Fuel Injection Control Module for Chevy/GMC (2001-04) 6.6L Duramax LB7, New

Take your 2001-2004 Chevy/GMC 6.6L Duramax LB7 to the next level with the Diamond T Brand New Fuel Injection Control Module (FICM). Unlike remanufactured or refurbished options, this FICM is 100% brand new and built in the USA with upgraded internals for unmatched reliability and performance. Because this is a brand new unit, there’s no core charge and no need to return your old FICM—making installation and purchase completely hassle-free.

Designed to resolve the common failure points found in original LB7 FICMs, this upgraded module is built to support performance tunes, truck modifications, and the demands of heavy-duty use. With plug-and-play installation, you can quickly restore or upgrade your Duramax without the hassle of programming or core returns.

Every Diamond T new FICM is backed by a lifetime warranty, ensuring your investment is protected for as long as you own your truck. For diesel owners who demand the best in quality, dependability, and American craftsmanship, Diamond T sets the standard – American Made, Because It Matters.