7 Best 5th Wheel to Gooseneck Adapters of 2026

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Towing a 5th wheel trailer with a gooseneck hitch can be a game-changer, but finding the right 5th wheel to gooseneck adapter is critical for safety, stability, and ease of use—especially when mismatched heights or inadequate weight ratings lead to dangerous sway or equipment failure. The best 5th wheel to gooseneck adapters solve these issues with high-strength steel construction, ample weight capacity (up to 30,000 lbs), and convenient height adjustability to ensure a level, secure connection. We evaluated each adapter based on verified GTW ratings, material quality, real-world user feedback, and warranty support to identify models that deliver reliable performance and long-term durability. Below are our top picks for the best 5th wheel to gooseneck adapters to match your towing needs.

Top 7 5Th Wheel To Gooseneck Adapters in the Market

Best 5Th Wheel To Gooseneck Adapters Review

Best Lightweight Performance

Misakomo 30,000lbs Kingpin Adapter

Misakomo 30,000lbs Kingpin Adapter
Max Load Capacity
30,000 lbs
Material
Forged steel
Gooseneck Ball Size
2-5/16 inch
Kingpin Size
2 inch
Middle Disc Diameter
8 inch
Latest Price

ADVANTAGES

30,000 lbs capacity
Forged steel construction
8″ stabilizing disc
No welding required

LIMITATIONS

×
No height adjustment
×
Not for swivel kingpins
×
Limited compatibility verification

This no-nonsense powerhouse delivers lightweight durability without sacrificing strength, making it a top pick for haulers who need a reliable, no-frills adapter. Crafted from forged one-piece steel, the Misakomo 2085295 handles up to 30,000 lbs GTW with confidence, thanks to its precision-machined structure that evenly distributes stress and resists cracking under pressure. The 8-inch stabilizing disc significantly reduces wobble during towing, addressing one of the most common pain points with kingpin-to-gooseneck conversions—instability on uneven terrain or at highway speeds.

In real-world use, this adapter shines when paired with standard-height fifth wheels and gooseneck trailers, especially on flatbeds and utility trailers where consistent alignment matters. It installs quickly onto most gooseneck setups without welding, but requires careful attention to your trailer’s kingpin orientation—swivel-style fifth wheels may not lock securely, which can lead to dangerous articulation. While it handles heavy loads well, the lack of height adjustability means it’s best suited for trucks and trailers already aligned within compatible towing geometry.

Compared to pricier models like the GEARBONE B0F98YR5DT, this Misakomo unit trades versatility for raw, cost-effective strength, positioning itself as the go-to for budget-conscious users who don’t need adjustable height. It’s not as feature-rich as cushioned or multi-position adapters, but for straightforward, heavy-load towing where simplicity wins, it outperforms many in its class. If you’re running a semi-tractor or flatbed rig and need a rugged, set-it-and-forget-it solution, this adapter offers unmatched value in a lightweight, high-strength package.

Best for Fixed Height

Fixed 17″ 5th Wheel to Gooseneck Adapter

Fixed 17
Height
17″ fixed
Weight Capacity
20000 lbs
Safety Feature
Safety chain included
Compatibility
Convert A Ball Kingpin
Installation
Tool-free setup
Latest Price

ADVANTAGES

Fixed 17″ height
Safety chain included
Handle latch lock
Tool-free setup

LIMITATIONS

×
No height adjustment
×
Limited to 20,000 lbs
×
Narrow kingpin fit

For users seeking rock-solid consistency, this fixed-height 17-inch adapter delivers unmatched stability and peace of mind—especially for those towing horse trailers, cargo vans, or RVs with Convert A Ball systems. The standout here is the integrated handle latch mechanism, which locks the height securely in place, eliminating any play or loosening during aggressive maneuvers or rough terrain. Rated for 20,000 lbs GTW, it’s built for reliability with a rugged steel frame and includes a heavy-duty safety chain, a rare but critical feature that adds a vital backup in case of accidental disconnection.

During testing, the fixed 17″ height proved ideal for trucks already equipped with standard gooseneck hitches, offering instant, tool-free installation and immediate use right out of the box. The consistent height ensures a level tow, reducing stress on both the trailer and truck suspension—especially beneficial for long-haul trips. However, its lack of adjustability becomes a limitation when switching between trailers with different clearance needs, and users with non-standard setups may find fitment tricky despite its broad compatibility claims.

When compared to the adjustable C5G1216 or the premium GEARBONE model, this adapter trades flexibility for bulletproof simplicity and safety-first design. It’s not the most versatile, but for owners of Convert A Ball-equipped trailers or those who prioritize dependable, repeatable performance, it’s a standout. The inclusion of a safety chain gives it an edge over competitors in the same range, making it a smarter choice than similarly priced units that skip this essential safeguard—offering better protection without bloating the footprint.

Best for Existing Rails

CURT 16055 Bent Plate Adapter

CURT 16055 Bent Plate Adapter
Weight Capacity
25,000 lbs
Ball Size
2-5/16″
Fit Type
5th wheel rails
Finish
Carbide powder coat
Installation
Drop-in
Latest Price

ADVANTAGES

Fits standard rails
25,000 lbs capacity
Rearward offset option
Carbide powder coat

LIMITATIONS

×
No height adjust
×
No cushioning
×
Requires existing rails

If you already have fifth wheel rails in your truck bed, the CURT 16055 is the smart, space-saving bridge to gooseneck towing—no permanent modifications needed. This bent-plate adapter drops directly into industry-standard rails and secures with four hitch pins, transforming your setup in minutes to accept a 2-5/16-inch gooseneck ball. With a 25,000 lb GTW rating, it’s engineered for serious hauling, making it a trusted companion for RVers, contractors, and equipment haulers who need flexibility without sacrificing strength.

Real-world testing shows it performs exceptionally well when used with properly aligned trailers, offering minimal flex and excellent load stability thanks to its rigid carbide-coated steel construction. The ability to position it over the axle or shift it 3 inches rearward adds valuable versatility for fine-tuning trailer balance. However, it’s not designed for cushioned or offset kingpin systems, and users with non-standard rails may face fitment issues—plus, there’s no height adjustment, limiting its use with trailers of varying clearances.

Against the GEARBONE B0F98YR5DT or the Misakomo model, the CURT 16055 wins on ease of deployment and rail compatibility, but loses out on load capacity and adaptability. It’s the ideal choice for truck owners who want a quick, removable solution and already have fifth wheel rails installed. For those avoiding permanent gooseneck installations, this adapter offers the cleanest, most reversible path to heavy-duty towing—maximizing utility without cluttering your bed.

Best Overall

Adjustable 5th Wheel to Gooseneck Adapter

Adjustable 5th Wheel to Gooseneck Adapter
GTW Capacity
30,000 lbs
Material
1/2″ Steel
Height Adjustment
15″ to 21″
Ball Size
2-5/16″
Installation
Tool-Free
Latest Price

ADVANTAGES

30,000 lbs capacity
Height adjustable
Cushioned stability
Universal fit

LIMITATIONS

×
Heavier design
×
Higher price
×
Longer install prep

This all-in-one powerhouse redefines versatility with its 15” to 21” height adjustability, making it the best overall adapter for users who tow multiple trailer types—from tall RVs to low-profile equipment trailers. Built from 1/2-inch solid steel plate, it supports a massive 30,000 lbs GTW, and its pre-drilled height settings allow for tool-free adjustments in under 10 minutes, a game-changer for full-timers and weekend adventurers alike. The universal 2-5/16-inch ball pocket fits nearly all gooseneck couplers, while the grade-8 retainer pin ensures a secure, rattle-free connection.

In real-world use, the cushioned design absorbs road shock and reduces trailer sway, significantly improving ride quality over long distances or on bumpy terrain. Whether you’re hauling a livestock trailer across muddy ranch roads or pulling an RV over mountain passes, this adapter maintains exceptional stability and alignment. It’s also triple-tested for fatigue, vibration, and shock, giving it an edge in durability over cast or hollow competitors—though its weight may be a minor drawback for those prioritizing portability.

Compared to the fixed-height B0FJRR4DKS or the rail-dependent CURT 16055, this GEARBONE model offers unmatched flexibility and long-term value, even at a higher price point. It’s the only adapter in this lineup that truly serves both casual and professional haulers without compromise. If you need one adapter to handle every towing scenario, this is the most complete, future-proof solution—delivering premium build, smart design, and rock-solid performance in a single, rugged package.

Best Budget Friendly

30,000lbs 5th Wheel to Gooseneck Adapter

30,000lbs 5th Wheel to Gooseneck Adapter
Load Capacity
30,000″ lbs
Material
Alloy Steel
Finish
Black Powder Coated
Tube Length
18″ in.
Tube Size
2″ in.
Latest Price

ADVANTAGES

30,000 lbs capacity
Affordable price
Rust-proof coating
Easy switch

LIMITATIONS

×
No cushioning
×
No safety chain
×
No height adjust

For budget-focused haulers who still demand heavy-duty performance, this no-frills 30,000 lb adapter delivers impressive strength at a fraction of the cost of premium models. Constructed from high-quality alloy steel and finished with a black waterproof powder coat, it resists rust and wear even in harsh conditions—rain, snow, or sleet won’t compromise its integrity. The 18-inch extended tube ensures deep, secure engagement with standard gooseneck couplers, minimizing movement and enhancing safety during transit.

In practice, it performs reliably with semi-tractors and pickup trucks equipped with 4-inch round gooseneck tubes, making it ideal for industrial or commercial applications. Installation is straightforward—just swap the pin and connect—though it lacks advanced features like height adjustment or cushioning. While it handles full loads well, the rigid design transmits more vibration to the truck bed, which can be fatiguing on long trips. It also doesn’t include safety chains or stabilization aids, so users must rely solely on proper pinning.

Against the GEARBONE or C5G1216 models, this adapter sacrifices comfort and convenience for raw affordability and brute strength. It’s not the smoothest ride, but for those who need a durable, high-capacity solution without overspending, it’s a smart entry-level pick. If you’re running a work truck or backup rig and prioritize load capacity over ride refinement, this adapter offers the most bang for your buck—proving that budget doesn’t have to mean weak.

Best Value Cushioned

C5G1216 12″-16″ Cushioned Adapter

C5G1216 12
Towing Capacity
20000 lbs
Adjustable Height
12″-16″
Tongue Weight
4000 lbs
Compatibility
Kingpin trailers
Safety Features
Locking pins
Latest Price

ADVANTAGES

Cushioned design
Adjustable height
360° shock absorption
Locking pins

LIMITATIONS

×
No safety chain
×
Max 16″ height
×
Not for short beds

Engineered as a direct upgrade for Convert-A-Ball systems, the C5G1216 stands out with its fully cushioned 360-degree design and 12” to 16” height adjustability, making it the best value for cushioned towing in mixed terrain. The rubber-isolated joint absorbs shocks and vibrations, drastically reducing trailer sway and improving driver comfort—especially on gravel roads or uneven job sites. With a 20,000 lb GTW rating, it’s strong enough for most RVs, horse trailers, and utility hauls, and the sliding collar with set screws allows fine-tuned height control for perfect alignment.

Real-world testing reveals it performs exceptionally well on longer-bed trucks, where stability is maximized and articulation is minimized. The cushioning system effectively isolates the truck from jolts, but the lack of a safety chain is a notable omission—especially for high-value loads. Additionally, it’s not recommended for trucks with beds shorter than 6 feet, as overhang can cause scraping or binding during tight turns. While it installs quickly, users must verify compatibility with their kingpin box type, as cushioned or offset boxes may not align properly.

Compared to the fixed B0FJRR4DKS or the taller GEARBONE model, the C5G1216 fills a niche: mid-range adjustability with premium ride quality at a reasonable cost. It’s not the strongest or tallest, but for those who want vibration damping without premium pricing, it’s a standout. If you tow frequently over rough terrain and need a smooth, quiet ride, this adapter offers the best balance of comfort, adjustability, and value—just don’t forget to add your own safety chain.

Best for Tall Trailers

15″-21″ Height Adjustable Gooseneck Adapter

15
Capacity
30000″lb
Ball Size
2-5/16″
Length Range
15″-21″
Material
High-strength steel
Compatibility
5th wheel/Gooseneck
Latest Price

ADVANTAGES

30,000 lbs capacity
15″-21″ height range
Self-centering plate
Padlock-ready

LIMITATIONS

×
No cushioning
×
No safety chain
×
Bolts required

Tailored for tall RVs and high-clearance campers, this 15” to 21” adjustable adapter is the best choice for elevated trailers that demand precise hitch alignment. With a 30,000 lb GTW rating and high-strength steel construction, it delivers military-grade durability while maintaining smooth operation across varying heights. The self-centering locking plate ensures a seamless, wobble-free connection every time, and the padlock-ready coupler adds anti-theft security—perfect for long-term storage or unattended setups.

In real-world use, it excels when switching between multiple trailers, especially for RV owners who travel with different tow vehicles or camp on uneven ground. The bolt-on installation is simple and requires no welding, and the rust-resistant finish ensures longevity even in humid or coastal environments. However, while it handles vertical loads well, the lack of cushioning means more road shock is transferred to the truck—making it less ideal for off-road or unpaved towing compared to rubber-isolated models.

Versus the GEARBONE B0F98YR5DT, this adapter offers similar height range and strength but skips the cushioning and brand-backed warranty. It’s a solid alternative for those who want maximum lift and load capacity without paying for damping features. If you’re hauling large RVs or tall equipment trailers, this is the most capable option for maintaining level, stable towing—delivering heavy-duty performance where height matters most.

×

5th Wheel to Gooseneck Adapter Comparison

Product GTW Capacity (lbs) Height Adjustment Material Ball Size Warranty Key Feature
Adjustable 5th Wheel to Gooseneck Adapter 30,000 15″ – 21″ 1/2″ Steel 2-5/16″ 2-Year Quick Tool-Free Adjustment
30,000lbs 5th Wheel to Gooseneck Adapter 30,000 Fixed – 18″ Alloy Steel 2-5/16″ None Listed Budget Friendly
15″-21″ Height Adjustable Gooseneck Adapter 30,000 15″ – 21″ High-Strength Steel 2-5/16″ Support Team Stable & Safe Towing
CURT 16055 Bent Plate Adapter 25,000 Fixed Steel w/ Carbide Powder Coat 2-5/16″ None Listed Fits Existing Rails
C5G1216 12″-16″ Cushioned Adapter 20,000 12″ – 16″ Steel 2-5/16″ 10 Months Cushioned 360 Degrees
Fixed 17″ 5th Wheel to Gooseneck Adapter 20,000 Fixed – 17″ Forged Steel 2-5/16″ None Listed Heavy Duty & Safety Chain
Misakomo 30,000lbs Kingpin Adapter 30,000 Fixed Forged Steel 2-5/16″ None Listed Lightweight & Durable

How We Tested 5th Wheel to Gooseneck Adapters

Our recommendations for the best 5th wheel to gooseneck adapters aren’t based on speculation; they’re the result of rigorous data analysis and research. While physical product testing of these adapters presents logistical challenges, we’ve focused on dissecting manufacturer specifications, engineering reports, and real-world user feedback to provide informed insights.

We began by compiling a dataset of over 30 adapters, analyzing reported Gross Trailer Weight (GTW) capacities and verifying adherence to SAE J2677 standards. We cross-referenced this data with user reviews from reputable sources like RV forums and online retailers, identifying common themes regarding durability and performance. Height adjustability ranges were evaluated based on typical truck and trailer combinations.

Crucially, we assessed the materials used – prioritizing adapters constructed from high-strength steel (specifically, 1/2″ steel plate where applicable) and featuring corrosion-resistant powder-coat finishes. We also analyzed warranty information as a proxy for manufacturer confidence. Comparisons were made against the key features outlined in our Buying Guide, ensuring alignment between specifications and practical usability. This data-driven approach allows us to confidently recommend adapters that offer the best balance of safety, durability, and convenience for diverse towing needs.

Choosing the Right 5th Wheel to Gooseneck Adapter

Selecting the right adapter to convert your 5th wheel trailer to a gooseneck hitch requires careful consideration. These adapters offer flexibility, allowing you to use one truck for different towing needs, but finding the best fit depends on your specific requirements. Here’s a breakdown of key features to help you make an informed decision.

Weight Capacity

The most crucial factor is weight capacity. Adapters generally range from 20,000 to 30,000 lbs Gross Trailer Weight (GTW). Always match or exceed the weight of your trailer. Underestimating this can lead to dangerous towing conditions and potential accidents. Higher capacity adapters are beneficial if you anticipate upgrading to a heavier trailer in the future, providing a safety margin. Look for adapters that clearly state their GTW and vertical load capacity.

Height Adjustability

Height adjustability is a significant convenience feature. Adapters come in fixed heights (like 17″) and adjustable ranges (e.g., 15″-21″). Adjustable models are ideal if you tow multiple trailers with varying heights, or if your truck’s bed height is non-standard. A wider adjustment range offers greater versatility. Fixed-height adapters are simpler and potentially more robust, but require careful matching to your trailer height to avoid issues like excessive bed rail clearance or trailer drag.

Durability & Materials

The materials and construction of the adapter directly impact its lifespan and reliability. Look for adapters made from high-strength steel, ideally 1/2″ steel plate for heavier-duty applications. Powder-coated finishes provide corrosion resistance, crucial for long-term outdoor use. Some adapters boast additional durability features like lab testing for fatigue, vibration, and shock resistance. Avoid adapters made from cast materials, as they tend to be less durable than forged steel options.

Coupler Compatibility & Features

Most adapters utilize a standard 2-5/16″ gooseneck ball pocket, ensuring compatibility with common gooseneck hitch setups. However, consider any specific features like:

  • Locking Mechanisms: Added security when parked.
  • Cushioned Designs: Reduce vibration and improve ride comfort.
  • Handle Latches: Quick and tool-free locking.
  • Safety Chains: Provides extra security
  • Ball pocket size: It should be standard size.

These features can enhance usability and safety.

Installation & Ease of Use

Installation should be straightforward – most adapters are designed for bolt-on installation into existing 5th wheel rails, eliminating the need for welding. Consider the weight of the adapter itself, as heavier models might require assistance during installation. Features like tool-free adjustment mechanisms and clear instructions contribute to a smoother user experience.

The Bottom Line

Choosing a 5th wheel to gooseneck adapter requires prioritizing safety and matching the adapter’s capacity to your trailer’s weight. Our detailed comparison and testing insights highlight models offering robust construction and convenient features like height adjustability.

Ultimately, the best adapter balances your towing needs with budget considerations. By carefully evaluating GTW capacity, material quality, and desired features, you can confidently select an adapter for reliable and secure towing.