BD Diesel

The BD RoadMaster E4OD Transmission is engineered for reliability and long-term peace of mind. Designed for stock or mildly modified Ford Super Duty trucks, the RoadMaster focuses on durability without compromising everyday drivability.

This transmission features a modified valve body that increases clutch pack torque capacity and improves converter charge pressure, resulting in more consistent shifts and improved towing performance. Cooling is enhanced with a BD Diesel deep aluminum transmission pan, which adds an extra 6 quarts of fluid capacity to help control temperatures under load.

Every RoadMaster E4OD transmission package includes a billet ProForce torque converter and is dyno tested prior to shipping, ensuring proper operation and dependable performance right out of the box. Built for towing, daily driving, and long-term reliability, the RoadMaster E4OD delivers proven BD Diesel quality you can trust.

Key Features:

• Increased clutch torque holding capacity for reduced slip while towing

• Deep aluminum transmission pan adds 6 quarts of additional fluid capacity to help maintain lower operating temperatures

• Billet ProForce torque converter for reliable converter clutch apply

• Stock clutch counts retained for OEM-style drivability

Core Charge Option 1: Customer to send in core to receive product

Core Charge Option 2: Additional payment is sent in, new products are delivered, additional payment is returned when core is received.

SEE CORE RETURN POLICY