Replacement Pin Box for 2021 Forest River Sandpiper with Trailair Flex Air 5th Wheel Pin Box

Updated 06/04/2021 | Published 06/03/2021

Products Featured in This Question

Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs

(189)

$1676.50

Curt Flex Air 5th Wheel Pin Box - Lippert Rhino - 21,000 lbs

(189)

$2053.64

Trailair Air Ride 5th Wheel King Pin - Leland 7920 - 21,000 lbs

(83)

$1617.47

Question:

I have a 2021 Forest River Sandpiper, model 3660MB and would like to know which Lippert 21k Flex Air pin box will fit.

asked by: Tom K

Expert Reply:

We need to first determine what type of pin box you currently have on your Sandpiper 5th Wheel Trailer, you will need to locate the part number of the pin box. This number is usually located somewhere on the pin box itself, either on a sticker or stamped into the king pin. If you are unable to find this information, you can also contact the trailer manufacturer with your VIN and they should be able to provide you with this.

The Trailair Flex Air 5th Wheel Pin Box, # LC369535 is a replacement for the Lippert 1621 - 21,000 lbs. pin box.

The Trailair Air Ride 5th Wheel Pin Box, # LC158777 is a replacement for the Lippert 1716.

The Trailair Flex Air 5th Wheel Pin Box, # LC65VR is a replacement for the Lippert Rhino - 21,000 lbs.

expert reply by: Michael R