Upgrading Pin Box to the Curt Trailair Rota-Flex 5th Wheel Pin Box

Question

Question:

LCI Item Number:3478422 I have this pin box and would like to upgrade it to a bandw rotaflex can you guide me in the right direction

asked by: Juan C

0

Pin box sticker
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Expert Reply:

Appreciate you reaching out Juan!

Lippert confirmed that your LCI number is a 1621 pin box. Rota-Flex 5th Wheel Pin Box # LC328330 is going to be a direct replacement and bolts right on.

The Rota-Flex pin box is highly rated because it has a pivoting head with a built-in rubber compound. It works to reduce chucking and absorb road shock, resulting in a smoother ride and less wear and tear on your trailer.

Are you usually traveling on short trips or long distances?

expert reply by: James D

0

Juan C.

5/1/2026

James, Thank you for the response, I have recently changed my mind and went ahead and purchased the Reese 5th airborne i actually already purchased it. Did not come with mounting hardware. Do you guys sell the hardware? Also could you verify fitment please

James D.

5/1/2026

@JuanC anytime, just reach out when you have questions! Nice choice on the pin box, in most cases the pin box does not include mounting hardware, as they are designed to reuse the existing bolts from your current pin box, but this can vary depending on how the unit was packaged or sold. Your pin box is a Lippert 1621, to confirm that the Reese Airborne is correct, I've attached an article that walks you through how to measure your pin box. You'll use 5/8" diameter Grade 8 bolts that are about 2" long, along with matching lock nuts and flat washers. Most setups use 8–12 bolts total, depending on the pin box and frame.

Helpful Links

faq-measuring-a-fifth-wheel-pin-box.aspx

Answer 1

I wish we could help but that's not a Reese part number we are able to get at this time.

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Answer 2

Hey Donald, thanks for reaching out! I recommend using the MORryde Cushioned Pin Box #MR84VR over the Curt Rota-Flex #LC328330 any day because it has better cushioning technology. Back in the day when the Rota-Flex was first released it was…

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Answer 3

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…

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Answer 4

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 5

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 6

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 7

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 8

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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Answer 9

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 10

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 11

Appreciate you reaching out Juan! Lippert confirmed that your LCI number is a 1621 pin box. Rota-Flex 5th Wheel Pin Box #LC328330 is going to be a direct replacement and bolts right on. The Rota-Flex pin box is highly rated because it has a pivoting…

view full answer...

Answer 12

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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Upgrading Pin Box to the Curt Trailair Rota-Flex 5th Wheel Pin Box

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