Keep your RV slide-out sealed tight in both the extended and retracted positions. The Lippert 122840 stop can assembly gives you a simple mechanical method to fine-tune seal contact, protecting the interior from rain, road wash, and hose-down water intrusion -- no special tools required.
A misaligned slide-out seal is one of the most common causes of water damage in RVs. The Lippert 122840 stop can assembly solves that by letting you physically adjust where the slide-out stops relative to the seal. Rotate the stop can tube in or out to dial in the correct seal compression, then lock the position by tightening the retaining nut. The result is consistent, repeatable seal contact every time the slide operates.
This replacement assembly is compatible with Lippert above-floor and through-frame slide-out systems -- two of the most widely used slide-out architectures in towable and motorized RVs. The kit includes one stop can tube and one stop can plug, giving you everything needed to restore proper function to a worn or damaged stop can location.
Rotate the tube in or out to set seal compression, then tighten the nut to lock it in place. No guesswork, no shimming.
Includes one stop can tube and one stop can plug. Steel construction handles repeated slide cycling without deforming.
Fits Lippert above-floor and through-frame slide-out systems used across a wide range of RV brands and floor plans.
Straightforward swap with basic hand tools. No special equipment or alignment fixtures required for installation.
The stop can is a mechanical stop component mounted in the slide-out system that controls how far the room travels when retracting. It creates a fixed reference point so the slide-out seal compresses the same amount each time the room closes. Over time, stop cans can corrode, deform from impacts, or simply wear to the point where seal contact becomes inconsistent. When that happens, you may notice water entry along the slide-out perimeter, visible gaps in the seal when the room is retracted, or increased wind noise at highway speed.
Replacing the stop can assembly restores the original mechanical reference, re-establishing proper seal compression without the need to adjust the entire slide-out mechanism.
Installation is a direct mechanical swap. The general process involves: