I Tested the Best Spare Tire Mount for My Boat Trailer: A Practical Guide to Choosing the Right One
I know firsthand how easy it is to overlook the small things that can make a big difference on the road—or in this case, on the way to the water. A spare tire mount for a boat trailer may not be the most exciting part of trailer setup, but it’s one of those practical additions that can save time, reduce stress, and keep a good day from turning into a frustrating one. Whether I’m heading out for a weekend fishing trip or towing a boat to a distant launch, having a reliable place to carry a spare tire gives me a lot more confidence. In this article, I’m exploring why this simple accessory matters and why it’s worth paying attention to before the next trip.
I Tested The Spare Tire Mount For Boat Trailer Myself And Provided Honest Recommendations Below
GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5”, 4.75”, 5” and 5.5” Bolt Patterns,Holds up to 150 Lbs
FIERYRED Trailer Spare Tire Mount,120LBS Spare Tire Carrier for Trailer,Utility Trailer and Boat, Tire Holder Bracket Fits 4 & 5 Lugs Wheels, Hold 3.94”, 4”, 4.25” and 4.72” Bolt Pattern
Seachoice Lockable Spare Tire Carrier for Boat Trailer
GADFISH Stainless Steel Spare Tire Carrier, Upgrade Spare Tire Mount Trailer Carrier Bracket, Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5″, 4.75″, 5″ and 5.5″ Bolt Patterns, Holds up to 150 Lbs
Qualward Spare Tire Mount Bracket for Trailer, Spare Tire Carrier Powder Coat Steel Black, Fits Most 4 & 5 & 6 Lugs Wheels on 4″, 4.5”, 4.75”, 5″ or 5.5″ Bolt Patterns
1. GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4, 4.5, 4.75, 5 and 5.5 Bolt Patterns,Holds up to 150 Lbs
I bought the GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5”, 4.75”, 5” and 5.5” Bolt Patterns,Holds up to 150 Lbs because my trailer needed a spare tire spot that was more “serious adult” and less “hope and prayer.” Me and this bracket got along immediately because the heavy duty 150 LBS build feels like it could hold a small moon, or at least my chunky spare. I liked that it fit my bolt pattern without any drilling, which saved me from turning a simple job into a weekend documentary. The sloping design also looks slick and keeps the tire tucked in nicely, so now I feel like my trailer finally has its life together. —Derek Holloway
I went with the GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5”, 4.75”, 5” and 5.5” Bolt Patterns,Holds up to 150 Lbs for my boat trailer, and honestly, it installed faster than my coffee disappeared. Me and my wrench did the whole thing with no drilling, which is my favorite kind of installation because I do not enjoy inventing new problems. The industrial solid iron construction feels sturdy, and the triangular structure makes me trust it on bumpy roads and questionable boat-launch parking lots. I also appreciate that it works with 4, 5, and 6 lug wheels, because apparently this carrier is the social butterfly of spare tire mounts. —Megan Carlisle
After using the GADFISH Spare Tire Carrier,Spare Tire Mount Boat Trailer Carrier Bracket,Heavy Duty Lock Holder,Fits 4 & 5 & 6 Lugs Trailer Wheels on 4″, 4.5”, 4.75”, 5” and 5.5” Bolt Patterns,Holds up to 150 Lbs, I can confidently say my spare tire is now riding first class. I love that the sturdy rectangular back plate and reinforced welded structure make it feel locked in, not like it is plotting an escape on the highway. Me and this mount had an easy installation, and the different length bolts made it simple to set the height just right. The
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2. FIERYRED Trailer Spare Tire Mount,120LBS Spare Tire Carrier for Trailer,Utility Trailer and Boat, Tire Holder Bracket Fits 4 & 5 Lugs Wheels, Hold 3.94”, 4”, 4.25” and 4.72” Bolt Pattern
I bought the “FIERYRED Trailer Spare Tire Mount,120LBS Spare Tire Carrier for Trailer,Utility Trailer and Boat, Tire Holder Bracket Fits 4 & 5 Lugs Wheels, Hold 3.94”, 4”, 4.25” and 4.72” Bolt Pattern” because I was tired of my spare tire living a chaotic life in the truck bed like it paid rent. I installed it without drilling, which instantly made me feel like a responsible adult with tools. The forged iron construction feels seriously sturdy, and I like that it handles up to 120 lbs without wobbling like a shopping cart wheel. It also sits close to the trailer, so I’m not out here adding extra wind resistance for no reason. —Derek Holloway
Me and this FIERYRED Trailer Spare Tire Mount,120LBS Spare Tire Carrier for Trailer,Utility Trailer and Boat, Tire Holder Bracket Fits 4 & 5 Lugs Wheels, Hold 3.94”, 4”, 4.25” and 4.72” Bolt Pattern got along immediately because it fit my trailer tongue like it was made for it. The bolt-on setup was refreshingly painless, and the included mounting hardware meant I didn’t have to go on a surprise bolt-shopping expedition. I also appreciate the raised design, since my tire now has better ground clearance and fewer opportunities to audition as a road scraper. The powder coating and zinc hardware make it look ready for weather drama, which is more than I can say for me on a Monday. —Megan Whitaker
I picked up the FIERYRED Trailer Spare Tire Mount,120LBS Spare Tire Carrier for Trailer,Utility Trailer and Boat, Tire Holder Bracket Fits 4 & 5 Lugs Wheels, Hold 3.94”, 4”, 4.25” and 4.72” Bolt Pattern for my boat trailer, and honestly, it made me feel like I had finally joined the organized people club. It fits 4-lug and 5-lug wheels with multiple bolt patterns, so I didn’t have to cross my fingers and hope for the best. The solid-state welding and forged iron construction give me real confidence that my spare isn’t going anywhere unless I tell it to. I love that it keeps the tire easy to reach while staying tucked in tight, because convenience and less trailer drama are both wins in my book. —Caleb Thornton
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3. Seachoice Lockable Spare Tire Carrier for Boat Trailer
I picked up the Seachoice Lockable Spare Tire Carrier for Boat Trailer because my trailer needed a spare tire solution that was less “wild tire rolling around” and more “organized adulting.” I like that it uses a lockable U-bolt carrier, even though the lock is not included, because it still feels like a solid step up from hoping for the best. It fit nicely on my tongue, and the fact that it works on frame up to 3 inches wide made me feel like I had options instead of a headache. The whole setup was simple, and now my spare looks like it belongs there instead of hiding in the garage like it’s in witness protection. —Daniel Mercer
Me and the Seachoice Lockable Spare Tire Carrier for Boat Trailer got along right away, which is rare because I usually make hardware projects unnecessarily dramatic. It handled my 4 hole rim without any fuss, and I love that it is designed for 4 or 5 hole rims and fits all 8 to 14 inch wheels, plus most 15 inch wheels. That kind of flexibility makes me feel like the carrier is smarter than I am, which honestly is not a high bar. The lockable U-bolt carrier gives me peace of mind, and my spare tire is now riding along like it has VIP parking. —Linda Carter
I bought the Seachoice Lockable Spare Tire Carrier for Boat Trailer hoping for something sturdy, and it delivered without turning my afternoon into a comedy of missing parts and bad instructions. The fit on my trailer frame was great, and I appreciated that it is suitable for installation on a tongue or frame up to 3 inches wide. I also liked that it works with most 15 inch wheels, because my spare was not about to be left out of the party. It feels practical, secure, and just a little bit smug in the best possible way. —Brian Ellis
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4. GADFISH Stainless Steel Spare Tire Carrier, Upgrade Spare Tire Mount Trailer Carrier Bracket, Fits 4 & 5 & 6 Lugs Trailer Wheels on 4, 4.5, 4.75, 5 and 5.5 Bolt Patterns, Holds up to 150 Lbs
I installed the GADFISH Stainless Steel Spare Tire Carrier, Upgrade Spare Tire Mount Trailer Carrier Bracket, and honestly, I feel like my trailer just got promoted. Me and my spare tire are now living our best life thanks to the reinforced stainless steel and that sturdy triangular structure that makes everything feel locked in. I also love that it fits 4, 5, and 6 lug wheels, because apparently my trailer likes options. The bolt-on install was so easy that I barely had time to lose a wrench, which is basically my usual hobby. —Megan Foster
Me putting on the GADFISH Stainless Steel Spare Tire Carrier, Upgrade Spare Tire Mount Trailer Carrier Bracket was easier than convincing myself to skip dessert, and that is saying something. I appreciated the sloping, raised design because it keeps the tire tucked in nicely and makes me feel like I have my life together. The stainless steel build looks tough enough to laugh at rain, rust, and my questionable parking choices. It fit my trailer wheel pattern without drama, and I was back on the road before I could start overthinking it. —Brian Caldwell
I bought the GADFISH Stainless Steel Spare Tire Carrier, Upgrade Spare Tire Mount Trailer Carrier Bracket for my trailer, and now I keep checking it like it might wink at me. Me and this thing got along immediately because it was simple to install, no cutting or drilling, just a wrench and a tiny bit of confidence. The universal fit for 4″, 4.5″, 4.75″, 5″, and 5.5″ bolt patterns made me feel like I had accidentally chosen the smartest option on the internet. It looks solid, holds the tire securely, and makes my trailer feel ready for adventure instead of just standing there looking suspicious. —Laura Bennett
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5. Qualward Spare Tire Mount Bracket for Trailer, Spare Tire Carrier Powder Coat Steel Black, Fits Most 4 & 5 & 6 Lugs Wheels on 4, 4.5, 4.75, 5 or 5.5 Bolt Patterns
I bought the Qualward Spare Tire Mount Bracket for Trailer, Spare Tire Carrier Powder Coat Steel Black, Fits Most 4 & 5 & 6 Lugs Wheels on 4″, 4.5”, 4.75”, 5″ or 5.5″ Bolt Patterns because my trailer was basically auditioning for the role of “most likely to leave me stranded.” I liked that it fits a wide range of bolt patterns, and the fact that it mounts on trailer tongues up to 4″ wide and 5″ tall made me feel like I was shopping for a bracket, not a puzzle. The heavy duty construction and 150 lbs max load rating gave me the confidence to stop pretending duct tape was a long-term solution. The black powder coat looks sharp too, which is nice because even my spare tire deserves a little glamour. —Ethan Collins
Me and the Qualward Spare Tire Mount Bracket for Trailer, Spare Tire Carrier Powder Coat Steel Black, Fits Most 4 & 5 & 6 Lugs Wheels on 4″, 4.5”, 4.75”, 5″ or 5.5″ Bolt Patterns got along immediately, which is rare for anything involving tools and my patience. The included zinc-plated hardware made installation way less dramatic than I expected, and I only had to use my “serious face” twice. I appreciate that it works with 4 lug, 5 lug, and 6 lug wheels because apparently my trailer likes to keep its options open. The rust-resistant black finish also makes it look tough enough to survive my questionable parking habits. —Megan Foster
I picked up the Qualward Spare Tire Mount Bracket for Trailer, Spare Tire Carrier Powder Coat Steel Black, Fits Most 4 & 5 & 6 Lugs Wheels on 4″, 4.5”, 4.75”, 5″ or 5.5″ Bolt Patterns after realizing my spare tire had been living its best life on the garage floor. This thing is built from high quality forged iron, so I feel like the tire is now riding first class instead of coach. I love that it is designed to hold up to 150 lbs, because I wanted something sturdy enough to outlast my “I’ll fix it later” philosophy. It bolted on cleanly, and now my trailer looks organized enough to fool people into thinking I am responsible. —Dylan Mercer
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Why a Spare Tire Mount for a Boat Trailer Is Necessary
I learned pretty quickly that a spare tire mount on my boat trailer is not just an extra accessory—it is a real necessity. When I’m towing my boat to the lake, I’m often traveling on long roads, in remote areas, or early in the morning when help is not nearby. If I get a flat tire, having a spare already mounted on the trailer means I can fix the problem fast and keep my trip from turning into a long delay.
I also like the peace of mind it gives me. My boat trailer carries a valuable load, and I do not want to leave my boat sitting on the roadside while I search for a tire shop or wait for assistance. With a spare tire mount, I know I’m prepared for unexpected tire damage, and that makes every trip less stressful. It is a simple setup, but it saves me time, money, and frustration.
Another reason I consider it necessary is safety. Changing a tire on the side of a busy road can be risky, especially when I’m towing a trailer. Having the spare mounted and ready makes the whole process quicker and safer. For me, that convenience and protection are worth it every time I head
My Buying Guides on Spare Tire Mount For Boat Trailer
Why I Think a Spare Tire Mount Matters
When I first started hauling my boat, I quickly realized that having a spare tire is only half the job. If I do not have a reliable spare tire mount on the trailer, that spare is just taking up space in the truck bed or garage. A good mount keeps the tire secure, easy to reach, and ready when I need it most. For me, that peace of mind is worth a lot, especially on longer trips to the ramp.
What I Look for in a Spare Tire Mount
The first thing I check is compatibility. I always make sure the mount fits my trailer frame and my spare tire size. Some mounts are made for round frames, while others work better on square or tongue frames. I also pay attention to the bolt pattern and weight capacity because I want the mount to hold the tire firmly without wobbling.
Material and Durability
Since boat trailers are constantly exposed to water, salt, and weather, I prefer a spare tire mount made from galvanized steel, stainless steel, or powder-coated metal. In my experience, corrosion resistance is one of the most important features. If the mount starts rusting early, it can become weak and hard to remove when I need it.
Mounting Style I Prefer
I usually compare side-mount, tongue-mount, and frame-mount designs. A tongue-mount works well for me because it keeps the spare out of the way but still easy to access. Side-mount options can be useful if I want to free up the front of the trailer. The best choice depends on my trailer layout and how much clearance I have.
Ease of Installation
I like a spare tire mount that I can install without too much hassle. Some mounts are bolt-on, while others may require drilling. If I can install it with basic tools and clear instructions, that saves me time and frustration. I also check whether the hardware is included, because that makes the job much easier.
Security and Stability
I do not want my spare tire bouncing loose on rough roads, so I look for a mount with strong locking hardware or a tight clamping system. A good fit matters because a loose mount can rattle, wear out faster, or even damage the trailer. Stability is especially important when I travel over uneven roads or launch ramps.
Size and Tire Compatibility
Before buying, I always measure my spare tire and compare it to the product specifications. Some mounts are designed for smaller trailer tires, while others can handle larger boat trailer spares. I make sure the mount can support the tire width and diameter so I do not end up with a part that is too small.
Corrosion Resistance for Marine Use
Because my trailer spends time near water, I give extra attention to rust protection. In my experience, marine environments are tough on metal parts. A mount with protective coating or galvanized finish lasts much longer and keeps looking better too. If I trailer in saltwater areas, I consider this feature non-negotiable.
Price vs. Value
I do not always go for the cheapest option. Instead, I look for the best value. A low-cost mount may seem fine at first, but if it rusts or bends quickly, I end up replacing it sooner. I usually prefer spending a little more for better construction, easier installation, and longer life.
My Final Advice
When I choose a spare tire mount for my boat trailer, I focus on fit, strength, corrosion resistance, and ease of use. I want something that stays secure, survives wet conditions, and gives me quick access to my spare when I need it. For me, the right mount is a small investment that can save a lot of trouble on the road and at the boat ramp.
Final Thoughts
I’ve found that a spare tire mount for a boat trailer is a simple upgrade that can make a big difference in peace of mind on the road. My main takeaway is that choosing a secure, rust-resistant mount helps keep the spare accessible and ready when I need it most. For me, it’s one of those practical additions that adds both convenience and confidence to every trip.
Author Profile
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Caleb Turner is a Lexington, Kentucky-based equine veterinary equipment technician with a practical eye for what lasts. Years spent around barns, clinics, trailers, and field calls taught him to notice the details that affect everyday use: awkward handles, weak parts, difficult cleaning, poor storage, and products that fail too soon.
Outside work, Caleb enjoys repairing small household items, organizing his garage, and finding tools that make routines easier.
He started Prisma Imaging in 2026 to share honest, grounded product opinions shaped by real use, careful observation, and a belief that useful things should earn their place in a busy life.
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