Keep your Ground Control automatic leveling system running right with a genuine Lippert replacement front jack leg. Part 305340 is the direct OEM front jack for Ground Control 5th wheel leveling systems and installs in either the left or right front leg position. The integrated Hall Effect sensor enables the precise position feedback your Ground Control controller depends on for consistent, repeatable auto-leveling performance.
If your Ground Control system is showing leveling errors, a leg that extends too slowly, or one that refuses to retract fully, the front jack assembly is often the culprit. Lippert part 305340 is the factory-spec front replacement leg, built to the same tolerances as the jack that came with your rig. It is not an aftermarket substitute -- it is the same part Lippert uses on the production line and in their service network.
This jack installs in the front leg position and is configured to work as either the left or right front leg, so a single part number covers both sides of your front axle area. The Hall Effect position sensor is already integrated into the assembly -- no separate sensor purchase required.
Integrated sensor provides accurate leg-position feedback to the Ground Control controller for precise auto-leveling cycles.
Each front jack is rated at 5,000 lb, matching the load demands of full-size 5th wheel trailers at the front corner positions.
One part number fits both the left and right front leg positions, simplifying ordering and reducing stocking complexity for service centers.
Factory-specification component -- not an aftermarket copy. Ensures full compatibility with Ground Control wiring harnesses and control modules.
Unlike older mechanical-switch designs, Hall Effect sensors use a contactless magnetic field to detect jack position. This eliminates the wear and corrosion failures common in mechanical limit switches. The Ground Control system reads these signals continuously, so a failed or degraded sensor causes leveling faults, incomplete cycles, or error codes on the controller display. Replacing the full jack assembly -- sensor included -- restores proper closed-loop operation.
This jack is designed specifically for Lippert Ground Control automatic leveling systems as installed on 5th wheel trailers. Ground Control systems are widely fitted on trailers from manufacturers including Forest River, Keystone, Grand Design, DRV, and others. Verify your system is Ground Control (not Ground Control 3.0 TT or a slide-out system) and check your existing jack's part number before ordering. The Lippert vendor cross-reference for this part is 71-3773.
Part 305340 is the front jack leg. Lippert Ground Control systems use different jack assemblies for the front and rear leg positions. Confirm which leg has failed before ordering. If your leveling system is throwing a specific leg fault code, note whether the controller identifies it as a front or rear position fault. Ordering the wrong leg position will result in a non-functioning replacement.