The Wabco air brake chamber part number 9254222250 or 925-422-225-0 is a Type 30/30 dual-diaphragm air brake chamber assembly built to OE specification. It operates via S-cam actuation and delivers a maximum output force of 32,585.30 lbf at a maximum operating pressure of 147.94/123.28 psi. Stroke measures 2.56/2.56 in, total length is 11.93 in, and the push-rod length is 2.13 in. The unit ships with a welded yoke and a protective boot. Port threads are 3/8"-18 NPTF and M22 x 1.5. Two M16 x 1.5 mounting bolts are spaced 4.75 in apart. The rated temperature range is -40°C to +80°C. Call us to confirm proper fitment for your specific chassis or axle configuration.
Features
Type 30/30 dual-diaphragm air brake chamber, cam-operated
Stroke: 2.56/2.56 in; total length: 11.93 in
Maximum output force: 32,585.30 lbf at up to 147.94/123.28 psi max operating pressure
Port threads: 3/8"-18 NPTF and M22 x 1.5
Mounting: 2 x M16 x 1.5 bolts, spaced 4.75 in apart
Welded yoke, with protective boot; rated -40°C to +80°C
Tech Specs
- Brand: Wabco
- Type: 30/30
- Type of operation: Cam
- Technical specification: OE specification
- Stroke: 2.56 / 2.56 in
- Total length: 11.93 in
- Push-rod length: 2.13 in
- Clevis pin: 0.55 in
- Yoke: Welded
- Version: With boot
- Output force: 32,585.30 lbf
- Max. operating pressure: 147.94 / 123.28 psi
- Release pressure: 73.97 psi
- Return-spring force: 56.20 lbf
- Port threads: 3/8"-18 NPTF; M22 x 1.5
- Bolt threads: 2 x M16 x 1.5
- Bolt length: 1.30 in
- Distance between bolts: 4.75 in
- Temperature range: -40°C to +80°C
- Overall dimensions: 417 x 228 x 223 mm
