What Install Hardware is Required to Install Demco Hydraulic Trailer Brake Actuator DM72VR

Question

Question:

Hi, I just purchased a surge brake tongue and apparently I need to buy the bolts to mount it to the trailer. Can you tell me which ones I need? Thanks,

asked by: Justin

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Expert Reply:

We don't carry the needed hardware to install the Demco part # DM72VR that you ordered but I can tell you that you will need 1/2" x 4-1/2" Grade-5 or higher.

I attached an install video for this coupler for you to check out as well.

expert reply by: Jameson C

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Answer 1

You can certainly go ahead and re use the existing 2 bolts, provided they are in good condition. The fish wire method shown in the video works too, but it is also very common to just use the two bolts like your old Atwood actuator. Personally I would…

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Answer 2

The Demco Hydraulic Brake Actuator DM8608601 you were looking at requires 1/2" x 4-1/2" Grade 5 Bolts to mount it to the tongue of your trailer. The DM8608601 was actually discontinued recently so I recommend going with the Demco Hydraulic…

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Answer 3

Since Atwood went out of business none of their actuator (or other product) replacement parts are available unfortunately, so your only real option to having a working actuator is to replace the entire unit. I am attaching a link to our selection of…

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Answer 4

Instead of using the Demco Hydraulic Brake Actuator #DM72VR I recommend using the Dexter DX7.5L A-60 Brake Actuator #DX33FR. I went out to our warehouse and confirmed this coupler has a 3-7/16" max width which looks to be exactly what you need…

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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

The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…

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Answer 7

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 9

Hey Robert, yes the Kodiak disc brake calipers part #KDBC225DAC that you referenced will replace the Tie Down calipers you have now 46304, they can be used as a left or right hand caliper and does come with ceramic brake pads. If you ever needed…

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Answer 10

For as trashed as those brake assemblies are I am impressed with how spotless that spindle is! Based on the bearing numbers you mentioned you have a #84 spindle and the hub part #AKHD-545-35-G-K is correct. Since this its galvanized it's a really…

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Answer 11

Unfortunately the Atwood 85736 cannot be replaced so you'd actually need an entirely new actuator. The closest replacement we have is the Demco Hydraulic Brake Actuator #DM72VR. This actuator has a gross towing weight capacity of 7,000-lbs, a…

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Answer 12

Hey George! I do have brakes made specifically for your Demco KK260 Kar Kaddy! Demco Hydraulic Drum Brake - Single Servo - Galvanized - 10" - LH - Self-Adjusting - 3,500 lbs #DMSB24429M and Demco Hydraulic Drum Brake - Single Servo - Galvanized…

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What Install Hardware is Required to Install Demco Hydraulic Trailer Brake Actuator DM72VR

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