Does Trailair Flex Air Have Longer Jaw Than Short Pin Box

Question

Question:

does the fifth wheel sit farther back of the cab than a short jaw?

asked by: ELDON L

0

Expert Reply:

The Trailair Flex Air 5th Wheel Pin Box # LC328492 that you referenced would not have a shorter or longer distance from the mounting holes to the king pin than the pin box it's designed to replace. This is considered a long pin box which would be about 6 inches further out than a short pin box.

expert reply by: Jameson C

0

Answer 1

The main difference between the Curt A-Series part #C24FR and Q-Series part #C97FR is the head and jaw design. The A-Series has dual interlocking jaws which form a much tighter grip on the kingpin than just a standard set that butt up at the end like…

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Answer 2

I called my contact at Lippert and asked about the Trailair Flex Air 5th Wheel Pin Box, part #LC328492. My contact at Lippert said that if you match the same mounting bolt pattern you have on your existing 1621 pin box, the king pin height on the…

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Answer 3

Since trailer manufacturers do not make information like pin box models readily available to the public, you will need to contact the dealership with the serial number and they should be able to tell you what pin box is on it. Otherwise, the only…

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Answer 4

I have spoken with my contact at Lippert before for the dimension you need for the #LC328492 that you referenced and the overall height from the top of the mounting bracket to the bottom of the king pin is 19-9/16 inches. You would need to compare…

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Answer 5

The Trailair Air Ride 5th Wheel Pin Box #LC328492 that you referenced, which is confirmed to work with the Lippert 1621 pin box on your trailer, features a distance of 21-1/2 inches from the center of the front row of bolts to the center of the king…

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Answer 6

The options you have are as follows; lower the tow vehicle, raise the trailer, or tow nose high. The best option would be to lower the truck a few inches so you can tow the trailer level without raising it more. However, this is going to be the most…

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Answer 7

The Trailair Flex Air 5th Wheel Pin Box - Lippert 1621 - 18,000lbs Item #LC328492 only has a fitment listing of 1621 but will also fit the 1621HD so it is the correct Flex Air replacement for your current pin box.

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Answer 8

Yes, if you check out the picture I attached that shows the shock of the Flex Air part #LC328492 all the way maxed out you can see that there's easily 2 inches or more between the arrows where the shock needs to be when at correct pressure and…

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Answer 9

Yes, the Trailair Flex Air 5th Wheel Pin Box #LC328492 will fit as a replacement for your Lippert 1621HD pin box. The dimensions of this will be slightly different. The king pin will stick out an additional 3.39 inches and will sit lower (causing the…

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Answer 10

I contacted the Tech Rep at Lippert to verify, yes, the 0719 and 1621 pin boxes are interchangeable. The 1621 pin boxes are approximately 8-3/4" longer than a 0719, bolt patterns matches. You can replace your current 0719 pin box with the…

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Answer 11

I reached out to my contact at Lippert who was able to give me a spec sheet for the Trailair Flex Air #LC328492. If you check out the picture I attached you can see that from the back of the pin box it measures 19-9/16" down and 29-9/16"…

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Answer 12

I spoke with my contact at Lippert and although she wasn't able to provide me with the center of the king pin to first hole measurement, I do have the back of the mounting plate to center of the king pin measurement for you for the #LC328492.…

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Does Trailair Flex Air Have Longer Jaw Than Short Pin Box

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