Can Trailair Flex Air # LC328492 Replace Lippert 1621HD Pin Box on a 2017 Jayco Seismic Wave 355W

Question

Question:

Do I need the long or medium since I have the Demco 21,000 lb auto slider ?

asked by: MICHAEL S

0

Expert Reply:

You are on the right track of choosing an upgrade for the Lippert pin box on your 2017 Jayco Seismic Wave 355W. Since the pin box is a 1621HD instead of a regular 1621 you need to go with a different pin box as the Curt Flex Air # LC328492 is only compatible as a 1621 replacement.

If you like the Curt line then you can use the Curt Air Ride # LC158778. This is rated for 21,000 lbs and the only difference between this and the Flex Air is that the Flex Air has a pivoting head which further helps do reduce chucking. The Air Ride still uses the scissor motion, air bag, and built-in shock that does a great job of increasing your ride quality.

This pin box is actually better if you are already using an autosliding hitch as that pivoting head causes the Flex Air to be incompatible with our Demco Autosliding 5th Wheel Hitches like parts # DM8550034 and # DM8550035.

expert reply by: Jon G

0

Michael S.

11/1/2018

Do I need the long or medium since I have the Demco 21,000 lb auto slider ?

Reply

Jon G.

11/1/2018

The Lippert 1621HD # LC1191151 measures 17-3/4" from the front row of bolt holes to the center of the king pin. Since the Trailair Air Ride # LC158778 measures 19-1/2" for that same distance you won't need to look for a different length pin box if your current setup provides you with enough cab clearance.

Reply

Answer 1

When it comes to a replacement or an upgrade pin box you'll need to determine the pin box that you currently have. You will need to find the pin box's manufacturer name along with the pin box number which is typically located on a sticker on…

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Answer 2

By 'drawing', I'm assuming you're needing the bolt hole spacing, is that correct? Lippert won't provide a build sheet, because that's considered proprietary information, but I've provided a diagram showing the bolt hole…

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Answer 3

Installation of a replacement pin box like the Lippert 1621 5th Wheel Pin Box - 18,000 lbs #LC1191151 does not raise the overall height of a 5th wheel trailer, but it may give more adjustability to the height of the king pin. I've attached an…

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Answer 4

I have included some images with the dimensions of both the Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box #GY58GR and a 1621 Pin Box #LC1191151. Hopefully these images with measurements will help you find the measurement you are looking…

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Answer 5

The Lippert 5th Wheel Pin Box #LC1191201 referenced in your question is a direct replacement for a factory Lippert model 1716 pin box. Different pin box models have varying mounting hole dimensions so when looking for a replacement you first need to…

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Answer 6

The best option we have for your situation where the brackets of your pin box mounting are damaged is going to be with the Lippert 1621 5th Wheel Pin Box #LC1191191 which you can weld to the frame you have currently that you are reinforcing.

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Answer 7

The Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box #GY68GR weighs 155 lbs. The Gen-Y Hitch Shock Absorbing 5th Wheel to Gooseneck Pin Box #GY38FR weighs 162 lbs. Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter #RP85FR weighs 195 lbs.…

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Answer 8

If you're talking about where to install the base rails for the Curt A20 5th Wheel Trailer Hitch w/ R20 Slider - Dual Jaw - 20,000lbs #C16541 you'll want to refer to the instructions included with your base rails. If you have the #C16441-204…

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Answer 9

The B and W Fifth Wheel hitches for your 2020 Chevy Silverado 3500 with OEM prep package like part # BWRVK3710 for the 20K or part #BWRVK3715 for the 25K are height adjustable so if you can lower the hitch and still be level, I recommend to try that…

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Answer 10

The manufacturer part number for the Gen-Y Hitch Shock Absorbing 5th Wheel Pin Box - Lippert 1621/1621HD - 30K - 4.5K TW #GY68GR is GH-8050. This shock-absorbing pin box provides a smooth, safe ride while you tow your fifth-wheel trailer. The…

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Answer 11

When adjusting the height of a pin box such as #LC1191191 it is important to support the pin box when removing the bolts. I recommend 2 or 3 buddies to give you a hand and make sure no one is beneath the pin box while raising or lowering it. With the…

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Answer 12

I would be happy to help you find a 5th wheel hitch for your 2022 Ford F-450 Super Duty. I recommend the B&W Companion item #BWRVK3305. The Companion works with the factory-installed 5th-wheel towing prep package from Ford. You will be able to…

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Can Trailair Flex Air # LC328492 Replace Lippert 1621HD Pin Box on a 2017 Jayco Seismic Wave 355W

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