Keep your RV slide-out moving smoothly with the correct OEM-spec replacement roller. The Lippert 104474 is the rear plastic arm roller used in Lippert slide-out systems, allowing the slide arm to travel in and out with minimal friction and proper alignment. When this roller cracks, flattens, or goes missing, the slide arm can bind, gouge the substrate, or fail to seat correctly -- a direct replacement is the fastest fix.
The 104474 roller mounts at the rear position on the slide-out arm, supporting the arm as it extends and retracts. It is molded from black plastic and sized to fit the arm channel precisely. Using the correct part number matters here -- slide-out arm rollers are position-specific (front vs. rear) and diameter-specific, and the wrong size will cause the arm to bind or ride unevenly.
This is a direct Lippert OEM part, so there is no guesswork about fitment in systems that were originally built with Lippert slide mechanisms. It is especially common on travel trailers and fifth wheels from Forest River, Keystone, Coachmen, and other brands that source slide-out hardware from Lippert.
Designated rear arm roller -- do not substitute with front-position rollers. Position matters for proper arm geometry and slide alignment.
1.875 inches long by 1.48 inches in diameter -- compact profile fits within the arm channel without modification.
Molded black plastic resists corrosion and provides a low-friction rolling surface suited to the loads typical of RV slide-out arms.
Genuine Lippert part number 104474 -- matches the spec of the original installed roller so no adapting or trimming is needed.
Slide-out arm rollers take repeated compressive and lateral loads every time the room is extended or retracted. Over time, plastic rollers can crack from UV exposure or cold-weather brittleness, flatten from overloading or a stuck slide, or simply wear down from thousands of cycles. Once a roller fails, the bare arm metal contacts the track or substrate directly, which accelerates wear and can damage the slide-out floor or room frame.
Replacing a worn roller promptly is far less expensive than repairing a gouged track or warped arm. Keep a spare on hand if you full-time or travel frequently -- this is a small part with a big impact on slide operation.
Replacing the rear arm roller typically requires retracting the slide-out fully and, depending on the slide design, removing a retaining pin or clip that holds the roller on the arm shaft. Always consult your slide system's service manual for the specific disassembly sequence. Support the slide room if you need to remove the arm from the roller bracket during service.
This roller is widely used in travel trailers and fifth wheels across many brands that source slide-out hardware from Lippert Components. Common platforms include Forest River (Flagstaff, Rockwood, Cherokee, Cardinal), Keystone (Cougar, Montana, Outback), Coachmen (Apex, Catalina, Chaparral), Jayco, and others. If your rig's slide-out system carries a Lippert brand tag or if the original roller matches these dimensions and the Lippert 104474 part number, this is the correct replacement.