MARSHALL brake chambers and spring brake chambers for trucks and trailers
Service brake chambers and spring brake chambers in all popular sizes, with a reinforced cover and steel pressure plate.

About the line
Definition
Brake chambers: Actuators that turn compressed air into braking force. A spring brake chamber adds a strong spring that applies the brake for parking and in an emergency.
Made on CNC equipment and automatic assembly lines, with PLC control of strength, tightness and static properties. Lab tests also cover environmental effects and rig loads.
Made at partner plants to MARSHALL drawings. Warranty: 5 years on almost all MARSHALL parts.
Fitment
European and American trucks, trailers and semi-trailers
What goes into it
- 01
Reinforced cover
An extra steel plate stops bolts tearing out. Cover problems cause 87% of chamber failures.
- 02
Steel pressure plate
Steel instead of aluminium: the disc hole does not wear, push rod kinematics stay true.
- 03
Rust protection
Electrodispersion treatment of the chamber against rust.
- 04
Diaphragms
From the plant that makes diaphragms for WABCO and Knorr-Bremse.
- 05
Tested
Every brake chamber is tested for tightness.
Technical data
- Range
- 100+ types
- Types
- Service brake chambers, spring brake chambers
- Vibration test
- Shaker, 0 to 100 g
- Corrosion test
- Housing in salt-spray chambers
- Tightness
- Every chamber tested
- Warranty
- 5 years · terms
Part numbers on request
Send your OE numbers or vehicle: a manager replies with the MARSHALL brake chambers that fit, stock and lead times.
Get the MARSHALL catalogue
Leave your name, company, phone and e-mail. A named manager replies within one working day.






