Installing a Propeller

Correctly installing a propeller is essential for optimal performance for your trolling motor and ensures optimal performance and safety. This guide will walk you through the essential steps, tools, and tips needed to successfully install a propeller, making the process straightforward and stress-free.

Tools Needed:

• A 1/2-inch or 9/16-inch wrench or socket, depending on the specific model.
• In certain situations, a flat-blade screwdriver may also be required.

Caution: Always wear safety glasses and gloves. Disconnect all power to the trolling motor before beginning any work or maintenance. Johnson Outdoors Inc. is not responsible for any damage due to improper rigging or installation. If you are unsure how or unable to perform the following, we recommend you seek the help of an Authorize Service Center or Click here to contact Minn Kota Technical Support.

1. Select the Correct Propeller
   
   • Determine the right propeller based on the diameter of your trolling motor's lower unit.
   • If you're unsure, check our Trolling Motor Prop Selection and Replacement Guide for compatibility with your motor model.
2. Disconnect Trolling Motor from Batteries
   
   • For safety, disconnect the positive trolling motor lead from the battery to prevent accidental activation of the motor.
3. Remove the Old Propeller
   
   1. Position the propeller horizontally (parallel to the ground) to align with the drive pin.
      
      1. This helps avoid dropping the drive pin during removal.
   2. If the drive pin is intact, hold the propeller by hand or use a block of wood to keep it in place.
   3. Use a 1/2-inch or 9/16-inch wrench (depending on your model) to loosen the propeller nut by turning it counterclockwise.
   4. Remove the nut and washer, then slide the propeller off the shaft.
4. Inspect Drive Pin and Seal
   
   1. Check the drive pin and remove any debris, weeds, or fishing line near the motor's seal.
   2. Ensure the seal is intact and free from damage to protect the motor.
5. Install the New Propeller
   
   1. Place the drive pin in a horizontal position and slide the new propeller onto the shaft, aligning it with the slot on the back of the propeller.
      
      1. If vibration or uneven performance occurs, try rotating the propeller 180 degrees.
   2. Add the washer and secure the propeller nut.
   3. Tighten the nut to 25-35 inch-pounds of torque or snug it, then turn an additional quarter turn. Avoid overtightening to prevent damage.
6. Reconnect Trolling Motor Power
   • Reattach the positive power lead to the battery, and your trolling motor is ready for use.

Caution: Over tightening can damage prop and bend the drive pin.

NOTE: We recommend removing the prop after every use to check for weeds or fishing line that may be caught behind it. This can result in damage to the seals and allow water into the motor. Debris is not always visible, and prop must be remove to be properly inspected.
CAUTION: DISCONNECT THE MOTOR FROM THE BATTERY BEFORE BEGINNING ANY PROP WORK OR MAINTENANCE.

Video Guide: How to Replace or Install a Trolling Motor Prop

In this video, we will show you how to replace or install a new trolling motor propeller, inspect the drive pin and lower unit seal, and a few tips for trolling motor props. The process is very simple and only requires minimal tools.

Purchase replacement parts here

Key times in the video

• 0:00 - Introduction
• 0:27 - Tools Needed
• 0:37 - How to Select the Correct Trolling Motor Prop, Drive Pin and Nut Kit
• 0:53 - Disconnect Trolling Motor from Batteries
• 1:06 - How to Remove an Old Trolling Motor Propeller
• 2:05 - Inspect Drive Pin and Seal
• 2:19 - Install New Trolling Motor Prop
• 3:11 - Reconnect Trolling Motor Power
• 3:19 - Learn More About Trolling Motor Props

Resources

• Prop Selection and Compatibility
• Prop Dimensions
• Shop Trolling Motor Props on MinnKota.JohnsonOutdoors.com
• Locate an Authorized Service Provider
• Buy Parts Online