Reach New Heights: Proform Performance 800i Incline Motor
Is your treadmill stuck in a "flat" routine, or do you hear a clicking sound when you try to change elevations?
The Proform Performance 800i is built for variety, but that variety depends on a functioning incline system. If your treadmill refuses to move from a specific grade or gives you a calibration error, the incline motor (Part #338870 / 344840) is likely the culprit. Our Genuine OEM Replacement Incline Motor is a high-torque, industrial-grade linear actuator designed to restore the full -2% decline to 10% incline range that makes the Performance 800i a favorite for iFit mountain climbs and distance training.
Precision Vertical Calibration
The Performance 800i relies on a precise "counts" sensor within the motor to tell the console exactly what elevation it’s at. This OEM motor is pre-calibrated to work with the Proform console architecture, ensuring your on-screen metrics match your actual deck angle.
Heavy-Duty Lift Capacity: Engineered with a high-ratio gearbox to lift the 20" x 60" deck smoothly and quietly, even under a 315-lb load.
Quiet-Glide Technology: Features a precision-threaded screw drive that eliminates the grinding and squealing often found in worn-out or generic actuators.
Integrated Sensor Logic: Includes the internal potentiometer (sensor) required for the treadmill to "know" its home position, preventing the "over-travel" errors that can jam the mechanism.
Corrosion-Resistant Coating: The drive screw and housing are treated to resist the moisture and salt from sweat, preventing the seizing that kills most incline motors.
Why Replace Your Incline Motor?
When an incline motor fails, it often "seizes" at a high angle, making the treadmill difficult to use or even store. A failing motor can also blow the Motor Control Board (MCB) by drawing too much current as it struggles to turn. By installing a Genuine Proform Incline Motor, you protect your electronics and restore the functionality of your iFit "Automatic Trainer Control," where your incline adjusts automatically to the terrain on your screen.
The Real-World Repair: What to Expect
Replacing the incline motor on a Performance 800i is a mechanical task that requires about 45 to 60 minutes. Because the motor is located under the front of the machine, you will need to:
Lower or Support the Deck: Safely support the treadmill frame so it doesn't drop when the old motor is removed.
Access the Base: Remove the motor hood and potentially tip the machine on its side to reach the mounting pins.
Calibrate: After installation, a simple "Calibration" sequence from the console settings will sync the new motor to the board.
Get back to the climb and keep your training on track.
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