Switching from a bumper pull to a gooseneck trailer can transform your towing experience, offering better maneuverability and weight distribution. But you need the right adapter to make the connection seamless.
This guide reviews four top gooseneck adapters for bumper pull trailers, covering electrical harnesses and fifth-wheel converters. Each product is evaluated on compatibility, strength, and ease of use to help you find the best fit for your rig.
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8Ft 7-Way RV Plug to Round Socket Cord Cable Harness for 14'-20' Gooseneck
Best forElectrical connection for gooseneck
- Flexible in cold weather
- 8ft length for reach
ConsiderOnly for 14-20 ft trailers
Fifth Wheel to Gooseneck Adapter 2085295,Kingpin to 2-5/16 Inch Ball Silver
Best forFifth wheel to gooseneck conversion
- One-piece forged steel
- Quick bolt-on installation
ConsiderUnpainted, may rust
T-Built 5th Wheel to Gooseneck Adapter Adjustable Height 12"-15"-17" with 7...
Best forAdjustable height with offset
- Remote release cable
- 20,000 lbs capacity
ConsiderHigher price point
STEGEWOP 15"-21" 5th Wheel to Gooseneck Adapter Hitch, 30000LBS Capacity
Best forHigh capacity adjustable towing
- 30,000 lbs capacity
- 15-21 inch height range
ConsiderHeavier than some adapters
Jetuplusllc 8Ft 7-Way RV Plug Harness
The Jetuplusllc 8Ft 7-Way RV Plug to Round Socket Cord Cable Harness is designed specifically for gooseneck trailers between 14 and 20 feet. It connects your truck’s 7-way RV blade socket to the trailer’s round socket, powering lighting, tail, brake, reverse, turn signals, and auxiliary power. The soft thermoplastic elastomer casing stays flexible even in harsh weather, making it reliable for year-round use.
This harness simplifies electrical hookup without requiring modifications. The 8-foot cord provides enough slack for easy connection, even with a gooseneck adapter in place. If you’re converting a bumper pull trailer to gooseneck, this cable ensures your trailer’s electrical system works seamlessly with your truck’s existing setup.
- Flexible in cold weather
- 8ft length for reach
- Supports all trailer lights
- Only for 14-20 ft trailers
- Not a hitch adapter
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- Heavy duty 7-way RV blade to round socket connector wiring cord cable harness
- Connects to 7-way RV blade female socket to 7-way round female socket
- Trailer front section electrical system for lighting, tail, brake, reverse, turn signals, brakes and auxiliary power
- 8ft cord length with soft thermoplastic elastomer casing remains flexible in harsh weather conditions
- Quick Connect, plug and play. Fits 14'-20' gooseneck trailers, bumper pull trailers and utility trailers with 7-way connection system
MARKETTY Gooseneck Ball Adapter
The MARKETTY Gooseneck Ball Adapter converts your fifth wheel hitch to a 2-5/16 inch gooseneck ball, allowing you to tow a gooseneck trailer with a fifth wheel-equipped truck. It uses a one-piece machined forging process for uniform strength, and the 8-inch diameter middle disc helps distribute the trailer’s weight evenly. The solid 2-inch forged kingpin adds durability for heavy loads.
Installation is straightforward—no welding required—so you can switch between hitch types quickly. Note that the adapter is unpainted, so surface rust may appear over time, but this doesn’t affect performance. If you already have a fifth wheel hitch and want to tow a gooseneck trailer, this adapter offers a cost-effective solution without replacing your entire setup.
- One-piece forged steel
- Quick bolt-on installation
- Solid 2-inch kingpin
- Unpainted, may rust
- No height adjustment
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- Quick installation: This fifth wheel to gooseneck adapter allows your gooseneck trailer to be towed by a fifth wheel hitch, easily and safely installed on your truck without welding or dismantling the truck chassis. Installation takes just a moment.
- Forging process: kingpin to gooseneck ball adapter use one-piece machined, forging process, uniform force, strong enough. The product is unpainted so some surface rust may be present when received.
- Design object: Kingpin adapter specially designed for trailer-fifth wheels, diameter of the middle disc of the fifth wheel to gooseneck adapter is 8", which can better bear the traction force of the trailer when it is on the road, and the use of spacers can better solve the problem of possible shaking.
- Stable structure: The fifth wheel hitch adapter has a solid 2" forged kingpin, hardened steel 2-5/16 inch gooseneck ball with a 1/2" bolster. Tested safety, this Kingpin Adapter is tested according to SAE J2638 specifications for safety and is rated to tow up to 30,000 lbs gross trailer weight rating.
- Please note: Sometimes if the trailers gooseneck is offset you may need to block your fifth wheel plate to keep it from tilting/articulating. You may also have to adjust the main post of your gooseneck trailer to allow the trailer to ride level.
T-Built 5th Wheel to Gooseneck Adapter
The T-Built 5th Wheel to Gooseneck Adapter offers adjustable height settings at 12, 15, and 17 inches, plus a 7 3/4-inch offset for better trailer alignment. It includes a remote release cable, allowing you to unhitch from the cab without crawling under the trailer. The self-latching coupler with a 2-5/16-inch ball pocket can be padlocked for security.
Rated for 20,000 pounds, this adapter is built for heavy-duty towing. It’s constructed in the USA from high-quality materials and comes with a 2-year warranty. The bolt-on installation fits most fifth wheel hitches, including B&W models. If you need height flexibility and the convenience of a remote release, this adapter is a reliable choice for your RV or camper.
- Remote release cable
- 20,000 lbs capacity
- Made in USA
- Higher price point
- Requires bolt-on installation
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- VERSATILE COMPATIBILITY & REMOTE RELEASE CABLE: T-Built 5th wheel to gooseneck adapter adjustable 12"-15"-17" with 7 3/4" Offset and with remote release cable. Works with your B&W turn over ball, or any other goose neck hitch with a 2 5/16" ball
- HEAVY-DUTY TOWING POWER: fifth wheel to gooseneck adapter with a 20,000 Pound Rating. Self latching and remote release coupler. 2-5/16" Ball pocket. Coupler can be pad locked. Attaches to most standard kingpin boxes
- MADE IN USA QUALITY: 5th wheel gooseneck adapter constructed from high-quality materials for long-lasting durability, with a 2-year manufacturer warranty backing your purchase.
- SIMPLE INSTALLATION & SAFETY: 5th wheel adapter to gooseneck easy bolt-on installation to your 5th wheel, with the option to padlock the coupler for extra security during transport or storage
- DURABLE AND EASY INSTALLATION: t-BUILT fifth wheel to gooseneck adapter, converts your 5th wheel to be pulled like your horse trailer or gooseneck trailer.
STEGEWOP 5th Wheel to Gooseneck Adapter
The STEGEWOP 5th Wheel to Gooseneck Adapter Hitch features a 2-5/16-inch ball and a massive 30,000 lbs capacity, making it suitable for the heaviest RVs and trailers. Its adjustable height ranges from 15 to 21 inches, allowing you to level your trailer on uneven terrain. The Q235 steel build ensures durability without adding unnecessary bulk.
This adapter is designed for wide compatibility with RVs, campers, and trailers, expanding your towing options. The bolt-on installation is straightforward, though the adapter’s weight may require two people to handle. If you tow a large fifth wheel camper and want the flexibility of a gooseneck connection, the Stegewop provides the strength and adjustability you need.
- 30,000 lbs capacity
- 15-21 inch height range
- Q235 steel construction
- Heavier than some adapters
- May require truck clearance
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- 【Versatile Towing】The 5th wheel to gooseneck adapter offers a practical way to connect different hitch systems, giving RVs and campers more towing flexibility
- 【Strong Load Capacity】Featuring a 2-5/16" ball and 30000 lbs capacity, this 5th wheel gooseneck adapter supports demanding towing needs while keeping a practical hitch profile
- 【Durable Build】Made from Q235 steel with a 15"-21" adjustable height, this Gooseneck Adapter Hitch balances durability and fit, suiting standard towing requirements
- 【Wide Compatibility】Suitabled for RVs, campers, and trailers, the gooseneck to 5th wheel adapter expands towing options and adapts to different road and travel situations
- 【Stable Connection】The Gooseneck Adapter offers straightforward installation and secure points, helping drivers switch between hitch types with ease
Buyer’s Guide: What to Consider
Choosing a gooseneck adapter for your bumper pull trailer involves matching your hitch system, weight capacity, and installation ease. This guide covers key factors to help you decide.
- Compatibility: Ensure the adapter matches your existing hitch type, whether fifth wheel or gooseneck, and your trailer's kingpin or ball size.
- Weight Capacity: Check the adapter's weight rating against your trailer's gross weight. Options range from 20,000 to 30,000 lbs for heavy-duty towing.
- Height Adjustability: Adjustable height (e.g., 12-21 inches) lets you level your trailer, improving stability and reducing strain on your truck.
- Build Material: Look for one-piece forged steel or Q235 steel construction for strength and durability. Unpainted surfaces may show surface rust.
- Ease of Installation: Consider bolt-on installation for easy setup without welding. Remote release cables add convenience when unhitching.
Conclusion
Each gooseneck adapter serves a specific need, from heavy-duty towing to flexible height adjustments. The Stegewop offers top capacity, while the T-Built provides versatile height options.
For a straightforward fifth-wheel to gooseneck conversion, the MARKETTY adapter is a solid choice. Pair any with the Jetuplusllc harness for reliable electrical connections.