Diamond T ECM for Chevy/GMC (2004-05) 6.6L Duramax LLY

Ensure optimal performance and reliability for your 2004-2005 Chevy/GMC 6.6L Duramax LLY with the Diamond T ECM. This Engine Control Module is expertly overhauled to exceed OEM standards, providing superior quality and durability. Capable of managing a wide range of truck modifications, custom tunes, and upgrades, it’s the ideal solution for enthusiasts and professionals alike.

The ECM is a critical component for the LLY engine, and failures can be costly and disruptive. Diamond T addresses this common issue with a high-quality replacement that ensures compatibility and exceptional performance. Unlike other options, this ECM requires no core charge, simplifying the replacement process.

With free programming to the latest factory calibrations and a straightforward plug-and-play installation, the Diamond T ECM is designed to get your Duramax LLY back on the road quickly and reliably. Backed by a 1-year warranty, this replacement module delivers unmatched value and performance for your Chevy/GMC truck.


Cross Reference Part Numbers:
• 12244189
• 15141667
• 15193862
• 15228726
• 15231599
• 15246462
• 15292913