How to Convert Hydraulic Drum Brakes to Electric Over Hydraulic EOH

Question

Question:

I have a trailer with 2 8k ez lube axles not sure of brand with 12 1/4 x 3 3/8 drum brakes. I was wondering if there was a kit to convert the brakes to electric over hydraulic brakes? thank you,

asked by: Justin

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Expert Reply:

In order to convert the hydraulic drum brakes you have on your trailer to electric over hydraulic (EOH) you will need a electric over hydraulic actuator, breakaway kit, brake controller, trailer wiring harness, and trailer coupler. We do have all of these components for you but not in an all inclusive kit.

For the electric over hydraulic actuator, breakaway kit, and trailer wiring I recommend the HydraStar Marine Electric Over Hydraulic Actuator part # HS381-9065. This kit contain the bulk of what you will need to convert your trailer to electric over hydraulic. For the trailer coupler, I recommend using the Demco Channel Tongue Trailer Coupler part # DM13203-95 if you have a straight pull trailer or the Demco 50-Degree A-Frame Trailer Coupler part # DM13205-95 if you have an a-frame trailer. Please keep in mind that you could also just have the coupler welded which would eliminate the need for a new one.

For a brake controller, I recommend the Tekonsha Prodigy P2 Trailer Brake Controller part # 90885 with the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # 3035-P. If you have a factory 4-way then you will also need to use the Ford Replacement OEM Tow Package Wiring Harness part # 118243.

I have attached review videos and a help article for you as well.

expert reply by: Conner L

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Answer 1

The Titan Straight-Tongue Coupler, part #T4853100, is designed for a 2-5/16 inch ball and a 3 inch wide trailer tongue. It has a weight capacity of 21,000 lbs. I spoke with my contact at Titan and he said that the coupler was tested with all five…

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Answer 2

There is no specific torque rating for securing the Titan coupler #T4853100. What you will need to do is tighten the bolts down as much as you can without crushing the metal of the coupler and trailer tongue. If you see the metal start to bend a…

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Answer 3

On the Demco Channel Tongue Trailer Coupler #DM13203-95 the three top row mounting holes' centers are 1-inch from the top flat surface of the coupler. I went to our warehouse and took this measurement to confirm. This and other dimensions are…

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Answer 4

The hole diameters for the Demco Channel Tongue Trailer Coupler item #12564 are 1/2 inch. It is recommended to use grade 8 hardware to attach the coupler to your trailer frame. You can find these bolts at a local hardware store as they do not come…

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Answer 5

Yes, you can use nuts and bolts to install the Titan Coupler part #T4845000 that you referenced. 1/2 inch diameter bolts that are Grade 5 or higher would be what you'd want.

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Answer 6

The Titan Zinc-plated trailer coupler #T4853100 is designed to be mounted using all five bolt holes, and I would strongly recommend doing so. There is not really a way to know what the weight capacity would be, depending on the number and placement…

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Answer 7

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 8

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 9

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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Answer 12

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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