Seeking reliable 13 inch boat trailer tires that combine safety, longevity, and straightforward replacement? This guide highlights five top options that fit common 13×4.5″ trailers with 5-bolt patterns. These selections cater to different needs, from bias-ply to radial tires, with matching rims where noted. The best choice depends on load capacity, whether you favor radial stability or bias-tply simplicity, and your need for road-side support or extended warranties.
Buyer profiles at a glance:
– Best overall value: balanced load rating and warranty for frequent towing.
– Best for rugged rigs: higher load capacity and radial construction.
– Best for a white-spoke look: aesthetic choice with solid performance.
– Best with roadside coverage: longer warranties and included roadside assistance.
– Best for maximize tread life: deep tread design and reinforced durability.
| Product | Type | Load & PSI | Wheel Type | Warranty |
|---|---|---|---|---|
| eCustomrim 2-Pack ST175/80D13 Bias Ply with 4.5″ Black Rim | Bias Ply | 1360 lbs @ 50 PSI | 5 Lug, 13×4.5″ | 2 years |
| Free Country ST175/80R13 8-Ply with Scuff Guard | Radial (Set of 2) | — | — | — |
| eCustomrim 2-Pack Radial ST175/80R13 with 6-Year Warranty | Radial | 1610 lbs @ 65 PSI | 5 Lug, 13×4.5″ | 6 years |
| eCustomrim ST175/80D13 B78-13 White Spoke | Bias Ply | 1360 lbs @ 50 PSI | 5 Lug, 13×4.5″ | 2 years |
| eCustomrim 2-Pack Deep Tread Bias Ply ST175/80D13 | Bias Ply | 1360 lbs @ 50 PSI | 5 Lug, 13×4.5″ | 2 years |
eCustomrim 2-Pack Trailer Tire Rim Assembly ST175/80D13

Best for budget-conscious buyers who want a ready-to-install package. This bias-ply tire is rated for 1360 lbs and 50 PSI, with a 24.4″ overall diameter (Load Range C). The wheel is a 13×4.5″ with a 5-lug pattern, ensuring secure lug alignment on compatible trailers. The assembly includes tire, wheel, and valve stem, and comes with a two-year warranty and roadside assistance. Choose this if you want a complete, DOT-approved setup at a compelling price, suitable for standard utility trailers and light boats. Caution: bias-ply tires generally provide gentler handling characteristics and may wear differently than radials in certain conditions.
Free Country Premium Trailer Tires ST175/80R13 Set 2

Best for durability and side protection. These radial tires feature a full nylon cap ply overlay across the tread area, improving stability and safety. The Scuff Guard ring on the tire wall provides additional rim protection. This set is ideal for frequent towing or rougher road conditions where tread life and sidewall integrity matter most. Better for longer trips and heavier boat launches. Limitation: data does not specify exact load rating per tire in the listing, so verify fit for heavier trailers before purchase.
eCustomrim 2-Pack Radial Trailer Tire Rim with 6-Year Warranty

Best for extended warranty and radial stability. This 16-10 tire combination uses a radial construction rated at 1610 lbs max load and 65 PSI, with a 23.9″ overall diameter. The rim is 13×4.5″ with a 5-lug pattern, ensuring compatibility with standard boat trailer hubs. Choose this if you want a long-term warranty and improved towing stability on longer trips. Caution: ensure your trailer hub can accommodate radial tires and the specified rim size.
eCustomrim ST175/80D13 White Spoke Assembly

Best for a clean white-spoke appearance and standard performance. This bias-ply tire with 24.4″ diameter and Load Range C delivers reliable towing for typical boat setups. The 13×4.5″ white spoke wheel uses a 5-lug pattern for secure mounting. Best for boat trailers where aesthetics matter or where matching existing white rims is desired. Limitation: bias ply may not offer the same high-speed stability as some radial options on long highway drives.
eCustomrim 2 Pack Deep Tread Bias Ply ST175/80D13

Best for longevity with aggressive tread design. This 2-pack bias-ply tire emphasizes deep tread depth to maximize tread life and stability in varied conditions. Coupled with a 13×4.5″ wheel and Load Range C, it provides a balanced option for regular trailers and utility use. Choose this if you prioritize longer wear life over ultra-lightweight performance. Caution: higher tread depth may influence handling feel on small trailers with lighter axle weights.
Buying Guide
- What tire construction should you choose? Radial tires generally offer smoother highway performance and longer wear, while bias-ply tires are often budget-friendly and simple for standard trailer use.
- Load rating and PSI: Ensure the tire’s max load and recommended pressure match your trailer’s gross weight and axle requirements. Do not exceed the hub and brake system design limits.
- Wheel compatibility: Confirm the 13×4.5″ wheel size with a 5-on-4.5″ bolt pattern fits your trailer. Center bore and hub compatibility matter for proper seating.
- Warranty and roadside assistance: Consider longer warranties if you tow frequently or traverse remote areas. Roadside coverage can be a decisive factor for boat owners away from service centers.
- Sidewall protection: Scuff guards and reinforced sidewalls help prevent damage during off-road or loading/unloading tasks.
FAQ
- Q: Are radial trailer tires always better than bias-ply? A: Radial tires typically provide improved stability and wear life, especially on longer highway trips, but bias-ply tires can be sufficient for light-duty, occasional towing.
- Q: What does Load Range C vs D indicate? A: Load Range C supports lighter loads at moderate pressure; Load Range D supports heavier loads with higher pressure. Match to your trailer’s load rating.
- Q: How important is wheel pattern compatibility? A: Very important. A mismatch can prevent proper mounting or cause lug nut loosening. Verify 5-lug on 4.5″ centers for these products.
- Q: Do these sets include valve stems? A: Yes, most listed DOT-approved assemblies include tires, wheels, and valve stems.
- Q: Should I choose a kit with roadside assistance? A: Roadside coverage is beneficial for remote trips or if you lack immediate support, especially for boat trailers away from repair shops.
- Q: What maintenance is needed? A: Regularly check tire pressure, inspect for sidewall damage, and rotate or inspect tires after long trips or heavy use.