Answering the question of choosing an inverted fifth wheel adapter, this guide highlights five reliable options that convert a fifth wheel into a gooseneck hitch. These adapters are best for truck owners needing flexibility, easier hitching, and compatibility with various trailers. The top picks vary in load capacity, height adjustability, and safety features to suit different towing scenarios. The following table provides quick references to each product for fast comparison.
| Product | Max Load | Height Range | Best For |
|---|---|---|---|
| PSAUTO Store 12″–16″ Cushioned Adapter | Not specified | 12″–16″ | General Towing with Cushioned Comfort |
| GELUOXI C5G1216 12″–16″ Cushioned Adapter | 20,000 lb GTW | 12″–16″ | RV/ Camper to Gooseneck Conversion |
| Misakomo Kingpin to Gooseneck Adapter | 30,000 lb | Fixed 8″ middle disc designed | Heavy-duty semi-trailer applications |
| Lamerto C5G1216 12″–16″ Cushioned Adapter | 20,000 lb | 12″–16″ | Camper/ RV with Safety Chain Kit |
| Sidasu 5th Wheel to Gooseneck Adapter | 30,000 lb | Fixed mounting design | Semi-tractor and heavy trailer towing |
PSAUTO Store Cushioned 12″–16″ Adapter

The cushioned gooseneck adapter converts your 5th wheel into a gooseneck within minutes. It emphasizes simple installation and compatibility with standard kingpin boxes. Best for general towing where user comfort and reduced shock are valued. The data highlights a straightforward height conversion, with safety features implied by the design. Caution: explicit load ratings aren’t stated in the brief features; verify compatibility with your vehicle and trailer before use.
GELUOXI C5G1216 Cushioned Adapter

Best for RV and camper setups requiring a 12″ to 16″ adjustable height with cushioned support. This adapter provides a 360-degree cushioned joint and includes safety chains, offering improved stability and reduced vibration during towing. It supports up to 20,000 lb GTW with a 4,000 lb tongue weight. Choose this if you prioritize adjustable height and additional safety features; avoid if your truck bed is shorter than 6 feet or if your kingpin box cannot accommodate a cushioned design.
Misakomo Kingpin to Gooseneck Adapter

Best for heavy-duty towing with a 30,000 lb capacity. This forged steel, one-piece machined adapter is designed for maximum durability and wear resistance, with a protective coating for rust resistance. The 2-inch kingpin and 2-5/16 inch gooseneck ball provide strong towing performance. The 8″ diameter middle disc helps manage dynamic forces during towing, reducing wobble. Caution: not all magnetic or cushioned components are included; check compatibility with your trailer’s kingpin box.
Lamerto C5G1216 Cushioned Adapter with Safety Chain

Best for camper and RV setups requiring adjustable height and built-in safety features. The design offers 12″–16″ height adjustability with a cushioned hitch to reduce shock, plus a complete safety kit that includes heavy-duty safety chains. This makes it suitable for longer trips where stability is crucial. Limitation: ensure your vehicle’s bed length supports the full height range and check compatibility with your kingpin box.
Sidasu 5th Wheel to Gooseneck Adapter

Best for heavy-duty semi-tractor and pickup truck combinations needing a 30,000 lb load capacity. This black powder-coated adapter is designed for rugged towing, with a robust construction approach for reliable long-term use. It suits users who require a straightforward, high-capacity solution. Caution: the design is a fixed mounting style, which may offer less adjustability than cushioned versions.
Buying Guide
Key considerations for choosing an inverted fifth wheel adapter include load capacity, height adjustability, and safety features. If you tow large trailers regularly, prioritize higher GTW ratings (20,000–30,000 lb) and durable materials like forged steel with rust-resistant coatings. Height adjustability helps align your trailer’s kingpin with the gooseneck ball, reducing hitching effort and wobble. Cushioned designs provide smoother towing by absorbing shocks, but may add complexity or price. Safety chains and locking mechanisms are essential for preventing accidental separation. Always verify compatibility with your truck bed length and trailer kingpin type before purchasing.
Frequently Asked Questions
- What is an inverted fifth wheel adapter?
An inverted fifth wheel adapter converts a fifth-wheel hitch to a gooseneck configuration, enabling a different towing connection for certain trailers.
- What load capacity should I look for?
Choose a model that matches or exceeds your trailer’s gross vehicle weight rating (GTW). Common ranges are 20,000–30,000 lbs.
- Why choose Cushioned vs. Non-Cushioned?
Cushioned adapters reduce shock and vibration, improving stability, but may cost more and be less adjustable in some designs.
- Are safety chains included?
Some models include safety chains or pins as part of the kit. Verify what is included before purchase.
- Can these adapters fit all kingpin boxes?
Adapters vary in compatibility. Check height ranges (12″–16″ is common) and the kingpin dimensions to ensure a proper fit.
- Do I need professional installation?
For high-capacity towing, professional installation is recommended to ensure secure mounting and safety compliance.