In order to determine which air ride pin box like the Trailair Air Ride 5th Wheel Pin Box # LC179879 will fit your 2018 Cyclone 4200 Toy Hauler, you will need to find out which pin box you current have first.
To do this, you can first try and look for a product sticker on your current pin box that will have the pin box type on it. For instance # LC179879 is designed to replace Lippert 0719 pin boxes.
Or
If you're unable to find a sticker with this information on your pin box, you can... view full answer...
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