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The Exergy XRG HP4 pump is a Denso HP4 high-pressure fuel pump specified for 2017–2024 Chevrolet Duramax 6.6L L5P engines. As a direct-match pump option, it serves the high-pressure portion of the fuel delivery system for Duramax L5P applications. The overview reflects the unit's intended role and explicit fitment to the Duramax 6.6L L5P Denso HP4 configuration.
Exergy 17-24 Chevrolet Duramax 6.6L L5P Denso HP4 Pump
