Wilson HD Electrical Type Spring Brake Chamber

The Wilson HD Electrical Type Spring Brake Chamber is a combination air brake chamber for heavy-duty trucks, trailers and buses. It replaces a worn or damaged spring brake actuator, also called a spring brake or air brake chamber. It restores dependable service braking and parking/emergency braking.

How It Works:

• Service chamber: Compressed air pushes the diaphragm and pushrod to apply the brakes during normal driving.
• Spring (piggyback) chamber: A powerful internal spring applies the brakes for parking and emergency stops when air pressure is lost or released.

Key Features:

• Sealed spring brake design for use in air brake systems
• Combines service and parking brake functions in one assembly
• Built as a direct replacement for worn, leaking or damaged chambers
• Available in multiple types; choose by part number to match your application

Worn brake chambers can cause weak braking, air leaks or incomplete pushrod retraction. Regular inspection and timely replacement help keep commercial vehicle brakes working reliably.