Parts Needed to Add Surge Disc Brakes to MFI Trailer for Yamaha Jet Boat
Updated 08/07/2025 | Published 07/07/2025
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Question:
Hello, I have an old MFI Trailer for a Yamaha Jet Boat 3.5K Tandem Axel. Based on some research online, the trailer uses UFP-DB 35 Brakes/calipers/etc. I need to redo the entire braking system brakes, rotors, hubs, bearings, brake lines and actuator. Would something like this work? - K2R35D x2 - AKIHUB-545-35-G-EZ-K - DX56FR My actuator has an electric backup where it brakes - not sure about brake lines
asked by: Zen
Expert Reply:
Hey Zen, yes what you mentioned will work great. The Kodiak disc kit part # K2R35D will slip over the hubs part # AKIHUB-545-35-G-EZ-K which are a fit for your 3,500 lb axles.
The surge actuator part # DX56FR will work great too as it was designed for disc brake applications like this as well.
Since you don't have a brake line kit already you'd then want the part # 20TA-BLKIT.
Product Page this Question was Asked From
Kodiak Disc Brake Kit - 10" Rotor - 5 on 4-1/2 - Dacromet - 3,500 lbs
- Trailer Brakes
- Disc Brakes
- Marine Grade
- 5 on 4-1/2 Inch
- Rotor
- 3500 lbs Axle
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- Kodiak
more information >
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Jameson C.
8/7/2025
Hey Zen, how did the installation of the new braking system go with the parts we discussed? I'm curious to know if everything fit well and worked as expected, as it could really help others with similar trailers.