Minn Kota MKP-33 Weedless Wedge 2 Prop 2331160

Minn Kota MKP-33 Weedless Wedge 2 Prop — 4" Motor Diameter

The Minn Kota MKP-33 is a Weedless Wedge 2 replacement propeller for compatible 4-inch diameter trolling motors. Its swept-back, flared blade design uses a patented wedging action to push aquatic vegetation — weeds, lily pads, milfoil, and heavy surface cover — away from the blades rather than tangling around them. The result is maintained thrust and battery efficiency through conditions that would stall or wrap a standard prop.

The MKP-33 occupies the middle position in the Minn Kota Weedless Wedge 2 prop family by motor diameter: it is larger than the MKP-32 (3-5/8 in.) and smaller than the MKP-38 (4-1/2 in.). Confirming your motor's housing diameter is the fastest way to determine which prop is correct.

Part Information

• Prop Name: MKP-33 Weedless Wedge 2
• Propeller Number: 2331160
• Kit Part Number: 1865018
• Service Part Number: 1378132
• SKU: 27-1865018
• Brand: Minn Kota
• Official Product Type: Trolling Motor Replacement Propeller
• Motor Diameter: 4 in.
• Prop Style: Weedless Wedge 2 (swept-back, flared blade)
• Drive Pin: 1" × 3/16"
• Prop Nut Thread: 3/8"-24
• Required Prop Nut: MKP-34 (included)
• UPC: 029402022304

Kit Contents

• MKP-33 Weedless Wedge 2 propeller blade
• Prop nut (MKP-34)
• Drive pin (1" × 3/16")
• Washer

Compatible Applications

Fits motors with a 4 in. motor housing diameter and serial number prefixes "WWAF" through "WWAI" or "J" through "V". Always confirm by motor model, serial prefix, and parts diagram — do not select by thrust rating alone. Compatible motor families include:

• Engine Mount — 80, 101, 160, 202
• EO — 1/2 HP
• Fortrex — 80, 101
• Maxxum — 80, 101
• Maxxum Pro — 80, 101
• Maxxum Transom — 80, 101
• PowerDrive — 80
• PowerDrive V2 — 80
• Riptide — 80, 101
• Riptide Pro — 80, 101
• Riptide Fortrex — 80, 101
• Riptide Maxxum — 80, 101
• Riptide Terrova — 80, 101
• Riptide Ulterra — 80
• Terrova — 80, 101
• Traxxis — 80, 101
• Ultrex — 80
• Ulterra — 80
• Vantage — 80, 101
• Vector 3X — 80, 101
• All Trim-N-Troll Kits (4 in. diameter)

Fitment Notice

Select this prop by motor housing diameter (4 in.), model, and serial number prefix — not by thrust rating alone. The MKP-33 sits between the MKP-32 (3-5/8 in.) and the MKP-38 (4-1/2 in.) in the Weedless Wedge 2 prop range. Installing the wrong diameter will cause vibration and potential motor housing contact. Verify your motor's housing diameter before ordering.

Parts Desk Insights

Best Use Case: The MKP-33 is the correct Weedless Wedge 2 prop for the high-thrust 4-inch motor family — primarily Fortrex, Terrova, Ultrex, Maxxum 80–101, and the full Riptide lineup in those thrust ratings. Anglers running these larger motors through weed beds, flooded timber, or thick shoreline cover will see the biggest benefit over a standard power prop: the swept-back blades shed vegetation continuously rather than accumulating it at the hub. It's also the correct prop for Trim-N-Troll kits using the 4-inch motor housing.

Common Issues: The most common ordering mistake is using motor thrust to select the prop rather than confirming the motor housing diameter. At the 80–101 lb thrust range, three different prop diameters exist (3-5/8 in., 4 in., and 4-1/2 in.) across different Minn Kota motor families — always verify the housing diameter. Also note that the MKP-33 uses the MKP-34 prop nut, not the MKP-9 used on smaller props — confirm you have the correct nut before installation. Post-install vibration nearly always points to a mis-seated drive pin or fishing line left on the shaft from the previous prop.

Related Products & Accessories

• Minn Kota MKP-34 Prop Nut — correct prop nut for MKP-33; included in kit and available separately as a spare
• Minn Kota MKP-38 Weedless Wedge 2 Prop 2341160 — larger Weedless Wedge 2 prop for 4-1/2 in. motor diameters
• Minn Kota MKP-32 Weedless Wedge 2 Prop — smaller Weedless Wedge 2 prop for 3-5/8 in. motor diameters
• Minn Kota MKP-39 Weedless Prop 1865039 — weedless prop for QUEST-series motors
• Minn Kota MKP-10 Prop Nut (1/2") — prop nut for other compatible motor shafts
• Minn Kota MKP-23 Prop Nut — prop nut for other compatible motor models
• Minn Kota MKP-9 Prop Nut Kit A (3/8") — prop nut for smaller-diameter motor props (MKP-6, MKP-7)
• Minn Kota MKP-40 Power Prop 1865040 — standard power prop alternative
• T-H Marine G-Force Eliminator Prop Nut — MinnKota 80, 101 & 112 lb Thrust — aftermarket prop nut option for high-thrust motors

Service Interval

No scheduled service interval. Inspect the prop before each outing for cracks, blade chips, warping, or hub damage. After fishing in heavy weeds, check the shaft for wrapped fishing line before the next use — line accumulation causes drag, vibration, and shaft seal wear over time. Replace the prop if blades are cracked, significantly chipped, or causing noticeable vibration or loss of thrust.

Technical FAQ

• How do I confirm the MKP-33 fits my motor? Verify your motor has a 4 in. housing diameter and that the model and serial number prefix appear in the compatible list above. Check your motor's parts diagram for confirmation — do not rely on thrust rating alone.
• What is the difference between the MKP-33, MKP-32, and MKP-38? All three are Weedless Wedge 2 props with the same blade design. The MKP-32 fits 3-5/8 in. housings, the MKP-33 fits 4 in. housings, and the MKP-38 fits 4-1/2 in. housings. Motor housing diameter determines which is correct.
• Which prop nut does the MKP-33 use? The MKP-33 uses the MKP-34 prop nut (included in the kit). This is different from the MKP-9 used on smaller-diameter props such as the MKP-6 and MKP-7.
• Does this kit include the drive pin? Yes — the MKP-33 kit (1865018) includes the prop nut (MKP-34), drive pin (1" × 3/16"), and washer. The service part (blade only, without hardware) is 1378132.
• Will this prop work on Riptide saltwater motors? Yes — Riptide 80–101, Riptide Pro, Riptide Fortrex, Riptide Maxxum, Riptide Terrova, and Riptide Ulterra are all in the compatibility list. Rinse the prop, drive pin, and shaft with fresh water after each saltwater use.
• What if my prop vibrates after installation? Confirm the drive pin is fully and correctly seated in the shaft and engaged in the prop hub. Check the shaft for any fishing line or debris left from the previous prop. Verify the prop is not contacting the motor housing. If vibration continues, confirm the correct prop model and diameter for your motor.