333'S MKA-58 Boat Deck Reinforcement Kit – Trolling Motor Backing Plate Compatible with Minn Kota Ulterra, Terrova, Riptide Terrova & Riptide Instinct

Spread the Load from High-Thrust Bow-Mount Trolling Motors Modern 24V and 36V trolling motors with Spot-Lock and strong steering can put a lot of torque into the bow. On thin fiberglass, aluminum, or cored decks that force often concentrates around small washers, leading to flex, gelcoat chips, and even pulled bolts. The 333'S MKA-58 Boat Deck Reinforcement Kit adds a large backing plate under your bow mount so thrust and wave shock are spread across a much wider area of the deck. Built for Ulterra, Terrova, Riptide and Similar Rigs Whether you’re running an Ulterra on a bass boat, a Terrova on a multi-species rig, or a Riptide motor on an inshore bay boat, this trolling motor backing plate gives the mount a stiffer, more stable footprint. The pre-drilled hole pattern is compatible with MKA-58 / 1854058-style quick-release inner plates, so you can upgrade the structure under an existing mount or build a new setup with confidence from day one. Reinforce Thin, Cored, or Aging Decks Many boats use thin skins over foam or honeycomb cores in the bow area. Over time, repeated loading in the same small footprint can cause the deck to dimple, crack, or spider-web around the bolt heads. By sandwiching the deck between a wide top plate and backing pieces below, this kit helps carry the load through more structure instead of just a few small washers, making the bow feel more solid under hard acceleration, rough water, and frequent Spot-Lock use. Cover Old Holes and Shift Your Mount if Needed On older boats, the original trolling motor holes may be chewed up, elongated, or not quite where you want them. This reinforcement plate can cover worn gelcoat around those holes and give you a clean new surface to work from. You can keep the same footprint or shift the mount slightly to clear rub rails, bow eyes, or other hardware, then bolt through to the included backing pieces to regain strength in the area. Salt-Ready for Riptide and Coastal Boats For nearshore and inshore anglers running Riptide motors, corrosion resistance is a must. The 333'S MKA-58 Boat Deck Reinforcement Kit combines a corrosion-resistant aluminum plate with stainless fasteners and nylon-insert lock nuts so it can handle spray, bilge moisture, and salt air. That makes it a smart choice for boats that live in brackish bays, tidal rivers, or coastal environments where hardware is constantly under attack. Clean, Straightforward Installation The kit is designed for straightforward installation by boat owners or rigging shops. After planning your hole layout, you drill through the deck, position the reinforcement plate and backing pieces, and bolt the system together. With a quality marine sealant in the holes and around the hardware, you can achieve a neat, watertight install that stiffens the bow and gives your quick release bracket or trolling motor base a more secure foundation. Ideal for New Installs, Upgrades, and Retrofits Whether you’re rigging a brand-new bass boat, upgrading a tournament rig for more thrust, or bringing an older hull back to life, this MKA-58-compatible reinforcement kit helps protect your deck and your trolling motor investment. It’s equally at home in the driveway with a DIY owner or in a pro rigging bay where techs need a repeatable, reliable way to support high-thrust bow mounts. FAQ Q: Which trolling motors is this compatible with? A: The plate uses a hole pattern compatible with MKA-58 / 1854058-style quick-release inner plates commonly used under Minn Kota Ulterra, Terrova, and Riptide models. Always compare your existing base or template to confirm fit before drilling. Q: Can I use it on an older boat with damaged holes? A: Yes. The reinforcement plate is often used to cover worn gelcoat and help redistribute load around old mounting areas. However, any soft, rotten, or structurally compromised core material should be repaired by a qualified professional before you install this kit. Q: Is this suitable for saltwater use? A: Yes. The aluminum plate and stainless hardware with nylon-insert lock nuts are designed for both freshwater and saltwater environments. Rinse with fresh water after outings and follow normal maintenance to maximize service life.

• Stop Deck Flex Under High-Thrust Trolling Motors: Aluminum reinforcement plate works as a trolling motor backing plate, spreading load from 24V/36V bow-mount motors and Spot-Lock to help prevent deck flex, gelcoat chips, and mounting bolt pull-out
• Reinforce Thin or Cored Boat Decks: Ideal for fiberglass, aluminum, and cored decks, the kit sandwiches the bow mount between a wide top plate and backing pieces so thrust and wave shock go into more structure instead of a few small washers
• Compatible Hole Pattern for MKA-58 Mounts: Pre-drilled layout matches Minn Kota MKA-58 / 1854058 quick-release inner plates used with Ulterra, Terrova and Riptide trolling motors, making it easy to upgrade new installs or retrofit old bolt holes
• Salt-Ready Materials for Fresh or Salt Water: Corrosion-resistant aluminum plate plus stainless bolts, washers and nylon-insert lock nuts stand up to spray, bilge moisture and salt air, ideal for Riptide and inshore rigs that see brackish bays
• Clean Install for New Builds or Repairs: Mounting options let you cover worn gelcoat around old holes, shift the motor footprint and bolt through to the backing pieces; add marine sealant for a neat, watertight bow-mount deck repair or upgrade