Parts Needed for Converting Trailer to EOH Disc Brake Operation

Updated 06/10/2024 | Published 02/24/2018

Products Featured in This Question

Dexter Disc Brake Assembly - 12-1/4" Hub/Rotor - 8 on 6-1/2 - E-Coat - 8K - Nev-R-Lube

$1335.13

Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers

(810)

$18.24

Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional

(2763)

$159.97

Hydrastar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi

(230)

$872.08

Kodiak Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Dacromet - 7,200-lb Dexter Axle

(2)

$658.05

Question:

I planning on upgrading my trailer brakes to electric over hydraulic so could help with identifying what parts i will need.I have a Dexter axle serial # 113289307 stamped on it , I dont know if its a 7K or 8K axle. I know i will need a Dexter 1600 psi actuator but not sure about Dexter brakes or Kodiak. The axles do have never lube bearings. I will be using a 2016 Chevy to pull my rv. Thanks.

asked by: Kenny

Expert Reply:

To convert a trailer with hydraulic disc brakes to electric-over-hydraulic (EOH) actuator operation you will need to either replace or immobilize the existing surge coupler so it no longer compresses. A bolt installed horizontally through the coupler will immobilize it.

Then you will need an EOH actuator with the required 1600-psi pressure that can operate your disc brake calipers. I suggest the HydraStar # HBA16. You do not need to replace your brake lines or breakaway kit but you will need a electronic trailer brake controller that is compatible with EOH actuators. Not all controllers will work with EOH systems but the Prodigy P2 # 90885 will work fine with both electric drum brakes and EOH disc brake setups. In your 2016 Chevy pickup you will install the controller using harness # 3016 to plug in the Prodigy.

If you already have disc brakes on the trailer then the actuator and brake controller are all you need. If you are replacing drum brakes with the EOH disc brakes then you will also need disc brake assemblies.

I checked with my contact at Dexter Axle and they advised your axle is rated for 7200-lbs. The linked page displays all 7200-lb-rated Kodiak disc brake kits such as raw-finish kit # K2HR729D.

expert reply by: Adam R

Gary S.

6/10/2024

Hello Adam....I have installed Deemaxx hubs/rotors/calipers and g1600 Deemaxx actuator. I'm having trouble figuring out the wiring to my 2019 Keystone Montana. Can you show me how to wire my 4 wire g1600 deemaxx actuator into my 5th wheel? I want to only use my coach battery. Can you please show me....please ....I am completely puzzled.... Thank You....????????????

Bud M.

6/10/2024

@GaryS While I'm not Adam, I think I can help you out. The DeeMaxx Alpha G1600 Electric Over Hydraulic Actuator # DE47SR only has a 4 wire connection. The black wire will connect to the positive 12 volt on your coach battery while the white wire connects to the negative on the coach battery. The yellow wire will tie into the output for the breakaway switch and the blue wire will connect to the brake wire you had which powered the electric trailer brakes. I wish I could tell you exactly what color the wires were on your 2019 Keystone Montana but I do not have access to their build sheets and find they often do not always use the correct color wires at all times anyways. So you simply want to check for function.