Best Gooseneck Conversion For Fifth Wheel: 10 Options Compared

#1 · Best Overall

1. Lamerto C5G1216

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

Best for: Height-adjustable cushioned towing.

Why it ranks #1: Its 12-to-16-inch adjustment, 20,000-pound gross towing capacity, cushioning and included safety chain make it a well-equipped general-purpose conversion.

A sliding collar adjusts this Lamerto adapter from 12 to 16 inches, helping match the gooseneck ball-to-kingpin height on compatible fifth-wheel setups. Its built-in cushioning addresses shock and vibration during towing, while the included safety chain adds a stated safety component for converting a trailer kingpin connection to a gooseneck.

The 12-to-16-inch adjustment uses a sliding collar and set screws, so the adapter can be locked at a suitable height within that range. Its cushioning structure is intended to reduce towing shock and vibration, which can support a steadier ride and help protect the kingpin and hitch. The product is stated to convert a fifth wheel to gooseneck in minutes without drilling or welding. The listed gross towing capacity is 20,000 pounds.

Skip it if you need an adapter above 16 inches; the T Built 12217F lists 12-, 15-, and 17-inch height positions.

This suits RV owners seeking a cushioned, height-adjustable kingpin adapter with a safety chain and a stated 20,000-pound capacity. Its fit depends on the trailer setup, and the adjustment range is limited to 12 through 16 inches.

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

#2 · Best Air Ride

2. Shocker Quick Air Kit

• Weight: 120.5 lb
• Material: Carbon Steel
• Compatible with Vehicle Type: 12" Wide Pin Box (Also Fits Helux) Safety…

Best for: Air-ride pin-box conversion.

Why it ranks #2: This replacement pin-box kit uses an air hitch, lists 24,000-pound gross capacity and fits specified Lippert, RhinoBox, FlexAir and Rota-Flex models.

Shocker’s Quick Air kit combines a replacement gooseneck pin box with an air hitch, targeting buyers who want air-based shock damping in a fifth-wheel conversion. Its 3-inch offset extender coupler is listed for pickup beds from 5 feet 7 inches through 8 feet, with stated cab and bed clearance even on the shortest listed bed.

The air hitch has a built-in airbag and is intended to absorb jerking, tugging, bumps, and other towing forces, helping reduce stress on passengers, animals, and trailer components. The 3-inch offset extender is specifically listed for 8-, 6-foot-10-inch, 6-foot-6-inch, and 5-foot-7-inch beds, with cab and bed clearance stated for the shortest. The kit replaces the factory pin box and includes a shift-lock coupler for a 2-5/16-inch ball; chains are sold separately.

Skip it if you want chains included; the GELUOXI C5G1216 lists safety chains in its package.

This kit suits owners with a listed compatible pin box who want an air hitch and an offset option across several pickup-bed lengths. The chain kit is separate, and the listed pin-box compatibility should guide selection.

Listed on Amazon as: Shocker Quick Air® 5th Wheel to Gooseneck Air Hitch & Shift Lock Coupler Conversion Kit, Fits Lippert 1621 0719 RhinoBox Flexair Rota-Flex & L05-24,000 lbs GTW

#3 · Highest Capacity

3. Shocker Demco Kit

• Weight: 88 lb
• Compatible with Vehicle Type: 12.5" Wide Pin Box (Also Fits RBW 7028 & M19…

Best for: Demco coupler conversion kit.

Why it ranks #3: The listed 24,000-pound gross rating and Demco coupler for a 2-5/16-inch ball suit compatible pin boxes, though safety chains are sold separately.

This Shocker kit replaces the factory fifth-wheel pin box with a gooseneck pin box and includes a Demco coupler for a 2-5/16-inch ball. That complete conversion approach suits owners with one of the listed pin-box models who want a quick-install gooseneck setup with the coupler’s dual-latching shift lock.

The replacement pin box is listed for Lippert 1716, 1116, and 0115 models, plus specified FabEx models, which makes the compatibility list central to the buying decision. The included Demco coupler fits a 2-5/16-inch gooseneck ball and uses a dual-latching shift lock. Shocker also describes the setup as installing in minutes. Its shock dampening is intended to absorb towing jerks and bumps, while safety chains and pin-box bolts are not included.

Skip it if you need chains in the box; the GELUOXI C5G1216 lists safety chains as included.

This kit suits owners whose pin box matches its listed Lippert or FabEx models and who want a Demco shift-lock coupler. Account for separately sourced chains and bolts, and check the specified compatibility before choosing it.

Listed on Amazon as: Shocker 5th Wheel to Gooseneck & Demco Coupler Conversion Kit, Fits Lippert 1716 1116 0115 FabEx500 503 520 530 560-24,000 lbs GTW

#4 · Cushioned Option

4. Convert-A-Ball C5G1216

• Weight: 67 lb

Best for: Cast-steel cushioned adapter.

Why it ranks #4: This adjustable 12-to-16-inch adapter lists 20,000-pound towing and 4,000-pound pin-weight capacities, with poly cushions designed to absorb shock.

Convert-A-Ball’s C5G1216 pairs adjustable 12-to-16-inch height with poly cushions that absorb shock, giving fifth-wheel owners a gooseneck conversion with a stated ride-damping feature. Its cast-steel construction and 20,000-pound towing capacity make the listed material and load limit central considerations for buyers comparing direct kingpin adapters.

The adjustable height supports multiple applications within the 12-to-16-inch range, helping accommodate different connection heights without relying on a single fixed position. Poly cushions absorb shock, which the listing connects with reduced bounce and vibration and less wear on the trailer and vehicle. The cast-steel construction is a specific material detail, while the stated limits are 20,000 pounds towing capacity and 4,000 pounds pin weight. Those figures should guide setup selection.

Skip it if you need a 17-inch position; the T Built 12217F lists 12-, 15-, and 17-inch height positions.

This suits owners wanting a height-adjustable adapter with poly cushioning and clearly stated towing and pin-weight limits. Check that the 12-to-16-inch range and 4,000-pound pin-weight capacity align with the trailer setup.

Listed on Amazon as: C5G1216 Adjustable 5th Wheel/Gooseneck Adapter – 12"-16"

#5

5. GELUOXI C5G1216

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

Best for: 360-degree cushioned adjustment.

Why it ranks #5: It lists 20,000-pound gross capacity, 4,000-pound tongue weight, 12-to-16-inch adjustment, 360-degree cushioning and included safety chains.

The GELUOXI C5G1216 combines 360-degree cushioning with 12-to-16-inch height adjustment, addressing both towing movement and setup height in one kingpin adapter. Its listing gives a 20,000-pound towing capacity and 4,000-pound tongue-weight figure, and says safety chains are included for the gooseneck conversion.

The sliding collar and set screws allow height adjustment between 12 and 16 inches, helping position the connection within that stated range. GELUOXI also specifies cushioning in 360 degrees and up and down, a feature intended to soften movement while towing. The 20,000-pound towing capacity and 4,000-pound tongue-weight figure give buyers concrete limits to compare with their trailer requirements. Safety chains are included, so the listed package covers that component of the connection.

Skip it if you need a 17-inch height position; the T Built 12217F lists 12-, 15-, and 17-inch positions.

This is a fit for buyers seeking a cushioned kingpin adapter with included safety chains and a stated 20,000-pound capacity. Its height adjustment covers 12 to 16 inches, so setups needing another range should look elsewhere.

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

#6

6. MFZDQL C5G1216

• Weight: 23.13 kg
• Material: Alloy Steel
• Compatible with Vehicle Type: Trailer

Best for: Simple adjustable cushioned adapter.

Why it ranks #6: This adjustable cushioned adapter lists 20,000-pound towing capacity and 4,000-pound maximum vertical pin weight, but included components list only the adapter.

MFZDQL’s C5G1216 offers 12-to-16-inch height adjustment and cushioning in a single adapter, providing a height range for kingpin conversion while addressing towing movement. The listing states a 20,000-pound towing capacity and 4,000-pound maximum vertical pin weight, giving buyers specific limits to compare with their camper and hitch setup.

The adjustable 12-to-16-inch height can help position the connection across different setup heights within that range. Its cushioned construction is intended to make the conversion less rigid during towing, while the stated 20,000-pound towing capacity and 4,000-pound maximum vertical pin weight define important load boundaries. The product is listed for trailer compatibility and includes a gooseneck adapter. Those concise specifications make capacity and height-range matching especially important when choosing it.

Skip it if you need 17 inches of height adjustment; the T Built 12217F lists a 17-inch position.

This fits buyers seeking a straightforward adjustable, cushioned adapter with stated towing and vertical pin-weight limits. Its 12-to-16-inch height range and trailer compatibility listing are key boundaries to weigh for the intended setup.

Listed on Amazon as: C5G1216, 5th Wheel to Gooseneck Adapter 12"-16", Adjustable Cushioned Fifth Wheel to Gooseneck, Towing Capacity 20000 Lbs

#7

7. T-Built Adjustable Adapter

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

Best for: Remote-release offset setups.

Why it ranks #7: Its 12-, 15- and 17-inch height settings, 7 3/4-inch offset and remote release offer useful adjustment, with a listed 20,000-pound rating.

The T Built adapter combines a 73⁄4-inch offset with remote release, adding a distinct positioning and release arrangement to a fifth-wheel-to-gooseneck conversion. Its title lists height positions of 12, 15, and 17 inches and a 20,000-pound rating, making offset, release method, and the stated height choices the key features for comparison.

The 73⁄4-inch offset is the defining fit-related feature, while remote release changes how the adapter is released compared with a connection without that listed feature. The specified height positions—12, 15, and 17 inches—offer several setup choices, and the product title gives a 20,000-pound rating. These details can help narrow selection around connection geometry and height, but the supplied information does not identify specific pin-box models for compatibility.

Skip it if you need named pin-box compatibility; the Shocker DEM-4RND kit lists specific Lippert and FabEx models.

This is suited to buyers who value a 73⁄4-inch offset, remote release, and the listed 12-, 15-, or 17-inch positions. Since specific compatible pin-box models are not supplied, that fit detail remains a key boundary.

Listed on Amazon as: T-Built 5th Wheel to Gooseneck Adapter Adjustable Height 12"-15"-17" with 7 3/4" Offset, Remote Release, Made in USA, Fifth Wheel to Gooseneck Adapter for RV Camper Trailer, 20.000 Pound Rating

#8

8. GEN-Y Nomad Pin Box

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

Best for: Truck-bed space between trips.

Why it ranks #8: This replacement pin box frees the truck bed when not towing and has a self-latching SnapLatch, but its listed maximum capacity is 15 tons.

The GEN-Y Nomad replaces a traditional fifth-wheel pin box with a gooseneck pin box, freeing the truck bed for full use when the camper is not being towed. Its SnapLatch coupler is an automatic, self-latching system, offering a distinct connection workflow for buyers who want a gooseneck arrangement without leaving a fifth-wheel hitch in the bed.

Replacing the traditional pin box rather than adding a bed-mounted fifth-wheel hitch is the key space benefit: the listing says the truck bed is fully usable when the camper is away. The Nomad’s SnapLatch coupler automatically self-latches, simplifying the coupling step described for this setup. It is an alloy-steel pin box with a stated 15-ton maximum towing capacity. Buyers should weigh that capacity and pin-box replacement approach against their trailer’s requirements before choosing it.

Skip it if you need a listed 20,000-pound rating; the Lamerto C5G1216 states that capacity and includes a safety chain.

The Nomad fits buyers prioritizing clear truck-bed space between towing trips and an automatic SnapLatch connection. It is a replacement pin box, not a bed-rail adapter, and its stated capacity is 15 tons.

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

#9

9. Bario C5G1216

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

Best for: Cushioned adapter for longer beds.

Why it ranks #9: It offers 12-to-16-inch adjustment, cushioning and listed 20,000-pound gross capacity, but its description advises against beds under six feet and cushioned pin boxes.

Bario’s C5G1216 adjusts from 12 to 16 inches using a sliding collar and set screws, while its description specifies 360-degree cushioning and included safety chains. The listing gives a 20,000-pound towing capacity and 4,000-pound tongue weight, but explicitly does not recommend the adapter for beds shorter than 6 feet or cushioned kingpin boxes.

The collar-and-set-screw adjustment lets the adapter be set between 12 and 16 inches, while the stated 360-degree cushioning addresses movement during towing. Bario lists a 20,000-pound towing capacity, 4,000-pound tongue weight, and safety chains, covering key connection and load details. The fit restrictions matter: the listing does not recommend this unit for trucks with beds under 6 feet or trailers with cushioned kingpin boxes, narrowing its suitable applications.

Skip it if you have a short bed or cushioned kingpin box; the CURT 16085 mounts to industry-standard rails and lists no such restriction.

This suits buyers with a truck bed at least 6 feet long and a non-cushioned kingpin box who want adjustable height, cushioning, and included chains. Its stated fit restrictions rule out some setups.

Listed on Amazon as: C5G1216 Convert-A-Ball 5th Wheel to Gooseneck Adapter 12"-16"

#10

10. CURT 16085 Spyder

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

Best for: Fifth-wheel rail owners.

Why it ranks #10: It is a rail-mounted gooseneck adapter rated to 25,000 pounds, but it fits industry-standard fifth-wheel rails rather than converting a trailer kingpin directly.

The CURT 16085 mounts to industry-standard fifth-wheel base rails and provides a welded 2-5/16-inch ball, letting a pickup with existing rails tow a gooseneck trailer. Its four-pin installation and removal supports quicker truck-bed access when the adapter is not needed, and the listing states a 25,000-pound gross trailer weight rating.

Because the Spyder mounts to industry-standard fifth-wheel base rails, it targets trucks already equipped with that rail setup rather than a pin-box replacement. The welded 2-5/16-inch ball provides the gooseneck connection point, while four-pin installation and removal lets owners clear the bed for other use. CURT lists a 25,000-pound gross trailer weight rating. This rail-mounted format makes existing base-rail compatibility and the trailer’s rated weight the key selection checks.

Skip it if you have no fifth-wheel base rails; the GEN-Y Nomad replaces a traditional pin box instead.

This suits pickup owners with industry-standard fifth-wheel rails who want a removable gooseneck adapter and a stated 25,000-pound rating. It depends on those rails, so it is not the pin-box replacement route.

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