Why is Reese Sidewinder Pin Box Not Compatible with Curt Q Series Hitch?

Question:

The product review on this item states that it is not compatible with the Curt Q series hitches. Why is that? Is there another similar product that is?

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Expert Reply:

The rotating pin boxes like the Sidewinder Fifth Wheel King Pin with Rotating Turret by 5th Airborne, 16K # ST400-SW16K are not compatible with the Curt Q series hitches because of the hitch head design that had a unique spherical axial bearing. That system allowed too much movement for any of the rotating pin boxes to be compatible.

If you already have a Q series hitch, I recommend simply changing the head of the hitch with the Curt A series 16K # C16520 or 20K # C16540. Either hitch is compatible with the legs of your current hitch and has an updated head articulation design. Then I recommend the Sidewinder Wedge for Curt A Series 5th Wheel Trailer Hitches # C16992 for a custom fit.

If you have the discontinued Q16 that one Q-series hitch is compatible with a Sidewinder as is. The Q20, Q24, and Q25 are not compatible and would need the head replaced to be compatible with a rotating pin box.

expert reply by:
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Jason S

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