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The 8 Best boat engine spare parts kits of 2025

Are you trying to find boat engine spare parts kits among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling boat engine spare parts kits on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 26 hours of research and did 43 boat engine spare parts kits tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best boat engine spare parts kits you can buy today

SaleNo. 1
Marpac New Marine Boat Motor Spare Bracket Kit 7-0387
  • SPARE OR REPLACEMENT MOTOR SUPPORT BRACKETS
  • FITS MOST TRANSOM MOTOR SUPPORT BRACKETS / TRANSOM SAVERS
  • International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions
No. 2
Hihitomorrow Complete Aluminum Anode Kit Compatible with 2004+ Mercruiser Bravo 3 III Drives Sterndrives Replace for CMBRAVO3KITA, 888761Q02, 888761Q04
  • APPLICATION: The aluminum anode kit fit for Mercruiser Bravo III sterndrives built from 2004-present. The anodes provide longer-lasting protection than zinc anodes and are for use in fresh or saltwater.
  • FUNCTION: The anodes kit provide low-cost cathodic protection for your Mercury Mercruiser boat engine, and protects your MerCruiser Bravo III Drive and engine against corrosion or pitting. Replace for OEM CMBRAVO3KITA, 888761Q02, 888761Q04.
  • PACKAGE INCLUDE: Complete aluminum anode kit includes 1 cavitation plate anode, 2 trim cylinder anode, 2 trim tab anode, 1 propeller nut anode, and 9 different spec bolts and 8 washers. This complete aluminum anode kit provides a fast and easy replacement.
  • MATERIAL: The aluminum anode kit is made of superior alloys, and provide maximum protection for boat, structures, and equipment built of iron, steel, aluminum, and other metals.
  • Satisfaction Guarantee--100% satisfaction guarantee. Please feel free to contact us if you have any questions about our product.
No. 3
Manifold Engine Block Drain Plug Kit Replaces Sierra 18-4226 for Mercruiser 22-806608a02 Compatible with GLM 13992 Pack of 5
  • FITS: Fits for Mercruiser Mercury marine engines
  • REPLACES: For Sierra 18-4226, 18 4226, 184226, for GLM 13992, for Malloy 9-41203, 9 41203, 941203, for Mercruiser 22-806608A1, 22 806608A1, 22806608A1, 22-806608A02, 22 806608A02, 22806608A02
  • CONTENT: 5 pack for Mercury Mercruiser closed cooling drain plug & 5 O-ring
  • FUNCTION: Drain plug kit used to drain your engine block and manifold
No. 4
CAPTAIN Outboard Propeller Installation Hardware Kits fit Johnson Evinrude 40-140 HP Engines, Includes Thrust Washer, Spacer, Washer, Nut and Cotter Pin
  • Service Promise-Any questions we will response in 24h! Quality and performance are guaranteed; please refer to below product description for detailed engines application
No. 5
Full Power Plus Impeller Kit For Johnson Evinrude 8-15HP Outboard With Housing 1974-UP 18-3327,394711
  • 394711 water pump repair kit fits for Johnson Evinrude 9.9-15 hp 2 Stroke & 4 Stroke
  • Replaces Johnson Evinrude OMC: 391698 386697 387610 46-02855 389112, 318875, 318999, 319989, 386685, 386886, 388139, 389114, 391388, 391689, 393560, 394771, 777801, Sierra 18-3327
  • Package Included: Impeller Pump Housing, Neoprene Impeller, Wear Plate, Pump Cup, Impeller Key, Install Bolts, "O"- Ring, Water Seal, Grommet
  • Made of extremely metal alloys and modern neoprene, designed for durability to better protect your engine, Engineered for the Longest Possible Use under tough conditions
  • If you have any questions about water pump impeller repair kit, you can ask us and we will get back to you as soon as we can
No. 6
StayCoolPumps Impeller Kit SCP-X15000 Replaces Ilmor 50H-0170 and Sherwood X15000
  • Replacement For: Ilmor 50H-0170 50H0170 Sherwood X15000, X15000-SHW
  • Fits Mastercraft GDI & 2020+ 6.0L 5.3L GDI 6.0L MPI 6.2 GDI 7.4 MPI
No. 7
Hydraulic Steering Lock, 4" Outboard Motor Steering Lock, Transom Savers for Outboard Motor Trailering/Transport, Bass Boat Accessories, 1 Pair
  • Keeps Outboard Motor in Place While Trailering - The Hydraulic Steering Locks are professionally designed to help secure your outboard during trailering. These locks can hold the boat motor in place while going down the road, the outboard motor will not rock side to side or whip back and forth while traveling/ towing or in transit on the trailer. The outboard motor stabilizer is one of the bass boat accessories to help prevent unwanted movement for your hydraulic steering for boats.
  • Effectively Protect Your Outboard - These outboard motor stabilizers fit in 4" gaps on each side of your hydraulic system steering cylinder and help keep the outboard from shifting side-to-side, keep the whole engine centered during transport, which can effectively protect the steering system, outboard, and motor supports of your bass boat.
  • Quality Construction - Each set includes two locks as shown. The transom savers for the outboard motor are made from temperature-stable/UV-resistant synthetic materials that will not scratch/damage your steering rod or cylinder seals. With a large grip hold for easy on/off. The included connecting String/cord is designed to keep the steering lock connected for easy organization and storage.
  • Simple Installation - You can just simply snap the Locks to each side of the engine hydraulic steering rams. The grips and precisely clip arc designs ensure that the steering lock device for the outboard motor can be put on and taken off in seconds. The Outboard Hydraulic Steering Locks are the must-have bass boat accessories for transporting your outboard motor.
  • Your Satisfaction is our 1st Priority - Veepeey Provides these outboard motor locks for customers to lock the boat's hydraulic steering to ONLY prevent unwanted movement when trailering. PLEASE REMOVE THE STEERING STOPS BEFORE LAUNCHING YOUR BOAT. If you have any questions, please feel free to contact us, and we will reply with a proper solution within 12 hours.
No. 8
Sierra International 18-1916 Riser Boat Engine Parts
  • Product Type: FISHING EQUIPMENT
  • Package quantity: 1
  • No batteries required
  • Package weight: 27.53 lb
No. 9
Camoo TSP-1 & TSP-2DP Transom Support Plate Kit for Top Bolt Holes Standard and Lower Bolt Holes Standard (12" x 2" & 15" X 2"), 3/8" Thickness Cast Aluminum, 2 Pack
  • APPLICATION -- TSP-1 fits for Top Bolt Holes- Standard, TSP-2-DP fits for Lower Bolt Holes- Standard. Will perfectly match the universal outboard mounting pattern used by all major manufacturers.
  • SIZE -- [ TSP-1 ]: 15" X 2", 3/8" Thickness, [ TSP-2-DP ]: 12" X 2", Holes 10", 3/8" Thickness. Package includes 2 Transom Support Plates for Top & Lower Bolt Holes- Standard.
  • Function -- Helps distributes the stress of the outboard engine mounting bolts to protect the transom. Prolong lifespan of your transom when used with today's heavy 4-Stroke outboard engines.
  • Material -- Manufactured from high quality Cast Aluminum to serve you for years to come. CNC machined for a perfect fit.
  • SATISFACTION GUARANTEE -- If you are not satisfied with Camoo products, simply return it for a full-refund in 30 days. Guarantee with 12 months warranty. No worry about buying!
No. 10
MotorGuide MGA015PB6 Mounting Isolator Kit — Absorb Shocks, Protect Electronics — Includes Corrosion-Resistant Bolts — Set of 4
  • Absorb shocks to help protect electronics
  • Ensure that electronics are not subjected to potentially damaging energy
  • Durable construction
  • Includes long, corrosion-resistant bolts
  • Set of four
No. 11
Replacement Boat Parts Clear Fire Port
  • Clear fire port
  • Installs in minutes and greatly lessens the risk of injury due to engine fires
  • Clear membrane allows you to visually inspect inside the engine compartment without opening it,adding oxygen to the fire
  • To install, just cut a 2" hole, secure with 4 - #8 flat head screws (not included)
  • Outside flange diameter - 3", Tailpiece extends into mounting hole 1/2", Flange stands off surface about 1/4"
SaleNo. 12
EUDAX 6 set Rectangular Mini Electric 1.5-3V 24000RPM DC Motor with 84 Pcs Plastic Gears,Electronic wire, 2 x AA Battery Holder ,Boat Rocker Switch,Shaft Propeller for DIY Science Projects
  • Pay attention: Please read the instructions or pictures carefully, use the correct circuit diagram to avoid short circuit, short circuit will produce high temperature and cause the battery Holder box to melt
  • Color:Siler+Black;Voltage:DC 3V;Rated Speed:24000 RPM
  • Motor Body Diameter:27mm/1.06";Mounting Hole Distance(center to center):15mm/0.59",Shaft Size:10x2.0mm/0.39"x0.08"(L*D);Motor Body Length;38mm/1.46"
  • Great fun Motor,perfect for mini fan,electric toys and science experiments etc.Will work with many power sources batteries and solar cells work perfectly
  • Package including:6pcs DC motor,6pcs battery holder,6pcs rocker switch,6pcs motor mounting Bracket,12pcs 9.8" Electronic wire,84pcs plastic gears(Random Color) ,4 pcs 4 vanes propeller,2pcs 3 vanes propeller and 40cmΦ3 Heat shrink tube
No. 13
New Mercury Mercruiser Quicksilver OEM Part # 87-13398 2 SWITCH
  • SKU: 87-133982
  • Sold Each
  • Please verify your own fitment
No. 16
SPX FLOW Johnson Pump 09-47154-01 Marine Original Impuller Thread Removal Tool for JP Impeller 09-1027BT (F5) and 09-812BT (F6), Small, Black
  • Wait the cooling system carefully. Replace impeller once a year. The impeller is a very important element for the safety and reliable operation of the engine. Its task is to ensure that seawater is constantly pumped through the cooling systems of the engine. Remember that the wheel needs to be replaced every year.
  • Johnson Pump Marines products provide continuous reliability even in the most difficult conditions and are designed to maximise efficiency while minimising energy consumption and maintaining quiet operation. With their help, the long-term maintenance of ships can be kept at the highest level and in addition, SPX FLOW technology contributes to the comfort and safety of suiters, crew and passengers
  • Make sure you only use original SPX FLOW Johnson Pump Marine wheels or renowned brands. Then you can be sure that the impeller fits your pump perfectly.
  • A special pump puller 09-950-9300 by Johnson was developed to replace the wheels. Original tool kit for quick removal and replacement of SPX FLOW Johnson pumps and similar wheels. Universal wheel puller suitable for all JP impellers with or without thread.
  • Wait the cooling system carefully. Replace impeller once a year. With the help of spare parts and instructions, you can easily replace the impeller of your pump yourself. It is recommended to replace the impeller regularly once a year or when the vacuum performance of the pump decreases. For example, if suction takes more than 30 seconds
  • Flexible wheels – functional principle vacuum is created when aligning the flexible impeller blades from the cam, suction of liquid into the pump. A rotating impeller promotes liquid from the inlet to the outlet. Thus, due to their construction, pumps with flexible impeller can promote relatively large solids
  • When the flexible impeller shovels come into contact with the cam again, they bend and the liquid comes out of the pump in an even flow. Liquids can be pumped upside down
  • Johnson Heavy Duty Bronze Universal Pump Impellers are raw water resistant and compact. These pumps have been developed for a variety of marine applications and have proven themselves in terms of quality and reliability. With excellent self-priming capacity, these pumps are ideal as cooling water pumps for marine engines, bilge pumps, deck wash pumps, fresh water pumps, fuel pumps (nitrile impeller only) and other applications
  • For general raw or fresh water applications, the standard durable neoprene rubber impeller is used. A general feature of all pumps with a flexible impeller is that they must not run dry for more than 30 seconds. Both the impeller and the seals are dependent on water for lubrication and will soon fail when running dry
  • The main advantage of a flexible impeller pump is its self-absorbency. When the blades of the impeller are pressed down and bounced back, they create their own vacuum that sucks liquid into the pump. A dry Johnson pump can lift water up to 3 metres. Thus, a flexible impeller pump, which is used for engine cooling, does not need to be arranged under the water line or manually sucked up
No. 17
GHmarine 70981A3 3-4" Upper Exhaust Hose Bellow for MerCruiser Stern Drive 3.0 4.3 5.0 5.7 L Engines V6 V8 Sierra 18-2762
  • Upper Exhaust Bellow with 2 pcs SS316 clamps for MerCruiser Stern Drive
  • Fits 165/170/3.7L/180/190/470/485/488 manifolds(1980 - 1989) Chevy 305/350/377 (1983 - up) Big block 454/502 (1981 - up) V6 229/262 (1983 - up)
  • After market Ref: MerCruiser 70981A3, Mallory Marine 9-72808, Sierra 18-2762, GLM 89070
  • Installs on to 3 inch 15 degree center mounted risers with 4 inch elbow
  • Please check your outboard model, serial number and year carefully before you purchase. Delivery Guaranteed Timeliness, Safe and Convenient
No. 19
Boat Engine 35370-ZZ5-D02 Up and Down Lift Power Trim Tilt Switch for Honda Outboard Side Remote Control Box 24800-ZZ5-A02
  • Fit OEM Number: 35370-ZZ5-D02
  • FitHonda Outboard Side Remote Control Box 24800-ZZ5-A02
  • Fitment: Side control lift switch is especially designed for Honda Outboard Side Control Box.
  • If you are unsure, please provide your engine serial number.
No. 20
Replacement Boat Parts 2" ID White Trim Ring
  • 2" ID White Trim Ring White trim ring installs using impact barbs, no screws needed!
  • Fits snugly into a 2-1/2" hole.
  • Just apply some sealant (nothing too permanent, please) and tap into place.
  • Dimensions: ID of trim ring - 2", OD of flange - 3-1/4", Tailpiece length - 1/2"
  • Made in the USA!

How to choose a good boat engine spare parts kits

Does the idea of finding a fantastic boat engine spare parts kits make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in boat engine spare parts kits. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top boat engine spare parts kits products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top boat engine spare parts kits on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top boat engine spare parts kits brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top boat engine spare parts kits based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the boat engine spare parts kits were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good boat engine spare parts kits, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your boat engine spare parts kits.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting boat engine spare parts kits for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our boat engine spare parts kits. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what boat engine spare parts kits should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on boat engine spare parts kits.