When wiring runs, plumbing lines, or frame obstructions prevent your power stabilizer jacks from sitting flush, this bolt-on spacer kit creates the clearance you need -- without modifying your frame or jack hardware. Two spacers per side, four total, built from heavy-gauge powder-coated steel that handles road vibration and outdoor exposure without rusting out.
Lippert part 673594 is the factory-matched solution for raising power stabilizer jacks when the standard mounting position puts the jack foot too close to wiring harnesses, water lines, or other chassis components. Rather than rerouting plumbing or rewiring around the jack, you stack the double spacers between the jack mounting bracket and the frame rail -- moving the entire jack assembly down and away from the obstruction.
This kit fits three of the most common Lippert power stabilizer jack assemblies (369774, 298707, and 337199), making it a practical choice for a wide range of travel trailers and fifth wheels equipped with Lippert's electric stabilizer system. Installation is a bolt-on process using existing hardware points -- no welding, no drilling.
Mounts using existing jack hardware points. No welding, no new holes required.
Thick steel construction handles the load demands of stabilizing a fully loaded RV.
Black powder coat resists rust and corrosion through seasons of outdoor use.
Includes 4 double spacers -- 2 per side -- so both sides of the rig get matched clearance.
Power stabilizer jacks on travel trailers and fifth wheels mount directly to the frame rail. On some builds, that location conflicts with wiring loom runs, fresh or gray water plumbing, or aftermarket add-ons routed along the frame. The double spacer kit physically relocates the jack foot lower, giving those components breathing room and protecting them from contact with the jack mechanism during deployment and retraction.
It is also used when a previous owner or dealer has rerouted components and the jack now contacts an obstruction that was not there at the time of manufacture. Installing the spacers is faster and cleaner than re-routing lines.
This spacer kit is engineered specifically for the following Lippert power stabilizer jack part numbers:
If your RV came from the factory with Lippert electric power stabilizers and you are unsure of the jack part number, check the label on the jack motor housing or cross-reference your RV's build sheet. Lippert's customer service line can also confirm compatibility by VIN.
Installation is a straightforward bolt-on process that most RV owners can complete with basic hand tools. General steps: