A dependable boat propeller repair kit helps you replace worn hardware, secure the prop properly, and get back on the water with less hassle.
Below, we focus on practical kits and tools that fit common outboard, inboard, and trolling motor setups, with an emphasis on compatibility and value.
Best 10 Boat Propeller Repair Kit Picks for 2026
Mercury-MerCruiser Hardware Fix
- Includes nut and lock washer
- Fits Alpha, pre-Alpha, Bravo 1
- Stainless steel, vibration-resistant
Best For: Replacing a worn prop nut and washer on compatible MerCruiser drives
Minn Kota Service Set
- Includes nut, drive pin, and washer
- Fits select 12V and 24V trolling motors
- Stainless steel for corrosion resistance
Best For: Quick prop service on compatible Minn Kota trolling motors
Yamaha Outboard Install Set
- Includes washer, spacer, nut, pin
- Fits Yamaha 60-85hp 15-spline props
- Stainless steel, saltwater-ready
Best For: Replacing Yamaha outboard prop hardware on 60-85hp models
Universal Prop Tool
- Fits nine common prop nut sizes
- Deep socket helps prevent slippage
- Lightweight floating marine design
Best For: Removing propellers on outboards and stern drives with common nut sizes
Yamaha Outboard Hardware Kit
- Fits Yamaha 40-55hp 4-stroke outboards
- Includes washer, nut, spacer, and cotter pin
- Aftermarket kit with OEM equivalent 663-45987-02
Best For: Yamaha 40-55hp owners replacing prop installation hardware
Brass Inboard Prop Nut Kit
- Fits 1" and 1-1/8" inboard shafts
- Includes nylon nut, key, and cotter pin
- Brass and stainless steel construction
Best For: Inboard ski, surf, and wake boats needing a prop nut replacement
Mercury Prop Nut Kit
35-70 HP Outboard Replacement Set
- Fits Mercury 35-70 HP outboard applications
- Includes prop nut and two lock washers
- Alloy steel with precise threading
Best For: Mercury owners replacing a worn prop nut and washers
Brass Hardware Kit
Camoo 5008 Prop Nut Kit for 1" & 1-1/8" Shafts
- Brass nut, key, and stainless cotter pin
- Fits 1" and 1-1/8" inboard shafts
- Made for ski, surf, and wakeboard boats
Best For: Inboard owners needing a spare prop nut set
Outboard Prop Kit
Johnson/Evinrude Prop Hub Nut Kit
- Includes nut, cotter pin, and spacer
- Fits many 40-140 HP Johnson/Evinrude/OMC outboards
- Stainless steel parts resist corrosion
Best For: Outboard owners replacing prop mounting hardware
Trolling Motor Prop Set
3-Blade Propeller Kit with Hardware
- Includes prop, pins, nut, and spanner
- Fits ET44L, ET54L, and D65L motors
- Quiet 3-blade plastic replacement design
Best For: Compatible trolling motor owners needing a full prop replacement
Mercury-MerCruiser Hardware Fix – Prop Nut Tab Washer Kit
MerCruiser Alpha Bravo Prop Propeller Nut Tab Locking Washer Kit Mercury Mariner
Check Price On AmazonIf you’re shopping for a boat propeller repair kit to keep a prop nut from backing off, this MerCruiser and Mercury/Mariner hardware set is a straightforward replacement. It includes a new propeller nut and lock washer designed for Alpha, pre-Alpha, Bravo 1, and Mercury-Mariner 75-125HP applications, with a heavy-duty stainless steel build for marine use.
Best For: Replacing a worn prop nut and lock washer on compatible MerCruiser and Mercury-Mariner drives.
Pros:
- Includes a propeller nut and tab locking washer
- Fits Alpha, pre-Alpha, Bravo 1, and Mercury-Mariner 75-125HP setups
- Stainless steel construction helps resist marine corrosion
- Made to help prevent loosening from vibration
Cons:
- Only covers specific MerCruiser/Mercury-Mariner applications
- Does not include a full propeller service tool kit
This is a practical pick if your main issue is a loose or damaged prop nut rather than a full propeller overhaul. It focuses on securing the propeller hardware and reducing related wear, which can help lower maintenance over time.
Minn Kota Service Set – Prop Nut Hardware Kit
For a compact boat propeller repair kit aimed at quick maintenance, the Minn Kota Prop Nut package covers the basic hardware needed to remove and reinstall a trolling motor prop. It includes the prop nut, drive pin, and lock washer, and it is built with stainless steel hardware for corrosion resistance in marine fishing conditions.
Best For: Fast prop service on compatible Minn Kota trolling motors.
Pros:
- Complete hardware kit with prop nut, drive pin, and lock washer
- Supports quick removal or replacement during maintenance or damage repair
- Stainless steel hardware helps resist corrosion
- Designed for 3-1/4 inch and 3-5/8 inch diameter 12V and 24V trolling motors
Cons:
- Made for specific Minn Kota trolling motor sizes
- Not a universal outboard prop repair kit
If you need to get a trolling motor back in service with minimal hassle, this kit keeps the job simple by bundling the key pieces together. It is a good fit when you want replacement hardware instead of sourcing each part separately.
Yamaha Outboard Install Set – 60-85HP Prop Hardware
If you need a boat propeller repair kit for a Yamaha outboard, this aftermarket hardware set covers the core installation pieces in one package. It is made for Yamaha 60-85hp 4-stroke motors with 15-spline props and includes the thrust washer, spacer, washer, nut, and cotter pin, giving you the parts needed for prop installation and replacement.
Best For: Replacing Yamaha outboard prop hardware on 60-85hp models.
Pros:
- Includes thrust washer, spacer, washer, nut, and cotter pin
- Designed for Yamaha 60-85hp outboards with 15-spline props
- Stainless steel construction suits saltwater use
- OEM equivalent part reference listed as 688-45987-01
Cons:
- Aftermarket part, not OEM-branded
- Compatibility is limited to specified Yamaha engine types
This set makes sense when you want the key mounting hardware in one box rather than assembling it piece by piece. The included parts and stated fitment make it a focused solution for Yamaha prop maintenance and replacement.
Universal Prop Tool – Floating Wrench Kit
When your boat propeller repair kit needs to include the tool as well as the hardware, this universal prop wrench kit is built for removal and maintenance work. It fits nine common prop nut sizes from 17/32″ to 1-1/4″, includes multiple sockets, and is designed to help fully encase the nut, reduce slippage, and protect surrounding components during service.
Best For: Removing propellers on outboards and stern drives with common nut sizes.
Pros:
- Fits 9 common prop nut sizes, including 1-1/16″
- Extra-deep socket design helps reduce slippage
- Built-in pin helps release washers during service
- Lightweight, floating design suits marine use
Cons:
- Tool kit only; does not include replacement prop hardware
- Material details are listed as plastic, so it is not a heavy-duty metal wrench
This is a useful pick if you want a single wrench that covers common prop nut sizes across different boats. It is best suited to routine prop removal and maintenance rather than full replacement of worn propeller parts.
Yamaha Outboard Hardware Kit – 40-55hp Prop Installation Set
If you need a boat propeller repair kit for a Yamaha outboard, this hardware set covers the basic prop installation parts in one package. It is made for Yamaha 40-55hp 4-stroke motors with 13-spline props, and it replaces the key hardware pieces that hold the prop in place.
Best For: Yamaha 40-55hp outboard owners who need a replacement prop installation hardware kit.
Pros:
- Includes thrust washer, spacer, washer, nut, and cotter pin.
- Designed for Yamaha 40-55hp outboards with 13-spline tooth props.
- OEM equivalent part number 663-45987-02.
- Stainless steel construction with a 2-year manufacturer warranty description.
Cons:
- Fitment is specific, so you need to verify your engine type before buying.
- Aftermarket product, not an original Yamaha-branded kit.
This is a straightforward repair option if you want the matching hardware needed for a Yamaha prop reinstallation. It is best suited to buyers who already know their engine and prop specs.
Brass Inboard Prop Nut Kit – 1" and 1-1/8" Shaft Set
5008 Prop Nut Kit Brass Boating Accessories for 1" & 1-1/8" Inboard Propeller Shaft
Check Price On AmazonIf your boat propeller repair kit needs a nut replacement for an inboard shaft, this brass kit is aimed at common ski, surf, and wake boats. It is designed for 1-inch and 1-1/8-inch shafts and is meant to keep the prop seated tight against the tapered shaft.
Best For: Inboard ski, surf, and wake boat owners replacing a worn prop nut on a 1″ or 1-1/8″ shaft.
Pros:
- Fits many inboard brands, including Mastercraft, Nautique, Moomba, Tige, Malibu, Centurion, and more.
- Includes 1 nylon prop nut, 1 key, and 1 cotter pin.
- Made from brass and stainless steel for rust and corrosion resistance.
- Direct replacement for old or broken prop nuts.
Cons:
- Only suitable for specific inboard shaft sizes.
- Not intended for outboard motor prop hardware.
This kit makes sense when the prop nut itself is the worn or missing piece and you want a durable replacement set. Just confirm shaft size before ordering so the fit matches your setup.
Mercury Prop Nut Kit – 35-70 HP Outboard Replacement Set
For a Mercury-focused boat propeller repair kit, this prop nut set is built around common Mercury outboard applications. It is listed for 35-70 HP engines and includes the prop nut plus two lock washers, making it a practical replacement when the original nut is worn or missing.
Best For: Mercury outboard owners who need a replacement prop nut kit for 35-70 HP applications.
Pros:
- Compatible with Mercury part numbers 11-69578A1, 11-69578T1, and 11-69578Q1.
- Includes one prop nut and two lock washers.
- Made from alloy steel with a precise thread for easier installation.
- Designed for Mercury outboards in the 35-70 HP range.
Cons:
- Fitment is part-number specific, so compatibility should be checked carefully.
- More limited than a full prop hardware kit because it does not include thrust components.
This is a focused repair part for Mercury owners who mainly need the retaining nut and washers. If your issue is a damaged prop nut rather than a complete hardware refresh, this kit is a simple match.
Brass Hardware Kit – Camoo 5008 Prop Nut Kit for 1" & 1-1/8" Shafts
If you need a boat propeller repair kit for an inboard ski, surf, or wakeboard boat, this Camoo prop nut kit is a straightforward replacement option. It is built to secure the propeller to the prop shaft and is meant for 1″ and 1-1/8″ shafts on many popular inboard brands.
Best For: Inboard boat owners who want a spare prop nut set for compatible ski, surf, and wakeboard boats.
Pros:
- Includes a brass nylock nut, brass key, and stainless steel cotter pin.
- Designed for 1″ and 1-1/8″ inboard propeller shafts.
- Made from solid brass and stainless steel for long-lasting use.
- Backed by a 12-month warranty and 30-day return window.
Cons:
- Only covers prop nut hardware, not a full propeller repair kit.
- Fit is limited to specific inboard shaft sizes and applications.
- Torque guidance must be followed during installation.
This is a practical hardware replacement if your goal is to keep the propeller secured and carry a spare set on board. It is best suited to owners who already know their shaft size and need a simple, durable replacement kit.
Outboard Prop Kit – Johnson/Evinrude Prop Hub Nut Kit
This boat propeller repair kit is a compact replacement hardware set for many Johnson/Evinrude and OMC outboard motors. It combines the prop nut, cotter pin, and prop spacer needed for propeller installation or replacement, making it useful when you want a complete small-parts fix.
Best For: Johnson/Evinrude and OMC outboard owners looking for a direct-replacement prop hardware kit.
Pros:
- Includes prop nut, cotter pin, and prop spacer in one kit.
- Designed for many Johnson/Evinrude/OMC outboard motors, 40-140 HP.
- Uses stainless steel for corrosion resistance and wear resistance.
- Matches several OE and aftermarket replacement part numbers.
Cons:
- Compatibility depends on checking the OEM part number before buying.
- It is a hardware kit, not a propeller blade replacement.
- No warranty information is listed.
For owners who need the correct mounting parts rather than a full prop replacement, this kit keeps the job simple. Its direct-replacement focus makes it a practical choice when your existing hardware is worn, missing, or corroded.
Trolling Motor Prop Set – 3-Blade Propeller Kit with Hardware
If you’re shopping for a boat propeller repair kit for a trolling motor, this 3-blade replacement set is aimed at restoring performance on compatible electric units. It includes the propeller plus the small hardware and tool needed for installation, which makes it a useful all-in-one replacement pack for the right motor.
Best For: Owners of compatible ET44L, ET54L, or D65L trolling motors who need a replacement prop set.
Pros:
- Includes 1 propeller, 2 prop pins, 1 prop nut, and 1 spanner.
- 3-blade design is described as smooth, quiet, and good at cutting grass.
- Made from durable plastic for regular aquatic use.
- Compatible with ET44L, ET54L, and D65L electric trolling motors.
Cons:
- Only fits specific trolling motor models.
- Plastic construction may not suit buyers seeking metal hardware.
- No warranty is listed.
This set makes sense if you want a replacement propeller assembly rather than just a single nut or pin. It is best viewed as a model-specific repair and refresh kit for compatible electric trolling motors.
How We Picked the Best Boat Propeller Repair Kit
We prioritized kits that solve real maintenance problems: correct fitment, durable materials, complete hardware, and easy installation. For a Boat Propeller Repair Kit, the best choice is usually the one that matches your motor brand and shaft type first, then offers corrosion resistance and the right fasteners for a secure hold.
Quick Comparison
Some options are complete installation hardware kits, while others are single-purpose parts such as prop nuts, locking washers, cotter pins, or prop wrenches. If you need a full refresh after service, choose a broader kit. If you already know the worn part, a focused replacement can be more cost-effective.
Key Buying Factors for a Boat Propeller Repair Kit
Compatibility
Match the kit to your engine brand, horsepower range, shaft diameter, and prop style. Outboard, stern drive, inboard, and trolling motor systems use different hardware, and even small differences can affect fit.
Included Parts
Check whether the kit includes a prop nut, washer, spacer, cotter pin, locking tab washer, thrust washer, or wrench. A more complete kit can save time if you are replacing several worn pieces at once.
Material and Corrosion Resistance
Marine hardware should resist saltwater and freshwater corrosion. Brass, stainless, and coated alloys are common choices, but the best option depends on your motor and the manufacturer’s recommended parts.
Ease of Service
If you change props often, a proper prop wrench can matter as much as the hardware itself. A lightweight floating wrench is especially useful for dockside work and reduces the risk of losing tools overboard.
Application
Think about how you use the boat. Inboard performance boats may need more robust shaft hardware, while fishing or trolling setups may benefit from a simple replacement nut or prop kit designed for quick maintenance.
Who Should Buy Which Boat Propeller Repair Kit?
If you want the most straightforward maintenance fix, choose a complete installation hardware kit that matches your motor exactly. If your existing hardware is fine but the prop keeps loosening, a replacement nut or locking washer may be enough. Boat owners who do their own prop swaps should look closely at tool-included kits, while casual users may prefer a brand-specific replacement part with fewer compatibility questions. For a Boat Propeller Repair Kit, the safest purchase is usually the one built around your exact engine model and your most common repair need.