Kayak Trolling Motor Mount
How to Mount a Trolling Motor on a Kayak (DIY Mount Guide)
How to mount a trolling motor on a kayak with a bolt-on bracket or a no-drill DIY PVC mount, plus how to size the motor's thrust to your kayak's weight.
A trolling motor turns a kayak into something closer to a tiny jon boat, but only if it’s actually mounted well. A wobbly bracket or an undersized motor is worse than paddling, since now you’re fighting hardware instead of water. This guide covers both routes: buying a bolt-on bracket kit, and building a no-drill DIY mount from PVC pipe and plywood.
This is the Propulsion & Electronics entry in our kayak fishing accessories guide. If you’re deciding what motor to pair with a mount, see our kayak fish finder guide for the electronics side of a rigged fishing kayak, since both usually get installed in the same session.
Key Takeaways
- Two real mounting paths exist: a purpose-built bracket kit (roughly $115-200) that bolts to a scupper or rail mount, or a no-drill DIY mount built from PVC pipe and plywood that clamps into existing rod holders.
- The DIY PVC-and-plywood approach, documented by ePropulsion, requires no hull drilling at all: two 1½-inch PVC pipes seated in rod holders support a plywood transom plate the motor clamps to.
- Motor sizing follows a rough rule of thumb from Minn Kota: about 2-2.4 lbs of thrust per 100 lbs of total loaded weight (kayak + gear + angler) in calm water, more in wind or current.
- Most kayaks land in the 30-55 lb thrust range: under 12 feet typically needs 30-40 lbs; 12-14 feet needs 40-55 lbs.
- Bracket kits like Newport Vessels’ NK Series fit a specific shaft diameter (1 1/8 inch is common), so match the bracket to your motor’s shaft before buying, not just to your kayak.
Jump to a section:
- Bracket Mount vs. DIY Mount: Which to Choose
- Sizing the Motor Before You Mount Anything
- Option 1: Bolt-On Bracket Kits
- Option 2: No-Drill DIY PVC and Plywood Mount
- Bow Mount vs. Transom Mount
- Safety Checks Before You Launch
- Frequently Asked Questions
Bracket Mount vs. DIY Mount: Which to Choose
| Approach | Drilling Required? | Approx. Cost | Best For |
|---|---|---|---|
| Bolt-on bracket kit (Newport Vessels NK Series) | Usually mounts to an existing scupper/rail/Power-Pole base, not the hull itself | $199.99 | Anglers who want a rated, repeatable mount and don’t mind the higher cost |
| Bolt-on bracket kit (Watersnake bracket) | Same as above | $67.99-$80 shipped | Budget-conscious anglers pairing with a Watersnake motor |
| DIY PVC + plywood mount (rod-holder mounted) | No hull drilling | $20-40 in hardware-store materials | Anyone comfortable building their own, or wanting to avoid permanent modification |
Sizing the Motor Before You Mount Anything
Before picking a bracket, size the motor itself, since an undersized motor on a perfect mount still won’t push a loaded kayak well. Minn Kota’s published rule of thumb is roughly 2 to 2.4 lbs of thrust per 100 lbs of total loaded weight (kayak, gear, and angler combined) to hold a moderate speed in calm water, with 20-30% more thrust needed in wind or current (Minn Kota).
In practice, that works out to rough bands by kayak length: kayaks under 12 feet typically need 30-40 lbs of thrust for 2-3 mph, 12-14-foot kayaks need 40-55 lbs for 3-4 mph, and kayaks over 14 feet need 55-80 lbs for 4-6 mph (aggregated guidance from kayak-motor retailer and OEM sizing charts; treat these as planning ranges, not a guaranteed speed for your specific hull). Weigh your fully loaded kayak, not just the bare hull, before shopping for a motor.
Option 1: Bolt-On Bracket Kits
A bracket kit is the fastest path to a rated, repeatable mount. These clamp to an existing scupper hole, accessory rail, or a Power-Pole-style 4-bolt base, rather than requiring you to drill new holes specific to the motor.
The Newport Vessels NK Series Motor Mount Kit includes the bracket, a quick-release axle, and a reverse lockout, fits a 1 1/8-inch motor shaft diameter, and lists for $199.99, designed specifically for Newport’s own NK180PRO and NK300 motors (Newport Vessels). On the budget end, a Watersnake bracket bundle runs about $67.99 plus roughly $12 shipping and is built around a three-axis design for adjusting the motor’s angle (Watersnake / trolling-motor.biz).
The catch with any bracket kit: confirm your motor’s shaft diameter and your kayak’s existing mounting points (scupper size, rail type, or accessory-track compatibility) before buying, since these kits are not universal across every motor brand.
Verdict: worth the extra cost for a rated mount with a locking mechanism, especially if your motor and kayak’s mounting points already match a specific kit.
Option 2: No-Drill DIY PVC and Plywood Mount
If you’d rather not drill the hull or buy a dedicated bracket, a PVC-and-plywood mount seats directly in existing rod holders. ePropulsion’s documented build uses two 1½-inch diameter PVC pipes set into the kayak’s rod holders, a length of 2x plywood cut to span between them, and screws/bolts to fasten the plywood to the pipes; the motor then clamps to the plywood plate like it would to a boat’s transom (ePropulsion). Total hardware cost typically runs in the $20-40 range for pipe, plywood, and fasteners from a hardware store, though ePropulsion’s own guide doesn’t publish an exact figure.
Basic steps, per ePropulsion’s build: measure the distance between your rod holders, cut the PVC pipes to the depth needed to seat securely, cut the plywood to span that width, drill mounting holes through the pipes for the plywood, bolt it together, then clamp the motor to the finished plate. No hull modification is required since the load path runs entirely through the rod holders.
The tradeoff versus a bracket kit: a rod-holder-mounted plate isn’t rated to a specific load the way a purpose-built bracket is, and rod holders themselves vary in how securely they’re set into different kayak models.
Verdict: the right call if you want a genuinely no-drill mount and don’t mind a DIY build, or you’re testing whether a trolling motor setup is worth a bigger investment before buying a dedicated kit.
Bow Mount vs. Transom Mount
Most kayak trolling motor setups mount at the stern (transom), which is what both options above assume, and it’s the simplest for straight-line control. A bow mount, more common on bass boats, is less common on kayaks because it usually requires a more elaborate mounting structure at the front of a hull that wasn’t designed for one. Unless you have a specific reason to mount forward (some anglers prefer bow control for precision positioning while fishing), a stern/transom mount is the standard, simpler starting point for a kayak.
Safety Checks Before You Launch
However you mount the motor, check three things every time before you’re on the water: the mount hardware is torqued down and hasn’t loosened since the last trip, the motor’s weight plus its battery hasn’t pushed your kayak past its rated capacity, and the mount doesn’t obstruct a paddle stroke if you need to paddle back in an emergency. A motor that fails mid-trip should never leave you with no way to move the kayak.
If your vehicle doesn’t have factory crossbars, getting the rigged kayak (now heavier with a motor and battery aboard) home is its own separate question worth planning for. See our roof rack guide for SUVs without crossbars for that half of the trip.
Frequently Asked Questions
Do I need to drill my kayak to mount a trolling motor?
No, not necessarily. A no-drill DIY mount built from PVC pipe and plywood seats in existing rod holders with no hull modification. Bracket kits typically clamp to an existing scupper, rail, or accessory-mount point rather than requiring new holes, though check your specific kit’s instructions since this varies by product.
What size trolling motor do I need for my kayak?
Use roughly 2-2.4 lbs of thrust per 100 lbs of total loaded weight (kayak, gear, and angler) as a starting point, per Minn Kota’s published guidance, then add 20-30% for wind or current. In practice, most kayaks under 12 feet land in the 30-40 lb thrust range, and 12-14-foot kayaks land in the 40-55 lb range.
Is a bracket kit worth it over a DIY mount?
If your motor and kayak match an existing bracket kit’s specifications, yes, since it gives you a rated, repeatable mount with a locking mechanism for a set price. A DIY PVC-and-plywood mount is the better choice if you want to avoid that cost, don’t mind building it yourself, or aren’t ready to commit to a specific bracket-kit ecosystem yet.
Can I mount a trolling motor at the bow instead of the stern?
You can, but it’s less common and usually requires a more involved mounting structure since kayak bows aren’t designed the way bass-boat bows are. A stern/transom mount is the standard, simpler starting point for most kayak trolling motor setups.
How This Guide Is Researched
OutdoorIdol’s gear guidance is built from manufacturer specifications, published retailer pricing, and established outdoor-brand documentation, not paid placement. We do not claim hands-on testing we haven’t done. See our about page for how these guides are written and by whom.
Conclusion
Mounting a trolling motor on a kayak comes down to two real choices: a bolt-on bracket kit that costs more but gives you a rated, repeatable mount, or a no-drill DIY plate built from PVC and plywood that costs a fraction as much. Either way, size the motor to your kayak’s fully loaded weight first, not just the mount, and run the same hardware and capacity checks before every trip.
