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Always the correct part
We know our products
Quality Products
Free Shipping!
Not compatible with shallow-hole gooseneck hitches (Shank hole is 2.25" from plate surface); not compatible with turret-style pin boxes, such as Sidewinder or Turning Point
Capacity limited to lowest-rated towing component
Factory or aftermarket bedliners may interfere with installation
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Gross Trailer Weight (Pounds): 20,000 LB
Installation Time Exact (Minutes): 0
CURT 5th wheel adapter plates are a fast, dependable way to convert your gooseneck trailer hitch into a set of 5th wheel rails to accept a 5th wheel hitch and switch back again. With gooseneck installation brackets and a gooseneck hitch already mounted, the adapter plate post simply mounts into the gooseneck trailer ball hole using a solid shank and is secured with the locking mechanism provided by the gooseneck hitch. One of the most attractive features about CURT 5th wheel adapter plates is that they are practically instantaneous: insert the shank, apply the locking mechanism and just like that you have a sturdy pair of 5th wheel rails. This CURT 5th wheel adapter plate features a square shank and is compatible with B & W Turnoverball gooseneck hitches with a square shank removable ball. It features a gross trailer weight capacity of 20,000 lbs., allowing it to adapt and accept a number of 5th wheel hitches up to 20K. This 5th wheel adapter plate offers a simple pin-and-clip conversion for gooseneck hitches and has multiple mounting points to accept either 5th wheel legs or a 5th wheel roller.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494CURT B2B University: X5 Gooseneck-to-5th Wheel Adapter Plate
The Curt 16310 X5 5th wheel adapter is designed for B&W standard center gooseneck hitches. However, it will NOT fit B&W centers 909 and 1256. Check your hitch model before purchasing. If you have a standard center B&W gooseneck, this adapter will work with your existing hitch.
Yes. According to the manual, bed liners and bed mats may affect the fit of the X5 adapter. If you have either installed, verify clearance before finalizing installation, or consider temporary removal during installation to confirm proper fit.
No. The manual explicitly states 'NO DRILLING REQUIRED' for this installation.
The X5 adapter has a gross load capacity of 20,000 lbs trailer weight and 4,000 lbs tongue weight when used as a weight-carrying hitch. However, you must not exceed your vehicle manufacturer's recommended towing capacity, which may be lower than these ratings.
Installation involves two steps: (1) Remove the existing ball from your gooseneck hitch, leaving the handle in the unlocked position. Return the ball to the vehicle owner for future gooseneck use. (2) Install the X5 5th wheel adapter plate into the gooseneck cylinder and rotate the double lock handle to lock the unit in place.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. This ongoing inspection helps maintain safe operation and extends the life of the adapter.
Do not exceed your vehicle manufacturer's recommended towing capacity. Although the X5 adapter is rated for 20,000 lbs trailer weight and 4,000 lbs tongue weight, your vehicle's capacity may be lower. Always follow your vehicle manufacturer's specifications.
No. The manual states it will not fit B&W centers 909 and 1256. It is designed for B&W standard center gooseneck hitches only.
No drilling is required.
20,000 lbs trailer weight and 4,000 lbs tongue weight. Do not exceed your vehicle manufacturer's recommended towing capacity.
Remove the existing ball from the gooseneck (leaving the handle unlocked) and install the X5 adapter plate into the gooseneck cylinder. Rotate the double lock handle to lock it in place.
Yes, bed liners and bed mats may affect fit. Verify clearance before finalizing installation.
Periodically check that all fasteners are tight and structural components are sound.
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