Caterpillar original 328-2574 Fuel Injector Replacement for OEM, for heavy duty diesel engine application, 557-7633, 387-9433, 267-3360 for C9 C7 Diesel Engine, Excavator original new injector

Engineered as a specification-compliant fuel system component for Caterpillar C9-series diesel power platforms, the 328-2574 Injector GP-Fuel is an OEM-equivalent replacement part compatible with all verified C9 engine variants, including industrial, generator and marine configurations. It cross-replaces part numbers 236-2671 and 236-2672, and supports core heavy-duty sectors spanning construction, mining, power generation, oil and gas, forestry and infrastructure development.

The injector operates within the engine’s high-pressure fuel system, where its solenoid receives electronic signals from the ECM to open the needle valve with precise timing, atomizing fuel through micro-sized nozzle holes for optimal air-fuel mixing. This controlled injection process boosts combustion efficiency and fuel economy, reduces smoke emissions, raises engine power output, and cuts long-term operating costs. It incorporates industrial-grade features including precision nozzle technology, wear-resistant materials, anti-corrosion treatment and OEM-calibrated fuel delivery.

Built to deliver stable performance under extreme operating conditions, the injector offers proven industrial-grade reliability and helps reduce unplanned equipment downtime for B2B operators and aftermarket suppliers. It is packed in industrial export packaging suitable for bulk orders, and comes with a 12-month warranty to support low-risk procurement and fleet maintenance operations.