The Industrial Injection XP 600 CP3 fuel pump is supplied for Duramax 6.6L applications as a no-core replacement. This CP3-style unit directly replaces the factory high-pressure pump on supported Duramax engines, enabling fuel delivery system repairs or upgrades without returning a core. The listing denotes compatibility with the Duramax 6.6L platform per the product description.
Industrial Injection Duramax 6.6L XP 600 CP3 Fuel Pump (No Core)