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The Wehrli high‑pressure line CP3 conversion kit for the 6.6L LML Duramax supplies a larger‑ID, longer high‑pressure fuel line and upgraded rail fitting intended to increase fuel volume flow. Recommended for use with 10, 12, and 14mm CP3 pumps, the kit includes high‑pressure fittings, rail plugs, and caps to support a CP3 conversion while maintaining proper high‑pressure fuel routing.
Wehrli 6.6L LML Duramax High Pressure Line CP3 Conversion Kit
