Heavy-duty ST-4 safety pop off valve designed to help protect air brake systems by automatically relieving excess air pressure. Ideal for commercial trucks, trailers, and other heavy-duty air brake applications.
Direct replacement for Bendix 131081, Haldex KN31526, Meritor R955131081N, Cummins 3559097, and Cummins 3403479.
Calibrated to open at 250 PSI, helping prevent excessive pressure buildup that can damage air reservoirs, compressors, and other air brake system components.
ST-4 safety pop off valve with a 250 PSI pressure setting and a standard 1/2-inch NPT threaded connection for compatibility with many heavy-duty air brake systems.
Manufactured from corrosion-resistant brass for long-lasting durability and dependable performance in demanding commercial vehicle environments.
Suitable for use on compatible heavy-duty truck and trailer air brake systems requiring an ST-4 style 250 PSI pressure relief valve.
| Brand | Reference Numbers |
|---|---|
| Automann | 170.131081 |
| Euclid |
EBN131081N, |
| Meritor |
R955131081N,R955131081, |
| Volvo | 3969352 |
| Bendix |
109914, |
| Chelsea | 800154 |
| Fleetcraft | FC131081 |
| Fleetrite | FLTBV081 |
| Freightliner | BW131081,FUL 81012 |
| Genuine Newstar |
S‑C645, |
| Mack | 745‑131081 |
| Match Made Parts | ACA‑0546C700 |
| MCI | 4L‑17‑3 |
| OE Aftermarket |
700154, |
| PAI |
5238, |
| Power Products | 131081P |
| Rockwell International | EBN131081N |
| Tectran |
14490, |
| Longest Side | 0.00" |
| Median Side | 0.00" |
| Shortest Side | 0.00" |
| Weight | 0.00 lbs |