Minn Kota | Trolling Motor Propeller | Weedless Wedge 2 Prop | MKP-33 | 1865018

Product Overview

The Minn Kota | Trolling Motor Propeller | Weedless Wedge 2 Prop | MKP-33 | 1865018 is a tournament-grade, heavy-duty marine propeller engineered to provide absolute weedless navigation and maximum power efficiency for high-output Minn Kota trolling motor lines. Operating in heavy fields of thick freshwater hydrilla, milfoil, marsh grass, or coastal pad fields presents a significant rigging challenge: standard propellers easily become choked and wrapped in vegetation, stalling the motor armature and draining your deep-cycle battery cells rapidly due to intense underwater drag. The Minn Kota MKP-33 solves this challenge completely by deploying a patented 2-blade swept-back architecture featuring specialized flared leading edges. This curved geometry utilizes continuous centrifugal force to shed weeds outward off the blade tips, allowing your boat to slice cleanly through the thickest cover at any speed tracking line without bogging down the electrical circuit.

Molded entirely from Minn Kota’s premium, glass-reinforced composite polymer matrix, this high-tensile propeller features an exceptional strength-to-weight ratio. The composite blend is engineered to remain perfectly rigid under full-throttle acceleration, completely eliminating blade flex to translate every ounce of motor torque directly into forward or reverse movement. The MKP-33 is precision-balanced from the factory to eliminate lower-unit wobbling and harmonic vibration hums, protecting your internal grease seals while maintaining absolute silent stealth over shallow flats. The comprehensive replacement package comes fully loaded from the factory and is ready for an immediate prop overhaul, containing the premium black composite propeller, an authentic steel shear pin, a heavy-duty nylon-locking nut, and a flat washer.

Key Features

• Swept-Back Weedless Wedge 2 Geometry: Built with unique swept-back, flared blade profiles that push weeds away from the hub, cutting cleanly through thick cover without wrapping or stalling.
• High-Thrust Composite Material Matrix: Molded from an advanced, high-density polymer matrix that resists impact chipping, structural warping under heavy load, and UV weathering.
• Complete Fastener Overhaul Pack: Arrives fully loaded from the factory with a replacement steel shear pin, a heavy-duty nylon-locking nut, and a flat spacing washer for a clean hardware refresh.
• Maximizes On-Water Battery Runtime: Precision-balanced architecture completely eliminates lower-unit wobbling and mechanical drag, drastically reducing amp draw to extend battery runtime.
• Restores Silent Steering Performance: Eliminates vibration hums and shaft play along the lower torpedo housing, preserving your stealth presentation in shallow water bays.
• Authentic OEM Factory Fitment: Certified as an original Minn Kota replacement accessory, guaranteeing an absolute, perfect physical seat onto your trolling motor's 3-5/8 inch diameter hub.

Compatibility Information

The Minn Kota Weedless Wedge 2 Prop MKP-33 (part number 1865018) features a highly specific compatibility layout centered around the diameter of your trolling motor's lower unit torpedo housing. It is engineered explicitly to fit Minn Kota motors utilizing a 3-5/8 inch motor diameter hub.

This includes extensive compatibility with specific high-power power brackets across the modern and legacy **Minn Kota Terrova, Ulterra, Maxxum, and Fortrex** bow-mount and transom-mount families carrying an **80lb thrust rating** operating on a 24V electrical grid. It also fits select high-output 12V 55lb thrust motors utilizing the updated 3-5/8 inch hub housing. It is critical to note that the MKP-33 **will not fit** smaller 30lb to 50lb motors (which use a 3-1/4 inch hub, like the MKP-2) nor will it fit massive 112lb thrust motors (which utilize a larger 4-inch hub, like the MKP-38). It is fully rated and approved for use in both freshwater and saltwater motor lines.

Frequently Asked Questions

What makes the MKP-33 different from the similar-looking MKP-32 propeller model?

While both the MKP-32 and MKP-33 propellers share Minn Kota's advanced swept-back Weedless Wedge 2 blade profile and fit onto a 3-5/8 inch lower unit hub, they feature different internal hub depths, blade pitches, and include different mounting hardware. The MKP-32 is optimized primarily for mid-range 55lb to 70lb thrust motors and attaches with a standard brass hex nut. The heavy-duty MKP-33 is custom-engineered to handle the significantly higher torque and horsepower outputs of 24V 80lb thrust motors, and it utilizes a specialized nylon-locking nut (included in the kit) to prevent the high-vibration rotational force from backing the nut off the shaft.

How tightly should I screw down the nylon-locking nut during the installation process?

When fastening the premium nylon-locking nut onto your motor shaft, use a standard 1/2-inch socket wrench or a specialized Minn Kota prop wrench. Tighten the nut clockwise firmly until the internal nylon locking ring engages the steel shaft threads and the flat washer presses completely flush against the composite propeller hub. Give it an additional 1/4 to 1/2 turn to secure the compression lock. Avoid over-tightening with high-powered automatic impact guns, as excessive force can strip the threads, bend the internal shear pin, or crack the prop hub.

What is the purpose of the steel pin included inside this replacement kit?

The small steel pin is called a shear pin, and it serves as a critical mechanical safety fuse designed to protect your trolling motor's internal electric motor from catastrophic structural damage. When you are tracking along a shallow flat or weedy marsh bank and the spinning propeller violently strikes a solid underwater hazard—such as a large rock, concrete boat ramp, or heavy submerged log—the shear pin is engineered to snap in half intentionally. This mechanical break decouples the prop from the engine, preventing the high-impact shock from bending the main steel armature shaft or shattering the internal magnets, allowing you to easily replace the pin rather than the entire motor.

Can I safely use this black replacement propeller on a white Minn Kota Riptide saltwater motor?

Yes, absolutely. From a purely structural, mechanical, and physical standpoint, the MKP-33 Weedless Wedge 2 Prop is fully compatible with white Minn Kota Riptide saltwater trolling motor models, provided the Riptide motor carries a matching 80lb thrust rating with a 3-5/8 inch hub diameter. Minn Kota’s composite props are completely inert and non-metallic, meaning they contain no components that can rust, pit, or suffer from galvanic corrosion in highly conductive saltwater bays. The only difference is cosmetic—installing this black prop onto a white Riptide lower unit will create a black-and-white contrast layout, but it will deliver the exact same high-thrust performance.

Why is my trolling motor vibrating loudly after installing this new replacement prop?

If your trolling motor exhibits a loud humming noise or heavy physical vibration after installing the MKP-33, it is typically caused by one of two installation alignment issues. First, check to ensure that the internal steel shear pin is sitting perfectly centered inside its shaft slot and has not slid slightly to one side, which will cause the propeller to seat crookedly. Second, inspect the prop shaft itself for any tangled loops of braided fishing line wrapped behind the prop. A buildup of compressed fishing line can push the prop forward out of balance and can quickly destroy the lower unit's rubber oil seals, allowing water to leak into the electric motor compartment.