Keep your RV slide-out gliding smoothly with the Lippert J-38 Roller Assembly. Designed specifically for Lippert in-wall slide-out systems, this replacement roller uses a nylon wheel mounted to a solid steel plate to reduce friction and support reliable slide operation for the long haul.
The J-38 is a direct-fit roller assembly for Lippert in-wall slide-out mechanisms -- the type commonly found in a wide range of towable and motorized RVs built with Lippert slide systems. When the factory roller wears out or cracks, slide-outs can bind, drag, or move unevenly. Replacing the roller assembly is one of the fastest, most cost-effective slide-out repairs you can make yourself.
The nylon roller is purpose-built for low-friction travel along the slide track, while the solid steel mounting plate provides the structural rigidity needed to support repeated in-and-out cycling under load. At under half a pound, it is easy to handle during installation.
Hard-wearing nylon construction reduces friction and resists corrosion, keeping the slide channel running cleanly over years of use.
The roller is permanently attached to a heavy-duty steel mounting plate for a stable, wobble-free installation in the slide track.
Engineered for Lippert in-wall slide-out systems. Also cross-references as Keystone RV part number 489896 for owners sourcing from the OEM side.
Measures 4-5/8" x 1-3/4" x 1-1/16" and weighs only 0.49 lbs -- easy to store as a spare and straightforward to swap in the field.
Lippert in-wall slide-out systems route the slide mechanism through the wall of the RV rather than underneath the floor. The roller assembly sits within this track and bears the load of the slide room as it travels in and out. Over time, nylon rollers can flatten, crack, or develop flat spots -- especially in rigs that cycle the slide daily or park in extreme temperatures. A worn roller is often the first sign of a slide that is becoming harder to operate or making noise during travel.
This roller is suited to Lippert in-wall slide systems across a broad range of RV brands that source their slide mechanisms from Lippert Components -- including many Keystone, Forest River, Coachmen, and Heartland models. If your RV uses a Lippert in-wall slide and the existing roller matches the J-38 profile and dimensions below, this is the correct replacement.
Replacement of the J-38 roller typically requires retracting the slide fully, accessing the roller mounting location within the wall slide channel, removing the fasteners securing the old steel plate, and bolting the new assembly in place. No special tools are required beyond standard hand tools. The roller itself is pre-installed on the plate -- no assembly needed out of the box.