Best Two-Sided Adapter · 1 of 6
Trailer Hitch Sway Control Adapter

- Two-sided sway adapter plate
- Class III and IV 2 inch mounts
- Thickened steel construction
Our take
Best for a friction bar system where you want the flexibility of either side.
Why it made the shortlist
The JIANBENKJ is a two-sided sway control adapter plate for the ball mount, upgraded from a one-sided design. The listing says it fits Class III and Class IV 2 inch square ball mounts and is made of thickened steel.
Against the single-sided JIANBENKJ 26003 below, it gives you a mounting point on both sides, so the bar can go on whichever side suits your trailer. It costs a little more than the single-sided plates.
What works
- Mounts on either side of the ball mount
- Fits standard 2 inch square ball mounts
- No welding needed
- Steel built to take towing friction
Watch out for
- Friction bar is not included
- Fit is limited to Class III and IV mounts






