Cushioned Pin Box Recommendation for 2026 Forest River 33RLP Sabre

Published 10/14/2026

Products Featured in This Question

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

(203)

$1829.15

Curt Helux Shock-Absorbing 5th Wheel Pin Box - Lippert Rhino - 18K GTW - 3,500 lbs TW

(28)

$1575.95

Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621/1621HD - 30K - 4.5K TW

(106)

$1199.95

Question:

Hello, looking at curt Helux spring pin box wanted to make sure I got it right as far as weight of pin box needed I got Dry weight of 12,515 GVWR14,695 which to the math it comes up to 3,232 which falls in the range of C75MJ if I am correct also just note this 2026 Forest River 33RLP Sabre is sitting on a Norco Bal Frame with factory pin box of SPB72-1621HD Any help would be great. Thanks Brian

asked by: Brian S

Expert Reply:

Hey Brian, we have cushioned pin boxes that fit your 2026 Forest River 33RLP Sabre but since you have a 1621 style pin box there isn't a Helux that will fit. The Helux only fits the Rhino pin box which is a different bolt pattern. So instead Curt has the Flex Air part # LC369535 which is an air spring style cushioning.

If you are wanting a non-air spring style pin box though we have the Gen-Y part # GY68GR which is also a really great option. It also fits with your pin weight as well.

What was it about the Helux that interested you?

expert reply by: Jameson C