The BD Diesel Valve Body with part number 1030471 is specifically engineered to optimize performance and towing capabilities for 2004-2006 Duramax LLY Allison 1000 transmissions. Designed and tested by BD Diesel Performance, this valve body features modifications that enhance shift quality, increase clutch holding capacity, and provide improved oil flow through larger ports. The inclusion of new trim valves raises mainline pressure, resulting in more precise gear engagement and smoother operation under heavy loads. This component is ideal for heavy-duty trucks that require reliable, high-performance shifting during demanding towing or hauling tasks.
Built with hand-lapped surfaces to prevent internal leakage, the BD Diesel Valve Body ensures a tight seal and consistent performance. Its proprietary governor piston dimensions contribute to the precise control of hydraulic pressures, while reduced friction materials extend transmission lifespan. The valve body is supplied with hardware and includes a return shipping label for a core exchange process, allowing for a seamless upgrade. This product is manufactured in accordance with rigorous standards to meet the demands of fleet and performance diesel applications, offering durability and long-term reliability.
Installation should follow proper procedures, including replacing related components such as the filter and fluid, to ensure optimal performance. This valve body is suitable for use in heavy-duty applications where improved shift quality, increased capacity, and extended transmission life are critical. It is not CARB approved and is intended for off-highway or non-road use only, with a core charge of 450 USD applicable for returned cores. The product is not stocked regularly and ships via standard freight channels.
Features:
- Heavy-duty performance with enhanced torque capacity for towing applications
- Premium friction materials for smooth and reliable engagement
- Enhanced thermal capacity to prevent slippage during severe duty
- Designed for long-term drivetrain reliability in demanding conditions
Fitment:
Chevrolet Silverado 2500 HD Base 2004 to 2005
Chevrolet Silverado 2500 HD LS 2004 to 2006
Chevrolet Silverado 2500 HD LT 2004 to 2006
Chevrolet Silverado 2500 HD WT 2004 to 2006
Chevrolet Silverado 3500 Base 2004 to 2005
Chevrolet Silverado 3500 LS 2004 to 2006
Chevrolet Silverado 3500 LT 2004 to 2006
Chevrolet Silverado 3500 WT 2004
Chevrolet Silverado 3500 WT 2006
GMC Sierra 2500 HD Base 2004 to 2005
GMC Sierra 2500 HD SL 2006
GMC Sierra 2500 HD SLE 2004 to 2006
GMC Sierra 2500 HD SLT 2004 to 2006
GMC Sierra 2500 HD WT 2004 to 2006
GMC Sierra 3500 Base 2004 to 2005
GMC Sierra 3500 SL 2006
GMC Sierra 3500 SLE 2004 to 2006
GMC Sierra 3500 SLT 2004 to 2006
GMC Sierra 3500 WT 2004 to 2006





















