When a worn or sheared roll pin causes your above floor slide-out idler box to bind, skip, or lose alignment, this is the exact OEM replacement you need. The Lippert 118174 is a precision-sized roll pin -- 1.25" long x 3/16" OD -- designed specifically for Lippert above floor rack-and-pinion style slide systems. Keeping genuine Lippert hardware in your slide mechanism ensures proper torque transfer, correct gear engagement, and reliable in-and-out operation mile after mile.
Lippert slide-out systems are among the most common found in production fifth wheels, travel trailers, and motorhomes. The idler box in an above floor slide system transmits drive force from the motor to the slide rail, and the roll pin is the small but critical fastener that locks the gear or shaft inside that box. A roll pin failure -- caused by corrosion, fatigue, or impact -- can render an entire slide inoperable or cause uneven extension.
Replacing only the failed roll pin rather than the entire idler box assembly is a cost-effective repair that most RV owners and technicians can complete with basic hand tools. The Lippert 118174 is sold as a single pin replacement and is the correct specification for the above floor idler box application.
1.25" length and 3/16" outer diameter match the factory specification for above floor Lippert slide idler boxes precisely.
Sourced directly from Lippert, so you get the correct hardness and spring tension of the roll pin -- not an undersized substitute.
Roll pin replacement requires a roll pin punch, hammer, and basic hand tools. No special equipment or slide teardown required in most applications.
Correct pin engagement returns proper torque transfer to the idler gear, eliminating skipping, binding, and uneven slide travel.
On Lippert above floor slide systems, the idler box is a gearbox assembly mounted beneath the RV floor that routes power from the slide motor to the rack on the slide room. The idler box contains a shaft and gear retained by one or more roll pins. When these pins fail, the gear spins freely on the shaft without transferring drive -- the slide motor runs but the room does not move, or moves on only one side.
This style of slide system is found on a wide range of coach brands built with Lippert components, including many Forest River, Coachmen, Keystone, Heartland, and Jayco units. If you are unsure whether your coach uses an above floor system versus an under floor or through floor system, check whether the rack (toothed bar) that the slide rides on is visible above the main floor deck when the slide is extended.
Roll pin replacement on a Lippert idler box is typically a straightforward bench repair once the idler box is removed from the coach: