Will Curt Helux 2025 Forest River Sandpiper 3800RK
Updated 09/12/2025 | Published 05/30/2025
Question:
Will this fit my 2025 Forest River Sandpiper 3800RK ? GVWR 15,500lbs. Has about 2,500lbs pin weight unloaded, so will be a little more when loaded. I think it has the lippert rhino pin box which is really firm and rough.
asked by: Cal
Expert Reply:
Hey Cal! As long as you have the Rhino on there now the # C63RJ is going to fit your 2025 Forest River Sandpiper 3800RK. I don't blame you for wanting to swap it out, many people do and this will be a really nice upgrade. With 2,500 lbs of pin weight dry I fully expect you to reach the 2,570 lb minimum tongue weight with the batteries, propane, and whatever else you load in the trailer so you should be all set.
Do you have any big plans with your new 5th wheel this summer?
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Product Page this Question was Asked From
Curt Helux Shock-Absorbing 5th Wheel Pin Box - Lippert Rhino - 24K GTW - 4,850 lbs TW
- 5th Wheel Pin Box
- Upgraded Pin Box
- Absorbs Road Shock and Reduces Chucking
- 24000 lbs
- Rubber Spring Suspension
- Fixed Turret
- Lippert Rhino
- CURT
more information >
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Robin H.
9/12/2025
Hey Cal! Did the Curt Helux pin box make a difference in the ride of your Forest River Sandpiper? I'd love to hear how it worked out for you, as it could give others confidence when considering a similar upgrade.