Minn Kota - MKA-58 Boat Deck Reinforcement Kit - 1854058
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Minn Kota MKA-58 Boat Deck Reinforcement Kit — 1854058
The Minn Kota MKA-58 Boat Deck Reinforcement Kit provides additional strength, stability, and mounting versatility for bow-mount trolling motor installations. Designed for use with Minn Kota Quest RT Instinct, Ulterra, Terrova, and RT Terrova motors, it reinforces the deck mounting area to handle the load and vibration of a high-thrust bow-mount motor. Multiple mounting hole patterns allow flexible positioning to suit different bow deck layouts.
Kit Includes
- MKA-58 deck reinforcement plate
- Stainless steel mounting hardware
Key Features
- Compatible motors: Quest RT Instinct, Ulterra, Terrova, and RT Terrova series
- Multiple mounting hole patterns — flexible installation to suit different bow deck configurations
- Stainless steel hardware included — corrosion-resistant fasteners for long-term marine use
- Adds structural strength and stability — reinforces the deck mounting area to handle high-thrust motor loads and vibration
- Minn Kota OEM accessory — engineered to match the mounting footprint of compatible Minn Kota bow-mount motors
Parts Desk Insights
- When is a reinforcement kit needed? High-thrust bow-mount motors generate significant torque and vibration at the deck mount. On cored or thin-skin fiberglass decks, the mounting area can flex, crack, or compress over time without proper backing. This kit is particularly important on boats where the factory deck was not designed for a large bow-mount motor.
- Confirm motor compatibility: The MKA-58 is designed for Quest RT Instinct, Ulterra, Terrova, and RT Terrova motors. Confirm your motor model before ordering — mounting footprints vary between Minn Kota series and not all reinforcement kits are interchangeable.
- Multiple hole patterns: The kit includes multiple mounting hole patterns to accommodate different deck layouts. Measure your existing mounting hole spacing before installation and confirm the kit pattern matches your motor’s base plate.
- Stainless hardware: All hardware is stainless steel. Use marine-grade sealant on all deck penetrations to prevent water ingress into the deck core — especially critical on cored fiberglass decks where water intrusion causes delamination.
- Not sure if the MKA-58 is right for your installation? Call the parts desk with your motor model, boat make/model, and deck construction type and we’ll confirm the correct reinforcement kit.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.