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Recommended Capture Plates for Trailair Rota-Flex Pin Box with Demco Hijacker Autoslide


Do I need a Locking Plate for this pin box when connecting to Autoslide?


Helpful Expert Reply:

It looks like you might have a Trailair Roto-Flex 5th Wheel Pin Box like # LC328330. I do recommend confirming this by locating the model name of your existing pin box.

If this is the case, then to use the Demco Hijacker Autoslide 5th Wheel Trailer Hitch # DM8550034 referenced in your question, you will just need to add the Demco Hijacker Capture Plates # DM6171. These capture plates are designed specifically for the Trailair Rota-Flex pin boxes and will prevent the king pin from pivoting inside your Demco Hijacker.

I have included the installation instructions that you can also take a look at.

click to enlarge
helpful expert reply by:
Chris R

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Follow up Questions


I have a Demo hijacker 13k auto slide fitted on a 5.5ft short bed, would this king pin be a compatible replacement?

Etrailer Expert
Reply from Chris R.

Yep, as long as you add the Capture Plates # DM6171 you're 13K Hijacker will be perfectly compatible with the Rota-Flex Pin Box # LC328330 .

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