Recommended Parts for Adding Electric-Over-Hydraulic Disc Brakes on a Tandem Axle Pontoon Trailer
Products Featured in This Question
Question:
I want to add brakes to my tandem axle pontoon boat trailer. The trailer axles are made by Meher Part Number HA221483G rated to 3,750lbs. The mounting plates are 4-hole with 2-3/4 hole spacing and the wheel size is 13. What brake kit would you recommend? I prefer electric disk brakes, if available, and if not, electric drum brakes are ok. Electric over hydraulic actuated brakes would be best, if available. Thanks
asked by: Mike C
Expert Reply:
Thanks for reaching out, Mike!
Your 2-3/4" hole spacing sounds like it matches with a standard 3,500 lb axle brake spacing (2-13/16") so we'll get you setup with an Electric-Over-Hydraulic (EOH) brake system using those parts.
I really like the DeeMaxx kits because they have a much better coating on them than others on the market. For your application we have the kit # DE66YR with the Maxx coating, and we have the kit # DE46YR which has the Maxx coating on the rotors and brackets along with stainless steel calipers.
To complete your setup I recommend picking up the DeeMaxx Hydraulic Brake Line Kit # DE57SR and pairing that with the Hydrastar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness # HS381-9067 because the Hydrastar actuators have a proven track record and are very reliable.
Attached are some videos for your reference!

Product Page this Question was Asked From
DeeMaxx Disc Brake Kit - 10" Hub/Rotor - 5 on 4-1/2 - Maxx Coating - 3,500 lbs
- Trailer Brakes
- Disc Brakes
- Marine Grade
- 5 on 4-1/2 Inch
- Hub and Rotor
- 1/2 Inch Studs
- 3500 lbs Axle
- 14 Inch Wheel
- DeeMaxx
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: Parts Needed To Add Hydraulic Brakes To 2021 Shorelander Boat Trailer
- Q&A: Replacing Knott Brand Brake Calipers And Rotors On A Coyote Boat Trailer With 3,500 lb Axles
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Q&A: Looking For New Disc Brake Kit For 2020 Continental Boat Trailer
- Article: How to Bleed Your Trailer Surge Brakes
- Article: Most Popular Wheel Bearings
- Q&A: Most Common Trailer Brake Line Fitting Size
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Q&A: Converting Hubs From Grease To Oil Bath On 2014 Outback 298RE Travel Trailer
- Article: Printable Trailer Bolt Hole Pattern Template
- Q&A: Replacement Caliper Solution for Tie Down Engineering 46304
- Q&A: Will 14" Diameter Trailer Wheels fit On The DeeMaxx Disc Brake Kit # DE66YR?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)