Does Trailair Pin Box with 21k Trailer Weight Capacity have Stated Pin Weight Capacity  

The Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 or 1621HD - 18,000 lbs #LC328330 does require capture plates for the Demco Hijacker autoslide that is similar to the Pull Rite Autoslide you have. The measurement from the front of the plate to…

For Trailair Rota-Flex pin boxes that fit as a replacement for a Lippert 1621 we have the 21k part #LC328329 and we have the #LC328330 which it sounds like you have. I can assure they aren't both really rated for 21k and the only difference is a…

Yes, the rubber cushion inside the Trailair Rota-Flex 5th Wheel Pin Box like part #LC328329 is essential to its functionality so if this is out of place or misaligned then that is certainly a cause for concern. That said, this is actually covered…

While we don't have an install video for the exact pin box model you referenced part #LC328329 we do have install videos for similar cushioned pin boxes that fit the same application (Lippert 1621) which would work great as an install guide. I…

Yes, the B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package - Dual Jaw - 25,000 lbs item #BWRVK3705 that fits your 2019 Chevy Silverado 3500 OEM prep package will work with the Curt Rota-Flex 5th Wheel Pin Box item #LC176440. It…

The Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs #LC328329 does not have that rubber compound as a replaceable part option from the manufacturer. I called to confirm that was the case and they said the rubber compound is built…

Great question, Jeff! When the Rota-Flex first came out it renovated what a pin box could do and be, but at this point in time that technology is a little more dated and the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box #325-GH-8040 is the "new…

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

Hey David, from previous customers of ours who have the same 2020 Keystone Raptor 424 we have determined that your pin box style is the Lippert 1621 which means for a Gen-Y gooseneck adapter you'd want the #GY58GR that you referenced.

I spoke with my contact at Trailair and from your serial number we were able to determine that your trailer came with a 1621 HD pin box which is a long pin box style. I was unable to obtain the exact part number for your Trailair pin box but from the…

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

The Gen-Y Hitch 5th Wheel to Gooseneck Pin Box part #GY58GR is primarily designed for long bed trucks. It's no different than a standard fifth wheel pin box in regards to the size. If you were using a fixed hitch and standard pin box before with…