4" Standard Crank

HappiJac® Truck Camper Jack Systems

When it comes to replacement parts for you HappiJac® truck camper jack system, Lippert™ has you covered. Our exact-match manual crank will help you get your truck camper's jack system up and running like usual. Happijac® Screw Jacks have a 1,500-2,800 lb. capacity per jack. HappiJac Jacks include an outer tube that has been zinc plated and then powder coated for superior corrosion resistance. They also have a wiper at the bottom of the jack to help prevent debris from getting into the jack leg, and a zinc plated inner leg. All Happijac jacks have an electrical upgrade option and have a one year warranty.

What's Included:

Replacement manual crank for HappiJac camper jack systems. Standard 4" or long 8" cranks available.

HappiJac®

For more than 50 years, HappiJac has been producing high quality products for the RV industry. HappiJac conducts extensive research and testing to develop quality products backed by sound engineering. HappiJac leads the industry in fully upgradeable camper jacks, space-efficient room slides and the only camper tie down system that effectively controls camper movement in all directions. From bed lifts and slide-outs to tie downs, jacks and toolboxes, we have the solution for your RV needs.

Parts You Can Trust.

Our team at Lippert knows that having broken, worn, or malfunctioning RV or camper equipment can put a damper on even the greatest weekends of camping. That’s why we’re committed to providing our customers with the replacement parts and equipment needed to get your RV off the sidelines and back into the great outdoors.