# NordicTrack 831.29894 Elliptical RPM Speed Sensor (SS339)

## Product Introduction

The NordicTrack 831.29894 Elliptical RPM Speed Sensor (SS339) is a replacement speed-sensing component for a compatible NordicTrack elliptical. It detects the machine’s rotating movement and provides RPM speed information to the equipment’s control system. If your elliptical has a faulty, damaged, or missing speed sensor, this part may help restore accurate speed detection and normal sensor operation.

This product carries the NordicTrack brand and is identified by part number and SKU \*\*SS339\*\*. The product listing names it specifically for the \*\*NordicTrack 831.29894 elliptical\*\*.

## Product Details and Benefits

The SS339 is an \*\*elliptical RPM speed sensor\*\*. Its main function is to sense rotational speed within the exercise machine. The sensor supports the equipment’s ability to monitor movement while the elliptical operates.

A functioning RPM sensor helps the machine receive speed-related information from the moving mechanism. When the original sensor stops working correctly, the elliptical may not detect movement as expected. Replacing the sensor with a matching part can help address a sensor-related fault without replacing the entire machine.

This part is useful for customers repairing or maintaining a NordicTrack elliptical and for technicians sourcing a specific replacement component. Its clearly identified part number makes it easier to compare the replacement with the component currently installed in your equipment.

\### Product Identification

\- \*\*Brand:\*\* NordicTrack  
\- \*\*Product name:\*\* 831.29894 Elliptical RPM Speed Sensor  
\- \*\*Part number:\*\* SS339  
\- \*\*SKU:\*\* SS339  
\- \*\*Barcode:\*\* SS339  
\- \*\*Product type:\*\* RPM speed sensor  
\- \*\*Equipment type:\*\* Elliptical exercise machine  
\- \*\*Store category:\*\* Treadmill Sensors

The product page does not provide dimensions, material, color, package quantity, warranty details, or installation instructions.

## Compatibility and Applications

The NordicTrack SS339 is listed for the \*\*NordicTrack 831.29894 elliptical\*\*. It is intended for use as an RPM speed sensor on that equipment. The part replaces the original speed-sensing component when the existing sensor requires replacement.

Use this sensor for repair, maintenance, or parts replacement on a compatible NordicTrack elliptical. It is not identified on the product page as a universal sensor, and the available information does not confirm compatibility with other NordicTrack models or other brands.

## Why Choose This Product

The main reason to choose the SS339 is its specific identification for the NordicTrack 831.29894 elliptical. Matching the part number can make the replacement process more straightforward and helps reduce the risk of ordering a sensor with different specifications.

Replacing only the faulty sensor may also be more practical than replacing a larger assembly, provided the sensor is the component that has failed and the part matches your equipment.

## Before You Buy

Confirm that your machine is a \*\*NordicTrack 831.29894 elliptical\*\* and compare the existing sensor or service information with part number \*\*SS339\*\* before ordering. Check the model label on your equipment carefully, since similar NordicTrack machines may use different components.

The product listing does not state installation requirements, included accessories, condition details, dimensions, or warranty coverage. Review those details with the seller if they are important to your repair.

## Details

- **Price:** 29.99 USD
- **Vendor:** NordicTrack
- **Type:** Treadmill Sensors
- **Tags:** All

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 29.99 USD | In stock |

## Images

- SS339
- SS339
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- SS339
- SS339

## Additional Information

- **Condition:** PREOWNED

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> Source: [Cardio Equipment Parts](https://www.cardioequipmentparts.com/products/nordictrack-831-29894-elliptical-rpm-speed-sensor-ss339)
> Updated: 2026-08-29