Is Mounting Hole Spacing The Same On T4079200 And T4853100 Trailer Couplers

Question:

I was hoping the video review would indicate the hole spacing for the surge coupler. I am wondering if the hole spacing on T4079200 is the same as on T4853100? I currently have a Titan surge coupler installed on a boat trailer and I am looking to replace it with a standard coupler and electric brake setup. 1995 Four Winns dual axle trailer with surge brake setup on rear axle hopefully soon to be electric.

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Expert Reply:

The mounting hole pattern is different on the # T4853100 coupler versus the pattern on the # T4079200 coupler.

As you can see in the attached photos the bolt pattern is closer together on the side of the # T4079200 coupler than on the # T4853100. You may wind up with some of the mounting holes in the same place but you will need to drill new holes for some if not all of the holes.

I have attached a link to a helpful article that explains what is needed to add electric drum brakes to a trailer you can check out.

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Jeffrey L

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