My Shopping Cart

  • (Your cart is empty)

star Add just $99.00 worth of merchandise to receive FREE UPS GROUND shipping!*


My Vehicle

Choose Your Vehicle

Hitch Search

Trailer Hitches

Hitch Accessories

Electrical Wiring

Cargo Management

Vehicle Accessories

Trailer Accessories

Learning Center

Fifth Wheel to Gooseneck Adapter With 7-1/2" Offset

Convert-A-Ball (Part Number:C5GX1216)

Your Price: $581.99
List Price: $746.95
You Save: 22% ($164.96)
Availability: In Stock!
Add To Cart

This item is eligible for free shipping. Click for more details

Shipping: Calculate Shipping Cost


This coupler adapter is used to convert a trailer's kingpin to connect to a gooseneck hitch. The sliding collar with set screws allows it to be adjusted to any height between 12" and 16". The 7-1/2" offset increases turning clearance between tow vehicle and trailer, great for short beds!

  • Per the manufacturer, this product should not be used with a Reese or Draw-Tite branded “Pop-In” gooseneck ball with a plastic release lever. Wear imposed by the coupler may cause the ball release lever to bind.
    When using this product in a truck equipped with a factory installed fifth wheel/gooseneck towing system, the supplied safety chains will need to be lengthened and the hooks replaced in order to connect to the in-bed attachment points.
  • Not recommended for trucks with beds shorter than 6 feet or cushioned style king pin boxes.


FitsKing Pin box of trailer
Length12 to 16 inches
GTW20,000 lbs
Vertical Load4,000 lbs
Installation InstructionsCLICK HERE
Made In:USA


  • No drilling or welding required
  • Fail safe king pin adapter
  • Interior cushions act as a buffer that reduces vibration/chucking


  • Hardware & collar

Not Included:


Convert-A-Ball has been in business for 85 years and is the innovator of the original Interchangeable Hitch Ball System. As the orignal designer of both Cushioned Ball Mounts and cushioned Fifth Wheel to Gooseneck Adapters, they have filled a niche in the towing industry.

The above information has been provided by the Manufacturer, and we cannot guarantee the accuracy thereof or endorse the opinions expressed.

Why Shop With Us?

We're the Towing Experts

Lifetime Guarantee

98% Of All Orders Ship Within 24 Hours!

Easy Returns

Call toll-free 1-877-507-0714 for expert advice on everything we offer.

Customer Service

M - F: 8am to 5pm (CST)