9253920690 is a genuine Wabco double diaphragm brake part. In general, a double diaphragm unit combines service braking with a spring-applied parking brake in one compact body, so a single assembly covers both jobs. These units come in different sizes and port layouts, so check your existing unit and call us to confirm proper fit before you order. Pro Gear and Transmission sells it as a genuine Wabco part.
Features
Wabco double diaphragm design
Brake part
Combines service braking and a spring-applied parking brake in one body (double diaphragm style)
Genuine Wabco part
