A direct-replacement outboard inner tube assembly for Lippert slide-out systems. Sized at 2" x 2" with a 72" length and designed specifically for 15-tooth gear mechanisms, this tube assembly is the structural backbone of your slide-out's travel path. If your existing tube is bent, worn, or corroded, this OEM-spec replacement restores smooth, reliable slide operation.
Lippert slide-out systems are among the most common found in production RVs from manufacturers including Forest River, Coachmen, Keystone, Thor, and many others. The outboard inner tube is the inner rail that travels within the outer tube housing during slide extension and retraction. When this component develops play, corrosion, or physical damage, slide performance deteriorates quickly -- leading to binding, uneven travel, or complete failure.
Lippert part 296090 is the 2" x 2" outboard inner tube assembly at 72" in length, specified for use with the 15-tooth gear drive. This is a tube-only assembly -- no roller is included. Verify your existing system uses the matching gear count and tube cross-section before ordering.
Designed and built to Lippert specifications for direct replacement in compatible slide-out systems. No modification required when tube size and gear count match.
Square tube profile matches the original outboard inner tube geometry, ensuring proper fit within the outer tube housing and consistent slide travel.
Full 72-inch tube length suits common mid-to-large slide-out rooms. Match this dimension to your existing tube before purchasing.
Specified for use with 15-tooth gear drive assemblies. Using this tube with a different gear tooth count may result in improper rack engagement.
Because this is an OEM Lippert part, it matches the original material thickness, surface treatment, and dimensional tolerances of the tube it replaces. Aftermarket alternatives often require trimming or adaptation.
Measure the cross-section of your existing inner tube with calipers -- both dimensions should measure 2" x 2". Also confirm tube length along the full travel axis and verify the gear tooth count stamped on your drive gear or listed on your slide-out system's data plate. Lippert slide-out systems are also identified by a model number typically found on a label inside the slide room or on the chassis rail near the mechanism.
This assembly does not include a roller. If your slide-out system requires a roller at the outboard tube end, that component must be sourced separately. Inspect your existing assembly before ordering to determine whether a roller is part of your configuration.