Availability Of Dimensions Or CAD Drawing Of Demco Cast Head Coupler DM37ZR

Question

Question:

Is there CAD/stp available for Part Number: DM37ZR

asked by: Steven G

0

Expert Reply:

Hello Steven, thanks for getting in touch. I can provide dimensions for the Demco Cast Head Coupler # DM37ZR but I am sorry to say that we do not have a CAD drawing we can send. If there is a specific dimension you need or question you have I am happy to help. If you need technical drawing, your best bet will be to reach out directly to Demco. They are the only ones who have access to that kind of thing, although not all manufacturers will share with the general public.

expert reply by: Jesse M

0

Steven G.

10/4/2024

I sent Demco an email but can you go ahead and send the dimensions/drawings you have of this coupler?

Jesse M.

10/4/2024

@StevenG We do not have a drawing but if there is a specific dimension you are needing, I should be able to tell you. Here are the dimensions we use most often to determine fitment, let me know if you need something else: Ball size: 2" Weight capacity: 10,000 lbs Overall length: 14" Diameter of lock pin hole: 5/16" Minimum span needed for pin lock: 2-1/2" Distance between bolt holes: 3" on center Distance between jack mounting holes: 3-1/4" Width of inside of back of coupler: 10-3/4"

Kevin H.

5/15/2026

@JesseM What is the distance between the rear of the side flange and the rear side hole? My coupler is currently welded (cracked casting over ball) and I want to replace with a bolt on. The issue is the rails beneath don't go all the way to the coupler, and I don't think I will be able to get a bolt in the front hole. I want to make sure I get at least 2 bolts per side and make up for the front hole by bolting through top to bottom.

Jesse M.

5/19/2026

@KevinH I went to our warehouse and measured on. The distance from the rear of the side flange to the center of the rear side hole is approximately 1-3/4".

Answer 1

The etrailer A-Frame Trailer Coupler w/ Round Jack Hole #CA-5280-RB uses the standard a-frame angle of 50 degrees. The length from the rear of the coupler to where the coupler meets its narrowest point is approximately 9" long. I have include…

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Answer 2

The only differences between the Demco eZ-Latch Couplers #DM37ZR and #DM14793-81 is that the former has integrated loop holes for installing safety chains and a about a 2" drop while the latter doesn't come with provisions for attaching the…

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Answer 3

You would choose a side wind or top wind jack based on several factors. Each has its advantages. If clearance is an issue for the radius of a top wind, then you would choose a side wind. The opposite is also true. It is my experience that a side…

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Answer 4

You are correct. Other than how they are made, the Demco Cast Head Coupler w/ Jack Hole - eZ-Latch - 2" Ball - A-Frame - Bolt-On - 10K #DM37ZR and the #DM14793-81 have the same ratings and will work the same. There is no pro or con to either, so…

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Answer 5

Yes, if you wanted to weld on the Demco coupler part #DM37ZR instead of bolting it on you certainly could. This is powdercoated though so you will need to remove the powdercoating first. For a similar coupler that was designed to be welded on and…

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Answer 6

If you look at the diagram that I received from my contact at Demco, you can see several of the dimensions of the #DM14793-81 trailer coupler. If there were other dimensions you were needing, please let me know.

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Answer 7

The Pro Series Round, Pipe-Mount Swivel Jack w/ Footplate - Sidewind - 10" Lift - 5,000 lbs #PS1401420303 has a 10-1/2 inch dimension from the center of the mount but is only 6-1/2 inches from the center of the mount to the top of the unit. This…

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Answer 8

The standard angle for an A-frame trailer tongue is 50 degrees. More than likely your trailer follows the standard. Since you are unsure, you could measure it using a tool like a protractor. The Demco Cast Head Coupler #DM37ZR you looked at fits the…

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Answer 9

I visited our warehouse and took measurements of both of these jack mounts to confirm their compatibility. Yes, both the 2000-lb-rated Bulldog Jack #BD158109 and the 5000-lb-rated Pro Series Jack #PS1401420303 use the same round 2-inch weld-on pipe…

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Answer 10

Hello Stephen, I am always looking for a good excuse to stretch my legs (thank you), so I went out and got the measurement you requested, from the top of the bolt hole, to the bottle of the rail on the #DM37ZR is 1 9/16". I attached an image of…

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Answer 11

Yes, the 5 on 4-1/2" bolt pattern in regards to trailer wheels is much more common therefore the selection of wheels will be much greater. The 5 on 5" bolt pattern has a slightly higher capacity but only marginally. I recommend the Dexstar…

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Answer 12

The 5 on 5 or 5 on 4-1/2 you're seeing on wheels is the bolt pattern. The first number is the amount of bolt holes and the second number indicates the spacing. When you have an even number of holes you can just measure from the center of one bolt…

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Availability Of Dimensions Or CAD Drawing Of Demco Cast Head Coupler DM37ZR

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