Caterpillar original Fuel Injector Assembly For CAT3126 Diesel Excavator Engine, 198-6877, Cross Reference 20R-4147 Replacement OEM Fuel Injector original new injector

As a standardized fuel system component for CAT’s 3126 engine platform, this 198-6877 HEUI diesel fuel injector assembly functions as an original equipment replacement for compatible diesel engine setups. It is specified for use with 3126, 3126B and 3126E series diesel engines, matching the design specifications of the corresponding HEUI fuel injection system to support routine operation and maintenance of industrial heavy-duty powertrains. It belongs to CAT’s 3126 product series, delivering clear platform traceability for B2B procurement teams.

This injector supports a comprehensive range of listed cross-reference part numbers, covering 26 alternative OE numbers for 3126 series injector applications. Buyers can match the unit directly against the part number marked on their existing injector, eliminating redundant parameter verification steps during sourcing, restocking and repair workflows. The broad cross-number coverage also helps spare parts distributors and maintenance service providers streamline inventory SKU setup while meeting diverse replacement demands.

Conforming to OEM quality and OEM equivalent requirements, this fuel injector aligns with original equipment specifications for 3126 platform applications. It serves as a standardized replacement option for engine overhauls, routine spare parts replenishment and industrial equipment maintenance schedules. For B2B buyers seeking spec-matched fuel system components, this 198-6877 injector offers a widely compatible, consistent selection for 3126 series diesel engine support.