Best Gooseneck Attachment For 5Th Wheel

#1 · Best Overall

1. GELUOXI C5G1216

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

Best for: Height-adjustable cushioned towing.

Why it ranks #1: Directly converts a trailer kingpin for gooseneck towing, with cushioned movement, 12-to-16-inch adjustment, 20,000-pound GTW, and a safety chain.

The GELUOXI C5G1216 combines 12-to-16-inch height adjustment with 360-degree cushioning, letting a fifth-wheel kingpin connect to a gooseneck hitch while accommodating different trailer heights. Its listed 20,000-pound towing capacity and included safety chains make it a candidate for RV and camper owners seeking an adjustable coupler.

The sliding collar and set screws allow height adjustment, helping position the connection for a trailer setup within the stated 12-to-16-inch range. Its 360-degree cushioning, including up-and-down movement, is intended to reduce the shock transmitted through the towing connection. The adapter converts a kingpin to connect with a gooseneck hitch, and the included safety chains add a separate safety component. The stated limits are 20,000 pounds gross vehicle weight and 4,000 pounds tongue weight.

Skip it if you need a stated rating above 20,000 pounds; the CURT 16085 is rated for up to 25,000 pounds gross trailer weight.

Choose this GELUOXI adapter if your fifth-wheel kingpin needs a cushioned gooseneck connection and its 12-to-16-inch adjustment suits your setup. Its listed 20,000-pound gross vehicle weight and 4,000-pound tongue-weight limits remain important boundaries.

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

#2 · Best Height Range

2. Weonefit C5G1216

• Weight: 27.6 kg

Best for: Kingpin conversion with fit guidance.

Why it ranks #2: This kingpin-box adapter adjusts from 12 to 16 inches and lists 20,000-pound towing and 4,000-pound pin-weight capacities; it cautions against short beds.

The Weonefit C5G1216 adjusts from 12 to 16 inches and converts a trailer kingpin to a gooseneck connection, enabling height matching within that range. It lists a 20,000-pound towing capacity and 4,000-pound pin-weight limit, while also identifying short truck beds and cushioned kingpin boxes as fit concerns.

A sliding collar and set screws allow adjustment anywhere from 12 to 16 inches, helping accommodate different kingpin-to-gooseneck heights. The adapter is specified for a 20,000-pound towing capacity and 4,000-pound pin weight, giving buyers two distinct load limits to consider. Weonefit explicitly does not recommend it for trucks with beds shorter than six feet or for cushioned-style kingpin boxes. Those stated restrictions make checking the intended configuration essential before choosing this kingpin conversion.

Skip it if you have a cushioned kingpin box or a truck bed under six feet; the CURT 16085 mounts to standard fifth-wheel rails instead.

Choose the Weonefit if your trailer has a compatible kingpin box and you need a 12-to-16-inch adjustable conversion. Its stated bed-length and kingpin-box restrictions are central fit boundaries, alongside its towing and pin-weight limits.

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

#3 · Cushioned Pick

3. Lamerto C5G1216

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

Best for: No-drill adjustable RV conversion.

Why it ranks #3: A direct kingpin adapter with 12-to-16-inch adjustment, a cushioning structure, and an included safety chain for a compatible camper or trailer.

Lamerto’s C5G1216 adjusts from 12 to 16 inches and mounts directly to the kingpin without drilling or welding, enabling a fifth-wheel trailer to connect to a gooseneck hitch. Its sliding collar, set screws, cushioning, and included safety chain address setup and towing considerations for camper and RV owners.

The adjustable body spans 12 to 16 inches, while the sliding collar and set screws provide a way to lock the selected height. That range can help match the connection to different truck-bed and trailer configurations. Lamerto says the adapter mounts directly to the kingpin without drilling or welding, simplifying installation steps. Its built-in cushioning is intended to reduce shock and vibration during towing, and a heavy-duty safety chain is included. The listing says it fits most camper, RV, and trailer kingpin boxes.

Skip it if you require a clearly stated towing-capacity rating; the CURT 16085 lists a 25,000-pound gross trailer weight rating.

This suits an RV or camper owner who wants a height-adjustable kingpin conversion without drilling or welding. Its cushioning and chain add relevant towing features, but buyers who need a published capacity figure should weigh that missing specification.

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

#4 · Highest Capacity

4. YEOPGYEON 30K Adapter

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

Best for: Tall-range adjustable heavy towing.

Why it ranks #4: Its listed 30,000-pound GTW and 15-to-21-inch settings suit buyers needing more height range and capacity than the 12-to-16-inch options.

The YEOPGYEON adapter spans 15 to 21 inches in four settings and is rated for 30,000 pounds gross trailer weight, enabling height selection for different truck-bed and trailer configurations. Its 2-5/16-inch ball compatibility targets gooseneck connections where a higher adjustment range is useful.

The four stated settings—15, 17, 19, and 21 inches—let owners choose among defined heights for trailer leveling across different configurations. That range sits above the 12-to-16-inch adjustment offered by some kingpin adapters, making the required connection height an important selection factor. Reinforced Q235 steel construction is specified alongside a 30,000-pound gross trailer weight rating. The universal 2-5/16-inch gooseneck ball fit provides the connection interface; buyers should match both the height and rating to their setup.

Skip it if you need a lower 12-to-16-inch adjustment range; the Weonefit C5G1216 offers that shorter range.

This YEOPGYEON suits buyers who need a higher connection setting and a stated 30,000-pound gross trailer weight rating. Its 15-inch minimum is an important fit boundary, so select it only when the available height settings suit the trailer.

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

#5

5. Misakomo Kingpin Adapter

• Material Type: Alloy Steel
• Compatible with Vehicle Type: Truck, Tractor, Trailer

Best for: Forged-steel kingpin conversion.

Why it ranks #5: This forged-steel, one-piece adapter connects a fifth-wheel kingpin to a 2-5/16-inch gooseneck ball, though the supplied data gives no capacity rating.

Misakomo uses forged steel and one-piece machining for its kingpin-to-gooseneck-ball adapter, enabling a fifth-wheel kingpin to connect to a gooseneck ball. The listing specifies a 2-inch kingpin size and 2-5/16-inch ball size, giving buyers concrete connection dimensions to match against their setup.

The one-piece machined forged-steel construction is described as distributing force evenly and resisting breakage, while a protective coating is specified for rust resistance. Those construction details matter for buyers considering a direct kingpin-to-ball conversion. The supplied product specifications identify a 2-inch kingpin size and a 2-5/16-inch ball size, which define the connection dimensions. The listing does not provide a towing-capacity figure, so buyers needing a stated load rating will have less capacity information to compare.

Skip it if you require a published towing-capacity figure; the CURT 16085 specifies a 25,000-pound gross trailer weight rating.

This Misakomo adapter suits buyers seeking a forged-steel kingpin-to-ball connection and whose setup matches its stated connection sizes. Its missing towing-capacity figure is an important boundary for anyone comparing documented load limits.

Listed on Amazon as: Fifth Wheel to Gooseneck Adapter, Kingpin to Gooseneck Ball Hitch Adapter

#6 · Rail-Mount Pick

6. CURT 16085 Spyder

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

Best for: Quick-change rail-mounted towing.

Why it ranks #6: For trucks with industry-standard fifth-wheel rails, it provides a defined 25,000-pound GTW rating, a welded 2-5/16-inch ball, and four-pin installation.

The CURT 16085 uses a four-pin installation and removal system on industry-standard fifth-wheel rails, enabling a pickup to switch to gooseneck towing and regain truck-bed access. Its welded 2-5/16-inch ball and 25,000-pound gross trailer weight rating make it a rail-mounted option for compatible trucks.

Mounting to industry-standard fifth-wheel base rails lets owners with that rail setup use a gooseneck trailer without replacing the rail system. The four-pin installation and removal process supports taking the adapter out when truck-bed access is needed. A welded 2-5/16-inch trailer ball provides the gooseneck connection point, while the stated 25,000-pound gross trailer weight rating sets a clear towing boundary. This is a rail adapter, not the adjustable kingpin coupler style described by some other products.

Skip it if you need a kingpin-mounted height-adjustable coupler; the Lamerto C5G1216 offers 12-to-16-inch adjustment at the kingpin.

Pick the CURT 16085 if your pickup already has industry-standard fifth-wheel rails and you value removable installation for bed access. Its 25,000-pound rating and fixed welded ball suit rail-based conversion, not an adjustable kingpin adapter.

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

#7

7. NUOVEPE Gooseneck Plate

• Material Type: Heavy Duty Hardened Steel
• Compatible with Vehicle Type: Gooseneck Trailers, Truck
• Weight: 15.94 kg

Best for: High-capacity standard-rail towing.

Why it ranks #7: This plate fits standard fifth-wheel rails and lists 30,000-pound GTW with 6,500-pound vertical load, but it is a truck-bed rail insert rather than a kingpin adapter.

NUOVEPE’s heavy-duty steel plate is rated for 30,000 pounds gross trailer weight and 6,500 pounds vertical load, enabling demanding gooseneck towing from a pickup’s standard fifth-wheel rails. Its 2-5/16-inch ball and stated rail compatibility suit owners converting a rail-equipped truck for trailers, boats, or farm equipment.

The plate fits standard fifth-wheel rails, so it provides a gooseneck connection using an existing rail system. Its 2-5/16-inch ball forms the stated connection point for compatible gooseneck trailers. NUOVEPE lists a 30,000-pound gross trailer weight rating and a 6,500-pound maximum vertical load, giving buyers separate limits to compare with their intended loads. Heavy-duty steel construction is specified for the plate. The product description identifies dump, large, boat, and farm-related trailers among possible applications.

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

This NUOVEPE plate fits truck owners seeking high stated load limits and a standard-rail conversion for gooseneck towing. Its fixed plate format is the boundary: choose a different style if adjustable kingpin height is required.

Listed on Amazon as: Gooseneck Hitch Plate, 5th Wheel Adapter with 2-5/16" Ball

#8

8. CURT 16055 Rail Hitch

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

Best for: Rail users needing ball offset.

Why it ranks #8: A rail-mounted option with a 2-5/16-inch ball and four-pin removal; it can be flipped for a three-inch rearward offset, but no capacity is listed here.

The CURT 16055 can be positioned over the axle or flipped for a three-inch rearward offset, giving fifth-wheel-rail users a choice of gooseneck ball placement. It mounts to industry-standard rails and uses a four-pin installation and removal setup for access to the truck bed when removed.

The two positioning options let an owner choose an over-axle ball location or a three-inch rearward offset, making placement the product’s key configuration feature. Its compatibility with industry-standard fifth-wheel base rails means it serves trucks equipped with that rail system. Four-pin installation and removal supports taking the hitch out when the bed is needed for other tasks. The welded 2-5/16-inch trailer ball supplies the gooseneck connection; the listing gives a 25,000-pound capacity.

Skip it if you need a kingpin-mounted adapter with adjustable height; the Weonefit C5G1216 offers a 12-to-16-inch range.

This CURT suits pickup owners with standard fifth-wheel rails who want an over-axle or three-inch rearward ball position. Consider the fixed offset choices and rail-based installation when deciding whether its configuration matches your truck and trailer.

Listed on Amazon as: CURT 16055 5th Wheel Rail Gooseneck Hitch, 25,000 lb, 3" Offset

#9

9. DarkSmarts Gooseneck Plate

• Material Type: Alloy Steel
• Compatible with Vehicle Type: Truck

Best for: Corrosion-resistant heavy-load rail plate.

Why it ranks #9: The standard-rail plate lists 30,000-pound GTW and 7,500-pound tongue weight, but its format serves a rail-equipped truck rather than attaching to a trailer kingpin.

DarkSmarts pairs a 30,000-pound gross trailer weight rating with a 7,500-pound tongue-weight rating, enabling heavy gooseneck hauling from standard fifth-wheel rails. Its high-strength steel plate has an upgraded powder coating for rust and corrosion resistance, a practical feature for equipment, livestock, and farm-trailer use.

The plate converts standard fifth-wheel rails into a gooseneck connection, giving compatible truck owners a rail-based alternative for livestock, equipment, dump trailers, and farm machinery. Its 30,000-pound gross trailer weight and 7,500-pound tongue-weight ratings set separate load limits to consider. High-strength steel forms the structure, while the upgraded powder coating is specified to improve rust and corrosion resistance. The listing identifies a 2-5/16-inch ball, supplying the connection size for the gooseneck setup.

Skip it if you need a kingpin-mounted adjustable-height coupler; the Lamerto C5G1216 adjusts from 12 to 16 inches.

Choose DarkSmarts if your truck has standard fifth-wheel rails and your priority is a plate with substantial stated load ratings and corrosion-resistant coating. Its rail-mounted format is the key fit boundary for kingpin-adapter shoppers.

Listed on Amazon as: Gooseneck Hitch Plate for 5th Wheel Rails, 2-5/16" Ball

#10

10. TOWGUARD FG-81

• Material Type: Alloy Steel, Iron, Rubber Cushioning
• Compatible with Vehicle Type: 5th Wheel Trailer, Gooseneck Trailer, King…
• Weight: 22.4 kg

Best for: Convert-A-Ball kingpin setups.

Why it ranks #10: Its description converts a gooseneck setup to accept fifth-wheel trailers, the reverse of the requested conversion; listed capacity is also only 5,000 pounds.

TOWGUARD’s cushioned adapter adjusts from 12 to 16 inches and is specified for Convert-A-Ball kingpin boxes, enabling a gooseneck setup to accommodate compatible fifth-wheel trailers. A safety chain is included, while the listed 5,000-pound maximum towing capacity makes its rating a key factor in choosing an application.

The 12-to-16-inch vertical adjustment helps set the connection height for different truck-bed configurations, while the cushioning system is intended to absorb road shock and reduce wear on the adapter and kingpin box. The listing specifically identifies compatibility with Convert-A-Ball kingpin boxes, so that named fit is central to selection. A heavy-duty safety chain is included. Its maximum towing capacity is listed as 5,000 pounds, a limit buyers should compare with their trailer and load requirements.

Skip it if you need a higher stated towing rating; the GELUOXI C5G1216 lists 20,000 pounds gross vehicle weight capacity.

Consider this TOWGUARD for a compatible Convert-A-Ball kingpin box where adjustable height and cushioning matter. Its stated 5,000-pound maximum towing capacity is a firm boundary, so match the rating to the intended trailer and load.

Listed on Amazon as: Adjustable Cushioned 5th Wheel to Gooseneck Ball Adapter, 12"-16", Compatible with Convert-A-Ball King Pin Box, Heavy Duty Safety Chain