Minn Kota MKP-37 Power Prop 3-5/8" – 1865022

Minn Kota MKP-37 Power Prop — 3-5/8" Motor Diameter

The Minn Kota MKP-37 is a Power Prop replacement propeller for compatible 3-5/8-inch motor diameter trolling motors. Designed to deliver strong pushing power through heavy vegetation and dense cover, it is supplied as a complete kit with the drive pin, prop nut, and washer. The MKP-37 is interchangeable with the MKP-32 Weedless Wedge 2 on supported motor applications, giving you a choice between a traditional power blade and a weed-shedding design on the same motor.

Part Information

• Prop Name: MKP-37 Power Prop
• Propeller Number: 2091170
• Kit Part Number: 1865022
• Replacement Prop (blade only): 1378170
• SKU: 27-1865022
• Brand: Minn Kota
• Official Product Type: Trolling Motor Replacement Propeller
• Motor Diameter: 3-5/8 in.
• Prop Style: Power Prop (standard blade)
• Drive Pin: 1.06" (part 2092600)
• Lock Washer: 2151726
• Nyloc Prop Nut: 2053101 (thread: 5/16"-24)
• Prop Nut Kit: MKP-9 / 1865010 (included)
• Interchangeable With: MKP-32 Weedless Wedge 2 (1865017)
• UPC: 029402035472

Kit Contents

• MKP-37 Power Prop blade
• Drive pin (1.06" / part 2092600)
• Lock washer (2151726)
• Nyloc prop nut (2053101 / MKP-9)

Compatible Applications

Fits motors with a 3-5/8 in. motor housing diameter. Serial number prefix applicability varies by motor family — always confirm against your motor's model, serial prefix, and parts diagram. The existing Minn Kota compatibility guide references serial prefixes "J" through "R" for the broader model range below. Compatible motor families and models include:

• All Terrain — 46, 47, 50, 55, 65, 70
• Camo — 55
• Classic — 55
• Edge — 50, 55, 70
• Endura — 46, 50, 55
• Endura C2 — 50, 55
• Endura C2 Pro — 55
• Endura Max — 50, 55
• Engine Mount — 55EM
• Maxxum — 55, 65, 70
• Maxxum Transom — 46, 50, 55, 70
• PowerDrive — 50, 55, 65, 70
• PowerDrive V2 — 55, 65, 70
• Riptide Transom — RT 50SC, RT 55SC, RT 55, RT 55V, RT 55EM
• Terrova — 55
• Traxxis — 46, 50, 55, 55SC, 70
• Vector 3X — 46, 55

Fitment Notice

Select this prop by motor housing diameter (3-5/8 in.), model, and serial number prefix — not by thrust rating alone. The MKP-37 and the MKP-32 Weedless Wedge 2 are interchangeable on compatible motors, so the choice between them comes down to blade style preference rather than fitment. Verify your motor's parts diagram before ordering.

Parts Desk Insights

Best Use Case: The MKP-37 is the right choice when you want a conventional power blade on a 3-5/8-inch motor — particularly for open-water or mixed-condition fishing where weed-shedding is less of a priority than raw pushing performance. Because it is interchangeable with the MKP-32 Weedless Wedge 2 on the same motor, some anglers keep both on hand and swap depending on conditions: MKP-37 for open water and cleaner bottoms, MKP-32 for weedy or heavily covered areas.

Common Issues: The primary fitment mistake is selecting by thrust rating rather than confirming the 3-5/8-inch motor housing diameter. At the 50–70 lb thrust range, multiple motor housing diameters exist across the Minn Kota lineup. Also note that the MKP-37 uses the MKP-9 prop nut kit — the same as the MKP-6 and MKP-7 — not the MKP-34 used on the larger MKP-33. After removing a prop, always clear the shaft of fishing line before installing the replacement to avoid vibration and seal wear.

Related Products & Accessories

• Minn Kota MKP-9 Prop Nut Kit A (3/8") — correct prop nut kit for MKP-37; included and available separately as a spare
• Minn Kota MKP-32 Weedless Wedge 2 Prop — interchangeable weed-shedding alternative for the same 3-5/8 in. motors
• Minn Kota MKP-7 Weedless Wedge Prop 2091150 — Weedless Wedge prop for other 3-5/8 in. compatible applications
• Minn Kota MKP-33 Weedless Wedge 2 Prop 2331160 — Weedless Wedge 2 prop for 4 in. motor diameters
• Minn Kota MKP-38 Weedless Wedge 2 Prop 2341160 — Weedless Wedge 2 prop for 4-1/2 in. motor diameters
• Minn Kota MKP-40 Power Prop 1865040 — power prop for larger-diameter motor applications
• Minn Kota MKP-39 Weedless Prop 1865039 — weedless prop for QUEST-series motors
• Minn Kota MKP-23 Prop Nut — prop nut for other compatible motor models
• Minn Kota MKP-34 Prop Nut — prop nut for 4 in. motor applications
• Minn Kota MKP-10 Prop Nut (1/2") — prop nut for larger shaft motors

Service Interval

No scheduled service interval. Inspect the prop before each outing for blade cracks, chips, warping, or hub damage at the drive-pin area. After fishing in weedy or debris-heavy conditions, check the shaft for wrapped fishing line before the next use — line accumulation causes vibration and shaft seal wear over time. Replace the prop if blades are cracked, significantly chipped, or if vibration or thrust loss develops. The blade-only service part is 1378170 if the hardware is still serviceable.

Technical FAQ

• How do I confirm the MKP-37 fits my motor? Verify your motor has a 3-5/8 in. housing diameter and that the model and serial number prefix fall within the compatible range. Cross-reference against the list above and your motor's parts diagram — do not rely on thrust rating alone.
• What is the difference between the MKP-37 and MKP-32? Both fit the same 3-5/8 in. motor diameter and are interchangeable on compatible motors. The MKP-37 is a conventional Power Prop blade; the MKP-32 is a Weedless Wedge 2 with swept-back, flared blades designed to shed vegetation. Choose based on your typical fishing conditions.
• Which prop nut kit does the MKP-37 use? The MKP-37 uses the MKP-9 / Kit A (1865010) — the same kit used by the MKP-6 and MKP-7. This is different from the MKP-34 used on the larger MKP-33.
• Does the kit include all hardware? Yes — the MKP-37 kit (1865022) includes the prop blade, drive pin (2092600), lock washer (2151726), and nyloc prop nut (2053101 / MKP-9). If you only need the blade as a service replacement, order part 1378170.
• What if my prop vibrates after installation? Confirm the drive pin is fully seated in the shaft and properly engaged in the prop hub. Check the shaft for any fishing line or debris from the previous prop. Verify the prop is not contacting the motor housing at any point during rotation. If vibration continues, confirm the correct prop model and housing diameter for your motor.