22-74370-000 Freightliner Cascadia Cab Extender Attachment Arm Kei Vehicle elongating the M6 nutsert hole

elongating the M6 nutsert hole in the fiberglass sleeper wall until the mount can no longer hold

587 Additional applications may apply

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

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

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 elongating the M6 nutsert holeThe 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