A direct-fit replacement motor for Power Gear rack-and-pinion slide-out systems. This assembly ships with the protective boot and drive pin already included -- so you have everything needed to restore full slide-out function without hunting for separate hardware.
A failed or sluggish slide-out motor is one of the most disruptive problems an RV owner can face on the road. The Lippert 387738 is a factory-spec replacement motor designed for the popular Power Gear rack-and-pinion slide-out mechanism found on a wide range of fifth-wheels, travel trailers, and motorhomes.
The double-shaft design allows the motor to drive the slide-out rack from either side of the gearbox, which is the correct configuration for this mechanism. The included boot protects the output shaft and gear interface from road debris, moisture, and lubricant loss -- a common failure point when boots crack or go missing over time. The drive pin is also pre-included so installation does not require sourcing additional small parts.
Drives the rack from both sides of the motor housing, matching the original Power Gear layout exactly.
Built to handle the full load of large, heavy RV slide-out rooms under normal extending and retracting cycles.
Protective shaft boot and drive pin ship with the motor -- no separate hardware order required for installation.
Sold under the Lippert Components brand, the parent company of Power Gear, ensuring correct fit and engineering spec.
Power Gear (now a Lippert brand) produces one of the most common RV slide-out mechanisms on the market. The rack-and-pinion system uses a toothed gear driven by this electric motor to push and pull the slide-out room along a fixed rack. The motor mounts to a bracket on the slide frame and is powered by the coach 12V DC system through a slide-out controller.
Over time, motors can fail from moisture intrusion, worn brushes, or overload events (attempting to extend or retract with the slide binding). When the motor fails, the room typically becomes stuck in or out. Replacing the motor -- rather than the entire mechanism -- is the standard and most economical repair.
The motor connects to the existing Power Gear wiring harness via the coach slide-out controller. The controller supplies 12V DC and reverses polarity to extend or retract. No additional controller is required if the existing controller and switch are functional. Verify the controller is not the source of the failure before replacing the motor.
Motor replacement on a Power Gear rack-and-pinion system is a common DIY repair for mechanically comfortable RV owners. General steps include:
Power Gear has produced multiple slide-out motor variants. Verify your existing motor matches the double-shaft configuration (output shaft on both ends of the gearbox). Single-shaft motors use a different part number. Check the label on your existing motor or the slide-out mechanism documentation for your coach to confirm 387738 is the correct replacement.