Don’t Be Marooned: 17 Boat Tools to Keep on Board

Don’t Be Marooned: 17 Boat Tools to Keep on Board

Wouldn't it be handy to come across hardware stores on the water? When lady luck doesn't turn in your favor, you best be prepared to make do with what's on board.

Let these tools give you the confidence to take on obstacles when they inevitably and inconveniently present themselves. Foremost, a good emergency kit is paramount. You need to make sure you and your passengers are safe and secure after misfortune strikes.

Also, since storing items with limited cargo space can clutter, it's important to be conscious not to bring too many tools and boat products on board.

Emergency Boat Tools You Need

When all attempts at maintenance fail and a survival situation is at hand, these tools will be life savers. 

1. Waterproof Flashlight

PowerSmith Floatable Floating 700 Lumen Waterproof Rechargeable Lithium-Ion Battery-Powered LED Spotlight Flashlight with Ergonomic Handle and Charger (PSL10700W), Green



If your boat suffers a failure at night, a waterproof flashlight is your best friend. It gives you clear vision to make repairs and a way to signal your presence to other boats, so make sure the flashlight has a full battery and is in operating condition.

For safekeeping, look into waterproof flashlights with lumen ratings of 500 and up (the one shown right provides 700 lumens). That way, help can see you at long distances.

It would be wise to memorize Morse code for signaling SOS with a flashlight just in case your signal cannot be interpreted from a distance.

2. Tow Line 

If you're stuck in the wonderful situation of being adrift in the water, tow lines are your ticket out (even an extra dock line can be helpful). Signal any passing boat for help by waving hands or flashlight and let them tow you back to land safely.

If they're unable to do so, you're already prepared for someone who can. I can testify to this: On a friend's Larson, having the tow line saved hours getting back via trolling motor.

Our first time on a new lake, we were trying to navigate to a fishing spot and ran into a big seaweed patch. Though sheer momentum got us past the patch, the motor overheated and wouldn't start back up. We were stuck.

Moving at a snail's pace with the trolling motor a long way from the launch, I was tempted to fashion a sail from my beach towel until we flagged down a pontoon boat for assistance. The weekend cruiser was happy to help us out and didn't mind the 30-minute tow that interrupted his schedule.

Without that line, we would have been out there for an hour or more using that puny trolling motor to get back home.

3. Jumper Cables

SUPER HEAVY DUTY 500 amp 6 gauge No Tangle Battery Booster cables 12 feet with FREE travel case Jumper Cables Extra long 12ft




Got a finicky battery that leaves you dead in the water? Jumper cables will help you get back home safely. Signal another boat for a jump or use your alternate battery to make it back to home port. These jumper cables even come with a case to protect against saltwater corrosion. 

4. Flare Gun and Flares

Flare gun kits are crucial for emergency situations when boats need to send a signal to rescuers. It's up to your preference for what flare will suit you. 

A flare gun, as well as an air horn, will be able to signal from afar and a standard flare will make enough smoke to signal an emergency situation to any passing by boats.

Also, with rare use and exposure to the elements, regularly check to be certain they're not damaged and still in good shape.

5. Fire Extinguisher 

Even surrounded by water, fire is a danger that can get out of hand. Flames can rapidly spread without the right equipment at the right time. Keeping a bucket on board is not enough. Take no chances and keep an up-to-date marine fire extinguisher

Recommended Extra Boat Tools

If the boat is safe but out of commission from one issue or another, these tools will help you stand a fighting chance at fixing most problems on the water.

6. Phillips and Flathead Screwdriver

NoCry Stubby Ratcheting Screwdriver Kit with 12-in-1 Mini Bit Set including Flathead, Hex, Torx and Pozidriv Tips




An obvious but often overlooked choice you need is a good multi-functional screwdriver, which helps to inspect repair issues under the floor or take off a panel to investigate a troubled area.

Since boating often exposes screws to the elements, cheap material screwdrivers may strip or be stripped by the screw. Ditch the dollar store cheapos! It's important to invest in suitable material like marine-grade water-resistant steel screwdrivers instead.

7. Long Needle Nose Pliers

IRWIN VISE-GRIP Long Nose Pliers with Wire Cutter, 8-Inch (2078218)




Good for fishing as well as fixing, needle nose pliers are a convenient tool that can hold a screw, pry a hook out of a fish and twist a small item into place.

They can also be used to fish out any dropped part from the bilge. Their versatility and need on a boat is virtually endless.

8. Locking Pliers

IRWIN VISE-GRIP Original Locking Pliers with Wire Cutter, Curved Jaw, 10-Inch (502L3)




Locking pliers supplement for hundreds of different-sized wrenches in one. Therefore, the ability for them to save space in this capacity makes them essential for a boat. Grip and twist any stubborn nut of any type to make a repair in a jiffy. 


Featured Boat Care Product


Motor Muffs

Check Price on Amazon - Better Boat's motor muffs can be used to flush inboard, outboard and jet engines. Test or warm up the engine before heading out on the water or remove fuel, salt and contaminates before winter storage.  


9. Ratchet and Sockets with Spark Plug Match

40 Pieces - EPAuto 1/4-Inch & 3/8-Inch Drive Socket Set with 72 Tooth Reversible Ratchet





There's no getting out a spark plug properly without its fitted socket. Keeping a ratchet set and a spare spark plug on board will save you the hassle of calling for help for an easy fix.

Also, don't forget the wobble extension (Available on Amazon) to give a little more leeway in claustrophobic repair situations. Boat engine bays are especially unforgiving because there's no dropping the part through to the ground like a car, so it pays to get the luxury of not losing your tool to the bilge.

10. A Rigging Knife

Camillus 6.5" Carbo Titanium Folding Marlin Spike, G10 Handle, VG10 Steel Blade (18670), Black




Rigging knives are perfect for boating and more useful than their commonplace counterparts. The addition of a marline spike is extremely practical for undoing pesky knots.

Though some may be content with an old folding blade, the added attachments of a rigging knife yield more utilitarian value on the water. Space saving is a must. Get more done with less. 

Don't forget to keep it sharp to cut through line if needed. If stuck in rising and rough waters with no time to untie from the dock, the knife will be essential to your boat's safety. Cut that line to save your boat!

11. Hose Clamps

Shoreline Marine Stainless Steel Universal Hose Clamp, 1/4-5/8"






Though leaks from worn houses and punctures may give you trouble, having spare hose clamps on board will be able to stop most leaks from bad seals.

Take the Phillips screwdriver and tighten these clamps down on a problem area so you can make it home to diagnose the problem. But be sure to pick up corrosion-resistant hose clamps. 

I made the mistake of putting a simple automotive hose clamp on a bilge pump hose because I noticed corrosion on the old one. Of course, I forgot about them for two years or so until lo and behold, the hose failed from a bad clamp. I didn't make the same mistake twice.

12. Multi-meter

AstroAI Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter and Ohm Volt Amp Tester ; Measures Voltage, Current, Resistance; Tests Live Wire, Continuity




The combination of water and electricity scares away boaters, but don't be afraid. A multi-meter can help diagnose electrical problems fast and painlessly. Track down that short or dead wire with ease.

Read up on the proper voltage for your boat. Since most boats use the same voltage for all appliances, it will be easy to isolate the problem. 

13. Wire Stripper

IRWIN Vise-Grip Wire Stripping Tool / Wire Cutter, 8-Inch (2078309), Multicolor





Once the problem is tracked down, quality wire strippers will do you good to have. Since precision is important in electrical, it's best to invest in a better quality pair to give you neat strips. Look for what's water resistant with multiple wire diameters to last a lifetime.

14. Electrical Tape, Wire Nuts and Extra Marine Wire

Keep these three must-haves zipped up in a bag to prevent them from straying away in the toolbox. You'll need all three for competent electrical repair work.

Using the multi-meter to first track down the problem, cut the power and carefully strip the wire as needed and make your repair.

Depending on the situation, use silicone tape or electrical tape (Available on Amazon)and/or wire nuts (Available on Amazon) to complete the connection. 

Extra wire (Available on Amazon) can be used for a full replacement. Also, keep spare boat fuses for any other electrical issues that may arise.

15. Zip Ties

Tarvol Nylon Zip Ties (Pack of 100) 8 Inch with Self Locking Cable Ties (White)






Zip ties have many uses on a boat. For one, boats move and cargo jiggles. Tie down cargo getting too unwieldy with zip ties.

Tying a zip tie on some boat anchors between the chain and a link welded to the end of the shaft can enable your anchor to be retrieved if stuck on an object on the bottom. Pulling hard enough will break the zip tie and give your boat another leverage angle to pull up the anchor.

16. Prop Wrench

Reflective water makes it difficult to see floating debris under the surface that can seriously chip or mangle the prop. However, don't let an entangled or broken prop stop your plans.

Break out a prop wrench (Available on Amazon) and a spare prop you should be keeping on the boat and give them a switch to move on with your day.

Don't forget to measure the prop nut to get the right fit. Also, if you're a klutz like me, pay a little bit extra for a floating prop wrench (Available on Amazon). Trust me, it's easier than living with the shame of dropping one overboard.

17. Moisture Meter

These meters are essential for long-term boat living. If you noticed a leak but have no idea how to track it down, a moisture meter (Available on Amazon) will do you good.

Fire it up and compare readings around the ship. The problem area will reveal itself so you can isolate it. For preventative measures before you hit the water, develop a checklist to ensure avoidable issues and repairs won't tie you up.

Don't quiver with the first sign of inconvenience on the water. If you have the tools, get to work.