When choosing the right B78-13 boat trailer tires, the focus is on load capacity, durability, and ease of installation. This guide spotlights five well-matched tire-and-wheel assemblies designed for boat trailers, utility trailers, and campers. Each option targets different user needs—from quick replacement sets to heavy-duty, ready-to-mount kits. The buyer profiles include frequent travelers needing dependable towing, weekend boaters seeking simple swaps, and those upgrading from worn tires to longer-lasting builds. Below is a concise product table to help you compare at a glance.
| Product | Best For | Why It Stands Out |
|---|---|---|
| eCustomrim 2-Pack Trailer Tire Rim Assembly | Roadside-ready sets; frequent travelers | DOT-approved assembly with roadside assistance and 13×4.5″ rim, 5-lug pattern |
| GarveeTech ST175/80D13 Set | Heavy-duty trailers; long trips | 6PR construction, durable nylon cords, ready-to-install wheel assemblies |
| MERXENG Trailer Tires Rims | Budget-friendly replacements; standard setups | 6-ply, 5-lug, solid load specs, simple 2-pack option |
| Sunvasagoo 5-Lug White Spoke Set | Light to medium loads; easy fit | 6-ply design, white spoke wheels, widely compatible bolt pattern |
| KORVYAL ST175/80D13 Wheel Assemblies | Ready-to-mount upgrades; quick swaps | Includes complete wheel assemblies with 6-ply tires and 5-lug on 4.5″ PCD |
eCustomrim 2-Pack Trailer Tire Rim Assembly
Product overview: This set includes bias ply ST175/80D13 tires mounted on a 13X4.5″ white spoke rim with a 5-lug pattern. The tires are rated for 1360 lbs per tire at 50 PSI, with a 24.4″ overall diameter. The assembly is DOT-approved for safety and compatibility with various trailer applications. Best for buyers who want a ready-to-go, road-ready package with included roadside support and a two-year warranty.
Who it’s best for: Frequent travelers and boat trailer owners who prefer a complete, certified assembly that can be mounted quickly without separate tire-rim matching. It’s a solid choice for maintaining towing stability on long trips.
Why selected: Combines DOT-approved components, standard 5-lug mount, and a separate warranty/roadside plan that helps reduce downtime after tire changes. The 24.4″ diameter aligns well with common 13″ trailer configurations.
Caution: Verify bolt pattern compatibility with your existing hub; incorrect lug spacing can require adapters or a different wheel size.
FREE COUNTRY 2 Trailer Tires ST175/80D13
Product overview: This set includes two new bias-ply ST175/80D13 tires with load range C and 6-ply construction, rated for 1,360 lbs at 50 psi. The set is designed to be paired with a 5″ rim, making it a straightforward replacement option for many trailer configurations.
Who it’s best for: Boat and utility trailer owners seeking a budget-friendly, dependable two-tire replacement option that maintains standard hitch-to-tire compatibility.
Why selected: The 6-ply design improves puncture resistance for everyday towing and rougher roads. It offers straightforward swap-in compatibility with common 13″ trailer wheels.
Caution: The included rim size is stated as 5″ nominal; confirm your hub bore and bolt pattern to avoid fit issues with your current setup.
GarveeTech ST175/80D13 Wheel Assembly
Product overview: A two-pack set featuring ST175/80D13 bias ply tires on 13″ white spoke wheels with a 5-lug 4.5″ bolt pattern and Load Range C 6PR, capable of up to 1360 lbs per tire at 50 psi. Ready to install, this assembly is designed for utility, boat, and camper trailers.
Who it’s best for: Trailer owners who want a rugged, pre-mounted wheel-tire combination that reduces install time and ensures balanced performance on travel routes.
Why selected: The combination of strong 6PR tires and a robust white spoke wheel provides both durability and a clean aesthetic for trailer upgrades or replacements.
Caution: Ensure your axle and hub match the 5-lug 4.5″ bolt pattern; misalignment can require hub adapters or new rims.
ST175/80D13 Wheel Assemblies By KORVYAL
Product overview: This 2-pack includes complete wheel assemblies with ST175/80D13 tires mounted on white spoke rims. The tires are 6-ply with a 5-lug, 4.5″ PCD, supporting up to 1360 lbs per tire. The package is designed for immediate replacement on boat, utility, or camper trailers.
Who it’s best for: Buyers seeking a ready-to-mount upgrade that minimizes downtime and provides reliable towing performance across various trailer applications.
Why selected: The ready-to-mount format helps users swap to a balanced, pre-mounted setup, ensuring speed and consistency when replacing worn tires.
Caution: Verify the center bore size and bolt pattern of your hub to ensure a precise fit without spacers or adapters.
Buying Guide
Key considerations for selecting B78-13 trailer tires include load capacity, ply rating, wheel compatibility, and installation convenience. Use these questions to compare options:
- What load capacity do I need for my trailer weight and cargo? Most options here are 1360 lbs per tire at 50 psi, which suits standard utility, boat, and camper trailers.
- Should I choose bias ply or radial tires? For trailer use, bias ply tires balance cost and durability; radial tires may offer longer life but vary by model.
- Is the wheel bolt pattern compatible with my hub? Most selections use 5-lug on 4.5″ centers; confirm the bore size and hole pattern before purchase.
- Do I want a ready-to-mount assembly? Sets that include tires on wheels save installation time and reduce mounting effort on-site.
- What is the overall diameter and tread depth? The ST175/80D13 size yields around 24″ overall diameter, with deeper treads offering longer life on rough roads.
- Are there warranty or roadside support options? Some assemblies come with a warranty and roadside assistance, which helps if a tire needs service away from home.
FAQ
- What does B78-13 indicate? It is a tire size designation (tire width and aspect ratio) commonly used for 13-inch trailer tires.]
- Can I mix different brands on my trailer? Mixing is generally not recommended; aim for matching sizes, ply ratings, and load ranges for even wear.
- Do I need to replace tires in pairs? It’s best practice to replace tires in pairs on the same axle to maintain consistent handling and load sharing.
- How do I check tire pressure for these tires? Inflate to the vehicle’s recommended cold pressure, typically around 50 psi for these tires, then recheck when hot to avoid overinflation.
- What maintenance helps extend tire life? Regular inspection for cracks, cuts, or bulges; check lug nuts for proper torque; and maintain correct load ratings.
- Are these assemblies compatible with all 13-inch trailer rims? They are designed for standard 13-inch rims with a 5-lug, 4.5″ bolt pattern, but always verify bore size and hub compatibility.