This guide is for Lippert 2×2-inch electric through-frame RV slide-out systems. The 2×2 rail and rack-drive mechanism is not the same as the larger 2.5×2.5 or Schwintek in-wall system. Identify the rail size and drive style before ordering an actuator, gear pack or drive shaft.
For the true shape, location and order of assembly components, open Lippert's official 2×2 through-frame technical library. It includes separate 2×2 electric slide-out component references. See the manufacturer's current electric through-frame owner manual and electric through-frame service manual for operating and safety requirements.
Use the layout below to identify the drive, rails, gear pack and electrical components. Confirm the replacement against Lippert's model-specific parts drawing.
Electric drive or actuator motor and matching gearbox. Identify original gearing, voltage and actuator length.
Inboard/outboard telescoping arms, rack teeth, drive shaft and 2×2-specific gear pack.
Wear tabs, pads, rollers or stop hardware depend on the actual arm generation.
In/out switch, motor wiring and electrical protection. Identify the existing switch before buying.
Lippert lists 281331 as a 15-tooth gear-pack assembly supplied without roll pins. Earlier slide-out versions may use an 18-tooth gear, so compare the existing gear before ordering. Part 296090 is an outboard inner tube assembly with gear rack, not a drive shaft; the current replacement does not include a roller. Check the original rail, tooth arrangement and mounting before replacing it.
The factory 2×2 electric through-frame illustrated list is in Lippert CCD-0001613: printed page 12 shows 2×2 gear-pack callouts A–G, page 15 shows tube assemblies V–Y (including 296090 at X), page 18 covers Venture drives, and page 20 shows cross-shafts. Choose the drawing for the original 2×2 rail and drive configuration before selecting a replacement.
Gear pack reference
Lippert 15-tooth gear-pack assembly for the matching 2×2 through-frame system. Roll pins are not included. Check the original rack geometry and tooth count.
Identify this as the complete 281331 gear-pack assembly, not just a loose spur gear.
Inner-tube reference
Lippert's replacement 296090 is a 72-inch, 2 × 2-inch outboard inner tube with gear rack; a roller is not included. Check the tube dimensions and mounting arrangement before replacement.
Check the original part number before ordering.
Actuator reference
Motor for the specified 18:1 actuator generation. Do not swap with 28:1 versions based only on connector or housing.
View matching product listingActuator reference
Distinct speed ratio; confirm original gearbox and motor label.
View matching product listingControls reference
Match controller and motor wiring before selection. A switch listing is not proof of compatibility with every system.
View matching product listingGear pack reference
A separately packaged branded 2×2 15-tooth option. Check pin requirements and gearbox/rack application.
View matching product listingA 2×2 gear pack is not interchangeable with standard 2.5×2.5 324869 or heavy-duty 2.5×2.5 123356 based merely on tooth count. The rack pitch and pressure-angle specification must match the actual system. Check the original Lippert identification label, rail dimensions, actuator gear ratio, serial number and factory part drawing.
For the larger mechanism, see the 2.5×2.5 through-frame slide-out reference.
Slide rooms are heavy, and rack/gear assemblies present pinch hazards. Disconnect the power supply and support the room in accordance with the manufacturer's procedure. Do not release a loaded actuator or work underneath an unsupported slide room. The information here is for identification, not a structural repair procedure.
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