Precise Compatibility - Direct replacement for GT Development 26503-1, GTD-26503-1, and compatible with Freightliner trailer brake systems with 3-way configuration.
Robust Design & Reliable Ports - The 26503-1 trailer brake valve features 2x 3/8" push-in ports and 1x 1/4" push-in port; ensures seamless air connection for smooth and efficient braking control.
Enhanced Braking Performance - Synchronizes trailer and tractor braking for safer stops, minimizing jackknife risks and optimizing braking efficiency on heavy-duty applications.
Quality, Tested Construction - Manufactured to meet or exceed OEM standards; fully inspected for precise fitment, leak-free operation, and long-term durability under rigorous conditions.
Fast Installation & Trusted After-Sales - Accurate sizing allows easy drop-in installation; backed by responsive customer service support for any questions or concerns post-purchase.