Minn Kota

Minn Kota MKP-9 Prop & Nut Kit A - ⅜"

SKU: 25458 · UPC: 029402650101 · MPN: 1865010
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02 · Overview

Minn Kota MKP-9 Prop & Nut Kit A - ⅜" — Product description

Keep your Minn Kota trolling motor running smoothly on every outing with the reliable MKP-9 Prop & Nut Kit A. Designed for 3/8-inch props, this essential replacement set ensures you're never sidelined by a worn or damaged propeller nut. Anglers know how props take a beating from underwater obstacles, weeds, and constant use—having a spare kit on hand means quick fixes right on the water or at the dock, minimizing downtime and maximizing your time fishing.

Why This Prop Nut Kit Stands Out for Trolling Motor Owners

Unlike generic hardware store parts, the MKP-9 is precision-engineered by Minn Kota to match the exact tolerances of their popular propellers. The included nut and washer are built tough, typically from corrosion-resistant materials that hold up against freshwater and saltwater exposure. This kit shines in high-weed areas or rocky shallows where props frequently need swapping. It's not just a replacement—it's a safeguard for consistent thrust, quieter operation, and better battery life, as a loose or stripped nut can cause vibrations that sap performance.

  • Effortless Maintenance: Swap props in under five minutes with basic tools.
  • Peace of Mind: Perfect fit prevents slippage, ensuring full power transfer from motor to prop.
  • Versatile for Various Conditions: Ideal for bass boats, kayaks, or pontoons running Minn Kota motors.

Full Compatibility Breakdown

This 3/8-inch kit pairs seamlessly with several Minn Kota propeller models, making it a go-to for owners of mid-range to high-thrust trolling motors. Here's what it fits:

  • MKP-2 and MKP-3 Vanishing Props: These innovative designs shear off on impact to protect your motor shaft, and this kit gets you back up fast.
  • MKP-6 and MKP-7 Weedless Wedge Props: Built for thick vegetation, where prop damage is common—quick nut replacement keeps you weed-free.
  • MKP-25 and MKP-37 Power Props: High-performance options for stronger push in current or wind; reliable hardware maintains peak efficiency.

Pro tip: Always check your prop's shaft size before ordering. If you're unsure, measure the threaded portion—3/8-inch is standard for many 40-80 lb thrust models.

Simple Installation Steps for DIY Anglers

No need for specialized tools or a service center. Grab an adjustable crescent wrench (7/16-inch works best), and follow these steps:

  1. Power off and lift the motor out of water for safety.
  2. Remove the old nut and washer by turning counterclockwise.
  3. Slide on the new washer, then thread the nut clockwise until snug—hand-tighten first, then a quarter-turn with the wrench.
  4. Test spin the prop by hand to ensure it spins freely without wobble.
  5. Lower back into water and run a quick throttle test.

Regular checks every few trips prevent issues. Tighten seasonally, especially after heavy use in murky waters.

Long-Term Care Tips to Extend Prop Life

To get the most from your MKP-9 kit and props:

  • Rinse with freshwater after saltwater trips to combat corrosion.
  • Inspect for dings or bends after striking logs—replace promptly to avoid motor strain.
  • Pair with anti-seize compound on threads for easier future removals.
  • Store motors vertically to reduce prop stress during trailering.

Many anglers keep multiples of this kit in their tackle box—it's lightweight, compact, and a smart investment for uninterrupted adventures.

Frequently Asked Questions

What is included in the Minn Kota MKP-9 Prop & Nut Kit A?

Each kit comes with one prop nut and one washer, specifically sized for 3/8-inch propeller shafts on compatible Minn Kota models.

Which Minn Kota propellers is the MKP-9 Kit A compatible with?

It's designed for MKP-2 and MKP-3 Vanishing Props, MKP-6 and MKP-7 Weedless Wedge Props, and MKP-25 and MKP-37 Power Props.

What tools do I need to install this prop nut kit?

You'll only need a crescent wrench or adjustable wrench. No other special tools required for a straightforward install.

How often should I replace the prop nut on my trolling motor?

Inspect after every 20-30 hours of use or if you notice vibrations, looseness, or corrosion. Replace annually for heavy users.

Is this kit suitable for both freshwater and saltwater use?

Yes, the corrosion-resistant nut and washer handle both environments well, but rinse thoroughly after saltwater exposure.

What makes the Vanishing Prop compatible with this kit unique?

Vanishing Props break away on hard impacts to save your motor; this kit allows instant replacement without shaft damage.

Does the MKP-9 come with a warranty?

It includes a limited one-year warranty against manufacturing defects when used as directed.

Equip yourself with the MKP-9 Prop & Nut Kit A and fish with confidence—because every second counts on the water.

Quickly, easily remove or replace your prop with this kit. Each kit includes a prop nut and washer. A crescent wrench is required for installation. Compatible with Minn Kota Props:MKP-2 Vanishing prop (part number 2061121 / 1865002)MKP-3 Vanishing prop (part number 2061151 / 1865004)MKP-6 Weedless Wedge (part number 2061125 / 1865003)MKP-7 Weedless Wedge (part number 2091150 / 1865006)MKP-25 Power Prop (part number 2091130 / 1865015)MKP-37 Power Prop (part number 2091170 / 1865022).

Minn Kota 1865010 Attributes

  • Compatibility: MKP-2, MKP-3 Vanishing Prop, MKP-6, MKP-7 Weedless Wedge, MKP-25, MKP-37 Power Prop

Minn Kota 1865010 Features & Benefits

  • Quickly And Easily Remove Or Replace Your Prop
  • Each Kit Includes A Prop Nut And Washer
  • Crescent Wrench Required For Installation
  • Compatible With MKP-2 And MKP-3 Vanishing Prop, MKP-6 And MKP-7 Weedless Wedge, MKP-25 And MKP-37 Power Prop
  • Limited 1 Year Warranty

Minn Kota 1865010 Installation Instructions


Prop & Nut Kits "A" (MKP-9)

  • Easy-to-use kit that allows for fast removal/replacement of prop.
  • Available in three different sizes to fit Minn Kota® prop dimensions (3/8", 1/2" and 5/16").
  • Includes prop nut and washer.
  • Requires a crescent wrench for installation.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.



Three different sizes are provided to fit the Minn Kota prop size 3/8 inch, 1/2 inch and 5/16 inch. Including support nuts and washers. A crescent wrench is required to install. ...
SKU: NVN-25458
MPN: 1865010
UPC: 029402650101
03 · The numbers

Technical specifications

BrandMinn Kota
ModelMinn Kota MKP-9 Prop & Nut Kit A - ⅜"
SKU / MFR#25458

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04 · Before you buy

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05 · Customer voices

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