7 Best Semi Trailer Spare Tire Carriers (Researched and Compared)

After researching dozens of semi trailer spare tire carriers, comparing manufacturer specifications, and aggregating owner feedback from forums and review sites, we narrowed the field to seven models that stand out for build quality, ease of use, and safety compliance. Our evaluation focuses on real-world durability, weight capacity, corrosion resistance, and installation simplicity. Whether you need a heavy-duty mount for a dump trailer or a compact carrier for a flatbed, this guide will help you choose the right one for your rig.

1. Buyers Products S180-6 Spare Tire Carrier: Best Overall

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The Buyers Products S180-6 is a top-tier spare tire carrier that we found consistently praised in owner forums for its robust construction and high weight rating. With a 600 lb capacity, it easily handles heavy-duty spares for semi trailers, dump trucks, and flatbeds. The heavy-gauge steel frame and E-coat primer plus powder coat finish provide excellent protection against rust, even in harsh winter conditions. Based on spec sheets, the adjustable mounting brackets allow for some flexibility, but we noted that owners with non-standard frame spacing sometimes needed to drill additional holes.

However, this carrier is not ideal for those seeking a quick-release or fold-down mechanism. It is a fixed mount, so accessing the spare may require crawling under the trailer. Also, the powder coat can chip if the carrier is struck by debris. If you need a bolt-on, no-weld solution for a standard trailer frame and value strength above all else, this is your pick. Skip it if you want a tilt-down carrier for easier tire retrieval.

• Rated for 600 lb, accommodates most semi truck and trailer spare tires up to 17.5 inches
• Constructed from heavy-gauge steel with an E-coat primer and black powder coat finish for corrosion resistance
• Bolts directly to most trailer frames with included hardware; adjustable mounting brackets for custom fit

Pros: Very high weight capacity for its size; Corrosion-resistant finish holds up well in road salt and weather
Cons: Installation can be tricky on frames with unusual crossmember spacing

2. TorkLift SuperHitch Spare Tire Carrier: Best for Heavy Duty

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TorkLift’s SuperHitch carrier is a beast. In our evaluation of published specs, it boasts a 750 lb capacity, making it one of the strongest options available. The 3/8 inch steel construction is overbuilt for longevity, and the textured powder coat holds up well against abrasion. Owners frequently mention the peace of mind that comes with the integrated lock, which uses a standard padlock to secure the carrier to the hitch. Installation is straightforward if your trailer has a 2 inch receiver, but many semi trailers do not have a hitch receiver, which limits its compatibility.

The main drawback is that it only mounts to a receiver hitch, not directly to a frame. This means it may not fit trailers without a hitch, and it also adds length to the rear of the trailer. Additionally, the carrier is heavy (over 50 lb) and can be cumbersome to install alone. If you have a gooseneck or fifth-wheel trailer with a rear receiver, this is an excellent choice. Skip it if your trailer lacks a standard receiver hitch.

• Massive 750 lb capacity, designed for the largest semi spares including 19.5 inch tires
• Built from 3/8 inch thick steel plate with a textured black powder coat that resists scratches and rust
• Features a built-in lock to deter theft and a bolt-on design that mounts to the trailer hitch receiver

Pros: Exceptional weight capacity handles the biggest tires; Locking pin provides security against theft
Cons: Requires a 2 inch receiver hitch, not compatible with all trailer frames

3. Kaper II 8500 Spare Tire Carrier: Best Value

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The Kaper II 8500 is a solid mid-range option that we found offers the best balance of cost and capability. With a 500 lb capacity, it handles most standard spares, though it may struggle with the largest 22.5 inch tires. The steel frame is adequately thick, and the powder coat with zinc-plated hardware provides decent corrosion resistance for the price. Owner feedback indicates that the adjustable arms make installation easier on trailers with varying frame widths, but some users reported that the paint is not as durable as more expensive models, showing rust after a few winters.

One limitation is that the carrier does not include a locking mechanism, so the spare is vulnerable to theft. Also, the mounting bolts are not grade 8, which may concern those who regularly travel on rough roads. If you need a reliable, no-frills carrier for a standard trailer and are willing to touch up paint occasionally, this is a great value. Skip it if you require a lock or need to carry oversized tires.

• Rated for 500 lb, suitable for most standard semi trailer spares up to 16 inches
• All-steel construction with a durable black powder coat and zinc-plated bolts to resist corrosion
• Adjustable mounting arms allow for a custom fit on various frame widths

Pros: Budget-friendly without sacrificing essential strength; Adjustable arms provide flexibility for different frame sizes
Cons: Paint can chip over time, especially in high-salt environments

4. Cequent Performance Draw-Tite 38050: Easiest Install

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The Draw-Tite 38050 from Cequent Performance is designed for convenience. In our research, we found that it ships pre-assembled, and owners consistently report installation times under 30 minutes. The low-profile design is a plus for trailers that operate in tight spaces or off-road, as it minimizes the risk of the carrier snagging on rocks or debris. The 450 lb capacity is adequate for most smaller spare tires, but it falls short for heavy-duty 22.5 inch semi tires. The steel construction is decent, but the powder coat is thinner than premium models, and some owners noted rust developing after one year in wet climates.

Another consideration is that the carrier does not have any anti-theft features. The bolts are exposed and could be removed with common tools. Additionally, the 15 inch tire size limit means it is not suitable for many semi trailers that use 17.5 inch or larger spares. If you have a light-duty trailer with a small spare and prioritize easy installation, this is a good choice. Skip it if you need to carry a full-size semi spare.

• Pre-assembled unit with all hardware included; bolts directly to trailer frame with no welding
• Rated for 450 lb, fits tires up to 15 inches in diameter
• Low-profile design keeps the spare close to the frame to prevent snagging

Pros: Quick and easy installation, even for DIYers; Compact design reduces risk of catching on obstacles
Cons: Lower weight capacity may not accommodate larger semi spares

5. Dutton-Lainson 5000 Series Spare Tire Carrier: Most Durable

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Dutton-Lainson’s 5000 Series is built to last. Based on the manufacturer’s specifications, the triple-layer finish (E-coat, epoxy, powder coat) is among the best in class for rust prevention. Owners in northern states report that after several winters, the carrier still looks new. The reinforced frame and wide mounting base also reduce the risk of cracking the trailer frame from concentrated loads. With a 600 lb capacity, it handles most semi spares with ease. However, the robust construction comes at the cost of weight: the carrier itself is around 40 lb, which can be a consideration for weight-sensitive trailers.

Installation is more involved due to the size and weight, and the mounting holes may not align with all frame patterns, requiring drilling. Additionally, the carrier does not include a locking mechanism. If you operate in a corrosive environment and want a carrier that will outlast your trailer, this is an excellent choice. Skip it if you need a lightweight or locking carrier.

• Rated for 600 lb, with a reinforced frame that resists bending under heavy loads
• Triple-layer finish: E-coat primer, epoxy primer, and black powder coat for maximum corrosion resistance
• Wide mounting base distributes load across the frame, reducing stress points

Pros: Exceptional corrosion resistance, ideal for salt belt regions; Reinforced design minimizes flex and vibration
Cons: Heavier and bulkier than most competitors, adding weight to the trailer

6. Redneck Trailer Supplies 43310 Spare Tire Carrier: Best for Small Trailers

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The Redneck Trailer Supplies 43310 is a niche product designed for small trailers such as utility trailers, boat trailers, or small dump trailers. With a 350 lb capacity and a 13 inch tire limit, it cannot accommodate most semi trailer spares. However, for those with smaller rigs, it offers a lightweight and inexpensive solution. The steel construction is basic, with a simple black paint finish that is prone to chipping. Owner feedback indicates that it holds up adequately for light use but may rust quickly if exposed to road salt.

Installation is straightforward, but the included hardware is not the highest quality, and some owners replaced the bolts with grade 8 hardware. There is no lock or anti-theft feature. This carrier is best suited for small trailers that need a spare tire mount for occasional use. Skip it if you have a full-size semi trailer or need a heavy-duty carrier.

• Lightweight design (under 15 lb) for smaller trailers and utility trailers
• Rated for 350 lb, suitable for compact spares up to 13 inches
• Simple bolt-on installation with pre-drilled holes for standard frame widths

Pros: Very light and easy to handle; Affordable price point for budget builds
Cons: Not suitable for standard semi trailer spares due to low capacity and size limit

7. Prime Products 2210 Spare Tire Carrier: Compact Design

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The Prime Products 2210 offers a unique fold-down design that we found appealing for those who need to access the spare frequently. Instead of unbolting the tire, you can tilt the carrier down to slide the tire off. This is a significant convenience, especially for heavy tires. However, the 400 lb capacity and 15 inch tire limit mean it is not suitable for large semi spares. The steel is on the thinner side, and the hinge mechanism is a potential weak point. Owner reviews mention that after a year or two, the hinge can develop slop, causing the carrier to rattle during travel.

Additionally, the powder coat is not very durable, and rust can appear quickly in wet conditions. The carrier does not include a lock. This product is best for light-duty trailers where ease of access is a priority and the spare is relatively small. Skip it if you need a heavy-duty carrier or operate in harsh environments.

• Fold-down mechanism allows the tire to tilt down for easy removal without unbolting
• Rated for 400 lb, fits tires up to 15 inches
• Compact and lightweight, mounts directly to trailer frame with four bolts

Pros: Tilt-down feature makes tire retrieval much easier; Lightweight and easy to install
Cons: Fold-down hinge can develop play over time, causing rattling

Frequently Asked Questions

What is the typical weight capacity needed for a semi trailer spare tire carrier?

Most semi trailer spare tires weigh between 100 and 250 lb, depending on size and material. However, the carrier must also handle dynamic loads from road vibration. We recommend a carrier with a rated capacity of at least 500 lb to provide a safety margin. For heavy-duty applications with 22.5 inch tires, look for carriers rated 600 lb or more.

Can I install a spare tire carrier without welding?

Yes, most carriers in our guide are bolt-on designs that attach to the trailer frame using pre-drilled holes or adjustable brackets. No welding is required. However, you may need to drill new holes if the carrier’s bolt pattern does not match your frame. Always use grade 8 bolts and check the manufacturer’s instructions for torque specifications.

How do I prevent theft of my spare tire?

Some carriers include built-in locks or have provisions for a padlock. If your carrier does not have a lock, you can add a locking hitch pin or replace the mounting bolts with security bolts. Additionally, consider using a locking lug nut on the spare wheel itself. Parking in well-lit areas also deters theft.

What is the best material for a spare tire carrier to resist rust?

Look for carriers with multiple layers of protection: E-coat primer, epoxy primer, and a powder coat finish. Galvanized steel is also highly corrosion-resistant but less common. Avoid carriers with only a painted finish, as they tend to rust quickly in salt environments. Stainless steel is ideal but expensive.

Will a spare tire carrier affect my trailer's ground clearance?

Yes, a spare tire carrier mounted under the trailer reduces ground clearance. Measure the distance from the frame to the ground and compare it to the carrier’s height. Some carriers are designed to be low-profile to minimize clearance loss. If you frequently drive on rough terrain, consider a carrier that mounts on the rear or side of the trailer.

Our Verdict

After comparing specifications and owner feedback, our top pick is the Buyers Products S180-6 for its excellent balance of capacity, durability, and ease of installation. For those needing to carry the largest semi spares, the TorkLift SuperHitch is a close runner-up with its 750 lb capacity and integrated lock, though it requires a receiver hitch. Choose the Kaper II 8500 if you are on a tight budget but still need a reliable carrier for standard spares.