The BD Diesel Valve Body (Part # 1030410) is engineered to optimize transmission performance for Dodge 518 models from 1991 to 1993. Designed specifically for heavy-duty towing and fleet applications, this modified valve body improves shift quality, clutch engagement, and overall transmission durability. It features a proprietary governor piston, larger oil ports, and new springs to enhance oil flow and pressure, resulting in smoother shifting and increased clutch holding capacity. The anti-shuttle technology and revised valve design help reduce internal transmission shudder and extend service life, making it a critical upgrade for high-performance diesel trucks.
This valve body is carefully tuned and tested to deliver reliable, high-quality operation under demanding conditions. It includes all necessary hardware and a return shipping label for the core, with a $250 core charge applicable. The product is built with hand-lapped surfaces to prevent internal leakage, and new trim valves increase mainline pressure for better power transfer. Designed for easy installation, this component is a direct replacement for factory units, ensuring seamless integration with your existing drivetrain. Whether you’re upgrading for towing capacity, durability, or performance, the BD Diesel Valve Body provides a significant upgrade over stock components.
Manufactured by BD Diesel, a leader in diesel performance components since 1985, this valve body reflects their commitment to quality and innovation. It is not CARB compliant and is intended for off-road or racing use only, adhering to all relevant regulations. Proper installation and adherence to the manufacturer’s break-in procedures are recommended to maximize the benefits of this performance upgrade, ensuring long-term reliability and optimal transmission operation.
Features:
- Heavy-duty diesel and fleet torque capacity enhances durability under demanding conditions
- Premium friction materials ensure smooth, precise engagement and shift quality
- Enhanced thermal capacity prevents clutch slippage during severe towing or high loads
- Long-term drivetrain reliability through proprietary design and rigorous testing
Fitment:
Dodge D250 Base 1991 to 1993
Dodge D350 Base 1991 to 1993
Dodge W250 Base 1991 to 1993





















