Best 13 Inch Boat Trailer Tires for Safe Towing and Easy Replacement
Looking for durable 13 inch boat trailer tires that deliver steady towing and easy setup? This guide highlights five top options suited for fishing and pontoon trailers, utility trailers, and other small to mid-size setups. Each pick balances load capacity, tire type, and fitment details to help you choose the right tire and wheel combo. The buyers most likely to benefit are those upgrading aging bias ply tires, converting to radial tires for better stability, or equipping a matching wheel-and-tire assembly for quick, DOT-approved use.
Below is a quick comparison of the chosen products. Use it to quickly gauge which option best fits your boat trailer, then read the product sections for details on who each tire is best for and why it was selected.
| Product | Best For | Wheel Type |
|---|---|---|
| eCustomrim ST175/80D13 Bias Ply 13″ White Wheel (2-Pack) | Budget-minded trailers needing reliable bias ply performance | 5 Lug, 13×4.5″ |
| Free Country ST175/80R13 8-Ply Radial (2-Pack) | Better stability and tread life with radial construction | Bias-free radial design, 13″ wheel |
| eCustomrim Radial ST175/80R13 13″ White Spoke Wheel (2-Pack) | Radial option with white spokes for appearance and longevity | 13×4.5″ 5-lug |
| eCustomrim ST175/80D13 B78-13 White Wheel Assembly | DOT-approved complete assembly for quick install | 13×4.5″ 5-lug |
| eCustomrim ST175/80D13 175/80 13″ White Wheel (2-Pack) | Value-focused set with familiar bias ply sizing | 13×4.5″ 5-lug |
eCustomrim ST175/80D13 Bias Ply 13 Inch White Wheel (2-Pack)

Features: Bias ply trailer tire rated for 1360 lbs max load and 50 PSI, with a 24.4″ overall diameter and Load Range C. Includes 13×4.5″ rim with 5 lug on a 4.5″ center bolt pattern. DOT-approved assembly with a 2-year warranty and roadside assistance.
Best for: Budget-conscious trailer owners who want a ready-to-use bias ply build. This option suits boats that primarily tow on highways or well-paved ramps where standard bias performance is adequate. Cautions: Bias ply tires can wear faster than radials on rough surfaces; expect standard fuel economy and wear patterns consistent with bias designs.
Free Country Premium Trailer Tires ST175/80R13 8-Ply

Features: Set of 2 New Premium Quality ST175/80R13 Radial Tires with full nylon cap ply overlay and a Scuff Guard ring on the tire wall for better side and rim protection. Radial construction supports smoother rolling and longer wear in varied towing conditions.
Best for: Trailers requiring improved stability, longer tread life, and enhanced sidewall protection. Choose this if you will travel on mixed roads and need better resistance to rim scuffs. Cautions: Radials can be pricier than bias ply; ensure compatible wheel design for radial tires.
eCustomrim Radial ST175/80R13 13 Inch White Spoke Wheel

Features: Radial tire rated for 1610 lbs max load and 65 PSI, with a 23.9″ overall diameter. 13×4.5″ rim with 3.19″ center bore and 5 lug pattern. DOT-approved assembly with a 6-year warranty and roadside assistance.
Best for: Boat trailers that demand higher load capacity and stable handling at highway speeds. The combination of radial performance and a long warranty makes it a strong long-term choice. Cautions: The white spoke design may require extra cleaning to maintain appearance.
eCustomrim ST175/80D13 175/80 White Wheel Assembly

Features: Bias ply tire rated for 1360 lbs max load and 50 PSI, 24.4″ overall diameter, Load Range C. Rim is 13×4.5″ with a 3.19″ center bore and 5 lug pattern. DOT-approved with a 2-year warranty and roadside assistance.
Best for: Value-focused buyers needing a complete wheel-and-tire assembly in a single package. Useful for quick swap-outs and standardized trailer configurations. Cautions: Bias ply performance may not match radial tires in all conditions, particularly in hot weather or heavy road-use.
eCustomrim 2-Pack Trailer Tires ST175/80D13 Load Range C

Features: Two tires in a pack, bias ply construction rated for 1360 lbs max load and 50 PSI with 24.4″ diameter. Includes a 2-year warranty with roadside assistance. Rim details are consistent with 13×4.5″ 5-lug setups.
Best for: Budget upgrades when a straightforward bias ply option is preferred. Cautions: Not ideal for high-speed highway towing long-term compared to radial tires.
Buying Guide: Key Factors To Consider
What matters most when choosing 13 inch trailer tires for a boat trailer is matching tire type to your towing conditions and ensuring wheel compatibility. Here are practical questions and answers to guide decisions.
Do I need bias ply or radial tires for a boat trailer?
Bias ply tires are often cheaper and suitable for light-duty towing and paved roads. Radial tires generally provide better stability, longer tread life, and improved durability on varied surfaces and longer trips. If your trips involve highway speeds and mixed roads, radial is usually the better choice. If you stay mostly on smooth ramps and local roads, bias ply can be sufficient.
How important is load rating and PSI?
Always verify the maximum load in pounds and the recommended tire pressure (PSI). Match these to your boat’s weight and trailer capacity. Exceeding load ratings boosts the risk of tire failure. In the products listed, loads range from about 1360 lbs to 1610 lbs with inflation limits around 50-65 PSI, aligning with standard small-trailer guidelines.
Is a complete tire-and-wheel assembly advantageous?
Yes, a DOT-approved complete assembly simplifies installation and ensures proper lug alignment and fit. It’s especially helpful for first-time trailer owners or those replacing damaged wheels and tires from a single, verified source.
What wheel size and lug pattern should I expect?
Most 13 inch trailer setups use a 13×4.5″ wheel with a 5-lug pattern on 4.5″ centers. Center bore is typically around 3.19″. Confirm your trailer hub compatibility before ordering to avoid mismatches with lug pattern or center bore.
What about appearance and durability?
White wheels look classic on many boat trailers, but they require more maintenance to keep clean. Radial tires with scuff guards and protective features help preserve rims during frequent launching and retrieving operations. Choose based on aesthetics, maintenance willingness, and expected usage.
How do I decide between a 2-pack versus a single assembly?
A two-pack is often more economical and ensures both sides are ready for replacement, which is convenient for dual-axle trailers or when upgrading an old set. A complete assembly is handy for a quick swap when replacing a single damaged tire and rim.
What maintenance should I perform?
Regularly inspect for cracks, punctures, or uneven wear. Check tire pressure before trips and after long storage periods. Keep rims clean and inspect for corrosion, especially in salty environments around coastal boating.
FAQ
- Q: Are these tires compatible with my dual-axle trailer? A: Most 13×4.5″ 5-lug wheels will fit standard dual-axle trailer hubs; confirm your hub bore and lug pattern first.
- Q: Do these tires come with valve stems installed? A: DOT-approved assemblies generally include valve stems as part of the package.
- Q: Can I mix bias ply and radial tires on the same trailer? A: Mixing different tire types is not recommended due to uneven handling and wear patterns.
- Q: How long can I store new tires before use? A: Store in a cool, dry place away from direct sunlight; use within a reasonable period to prevent aging.
- Q: Should I replace both tires on one axle at the same time? A: Replacing both tires on an axle is recommended to maintain balanced handling and even wear.