Which Replacement Trailair Pin Box for 2008 Keystone Challenge 35 5th Wheel

Question

Question:

I have a 2008 Keystone Challenge 35. Which air pin box would you suggest? Thanks

asked by: Pat D

1

Helpful Expert Reply:

In order to recommend the correct Trailair replacement pin box for your Keystone Challenge 5th wheel, I will need to know the manufacturer and model number of your OE pin box. This information should be listed on a plate or sticker affixed to the pin box. If you would care to reply with this information, I would be happy to make a recommendation.

If you cannot find a model number or manufacturer, you can take some measurements of your OE pin box as shown in the FAQ article I have linked you to. With these measurements, we can most likely determine which pin box you have.

expert reply by: Mike L

1

Pat D.

4/17/2013

Hi MikeMy trailer has a Lippert 1621 box pin.Thanks Pat

Patrick B.

4/24/2013

With the Lippert 1621 you can use the 5th Airborne with a 21K capacity, part 5AB-E1621-610. The other options are the Trailair Tri-Glide,UF35-946229, the Trailair Air Ride, UF35-946203, and the Rota-Flex, UF35-946202. These options do not have the Sidewinder turret for moving the turn point further back for short beds. Of the 4 options, I do not like the Rota-Flex. I prefer the adjustability of the air systems on the others. Although some prefer this since they do not have to worry about air pressure. If 18K is not enough weight capacity, then you can throw it out the RotaFlex and the Tri-glide. The big difference between the Trailair Air Ride and the Airborne is the location of the suspension parts. Everything is easier to access on the Trailair, but that means that your air fitting, shock and air bag are exposed. Price on those two is pretty comparable, the question is do you prefer easier access or more protection for the suspension.

Answer 1

I checked with Andersen and they do state that their Ultimate 5th Wheel Connection can be used with the Trailair Rota-Flex 5th Wheel Pin Box like the part #LC328330 that you mentioned. As you referenced, you will just want to use the Rota-Flex…

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Answer 2

The Andersen Ultimate Connection 5th Wheel Trailer Hitch System #AM3200 should only be used with fixed pin boxes. Since the Curt Air Ride #LC158778 moves from the air ride it should not be used.

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Answer 3

Yes, the Andersen Ultimate hitch you have is compatible with the Curt Trailair pin box part #LC158778 that you referenced.

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Answer 4

Hello again Joel; I would recommend the Curt Air Ride 5th Wheel Pin Box #LC158778 over the Flex Air #LC369535. The pivoting head from the Flex Air causes too much movement so it actually isn't compatible with the Andersen hitch. Since the Air…

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Answer 5

The Trailair Flex Air #LC328492 is the correct replacement for your Lippert 1621 and we've confirmed will work with the Andersen Ultimate. The Flex Air is going to be the best option to smooth out your ride.

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Answer 6

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

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.…

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Answer 9

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 12

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Which Replacement Trailair Pin Box for 2008 Keystone Challenge 35 5th Wheel

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