Outer Diameter of Mounting Flange of Ventline Vanair Trailer Roof Vent # VP-543SP

Question

Question:

Hi, Im interested in this part, but concerned about the space required for mounting to the roof. My room has ribs and limits the flat mounting space. What is the outer diameter of the black mounting flange that bolts to the roof?

asked by: Jeff L

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Expert Reply:

The Vanair Trailer Roof Vent, part # VP-543SP fits a 6-1/4 inch rough opening. The mounting flange you asked about measures right at 8-5/8 inches in diameter.

expert reply by: Mike L

0

Answer 1

I went out and measured the outside to outside points on the flange for the MaxxAir MaxxFan, part #MA00-04401M, and it's 16-1/4 square. It does fit the standard 14 x 14 vent opening which is what you'll find on most trailers and it's for…

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Answer 2

The difference between the MaxxAir MaxxFan Mini Roof Vent #MA00-04401M and the MaxxFan Roof Vent #MA00A04401K does indeed simply have to do with its profile. The MaxxAir Mini Roof Vent will only extend 2-7/8 inches above the roof when it's closed…

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Answer 3

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 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

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 6

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 7

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 8

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 9

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 11

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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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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Outer Diameter of Mounting Flange of Ventline Vanair Trailer Roof Vent # VP-543SP

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