NHTSA Recall 07V571000: Slack adjusters (service brakes)
FREIGHTLINER LLC reported this safety recall to NHTSA on , covering an estimated 31 vehicles. It affects 2 models including the Western Star 4900.
| NHTSA campaign | 07V571000 |
|---|---|
| Manufacturer campaign | FL-518 |
| Component | SERVICE BRAKES, AIR › SLACK ADJUSTERS |
| Report received | December 18, 2007 |
| Owner notification | July 31, 2008 |
| Initiated by | Manufacturer |
Defect
On certain heavy duty trucks built with sisu fr2p-21, sisu fr2p-26, sisu fr3p-33, or sisu fr3p-48 rear axles, a counter-bore machined in both ends of the worm wheel opening of the slack adjuster housing reduces material thickness between the worm wheel opening and the worm shaft opening. Under normal service a crack may develop in this area rendering the slack adjuster inoperable and reducing brake effectiveness.
Safety risk
Reduced vehicle braking could lead to a crash.
Remedy
Dealers will inspect the slack adjusters, and replace the adjuster if found defective. The recall began on july 31, 2008. Owners may contact freightliner at 1-800-547-0712.
Notes
Freightliner recall no. Fl-518.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 07V571000
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.