HALDEX HALDEX INVERSION RELAY VALVE Recall
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
HALDEX INVERSION RELAY VALVE
Brand
HALDEX
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
ZF North America, Inc. is recalling certain HALDEX INVERSION RELAY VALVE equipment due to service brakes, air issues. Delayed parking brake engagement can result in unintended vehicle movement, increasing the risk of a crash..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
ZF North America, Inc. (ZF) is recalling certain park brake actuation air brake systems equipped with Haldex inversion relay valves, part numbers 9718990020 and RKN28032. An internal piston in the inversion valve may fail, delaying the engagement of the parking brake. As such, these valves fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Reported concern (NHTSA)
Delayed parking brake engagement can result in unintended vehicle movement, increasing the risk of a crash.
Recommended Action
Per NHTSA guidance
ZF will replace aftermarket equipment, free of charge. Affected vehicle manufacturers will determine the appropriate remedy for their vehicles. Owner notification letters were mailed April 9, 2024. Owners may contact ZF customer service at 1-734-416-6200.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026