Wabco 9253840280 is a double diaphragm brake part, sold by Pro Gear and Transmission as a genuine Wabco part. In an air brake chamber, a flexible diaphragm moves under air pressure and drives the pushrod outward to apply the brake; when the air is released, the spring brings the pushrod back to the released position. A leaking diaphragm lets air escape and weakens that brake, and a fully ruptured one leaves it with no effect. Call us with your chamber details and we will help confirm this is the right one.
Features
Wabco double diaphragm brake part, part number 9253840280
The diaphragm moves with air pressure to drive the pushrod and apply the brake
A diaphragm leak shows up as air loss and weaker braking
A genuine Wabco part from Pro Gear and Transmission
