The Wabco air brake chamber, part number 9253921090 or 925-392-109-0, is a Type 30/30 cam-operated air brake chamber built to OE specification. It delivers a maximum operating pressure of 145.0 psi and a release pressure of 66.72 psi, with a push-rod stroke of 2.99 in and a push-rod length of 3.55 in. The chamber measures 14.29 in in total length and mounts via 5/8"-11 UNC bolts spaced 4.75 in apart (bolt length 1.50 in). Port threading is 3/8"-18 NPTF at a 160-degree port angle, and the clevis pin diameter is 0.51 in. The unit is supplied without boot and is rated for an operating temperature range of -40 C to +80 C. Call us to confirm proper fit for your application.
Interchanges:
- WAB9253921090
Features
Type 30/30 cam-operated air brake chamber, OE specification
Max. operating pressure: 145.0 psi; release pressure: 66.72 psi
Stroke: 2.99 in; push-rod length: 3.55 in; total length: 14.29 in
Mounting bolts: 5/8"-11 UNC, 1.50 in length, spaced 4.75 in apart
Port thread: 3/8"-18 NPTF at 160-degree angle; clevis pin 0.51 in
Temperature rated -40 C to +80 C; supplied without boot
Tech Specs
- Brand: Wabco
- Type: 30/30
- Type of operation: Cam
- Technical specification: OE specification
- Max. operating pressure: 145.0 psi
- Release pressure: 66.72 psi
- Stroke: 2.99 in
- Push-rod length: 3.55 in
- Total length: 14.29 in
- Bolt threads: 5/8"-11 UNC
- Bolt length: 1.50 in
- Distance between bolts: 4.75 in
- Port thread 1: 3/8"-18 NPTF
- Port thread 2: 3/8"-18 NPTF
- Port angle: 160 degrees
- Clevis pin diameter: 0.51 in
- Temperature range: -40 C to +80 C
- Version: Without boot
