SunCoast Allison 1000 Valve Body HD

High-performance heavy-duty valve body assembly for the Allison 1000 transmission in Duramax diesel trucks. Engineered by SunCoast with upgraded valve body to handle increased power from performance tunes, turbo upgrades, and heavy towing applications. The Allison 1000 is a strong platform that responds well to quality performance upgrades.

Designed for 2001-2019 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD. SunCoast is a trusted name in Duramax and Allison performance, providing proven components used by diesel performance enthusiasts and commercial operators nationwide.