HAPPIJAC 736515 Single 4820 Acme Heavy Duty Screw Jack

The 4220 and 4280 screw jacks features square tubing. These replacement jack legs are designed for HappiJac truck camper jack systems, and include an outer tube that has been zinc-plated and then powder-coated for superior corrosion resistance. It also has 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.This kit comes with a single screw jack designed for HappiJac truck camper jack systems. This is a replacement jack leg. Please see manufacturer's guide before purchase to ensure compatibility.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.Whether you’re on the road or on the water, Lippert supplies a broad array of premium RV, towing, and marine products designed to enhance all of your recreational pursuits. Our team is committed to always thinking about your next journey — pushing the possibilities of our products and services, all to better your time spent outdoors, whenever, wherever, for years to come.

• EXACT-MATCH - The replacement screw jacks are just like your original HappicJac equipment for a seamless installation
• DURABILITY - Outer tube has been zinc-plated and powder-coated for superior corrosion resistance
• STRENGTH - Available with either a 2,220 or 2,800 lb. lift capacity
• PROTECTIVE DESIGN - Wiper at the bottom of the jack helps prevent debris from getting into the jack leg
• EASY UPGRADE - All Happijac jacks have an electrical upgrade option for more efficient operation