NHTSA Recall 08V144000: Check valve (service brakes)
MACK TRUCKS, INC reported this safety recall to NHTSA on , covering an estimated 218 vehicles. It affects 2006–2007 Mack Mr.
| NHTSA campaign | 08V144000 |
|---|---|
| Manufacturer campaign | SC0337 |
| Component | SERVICE BRAKES, AIR › SUPPLY › CHECK VALVE |
| Report received | March 26, 2008 |
| Owner notification | April 15, 2008 |
| Initiated by | Manufacturer |
Defect
Mack is recalling 218 my 2006-2007 mr trucks. A check valve was omitted from the secondary supply port of the sr-7 spring brake modulating valve.
Safety risk
As a result, an air leak in the secondary or primary system may result in the park brakes inadvertently applying, increasing the risk of a crash.
Remedy
Dealers will add a check valve to the secondary supply port of the sr-7 spring brake modulating valve and will also repair the sr-7 valve by applying a check valve repair kit as required for the bendix safety recall (please see 07e-037). The recall began on april 15, 2008. Owners may contact mack at 1-800-528-6586.
Notes
Mack recall no. Sc0337.customers may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to http://www.safercar.gov.
Vehicles covered by recall 08V144000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.