Answering the right buyer’s question is the goal here: these are the best spare tire holder options for trailers, designed to fit common lug patterns (4, 5, and 6 lugs) and hold up to 150–180 pounds. They suit boat trailers, utility trailers, campers, and RVs. Each pick targets different needs—installation style, bolt pattern compatibility, and durability. Below are five top choices with clear benefits, best-use cases, and practical cautions to help you decide quickly.
Summary of selected products
| Product | Best For | Key Benefit | Limitations |
|---|---|---|---|
| GADFISH Spare Tire Carrier | Broad bolt patterns | Sturdy heavy-duty mount for 4–5–6 lug wheels | Weight capacity up to 150 lbs may require reinforced mounting on lighter frames |
| Trailer Spare Tire Mount (toolhoper Store) | Rough road and long trips | Upgraded 3 Nut design to reduce loosening | Includes steel construction; ensure compatibility with your trailer’s hole pattern |
| Spare Tire Mount (PAULINN) | Boat and RV trailers | Versatile 4/5/6 lug compatibility; robust iron with rust resistance | Heavier unit; needs solid mounting surface |
| VIAGL U-Bolt Spare Tire Bracket | Side-mount installations | Galvanized, corrosion-resistant; easy to install | Limited to 4 or 5 lug configurations; may require extra hardware for non-standard frames |
| Spare Tire Mount (Joroamp) | Wider 4–6 lug compatibility | Three-nut design to lock tire securely; heavy-duty welded construction | Moderate weight; verify exact bolt pattern fit for your wheel |
GADFISH Spare Tire Carrier

The GADFISH Spare Tire Carrier supports 4, 5, and 6 lug trailer wheels with bolt patterns from 4″ to 5.5″. It is designed for heavy-duty use, holding up to 150 pounds. This makes it suitable for larger boat trailers and utility trailers that require a robust mount. Best for users who need a durable, high-capacity spare tire solution on standard trailer frames. A notable limitation is the potential need for reinforcing the mounting area on lighter frames to avoid flexing under load.
Trailer Spare Tire Mount — toolhoper Store

This unit emphasizes an upgraded 3 Nut design to lock the tire more securely, reducing vibration and noise while driving. It is built from high-quality precision steel with a powder-coated finish for rust and corrosion resistance. It supports up to 150 pounds and targets trailers such as utility boats and campers. Best for travelers who drive over rough terrain or long distances where nut loosening could be an issue. A potential limitation is the need to confirm bolt pattern compatibility with your specific trailer wheel.
Spare Tire Mount — PAULINN

The PAULINN Spare Tire Carrier is designed for versatility, accommodating 4, 5, and 6 lug wheels with multiple bolt patterns (4″, 4.5″, 4.75″, 5″, 5.5″). It uses industrial-grade solid iron with a sandblasted finish, offering strong rust and corrosion resistance. Best for boat trailers, campers, and RVs needing a long-lasting mount. The main caveat is its heavier construction, which may require a sturdier mounting surface and compatible frame spacing.
VIAGL U-Bolt Trailer Spare Tire Bracket

The VIAGL U-Bolt Spare Tire Bracket is a galvanized side-mount option for 4 or 5 lug wheels, suitable for fishing, ski, or sailboat trailers. It features an 8.8-grade thick steel frame and corrosion-resistant coating, with straightforward installation by threading bolts into the trailer’s throat. Best for side-mount setups that need durable, weather-resistant hardware. A limitation is that it may not fit all non-standard frame widths without extra adapters or hardware.
Spare Tire Mount — Joroamp Store

The Joroamp Spare Tire Mount uses a three-nut design to better lock the tire, reduce vibration, and prevent loosening. It supports 4–6 lug wheels with multiple bolt patterns (4″, 4.25″, 4.5″, 4.75″, 5.0″, 5.32″, 5.5″), and has a welded zinc-plated steel construction for durability. Best for users who prioritize a secure, vibration-resistant mount on boats or utility trailers. A caution: verify the exact bolt pattern fit for your wheels to ensure compatibility.
Buying Guide
Key considerations help you choose the right spare tire holder for your trailer:
- Bolt pattern compatibility: Ensure the mount supports 4, 5, or 6 lug wheels and matches your wheel diameter and hole spacing.
- Weight capacity: Pick a unit rated above your spare tire weight and account for trailer load conditions.
- Mount style: Side-mount, rear-mount, or top-ming mounting affects accessibility and space on your trailer. Choose based on cargo layout and frame design.
- Material and finish: Galvanized or powder-coated steel offers rust resistance in marine or outdoor environments.
- Installation complexity: Some designs use a simple bolt-through approach, others require welding or reinforced frames. Assess your repair and modification comfort level.
- Durability in conditions: If you travel on rough terrain or saltwater environments, prioritize corrosion resistance and reinforced construction.
Practical comparison tips
- For maximum stability on boat trailers: prioritize 150–180 lb capacity with a welded, reinforced frame and rust-resistant coating.
- If you want easy installation: choose a U-bolt or three-nut design that threads onto existing trailer hardware.
- If space is tight: prefer side-mount brackets that minimize protrusion while providing reliable access to the spare.
FAQ
- Can these mounts fit any trailer frame? Most are designed for common widths and bolt patterns, but always verify your frame width and hole spacing.
- What is the typical weight you should lift? Spare tires commonly weigh 30–50 pounds, but larger tires can exceed 100 pounds; ensure your chosen mount exceeds the tire weight plus dynamic loads.
- Are these mounts corrosion resistant? Many options use galvanized steel or powder-coated finishes for outdoor use, including marine environments.
- Do I need professional installation? Simple bolt-on mounts often require basic tools; welded or reinforced mounts may need professional installation or frame modification.
- Can I mount a spare tire on the back of a trailer? Yes, side-mount and rear-mount designs are available, but verify clearance with taillights and frame geometry.
- What wheel sizes do these covers support? They commonly support up to 15″ tires with multiple lug patterns; confirm your tire size before purchase.