Minn Kota Trolling Motor Armature Ball Bearing Endura Ultrex

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Price is firm for single items, but if you need multiple, I can offer a discount on shipping. Please comment with the quantity you need before purchasing.

The manufacturer will be increasing prices from the next shipment.


This is a new ball bearing for the Minn Kota armature core shaft.


Compatible with MINN KOTA Part No. 140-010
Endura, Ultrex, and other Minn Kota trolling motors (3.25 / 3.62 / 4.00 motors).

This is the ball bearing at the tip of the armature core shaft (see image 1).
Bearings are consumable parts, so it's time to replace them if you hear strange noises or if they feel rough when rotated.

Please note that this may not be compatible with some models, such as larger 112lbs motors or older models. Please check the part number.


* Bearing replacement is at your own risk.
Especially when removing and installing without specialized tools, such as by clamping the shaft with a wooden block and hitting it with a hammer, please be careful to avoid bending the shaft and tap gently and gradually.