Rear slack adjuster cracking
Defect Summary
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 Consequence
Reduced vehicle braking could lead to a crash.
Corrective Action
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.
Similar Recalls
Other recalls from Freightliner Llc or involving Service Brakes, Air.
FAQ: Recall 07V571000
Your rights, the repair process, and what each field on this page means.
What is recall 07V571000?
NHTSA recall 07V571000 was issued by Freightliner Llc on December 18, 2007. It addresses: Rear slack adjuster cracking. The recall affects approximately 31 vehicles, with the defect involving the Service Brakes, Air component.
How do I get this recall repaired?
Contact any authorized Freightliner Llc dealer and reference NHTSA recall ID 07V571000 or the manufacturer campaign number FL-518. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.