How Can I Determine The Correct Replacement Pin Box

Updated 05/13/2025 | Published 04/02/2025

Question:

How can i tell if this will replace my pin box

asked by: Gary E

Expert Reply:

Hello Gary, thanks for reaching out. We would just need to look at what pin box is currently on your camper. The Shocker Hitch Quick Air Cushioned 5th-Wheel-to-Gooseneck Pin Box # SHK47YR replaces the Lippert or Curt Turning Point 5th-wheel pin boxes. So if that is what you have now, the # SHK47YR will be correct.

If you have a different pin box just let me know. The pin box size/type may be shown on the sticker. Or if you can tell me the brand/model number/serial number of you pin box I may be able to look it up that way. Or you can use the measuring guide I linked below to determine your pin box size.

I hope this helps. Feel free to leave a reply and let me know if I can do anything else to help.

expert reply by: Jesse M

Joey

5/13/2025

I have a curt Rota flex on my RV what would be the best box to go with that y’all have please? I believe it’s the SHK47YR I just wanna be sure can you help please

Jesse M.

5/13/2025

@Joey The Shocker Hitch # SHK47YR replaces the Lippert Turning Point pin box. The Rota Flex is a different pin box that comes in multiple different sizes, so we will need to determine which one you have. For example, the Shocker Hitch # SHK79YR replaces the Lippert 1621 bolt pattern. There should be a sticker on your pin box that shows the model number and serial number. The bolt pattern is typically not printed on the sticker so if you have the manufacturer run the serial number they should be able to tell you. If no sticker is present you can use the measuring guide in the link below to determine your pin box size.