Selecting 5th-Wheel-to-Gooseneck Adapter for 2020 Heartland Bighorn 39MB With 16k GVWR

Question:

Hey my GVWR for my 5th wheel is 16K. Its a 2020 Heartland Bighorn 39MB. Will the 16K Reese Box work for this or do I need to go with the 20K Reese Goose Box?

asked by: Jake

Expert Reply:

You could technically use the # RP94716-61301 since you won't exceed the rating but you would be better off with the 20k version instead. Manufacturers recommend only using 80-85% of the capacity so there is a safety margin. You also want to double check the sticker or measure the bolt pattern on your pin box to identify it and make sure you get the correct replacement. For example, this Reese Goose Box fits Lippert 0115, 1116, and 1716.

We don't currently have the 20k version since Reese products have been heavily backordered following an acquisition by another company. Instead, I recommend checking out the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box. Based on your GVWR and current pin box you would need one of the following:

-Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1621/1621HD # GY38FR

-Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert 1116/1716 # GY48FR

-Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Fabex/M&M 665 # GY68FR

-Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box - Lippert Rhino # GY33GR

If you aren't sure which pin box you have I can help you identify it if you send me a picture of the sticker. I also added a helpful article below which explains how to measure if the sticker is missing and you don't know which pin box it is.