22-74370-000 Freightliner Cascadia Cab Extender Attachment Arm Kei Vehicle Works as a matched set

Works as a matched set with companion bracket — both part numbers are required to complete the understep reinforcement assembly

The A33-1266-100BP is a fairing reinforcement bracket for the Kenworth T680 Next Gen (2022 and newer)

One 22-73952-000BP short lower cab extender attachment arm

587 Additional applications may apply

A thickened mating face on each draws its joint tight under torque and closes out the play that invites vibration

22-74370-000 Freightliner Cascadia Cab Extender Attachment Arm Kei Vehicle Works as a matched setThe 22 74370 000BP is a direct replacement for the OEM 22 74370 000 long lower cab extender attachment arm on the Freightliner Cascadia, installing at the factory mounting points with no drilling or modification. The original arm carries a recognized weak point. Its loose factory fit allows the joint to work free over time, elongating the M6 nutsert hole in the fiberglass sleeper wall until the mount can no longer hold. The cab extender panel begins