Fifth Wheel Jaw Kit
The HME ASF-4000644 Fifth Wheel Jaw Kit is designed to restore secure kingpin locking in fifth wheel couplings. Built for durability and a precision fit, this replacement kit helps reduce coupling play and supports safer trailer connections. Ideal for maintenance and rebuilds, it improves locking performance and dependable operation in heavy-duty trucking applications. Use it when jaws are worn, damaged, or no longer hold the kingpin correctly, helping extend fifth wheel service life.
$313.19
Specifications
The ASF-4000644 Fifth Wheel Jaw Kit from HME is a critical replacement component for maintaining safe and reliable fifth wheel operation. Fifth wheel jaws experience constant stress and wear during coupling and uncoupling, which can compromise secure kingpin engagement over time. This jaw kit is engineered to restore proper locking performance and durability in Simplex-style fifth wheels. Manufactured to meet heavy-duty demands, it helps reduce downtime, improve safety, and extend the overall service life of the fifth wheel assembly. Available from Wofford Truck Parts.
Weight
14
Compatibility
Freightliner (1990–Present)
Kenworth (1985–Present)
Peterbilt (1985–Present)
International (1990–Present)
Volvo Trucks (1995–Present)
Mack Trucks (1990–Present)
Kenworth (1985–Present)
Peterbilt (1985–Present)
International (1990–Present)
Volvo Trucks (1995–Present)
Mack Trucks (1990–Present)
Alternative Part Numbers
HME ASF-4000644
SAF-Holland 4000644
Simplex Fifth Wheel Jaw Kit
SAF-Holland 4000644
Simplex Fifth Wheel Jaw Kit
