Best Boat Engine Spare Part Kits of 2025

Luke Dobson Avatar
Luke Dobson
Last Updated: 10 Feb 2025

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Boat engine spare part kits are essential for any boat owner who wants to keep their engine running smoothly. These kits contain a variety of spare parts that are commonly needed for routine maintenance or unexpected repairs. From oil filters to spark plugs, gaskets to fuel pumps, these kits ensure that you have the necessary parts on hand to quickly and easily fix any issues that may arise. By having a spare part kit on board, boat owners can avoid costly delays and get back on the water as soon as possible.

At a Glance: Our Top Picks

AKORD Outboard Motor Safety Kill Switch Cord Cover #TOP 1
AKORD Outboard Motor Safety Kill Switch Cord
ftb score rating icon 9.8
NZnaturally Pure New Zealand Raw Lanolin for Maintenance Cover #TOP 2
NZnaturally Pure New Zealand Raw Lanolin for Maintenance
ftb score rating icon 9.7
Stainless Steel Skeg Guard for Mercury Alpha I Cover #TOP 3
Stainless Steel Skeg Guard for Mercury Alpha I
ftb score rating icon 9.5

Top 10 Boat Engine Spare Part Kits

#TOP 1

AKORD Outboard Motor Safety Kill Switch Cord

MO-41
AKORD Outboard Motor Safety Kill Switch Cord Cover
AKORD 2pcs Outboard Motor Engine Lanyard Kill Stop Switch Safety Cord New for Yamaha, Red

The AKORD Kill Switch Cord is an essential safety tether for your outboard motor. It fits most brands, including Yamaha and Honda, providing versatility for users of various engines. Made from durable ABS and nylon, it ensures reliability while boating. The striking red colour enhances visibility, making it easy to locate in emergencies. With two switch safety tethers included, you can have a spare on hand, giving you peace of mind while enjoying your time on the water.

What We Like
Fits multiple outboard brands
Durable materials used
High visibility red colour
Includes two safety tethers
#TOP 2

NZnaturally Pure New Zealand Raw Lanolin for Maintenance

NZnaturally
L05100
100g
NZnaturally Pure New Zealand Raw Lanolin for Maintenance Cover
NZnaturally Pure New Zealand Raw Lanolin for Industrial Strength Rust Proofing and Mechanical Maintenance (100, grams)

NZnaturally Raw Lanolin serves as an excellent lubricant, reducing friction and ensuring your machinery operates smoothly. It acts as a corrosion shield, forming a water-repellent barrier that protects your equipment from damage in marine environments. With its rust prevention capabilities, you can extend the lifespan of your machinery, keeping it in top condition. Additionally, this product offers easy mould release, allowing you to remove casts effortlessly, saving you both time and effort in your maintenance tasks.

What We Like
Effective lubricant for machinery
Corrosion protection in marine settings
Extends machinery lifespan
Facilitates easy mould release
#TOP 3

Stainless Steel Skeg Guard for Mercury Alpha I

besttruck
27031 Skeg Guard
silver
27031
Stainless Steel Skeg Guard for Mercury Alpha I Cover
27031 Stainless Steel Skeg Guard Fix Damaged Skeg Fits for Mercury Mercruiser Alpha I Generation II 1991-Present

The Besttruck Skeg Guard is designed to protect your Mercury Mercruiser Alpha I Generation II from corrosion and wear. Its wide application ensures a perfect fit for models from 1991 to present. You will appreciate the powerful function of the thickened 3mm lower wear tab, which reduces ramp dragging during river running, providing a more durable alternative to welding. The drain hole design prevents corrosion and freezing, ensuring longer wear and maintaining performance without any noticeable drag.

What We Like
Wide compatibility with Mercury models
Durable 18-gauge stainless steel
Reduces corrosion and wear
Cost-effective compared to welding
No performance compromise
#TOP 4

NQEUEPN Flo-Torq II Hub Kit for Mercury

NQEUEPN
1021470
silver, black
NQEUEPN Flo-Torq II Hub Kit for Mercury Cover
NQEUEPN 835257Q1 Flo-Torq II Hub Kit, Propeller Hub Kit Replacement for Mercury/Mariner Outboard Boat Motos, Mercury Mercruiser Alpha/Alpha One/Bravo One

The NQEUEPN Hub Kit is an essential replacement for your Mercury or Mariner outboard motors. It includes a forward thrust washer, driving sleeve, aft adaptor, tabwasher, and propeller nut, ensuring you have everything needed for a smooth installation. This kit cushions and protects your drivetrain from impacts, thereby enhancing durability. It's easy to use, making it ideal for replacing old or damaged propellers, ensuring you can quickly get back on the water with confidence.

What We Like
Includes all necessary components
Protects drivetrain from impacts
Easy to install
Compatible with various models
#TOP 5

Bessy Shop Engine Kill Switch Lanyard

Bessy Shop Engine Kill Switch Lanyard Cover
Bessy shop Engine Stop Switch Key Lanyard,Boat Engine Kill Stop Lanyard Emergency Kill Switch Lanyard Floating Safety Engine Lanyard Outboard Switch Emergency Stop Lanyard Cord with 7 Keys

The Bessy Shop Kill Switch offers premium quality with its durable ABS plastic construction, ensuring it withstands the rigours of marine use. Installation is a breeze, allowing you to quickly mount it on your engine stop switch key, saving you valuable time. With seven keys included, you can connect multiple board engines simultaneously, enhancing your work efficiency. Its flexible, extendable design features a swivel snap hook, preventing tangles and ensuring safe use without risk of injury.

What We Like
Durable ABS plastic material
Easy to install
Includes 7 keys
Flexible and tangle-free design
#TOP 6

Yoursme 27031 Skeg Protector Kit

Y-M-27031
Silver
Yoursme 27031 Skeg Protector Kit Cover
27031 Skeg Guard Skeg Protector Kit Marine-Grade Stainless Steel Replacement for Mercury Mercruiser Alpha I Generation II 1991-2023

The Yoursme Skeg Protector offers a reliable solution for safeguarding your Mercury Mercruiser Alpha I Generation II skeg from harsh ocean conditions. Its design allows for easy installation over your existing skeg, providing ultimate protection whether you are aiming to shield a new skeg or repair an existing one. The 3mm thickened lower wear tab ensures optimal performance during river riding, while a strategically placed drain hole prevents corrosion and freezing. Made from durable marine-grade stainless steel, this kit promises long-lasting protection.

What We Like
Easy installation in 10 minutes
Durable marine-grade stainless steel
Prevents corrosion and freezing
Protects against harsh marine conditions
Ideal for repair and protection
#TOP 7

15 Pcs Drain Plug Seal Gasket Set

A-15pcs-blue-board-plug-US
15 Pcs Drain Plug Seal Gasket Set Cover
15 Pcs Lower Unit Drain Plug Seal Gasket, 3/8-16 Gearcase Lube Oil Drain Screw Washer Replacement Compatible with Mercury Outboard Evinude Mercruiser Outdrive Tohatsu Mariner Outboards 12-19183-3

The CKANDAY Drain Plug Gaskets are compatible with a wide range of inboard and outboard motors, ensuring a secure fit for your 3/8-16 drain and fill screws. Made from high-quality non-asbestos sealing material, these gaskets effectively prevent gear oil from leaking, safeguarding your gearcase from potential damage. With an outer diameter of 14.2 mm, the gaskets create a tight seal that keeps oil in and water out. This set includes 15 gaskets, providing excellent value for your replacement needs.

What We Like
High-quality sealing material
Compatible with various motors
Effective leak prevention
Good value with 15 pieces
#TOP 8

FASWORX Continuity Circuit Kit for MerCruiser

FASWORX
silver
FASWORX Continuity Circuit Kit for MerCruiser Cover
FASWORX Motor Engine Elecrical Grounding Continuity Circuit Kit compatible with Mercury MerCruiser Alpha Bravo 99940A2

The FASWORX Continuity Kit is designed specifically for MerCruiser engines, providing a new grounding circuit that replaces the part # 99940A2. This kit is compatible with a range of models from 1983 to present, ensuring a perfect fit for your boat's sterndrive and transom assembly. By meeting OEM specifications, you can trust its quality and performance. The included instructions make installation straightforward, helping you get your engine back in top condition efficiently.

What We Like
Compatible with various MerCruiser models
Meets OEM specifications
Easy installation instructions provided
Replaces outdated grounding circuits
#TOP 9

2Pcs Universal Safety Kill Switch Lanyard

SXL-SEB0207
2Pcs Universal Safety Kill Switch Lanyard Cover
2Pcs Universal Safety Kill Stop Switch Connector Lanyard Cord Replace EW2-68348-00-00 Compatible with Yamaha Jet Ski WaveRunner WaveVenture WaveRaider WaveJammer WaveBlaster FX140

The Yamaha Safety Kill Lanyard offers a reliable replacement for your boat's ignition emergency kill switch. Made from high-quality polyurethane, rubber, and nylon fibre, it ensures durability and waterproof protection, giving you peace of mind on the water. The coiled design is both extendable and flexible, allowing it to stretch to nearly 47 inches, which enhances usability. Importantly, it connects you to the boat's ignition switch, ensuring the engine stops if you are thrown overboard, thereby improving your safety while enjoying your watercraft.

What We Like
High-quality materials
Flexible and extendable design
Enhances safety on water
Easy to attach and use
#TOP 10

20pcs Drain Plug Seal Washers for Marine

PEUTIER
1003018
blue
20pcs Drain Plug Seal Washers for Marine Cover
20pcs Gearcase Drain Plug Seal Washer Gaskets 26-830749, Blue Lower Unit Grease Gaskets Strong Drain Plug Sealing Washer Compatible with Mercury Marine/Mercruiser

The PEUTIER Drain Plug Washers come with 20 high-quality gaskets that ensure you have enough for your needs. Made from asbestos-free materials, these washers are strong and reliable, providing peace of mind during use. They are designed to be compatible with Mercury and Mariner outboards, which makes them versatile for various marine applications. With excellent sealing capabilities, these gaskets prevent water from seeping into the gearbox, safeguarding against potential damage and ensuring your engine runs smoothly.

What We Like
Durable asbestos-free material
Compatible with popular marine brands
Excellent sealing for reliability
Prevents lubricant leakage
Supports smooth engine operation
Buying Guide Image
Editor's Notes

During our boat engine spare part kit research, we found 306 boat engine spare part kit products and shortlisted 10 quality products. We collected and analyzed 3,068 customer reviews through our big data system to write the boat engine spare part kits list. We found that most customers choose boat engine spare part kits with an average price of £14.10.

The boat engine spare part kits are available for purchase. We have researched hundreds of brands and picked the top brands of boat engine spare part kits, including AKORD, NZnaturally, besttruck, NQEUEPN, Bessy shop. The seller of top 1 product has received honest feedback from 612 consumers with an average rating of 4.8.

Written by
Luke Dobson Avatar

Luke is a runner, a climber, hiker, hunter, and a lot more. Luke Dobson is Celtic-born and has lived most of his life in Scotland. However, his sporting endeavours have taken him to several countries around Europe. He serves as a tour guide for countless companies and owns a couple of gyms and recreational centres in Scotland. Luke Dobson is proficient in 7 different languages. He maintains many sport article columns where he shares his wealth of experience in the sport industry.