Mounting Bolt Hole Dimensions for 21K Demco Trailer Coupler

Question

Question:

What is the mounting bolt pattern for this coupler?

asked by: Grant

0

Expert Reply:

The mounting bolt pattern for the Demco Trailer Coupler # DM79FR measures 4-1/2" from the center of one bolt hole to the center of the next bolt hole.

Attached is a photo of the dimensions and a review video for you to check out.

expert reply by: Jon G

0

Mounting Bolt Pattern for 21K Demco Trailer Coupler DM79FR
(click to enlarge)

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 7

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Answer 8

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Answer 9

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Answer 10

I would use a protractor, see photo, place the protractor on the edge of the inside of one side of the trailer frame and the other inside edge of the trailer frame should be parallel with the 50 degree line on the protractor. Another way to verify…

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Answer 11

The only differences between the Demco Trailer Coupler #DM14976-52 and #DM88XR are the colors and the mounting bracket design. The part DM14976-52 is silver and has a straight, or no-drop, design with the bottom of the coupler being towards the top…

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Answer 12

Yes, the B and W Companion Slider Hitch part #BWRVK3370 does fit the OEM prep kit of a 2021 Ford F-250 Super Duty. Newer trucks do sit up higher but so do the newer fifth wheel trailers to compensate for that so as long as the truck doesn't have…

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Mounting Bolt Hole Dimensions for 21K Demco Trailer Coupler

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