Answering buyers who need reliable ST175/80D13 tire and wheel assemblies for boat trailers: these sets are designed for easy replacement, stable towing, and compatibility with standard 5-lug, 4.5″ bolt patterns. The top picks here cover bias-ply and radial options, white and black wheels, and built-in roadside assistance where offered. Best for do-it-yourself trailer owners, weekend boaters, and small utility trailers needing quick, DOT-approved assemblies.
| Product | Size/Pattern | Best For | Notes |
|---|---|---|---|
| eCustomrim 2-Pack Trailer Tire Rim Assembly ST175/80D13 Black Wheel | 13″ x 4.5″; 5 Lug on 4.5″ | Budget buyers seeking a complete DOT-approved set | Includes roadside assistance |
| eCustomrim 2-Pack Trailer Tire Rim Assembly ST175/80D13 White Wheel | 13″ x 4.5″; 5 Lug on 4.5″ | White wheel aesthetic; easy DIY swap | DOT-approved; roadside assistance |
| GarveeTech ST175/80D13 Trailer Tire And Wheel Assembly | 13″ white spoke wheel; 5 Lug | Heavy-duty 6PR option for stability | Pre-mounted for fast replacement |
| eCustomrim ST175/80D13 B78-13 Black Wheel | 13″ x 4.5″; 5 Lug | Compact, reliable bias ply option | Roadside assistance included |
| eCustomrim 2-Pack Trailer Tires ST175/80D13 With Deep Tread | 24.4″ overall diameter; 50 PSI | Maximized tread depth for longevity | 2-year warranty with roadside |
| MERXENG Trailer Tires Rims ST175/80D13 | 13″ wheel; 5 Lug on 4.5″ | Economical set with standard specs | Set of 2 |
eCustomrim 2-Pack ST175/80D13 Black Wheel Assembly

Best for budget-minded buyers who want a complete DOT-approved tire and wheel assembly. Supports stable towing with bias ply tires rated for up to 1360 lbs at 50 PSI. 13×4.5″ rim with 5 lug on 4.5″ bolt pattern ensures straightforward compatibility with common trailer setups. Includes a 2-year warranty and roadside assistance.
Who it’s best for: casual boat trailers and small utility trailers needing a ready-to-install set without extra components. Caution: bias ply designs may have different rolling characteristics than radial tires in certain long-distance applications.
eCustomrim ST175/80D13 White Wheel Assembly

Best for trailers where a white wheel finish matches the vehicle’s look or branding. Pre-mounted bias ply tire and wheel on a 13″ white spoke wheel, 5 lug on 4.5″ pattern, DOT-approved with 2-year warranty and roadside assistance. Designed for stable towing and predictable wear.
Who it’s best for: owners prioritizing a clean, light-colored wheel aesthetic and easy installation. Caution: availability of white wheels can vary by season; check stock before purchase.
GarveeTech ST175/80D13 Trailer Tire And Wheel Assembly

Better for heavy-use utility and boat trailers requiring extra durability. This 2-pack uses Load Range C 6PR tires mounted on a white spoke wheel with 5 lug 4.5″ PCD, designed for strong towing stability. Ready to install and includes pre-mounted tires and rims for fast replacement.
Who it’s best for: trailers that demand a tougher tire construction for frequent trips or rough lots. Caution: heavier construction may impact overall weight if you’re balancing weight limits on small trailers.
eCustomrim 2-Pack ST175/80D13 Deep Tread

Best for longer trips and increased tread longevity. These bias ply tires deliver a deep tread design for durability and reliable traction. Includes a 2-year warranty with roadside assistance, and a 13×4.5″ wheel with 5 lug 4.5″ bolt pattern. DOT-approved assembly ensures safe operation.
Who it’s best for: travelers needing extended tread life and steady performance on varied road conditions. Caution: bias ply tires may heat differently than radial tires during high-speed highway use.
MERXENG ST175/80D13 Tire And Wheel Set

Best for economical, standard-spec trailer tire and wheel assemblies. The set features a 5-lug, 4.5″ bolt pattern with a 24″ overall diameter and 1360 lbs max load. It’s a practical choice for budget-conscious buyers needing a straightforward replacement. Includes two tires and rims that meet common trailer requirements.
Who it’s best for: cost-focused buyers seeking reliable, no-frills tires and rims for utility or boat trailers. Caution: check exact wheel finish and compatibility with your trailer fender clearance before purchasing.
Buying Guide: How to Choose the Right ST175/80D13 Tire and Wheel Set
- Size and bolt pattern: Confirm the wheel is 13 inches and uses a 5 lug on 4.5″ bolt pattern. This ensures compatibility with most boat and utility trailers.
- Tire type: Choose bias ply for simple service and cost, or radial for longer wear and smoother highway performance. Radial tires typically handle higher speeds with better heat dissipation.
- Load rating and PSI: ST175/80D13 tires in Load Range C often handle up to 1360 lbs at 50 PSI. Verify your trailer’s axle and tongue weight limits before selecting tires.
- Wheel finish: Black steel versus white spokes or painted finishes affect aesthetics and potential corrosion resistance. Ensure finish matches your trailer’s look and fender clearance.
- Warranty and roadside assistance: A 2-year or longer warranty with roadside helps reduce maintenance headaches on trips. DOT-approved assemblies ensure safety standards are met.
- Pre-mounted versus separate components: Pre-mounted tire and wheel assemblies save time and reduce installation errors. If you’re replacing both tire and wheel, a complete assembly is often the easiest route.
- Durability versus value: Higher PR (pounds per square inch) and thicker sidewalls increase durability but may add weight. Balance daily use with travel needs and load demands.
Frequently Asked Questions
- What does ST175/80D13 mean?
ST stands for Special Trailer; 175/80 indicates the tire width and aspect ratio; D denotes bias ply or radial construction; 13 is the wheel diameter in inches.
- Are these assemblies DOT-approved?
Yes, the listed products describe DOT-approved tire, wheel, and valve stems as assemblies, offering a ready-to-use option.
- Is bias ply or radial better for boat trailers?
Radial tires generally offer longer wear and better highway performance; bias ply can be sufficient for shorter trips and lighter loads.
- Do these sets come with installation hardware?
Most sets include the tire, wheel, and valve stem; some sets mention roadside assistance and warranty but verify included hardware with the seller.
- Can I mix tires from different brands on a trailer?
For safety and handling, it’s best to use matched tires and wheels on a single axle, ideally from the same product line.