Volvo Air Brake Components

Volvo - 20437062 Trailer Brake Valve
Application: Designed specifically for Volvo VNL heavy-duty trucks and compatible Mack commercial vehicles.
Design: Usually features a 3-port configuration with an ergonomic handle. Premium or chrome options are available depending on the exact dash trim.
Function: Helps the driver control trailer slack and prevent jackknifing on slippery surfaces by providing proportional, manual pneumatic pressure to the trailer service lines.