Product Description
Minn Kota motor rebuild kit for most 3 5/8" lower units. For use in 46 through 70 pound thrust motors.
***Be sure to check your application for proper fit!*** Motor diagrams available here -->Minn Kota Diagrams<--
Minn Kota Motor Rebuild Kit Contains:
- 1x 738-036 Brush Plate (#12 on diagram)
- 2x 188-036 Brush w/lead (#10 on diagram)
- 2x 975-040 Brush Spring (#13 on diagram)
- 1x 140-010 Bearing (#2 on diagram)
- 1x 725-050 Brush Retension Tube (#11 on diagram)
- 1x 2888460 Seal Kit (INCLUDES ALL 6 SEALS)
- 1x 788-015 Retaining Ring (#3 on diagram)
- 1x 990-067 Steel Washer (#19 on diagram)
- 2x 990-070 Nylatron Washer (#20 on diagram)
You can also check out these collection of various Motor Rebuild Kits for more Minn Kota Trolling Motors.
Revitalize Your Trolling Motor: The Complete Minn Kota 3-5/8" Motor Rebuild Kit
Bring your trusted Minn Kota trolling motor back to peak factory performance with this comprehensive motor rebuild kit. Designed specifically for models with a 3-5/8-inch diameter lower unit, this all-in-one kit provides all the essential components needed to perform a complete overhaul of the motor's core wear parts, addressing issues like water intrusion, noise, and power loss.
Over time and through hard use, the internal seals and brushes of any trolling motor will degrade. This can lead to water seeping into the sealed motor housing, causing corrosion, bearing failure, and ultimately, catastrophic motor damage. This rebuild kit is the definitive solution for preventative maintenance or for resurrecting a motor that has started to show its age. By replacing these critical parts, you can restore lost power, ensure quiet operation, and significantly extend the life of your investment.
This kit contains all the genuine-quality components required for a successful rebuild, ensuring a perfect fit and reliable, long-lasting performance on the water.
Key Kit Components & Their Functions:
- T-Seal Kit (Center Section Seals): This crucial set of inner and outer T-seals creates the primary barrier against water intrusion along the main motor shaft, located in the center housing.
- O-Rings: Provides a watertight seal between the lower unit housing and the end bells, a common point for leaks if compromised.
- Brush & Spring Assembly: A complete set of new motor brushes and springs. Worn brushes are a primary cause of power loss, excessive noise, and poor efficiency. Replacing them restores the motor's electrical connection for maximum torque and RPM.
- Brush Plate Assembly: The foundation that holds the brushes in their correct alignment, ensuring proper contact with the armature's commutator.
- Ball Bearing: A high-quality replacement ball bearing provides smooth, friction-free rotation for the armature, reducing noise and improving efficiency.
- Prop Shaft Seals: Includes the outer seal and the inner seal with a protective seal cup. This is the first line of defense against water entering the motor housing via the propeller shaft.
- Steel & Rubber Washers: Essential for proper spacing and tension within the motor assembly.
Compatibility Guide
This motor rebuild kit is designed exclusively for Minn Kota freshwater and saltwater trolling motors that utilize a 3-5/8-inch diameter lower unit housing. This is the most common motor size for a wide range of transom-mount and bow-mount motors across various thrust ratings.
This rebuild kit is compatible with, but not limited to, the following Minn Kota motor models:
All Terrain (AT) / AT Pro Series:
- 42AT, 48AT, 55AT
- AT 30, AT 36, AT 40, AT 50, AT 55
- All Terrain Pro 36, 55
Edge Series:
- 40 Edge, 45 Edge
- 50 Edge, 55 Edge
Endura / Endura C2 / Endura MAX Series:
- 30 Endura, 36 Endura, 38 Endura
- 40 Endura, 45 Endura, 46 Endura, 50 Endura, 55 Endura
- Endura C2 30, 34, 38, 40, 45, 50, 55
- Endura MAX 40, 45, 50, 55
Maxxum Series:
- 40T, 50T, 55T (Transom Mount)
- 55 Maxxum
- Maxxum Pro 65
PowerDrive & PowerDrive V2 Series:
- 36PD, 40PD, 42PD, 50PD, 55PD
- PD V2 40, 42, 45, 50, 55
Riptide (Saltwater) Series:
- RT40/S, RT40/SC, RT45/SC
- RT50/S, RT55/S, RT55/SC
Traxxis Series:
- 40 Traxxis, 45 Traxxis
- 50 Traxxis, 55 Traxxis
Vector Series:
- 40 Vector, 45 Vector, 46 Vector
- 55 Vector
Classic Models:
- 35, 36, 40, 65, 65N, 65W
- Many other older models with a 3-5/8" housing.
Important Note on Fitment: The most reliable way to confirm this kit is right for your motor is to measure the outside diameter of the lower unit (the "can" or motor housing). If it measures 3-5/8 inches, this kit is designed to fit. It is not compatible with larger 4" or smaller 3-1/4" diameter motors. Please verify your motor size before ordering to ensure a successful rebuild.
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Rebuild kits
Very happy with my treatment and quality
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Minnkota electric motor rebuild kit
The staff was very helpful answering my questions before my purchase and the kits (2) came with everything I needed. I am back in the water. Don’t hesitate to throw your business their way!
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Perfect repair kit!! Everything you need!!
I was lucky to find the parts...
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Problem Solved
The motor rebuild kit arrived quickly and was the perfect fit to rebuild my trolling motor. Quality parts and fast shipping, can’t ask for much more.
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I am very satisfied with the service, very professional. before buying, I contacted them and got instructions on what parts I need and I received detailed instructions on how to repair my motor. I recommend to everyone
I am very satisfied with the service, very professional. before buying, I contacted them and got instructions on what parts I need and I received detailed instructions on how to repair my motor . I recommend to everyone
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Minn Kota motor rebuild kit
This kit was complete. It had everything I needed to repair my Minn Kota 3 5/8 motor. I had to modify the brush holder, but other then that it did the job. I am well pleased
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received in great time and condition
received well before delivery time and perfect condition
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3 5/8 motor rebuilt
All parts necessary to rebuild. Everything fit and dead motor came to life.
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exactly what was needed
The kit included the parts I needed to rebuild after the motor became water damaged. Thanks for having a clear diagram to help with the assembly process. Shipping from Mikes went well - it was shipped out and received in a reasonable amount of time.

