We researched and compared the top kingpin adapters for gooseneck trailers, evaluating manufacturer specifications, industry safety standards, and aggregated owner feedback to help you choose the right adapter for your towing setup. Our evaluation focuses on build quality, ease of installation, and real-world performance.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Curt 16100 Kingpin Adapter Top Pick Fits 2-inch gooseneck ball; rated for 30,000 lbs GTW |
8.8 | 🛒 Check Price |
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B&W Trailer Hitchens Companion RVK3270 Best Build Quality Fits 2-5/16-inch gooseneck ball; rated for 30,000 lbs GTW |
9.2 | 🛒 Check Price |
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Reese Towpower 7093300 Kingpin Adapter Budget Friendly Fits 2-inch gooseneck ball; rated for 20,000 lbs GTW |
7.8 | 🛒 Check Price |
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Lippert Components 161000 Kingpin Adapter Solid Value Fits 2-inch gooseneck ball; rated for 30,000 lbs GTW |
8.4 | 🛒 Check Price |
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Demco 8550004 Kingpin Adapter Easy Setup Fits 2-inch gooseneck ball; rated for 24,000 lbs GTW |
8.1 | 🛒 Check Price |
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Buyers Products BA210 Kingpin Adapter Heavy Duty Fits 2-inch gooseneck ball; rated for 25,000 lbs GTW |
7.3 | 🛒 Check Price |
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Horizon Global 7030001 Kingpin Adapter Compact Design Fits 2-inch gooseneck ball; rated for 20,000 lbs GTW |
7.6 | 🛒 Check Price |
1. Curt 16100 Kingpin Adapter: Top Pick
The Curt 16100 is a straightforward kingpin adapter that converts a fifth-wheel trailer to gooseneck towing. In our evaluation of manufacturer specs and owner feedback, it offers a solid steel build with a powder coat finish that resists rust. The flip-up handle allows for easy coupler release, and the included safety pin adds security. Most owners report hassle-free installation and reliable towing up to 30,000 lbs gross trailer weight.
However, a few owners noted that after extended use, the coupler developed slight lateral play, which may cause minor wobble at highway speeds. This adapter is best for those who want a simple, durable solution without extra features. If you need a locking mechanism or prefer a brand with a longer warranty, consider other options. Skip it if you require a high-precision fit for heavy or frequent towing.
- Solid steel construction with corrosion-resistant powder coat finish
- Flip-up handle for quick coupler release without tools
- Includes safety pin and retainer clip for secure attachment
Pros: Simple, reliable design with no moving parts; Broad compatibility with most gooseneck hitches
Cons: Some owners report minor play in the coupler over time
2. B&W Trailer Hitchens Companion RVK3270: Best Build Quality
The B&W Companion RVK3270 is a premium kingpin adapter known for its precision machining and durable build. Our research, based on owner feedback and spec sheets, shows it consistently delivers a tight, wobble-free connection. The spring-loaded locking mechanism includes a visual indicator, so you can confirm proper engagement at a glance. It also features integrated safety chain hooks, a thoughtful safety addition.
That said, the adapter is heavier than many alternatives, which could be a consideration if you frequently remove it. A few owners reported that the locking handle can be stiff initially. This adapter is ideal for those who prioritize a solid, rattle-free towing experience and don’t mind the extra weight. Skip it if you need a lightweight adapter for occasional use or have budget constraints.
- Machined steel coupler with precision tolerances for minimal play
- Spring-loaded locking mechanism with visual lock indicator
- Integrated safety chain attachment points
Pros: Extremely tight fit with no wobble reported; High-quality machining and finish
Cons: Higher weight compared to some competitors
3. Reese Towpower 7093300 Kingpin Adapter: Budget Friendly
The Reese Towpower 7093300 is a budget-friendly kingpin adapter that gets the job done for lighter trailers. In our evaluation, it features a simple pin-and-clip coupler design that is easy to use. The all-steel construction is light, making it convenient for occasional towing. Owner feedback indicates it works well for trailers under 20,000 lbs.
However, the lower weight capacity limits its use with heavy fifth-wheels. Additionally, some owners noted that the powder coat finish can chip and rust over time, especially in wet climates. This adapter is best for light-duty or occasional towing where cost is a primary concern. Skip it if you tow heavy loads frequently or need a corrosion-resistant finish.
- All-steel construction with black powder coat finish
- Simple pin-and-clip coupler design
- Lightweight at under 10 lbs
Pros: Affordable price point; Easy to handle and install
Cons: Lower weight capacity than competitors; Some owners report rust after a season
4. Lippert Components 161000 Kingpin Adapter: Solid Value
The Lippert 161000 is a well-priced kingpin adapter that offers a strong drop-forged steel coupler. Based on owner feedback and specs, it provides reliable towing up to 30,000 lbs. The easy-grip handle makes coupler release simple, and the included lock pin secures the connection. Many owners appreciate the balance of cost and capability.
However, unlike some competitors, it lacks integrated safety chain attachment points, requiring separate chain hooks. This may be a minor inconvenience for some users. A few owners also mentioned that the paint finish is prone to scratching. This adapter is ideal for budget-conscious buyers who need a high capacity and don’t mind adding their own safety chain hardware. Skip it if you prefer an all-in-one design with built-in chain loops.
- Drop-forged steel coupler for added strength
- Easy-grip handle for coupler release
- Includes lock pin and retainer
Pros: Excellent value for the capacity; Drop-forged construction is durable
Cons: No safety chain hooks integrated
5. Demco 8550004 Kingpin Adapter: Easy Setup
The Demco 8550004 is designed for ease of use, featuring a spring-loaded locking mechanism that simplifies coupling. Our research shows it has a zinc-plated finish that resists corrosion better than painted adapters. Owner feedback highlights its quick attachment and compact size, making it convenient for those who frequently connect and disconnect.
However, its 24,000 lb capacity is lower than some full-size fifth-wheel adapters, limiting its use with very heavy trailers. A few owners also reported that the locking mechanism can be finicky in cold weather. This adapter is best for medium-duty towing where ease of use is a priority. Skip it if you need to tow a heavy fifth-wheel or prefer a higher capacity.
- Quick-attach coupler with spring-loaded locking mechanism
- Corrosion-resistant zinc plating
- Compact design for tight storage
Pros: Very easy to attach and detach; Lightweight and compact
Cons: Not rated for the heaviest trailers
6. Buyers Products BA210 Kingpin Adapter: Heavy Duty
The Buyers Products BA210 is a heavy-duty kingpin adapter built for demanding towing. In our evaluation, the cast steel with welded reinforcement offers strong strength. Owner feedback indicates it handles up to 25,000 lbs reliably when properly installed. The included lock pin and clip provide basic security.
However, its bulk and weight make it less convenient for frequent removal. Additionally, a few owners reported that the coupler did not fit snugly on some gooseneck balls, causing minor play. This adapter is best for those who need a rugged, no-frills solution for heavy towing and don’t mind the extra heft. Skip it if you value a precise fit or need a lighter adapter for regular removal.
- Cast steel construction with welded reinforcement
- Includes lock pin and retainer clip
- Black powder coat finish
Pros: Sturdy build for heavy loads; Reinforced design
Cons: Heavier and bulkier than many alternatives; Some owners report fitment issues with certain hitches
7. Horizon Global 7030001 Kingpin Adapter: Compact Design
The Horizon Global 7030001 is a compact kingpin adapter that prioritizes portability. Our research indicates it weighs significantly less than many competitors, making it easy to store in a truck bed. The quick-release pin coupler allows for fast attachment and detachment. Owner feedback is generally positive for light to medium trailers.
However, its 20,000 lb capacity is on the lower end, and some owners noted that the powder coat finish can wear off over time, leading to surface rust. This adapter is best for those who tow smaller fifth-wheels or utility trailers and want a lightweight, easy-to-use option. Skip it if you need to tow heavy loads or require a more durable finish.
- Compact and lightweight design
- Quick-release pin coupler
- Black powder coat finish
Pros: Very easy to store and handle; Good for light-duty use
Cons: Lower weight capacity; Less durable finish may chip
Frequently Asked Questions
What is a kingpin adapter for a gooseneck trailer?
A kingpin adapter is a device that allows a fifth-wheel trailer (which typically connects to a hitch in the truck bed) to be towed using a gooseneck ball hitch. It attaches to the trailer’s kingpin and provides a coupler that fits over a gooseneck ball in the truck bed.
How do I choose the right kingpin adapter?
Consider the weight rating of your trailer and your truck’s towing capacity. Ensure the adapter’s gross trailer weight (GTW) rating exceeds your trailer’s weight. Also check the gooseneck ball size (usually 2 or 2-5/16 inches) and compatibility with your hitch. Look for durable construction and safety features like locking mechanisms.
Can I use a kingpin adapter with any gooseneck hitch?
Most kingpin adapters are designed to fit standard 2-inch or 2-5/16-inch gooseneck balls. However, some hitches may have unique ball sizes or offset positions. Always check the adapter’s specifications and your hitch’s ball size and clearance before purchasing.
Do I need to modify my fifth-wheel trailer to use a kingpin adapter?
No, the adapter attaches directly to the existing kingpin on your fifth-wheel trailer. No permanent modifications are required. However, you may need to ensure the adapter’s coupler height aligns with your gooseneck ball when the trailer is level.
Are kingpin adapters safe?
Yes, when properly installed and rated for your trailer’s weight, kingpin adapters are safe. Look for adapters that meet SAE J684 or other industry standards. Always use safety chains and ensure the locking mechanism is fully engaged. Regularly inspect the adapter for wear or damage.
Our Verdict
After researching and comparing the top kingpin adapters, our top pick is the B&W Trailer Hitchens Companion RVK3270 for its exceptional build quality, tight fit, and safety features. For a more budget-friendly option that still offers solid performance, the Curt 16100 is an excellent runner-up with reliable construction and ease of use.
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