinery Excavator L LN original new injector

The 268-1839 fuel injection component is an original OEM replacement for Caterpillar C7, C-7 and C7 ACERT diesel engine platforms. Registered under interchangeable part numbers 2681839 and CA2681839, it is commonly classified as a HEUI diesel injector, while Caterpillar parts catalogs may also label it PUMP GP-FUEL INJECTION for cross-reference accuracy. It fits the C7’s 7.2L inline 6-cylinder architecture and Hydraulic Electronic Unit Injector system, which uses high-pressure engine oil to electronically actuate injection events.

This component is referenced as a fitment for multiple C7-powered Caterpillar heavy equipment lines, including 324D/325D/329D excavators, 120K/140K motor graders, 950H/962H wheel loaders, 525C/535C/545C wheel skidders, plus forestry and industrial machinery. All listed fitments are searchable references, not guaranteed universal fits. B2B buyers including repair shops and distributors must verify old part numbers, engine/machine serial numbers, connector type, mounting style and appearance before ordering.

Within the C7 HEUI system, the part works with the engine control module, which adjusts injection timing and fuel delivery based on real-time sensor data for engine speed, load, temperature, oil pressure and emissions requirements to support stable engine operation. It has a 1-piece MOQ, supports single-unit and bulk orders, and ships via DHL, FedEx, UPS, TNT, air or sea freight with pre-shipment inspection for all orders.