Best Gooseneck Conversion For Fifth Wheel: Compare 10 Adapters

#1 · Best Overall

1. Shocker Hitch Conversion Kit

• Weight: 89.5 lb
• Material: Outer Material (Powder Coated Steel)
• Compatible with Vehicle Type: 12" Wide Pin Box (Also Fits Helux), 5th Wheel…

Best for: Air-cushioned pin-box conversion.

Why it ranks #1: Replaces the factory pin box and includes a Demco coupler for a 2-5/16-inch ball, chain kit, and cushioning; fit is specified for select pin boxes.

Its replacement gooseneck pin box pairs with a Shocker Gooseneck EZ Latch Demco coupler, enabling a fifth wheel to connect to a 2-5/16-inch gooseneck ball. The kit also includes a chain kit and air pin box, with compatibility listed for several named Lippert-style pin-box models and a 24,000-pound GTW rating.

Replacing the factory pin box with the supplied gooseneck pin box changes the trailer’s connection point, while the adjustable Demco coupler installs into the quick air pin box. The dual-latching coupler is specified for a 2-5/16-inch ball, and the included safety-chain kit covers that component of the setup. Shocker says its shock dampening absorbs towing jolts and bumps, which can reduce stress on passengers, the tow vehicle, and the trailer frame. Compatibility includes Lippert 1621, 0719, RhinoBox, FlexAir, Rota-Flex, and L05.

Skip it if you want to keep your factory pin box and use existing rails; CURT 16085 mounts to industry-standard fifth-wheel base rails.

This kit suits owners with a listed compatible pin-box style who want a replacement-pin-box conversion and shock dampening. Its fit list, 2-5/16-inch ball connection, and 24,000-pound GTW rating define the key boundaries to check.

Listed on Amazon as: Shocker 5th Wheel to Gooseneck & Demco Coupler Conversion Kit with Chain Kit, Fits Lippert 1621 0719 RhinoBox Flexair Rota-Flex & L05-24,000 lbs GTW

#2 · Best Cushioned Adapter

2. GELUOXI C5G1216 Adapter

• Weight: 27.8 kg
• Material: Alloy Steel
• Compatible with Vehicle Type: Trailer, Truck

Best for: Cushioned height-adjustable towing.

Why it ranks #2: This kingpin-to-gooseneck adapter adjusts from 12 to 16 inches, is rated for 20,000 pounds GTW and 4,000 pounds tongue weight, and includes safety chains.

Its 360-degree cushioning and 12-to-16-inch height adjustment let a fifth-wheel kingpin connect to a gooseneck hitch while accommodating different hookup heights. GELUOXI lists a 20,000-pound towing capacity and includes safety chains, giving buyers concrete capacity and chain details to weigh when converting a trailer connection.

The sliding collar and set screws allow height adjustment from 12 to 16 inches, helping position the connection for a trailer and truck setup. Its cushioning works in all directions, including up and down, to soften movement during towing. The adapter converts a trailer kingpin for a gooseneck hitch and is rated for 20,000 pounds GTW and 4,000 pounds tongue weight. Safety chains are included, so buyers can account for them as part of the listed towing setup.

Skip it if you need a connection height above 16 inches; YEOPGYEON HS-TC-38B adjusts up to 21 inches.

This suits fifth-wheel owners who want an adjustable, cushioned kingpin-to-gooseneck connection with safety chains included. Its stated 20,000-pound GTW rating and 12-to-16-inch adjustment range are important limits to consider for your trailer and truck setup.

Listed on Amazon as: C5G1216 12"-16" Adjustable Cushioned 5th Wheel Gooseneck Adapter, Replacement for RV Camper Trailer, GTW 20000 Lbs, with Safty Chain

#3 · Highest Capacity

3. YEOPGYEON Adjustable Adapter

• Material: Carbon Steel
• Compatible with Vehicle Type: RV, Truck

Best for: High-capacity adjustable towing.

Why it ranks #3: Its 30,000-pound GTW rating and four height settings from 15 to 21 inches suit buyers needing more stated capacity and adjustment than 12–16-inch models.

Its 30,000-pound GTW rating and 15-to-21-inch height range enable a higher-capacity fifth-wheel-to-gooseneck connection with multiple leveling positions. YEOPGYEON lists settings at 15, 17, 19, and 21 inches and a universal 2-5/16-inch ball fit, useful details for matching a trailer and truck configuration.

The four listed height settings provide options for different truck-bed heights and towing configurations, with the product description connecting proper trailer leveling to ride stability and control. Its 2-5/16-inch gooseneck ball compatibility specifies the connection size, while the 30,000-pound GTW rating defines a substantial capacity limit. Reinforced Q235 steel is the listed construction material. These features make height selection and ball compatibility central considerations before fitting the adapter to an RV, camper, or heavy trailer.

Skip it if you need an adjustment range starting below 15 inches; GELUOXI C5G1216 adjusts from 12 to 16 inches.

This adapter suits owners of large RVs or heavy trailers who need a 30,000-pound GTW rating and higher adjustment settings. Its range begins at 15 inches, so lower connection heights fall outside the listed settings.

Listed on Amazon as: 30,000 lbs 15"-21" 5th Wheel to Gooseneck Adapter Hitch for 2-5/16" Ball

#4

4. Lamerto C5G1216 Adapter

• Weight: 27.8 kg
• Material: Stainless Steel
• Compatible with Vehicle Type: Car, Trailer, Truck

Best for: No-drill cushioned conversion.

Why it ranks #4: The 12–16-inch adjustable model includes a safety chain and a cushioning structure; its listing describes a direct kingpin-mounted conversion without drilling or welding.

Its 12-to-16-inch adjustable body and direct kingpin mounting enable a fifth wheel to connect to a gooseneck without drilling or welding. Lamerto pairs that installation approach with a cushioned hitch and safety chain, making the listed setup relevant to owners who want height adjustment and impact cushioning in one adapter.

The sliding collar and set screws lock a selected height between 12 and 16 inches, which helps accommodate different truck-bed and trailer connection heights. Lamerto says the adapter mounts directly to the kingpin and requires no drilling or welding, simplifying the conversion workflow. Its built-in cushioning is described as reducing shock and vibration, while the included heavy-duty safety chain adds a listed safety component. The stated capacity is 20,000 pounds GTW.

Skip it if you need more than 16 inches of height adjustment; YEOPGYEON HS-TC-38B offers settings through 21 inches.

Lamerto fits owners seeking a cushioned, adjustable conversion that mounts directly to a kingpin without drilling or welding. Consider its 12-to-16-inch height range and 20,000-pound GTW rating against your trailer’s connection height and towing requirements.

Listed on Amazon as: C5G1216 12"-16" Adjustable Height Cushioned 5th Wheel to Gooseneck Adapter w/Safety Chain for Camper/RV/Trailer's Kingpin Box, Fifth Wheel to Gooseneck Coupler Towing Adapter, GTW 20000

#5 · Best Warranty

5. PSAUTO Cushioned Adapter

• Material: Alloy Steel
• Compatible with Vehicle Type: Fifth Wheel RV

Best for: Straightforward adjustable conversion.

Why it ranks #5: This adjustable cushioned adapter converts a fifth-wheel to gooseneck and lists a limited lifetime warranty; its maximum towing capacity is 9,071.85 kilograms.

Its 12-to-16-inch adjustable height enables a fifth wheel to convert to a gooseneck connection, with PSAUTO describing the conversion as taking minutes. The listing identifies alloy-steel construction and a 9,071.85-kilogram maximum towing capacity, giving buyers specific material and capacity information for evaluating this adapter.

The stated 12-to-16-inch adjustment range gives buyers several connection heights to work with when matching a fifth-wheel trailer to a gooseneck hitch. PSAUTO describes conversion as taking minutes, which speaks to the intended workflow, though the supplied details do not specify installation hardware or a mounting method. The adapter is listed for fifth-wheel RVs and made from alloy steel. Its maximum towing capacity is 9,071.85 kilograms, a key limit for choosing a compatible towing setup.

Skip it if you want safety chains or a specified mounting method; GELUOXI C5G1216 explicitly lists included safety chains.

This may suit fifth-wheel RV owners who want an adjustable-height adapter and can work from the supplied capacity and compatibility details. The listing does not specify the mounting method, so that information is a relevant boundary when planning installation.

Listed on Amazon as: Fifth Wheel to Gooseneck Cushioned Trailer Hitch Adapter – 12" to 16" Adjustable Height Converter Gooseneck Trailer Hitch Adapter

#6

6. Weonefit C5G1216 Adapter

• Weight: 27.6 kg
• Material: Alloy Steel, Metal

Best for: Cushioned adapter for full-size beds.

Why it ranks #6: It offers 12–16-inch adjustment, 20,000-pound towing capacity, 4,000-pound pin capacity, and a safety chain, but warns against short beds and cushioned kingpin boxes.

Its 12-to-16-inch sliding-collar adjustment enables a fifth-wheel kingpin to connect to a gooseneck hitch, while cushioning and a 20,000-pound towing rating define the setup. Weonefit also lists a 4,000-pound pin-weight capacity and identifies truck-bed and kingpin-box configurations it does not recommend.

The sliding collar and set screws allow height selection anywhere from 12 to 16 inches, helping set the connection height for a compatible trailer and truck. The adapter is rated for 20,000 pounds towing and 4,000 pounds pin weight, so both figures matter when assessing a load. Its cushioned construction is part of the listed product description. Weonefit specifically advises against use with trucks whose beds are shorter than six feet and with cushioned-style kingpin boxes, making those fit boundaries important before installation.

Skip it if you have a short truck bed or cushioned kingpin box; Lamerto C5G1216 lists broad kingpin-box compatibility without those stated exclusions.

This is for owners with a compatible kingpin box and a truck bed at least six feet long who want cushioning and adjustable height. Its stated 20,000-pound towing and 4,000-pound pin-weight limits also warrant attention.

Listed on Amazon as: C5G1216 12"-16" Adjustable Height Cushioned 5th Wheel to Gooseneck Adapter, for Camper/RV/Trailer's Kingpin Box, Towing Capacity 20000 Lbs, with Safty Chain

#7

7. Stegewop 15-Inch Adapter

• Compatible with Vehicle Type: RV

Best for: Fixed-height heavy-duty hauling.

Why it ranks #7: The 15-inch adapter is rated for 30,000 pounds and uses a 2-5/16-inch forged ball, but the listing provides less adjustment and fit detail than higher-ranked choices.

Its 30,000-pound capacity, Q235 steel construction, and 15-inch vertical rise enable a fixed-height gooseneck connection for heavy RV or livestock-trailer hauling. The forged 2-5/16-inch ball provides a specified connection point, while the 15-inch rise is presented as clearance between the truck bed and trailer overhang.

The fixed 15-inch rise creates clearance between the truck bed and trailer overhang, which the listing says helps avoid contact during sharp turns and uneven-terrain maneuvers. A forged 2-5/16-inch ball supplies the specified hitch connection, and Q235 steel is listed for the adapter’s construction. Its 30,000-pound towing capacity addresses heavier hauling needs, including RVs and livestock trailers. Because the supplied height is a single 15-inch figure rather than an adjustment range, buyers should treat it as a fixed-height option.

Skip it if you need multiple height settings; YEOPGYEON HS-TC-38B offers four positions from 15 to 21 inches.

This suits heavy-hauling owners whose setup works with a 15-inch rise and 2-5/16-inch ball. Its 30,000-pound capacity is listed, but buyers needing flexibility in connection height should account for its fixed-height specification.

Listed on Amazon as: 15" 5th Wheel to Gooseneck Adapter Hitch, 30,000 lbs

#8

8. FlexHitch Bolt-On Adapter

• Weight: 40 lb
• Material: Alloy Steel
• Compatible with Vehicle Type: Pickup Trucks

Best for: Bolt-on standard-kingpin conversion.

Why it ranks #8: This standard-kingpin-box adapter adjusts from 14 to 19 inches and lists 20,000-pound GTW, but installation requires drilling four holes in the kingpin box.

FlexHitch lists 20,000 pounds GTW, 4,000 pounds VTW, and an essential installation requirement: drilling four holes in the kingpin box.

The 14-to-19-inch adjustable height gives owners several positions for matching a standard kingpin box to a truck’s gooseneck connection. The bolt-on approach uses four drilled holes for bolt-and-nut mounting, so installation involves modifying the camper’s kingpin box rather than simply attaching a clamp. FlexHitch lists 20,000 pounds GTW and 4,000 pounds VTW, with a safety chain included. The conversion also removes the need for a large fifth-wheel hitch, freeing truck-bed space when that hitch would otherwise occupy it.

Skip it if you will not drill your camper’s kingpin box; CURT 16085 installs on industry-standard fifth-wheel rails instead.

This fits owners willing to drill a standard kingpin box for a bolt-on conversion and seeking a 14-to-19-inch range. Its stated capacities and required four-hole modification are important boundaries for the installation decision.

Listed on Amazon as: Fifth Wheel to Gooseneck Adapter, Adjustable Height 14''-19'', Bolt-On to Standard Kingpin Box, 20000 lbs GTW 4000 lbs VTW, Fits Standard 5th Wheel Camper, Includes Safety Chain

#9

9. GEN-Y Hitch Nomad Pin Box

• Weight: 95.5 lb
• Material: Alloy Steel
• Compatible with Vehicle Type: RV, Truck

Best for: Truck-bed space reclaiming.

Why it ranks #9: The Nomad replaces a fifth-wheel pin box with a gooseneck pin box and has a SnapLatch coupler, but its stated capacity is 15 tons.

The Nomad replaces a traditional fifth-wheel hitch with a fifth-wheel-to-gooseneck pin box, enabling use of the truck bed when the camper is not being towed. GEN-Y also lists a SnapLatch automatic self-latching coupler, giving owners a specific connection feature alongside the space-saving conversion approach.

Replacing the traditional fifth-wheel hitch with the Nomad pin box removes the need for that hitch in the truck bed when the camper is parked, according to the product description. Its SnapLatch is described as an automatic, self-latching coupler, which can simplify the coupling step. GEN-Y lists a 15-ton maximum towing capacity and alloy-steel construction. The supplied facts identify RV and truck compatibility, but do not provide an adjustment range or further mounting steps, so those remain relevant planning considerations.

Skip it if you need a stated adjustable-height range; YEOPGYEON HS-TC-38B lists settings from 15 to 21 inches.

The Nomad suits RV owners who want a gooseneck pin-box conversion and truck-bed use when not towing. Its automatic SnapLatch and 15-ton capacity are stated, but buyers needing a documented height range should account for that missing specification.

Listed on Amazon as: GEN-Y Hitch Nomad 5th Wheel to Gooseneck Static Pin Box | Made in USA

#10

10. CURT 16085 Spyder Adapter

• Weight: 50 lb
• Material: carbide
• Compatible with Vehicle Type: Truck

Best for: Existing fifth-wheel rail owners.

Why it ranks #10: This 25,000-pound adapter mounts to industry-standard fifth-wheel rails to tow gooseneck trailers; it does not convert a fifth-wheel trailer’s kingpin setup.

Its four-pin installation on industry-standard fifth-wheel base rails enables a pickup already equipped with rails to tow a gooseneck trailer. The CURT Spyder is rated for 25,000 pounds GTW and has a welded 2-5/16-inch ball, while its removable pin connection allows easier truck-bed access.

The rail-mounted plate uses four pins for installation and removal, letting owners clear the truck bed when they need access rather than leave the adapter in place. It mounts to industry-standard fifth-wheel base rails, making existing rail hardware central to its compatibility. The welded 2-5/16-inch trailer ball establishes the gooseneck connection, and the 25,000-pound GTW rating sets the listed towing limit. This approach suits a truck with rails already installed rather than a kingpin-box replacement conversion.

Skip it if you do not have fifth-wheel rails installed; FlexHitch GA81-1 bolts to a standard kingpin box instead.

The Spyder suits pickup owners with industry-standard fifth-wheel rails who want to switch between fifth-wheel and gooseneck towing. Its 25,000-pound GTW rating and rail-dependent installation define the key capacity and fit boundaries.

Listed on Amazon as: CURT 16085 Spyder 5th Wheel to Gooseneck Adapter Hitch, Fits Industry-Standard Rails, 25,000 lbs, 2-5/16-Inch Ball