Shop quality bobtail proportioning valves at Chrome and Parts for commercial trucks and semi trucks.
These air brake components are designed for bobtail and other commercial truck braking applications where proper air pressure control is important.

Our selection includes bobtail valves, proportioning valves and related air brake valve applications for commercial truck air systems.
You can also find LQ-5 and LQ5 valve applications and other valve configurations designed for specific heavy-duty air brake systems.

A bobtail proportioning valve can be an important component in a truck's air brake system when operating without a trailer.
When replacing a valve, it is important to match the replacement to the existing brake system, valve configuration and application.

Product configurations can vary by valve type, ports, fittings, pressure specifications and application.
Check the individual product listing for part numbers, specifications and application information before ordering to help ensure you select the correct replacement valve for your truck.

Whether you need a bobtail proportioning valve, LQ-5 valve or another commercial truck air brake valve, Chrome and Parts makes it easy to find the component you need.
Browse our selection of bobtail proportioning and related air brake valves for your commercial truck application.