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Crank Assembly 4141


This chain drive crank system is commonly located behind a rear body panel. This is the compression system and ratchet upper crank. When you turn the crank handle to the right, the brake engages within this unit. A chain then drives the lower lift and the roof raises.

Please note : Hard to raise roof issues are not fixed by replacing the crank assembly. This problem is typically caused by a failing thrust bearing. Please take a look at our products and video's covering hard to raise roof issues.

Videos available

Designed to weld onto the plate to replace the entire upper crank assembly. Remove the old upper crank, and re-weld this assembly back in place. A bushing located in the mounting plate for the drive shaft makes for an easy alignment and installation.

  • Mounting plate measures 4 inches by 4-1/2 inches.
  • Drive hub extension measures 4-1/4 inches in length as measured from the mounting plate.
  • The assembly complete measures 6 inches tall.

Chain drive gear has 22 teeth. Comes with drive hub extension with hardware pack installed.

Crank handles are available

Cordless drill crank adapters are available

Part number 4702-4141