Adding Electric Over Hydraulic Drum Brakes to a Trailer
Updated 02/06/2018 | Published 02/05/2018
Products Featured in This Question
Question:
Thanks for your response, My tow vehicle is a 2011 Chevy 3500hd 4wd ,dual wheels.It has a factory brake actuator and 7 flat plug. I don't know if the P2 unit would plug into those wires or not?
asked by: Duff P
Expert Reply:
With 6,000 pound axles they must take 12 x 2 inch assemblies. For a left and right side pair of assemblies you can use # AKFBBRK-7. We do not have an option for self-adjusting brakes in this size with a single-servo design.
For an actuator I recommend the Hydrastar # HS381-9066. This unit is rated to 1,200 psi so it provides a little extra kick above the 1,000 psi units. Since you have a couple of 6,000 pound axles you're going to want the best to slow the loaded trailer down. It also includes the breakaway system and wiring to add a 7-Way connector to the trailer. If the trailer already has a 7-Way and breakaway system then use # HS381-8066 for just the actuator.
Your tow vehicle will also need to have a brake controller that is compatible with electric over hydraulic brakes. There are not all that many that are compatible so you can't use just any controller. I recommend the P2 # 90885 because it is easy to set up and use and it is reliable.
If you can tell me the year, make, and model of the tow vehicle I can make some additional recommendations for adding a 7-Way connector to the tow vehicle. I have also included a link to our help article that explains everything needed to add electric over hydraulic drum brakes to a trailer.
Product Page this Question was Asked From
etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K
- Trailer Brakes
- Hydraulic Drum Brakes
- Standard Grade
- Free Backing
- Manual Adjust
- Single Servo
- 12 x 2 Inch Drum
- 5200 lbs Axle
- 6000 lbs Axle
- 7000 lbs Axle
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Hydrastar Vented Marine Electric Over Hydraulic Actuator for Drum Brakes - 1,200 psi
- Video: A Look at the Terran Industries Electric Trailer Brakes
- Q&A: Recommended Comfort Ride Suspension and Disc Brake System for a Triple Axle Trailer w/ 7k Axles
- Q&A: Help Understanding and Achieving the 21K Weight Capacity of Demco Trailer Coupler # DM14040-81
- Video: Review of MAXXIS Trailer Tires and Wheels - ST205/75R15 Radial Black Modular Steel - MXS39FR
- Video: The Low-Down on the Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers
- Video: Checking Out the Loadstar ST235/75R15 Radial Off-Road Tire w/ 15" Black Spoke Wheel
- Video: Review of Terran Industries Trailer Brakes - Left And Right Hand Self Adjusting Electric - TX97ZJ
- Video: Demco Trailer Coupler: The Breakdown
- Shop: etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K
- Shop: Maxxis ST205/75R15 Radial Tire w/ 15" Black Modular Wheel - 5 on 4-1/2 - LR D - Bead Balanced
- Shop: InfiniteRule Lock for Cast Demco eZ-Latch Trailer Couplers - 2" and 2-5/16"
- Shop: Demco Trailer Coupler - Adjustable Channel Mount - eZ-Latch - Black - 2" Ball - 10,000 lbs
- Shop: Hydrastar Electric Over Hydraulic Actuator for Drum Brakes - 1,200 psi
- Shop: Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers - 9/16" Studs - 8 on 6-1/2 - 7K
- Search Results: hba10
- Video: HydraStar Marine Electric Over Hydraulic Actuator Installation
- Search Results: brake controllers
- Shop: Brake Controller
- Article: Parts Required to Add Electric Over Hydraulic Drum Brakes to a Trailer
- Q&A: Converting Surge Brakes So Brakes Function Backing Down Boat Ramps
- Q&A: Parts Needed To Convert Surge Brake Triple Axle Trailer To Electric Over Hydraulic
- Q&A: Recommended Trailer Breakaway Kit and Hub/Drums and Hydraulic Brakes for Trailer with Dexter Axle
- Q&A: Can HydraStar Actuator be Submerged Into Water on Boat Trailer
- Q&A: Recommended Electric Over Hydraulic Actuator For Triple Axle Boat Trailer
- Shop: Trailer Hitch
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer wiring
on Trailer Brakes
Duff
2/5/2018
Thanks for your response, My tow vehicle is a 2011 Chevy 3500hd 4wd ,dual wheels.It has a factory brake actuator and 7 flat plug. I don't know if the P2 unit would plug into those wires or not?