OEM-matched replacement actuator for Lippert electric through-frame slide-out systems. Engineered specifically for 2x2 and 2.5x2.5 tube configurations, this 24-inch actuator restores full slide-out function with the correct gear ratio and motor pairing your system was designed around.
When a slide-out actuator fails -- whether from worn gears, a seized motor, or bent internal components -- the room stops dead, often extended or retracted at the worst time. Lippert part 119128 is the correct OEM-replacement actuator for through-frame electric slide-out systems using 2x2 or 2.5x2.5 structural tubes and the 18:1 Venture motor configuration.
Matching the gear ratio to your existing drive system is critical. Installing an actuator with the wrong ratio causes the control board to fault, stresses the motor, and can damage the rack. The 18:1 Venture motor in this unit is the factory-spec ratio for the slide-out systems it serves -- no modification or reprogramming required when replacing like-for-like.
Full 24" actuator stroke matches factory specification for compatible through-frame slide-out rooms.
OEM-matched gear ratio ensures proper speed, torque, and compatibility with existing Lippert control boards.
Designed for Lippert electric through-frame systems using 2x2 and 2.5x2.5 structural tube sizes.
Replaces original Lippert 119128 actuator assembly. No system modification required.
Lippert through-frame slide-out systems route the actuator rod through the RV frame itself, using the structural tubes as guides and reaction points. This design is common on mid-size to large slide-out rooms where a robust, high-force linear actuator is needed. The actuator assembly mounts to the slide-out mechanism and drives the room in and out via the motor-driven lead screw.
Because the actuator is integrated into the frame path, correct tube sizing compatibility (2x2 or 2.5x2.5) is required for proper engagement and seating. Installing an actuator designed for a different tube profile will result in improper fit and potential binding.
The 18:1 ratio in this Venture motor is calibrated for the load and travel speed of the slide-out rooms it was designed to move. Swapping in a different ratio -- even if the actuator physically fits -- changes room travel speed and current draw, which can trigger control board faults or cause premature motor failure. Always replace with the same ratio as the original unit.
Before ordering, confirm your system uses the Lippert through-frame electric slide-out design with the 18:1 Venture motor. Key identifiers:
If you are unsure of your system type, locate the Lippert tag on the slide-out mechanism (typically affixed to the actuator housing or nearby frame rail) and match the part number before ordering.
This actuator is rated for use with 2x2 inch and 2.5x2.5 inch Lippert through-frame slide-out tube configurations. It is not intended for rack-and-pinion, hydraulic, or cable-driven slide-out systems. Confirm your tube size before installation to ensure proper fit and engagement.
When removing a failed actuator, the slide-out room loses its mechanical support. Always use appropriate blocking or a slide-out support system to hold the room in place before disconnecting the actuator. Failure to support the room during removal can result in the room shifting suddenly, causing injury or structural damage.