Will the Shocker Hitch 5th Wheel to Gooseneck Coupler Kit Fit a Lippert 1621shd Pin Box?
Updated 12/01/2025 | Published 10/31/2025
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Question:
Will this fit Lippert 1621shd and what is the max height from bottom mounting holes to ball
asked by: John L
Expert Reply:
Yes, it will John and thanks for the information! The Shocker Hitch 5th Wheel to Gooseneck Coupler Kit w/ Demco eZ-Latch item # SHK99YR is indeed compatible with a Lippert 1621shd bolt pattern. From the top mounting hole to the coupler you'll need at least 22"of height and a maximum of 25". I attached a diagram below.
You will also need the Safety Chain Kit for Shocker Hitch 5th Wheel to Gooseneck QuickAir Hitch item # SHK35MR. These are required for towing with a gooseneck connection and are not included with the item # SHK99YR.
What specific model is your Heartland Cyclone Toy Hauler?
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Product Page this Question was Asked From
Shocker Hitch 5th Wheel to Gooseneck Adapter w/ eZ-Latch for Lippert 1621, 0719, and Rhino Box - 24K
- 5th Wheel Gooseneck Adapter
- Adapts Trailer
- 5th Wheel Trailer to Gooseneck Hitch
- Provides Extra Clearance
- 24000 lbs
- Replaces Pin Box
- Shock Absorbing
- Lippert 0719
- Lippert 1621
- Lippert Rhino
- Shocker Hitch
more information >
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on 5th Wheel Gooseneck Adapter
Jerred H.
12/1/2025
Hey John, how did the fit with the Shocker Hitch coupler work out on your Lippert 1621shd? Did the height range line up the way you needed? Your update could make it easier for others setting up a similar toy hauler.