Parts Needed to Convert Trailer with 3,500 lb Axles to Disc Brake
Updated 01/27/2026 | Published 08/22/2024
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Question:
Im interested in doing a disc brake conversion on 3500 pound axle. Its a Carry-on trailer. Vin if helpful 4ymbu1410jg078919. It has electric brakes on it currently. Any input would be appreciated. Thanks.
asked by: Eric R
Expert Reply:
Hey Eric, for your trailer with 3,500 lb trailer axles you'd need the part # HBA16-252-82 that includes the actuator, breakaway kit, junction box, and 7-way trailer connector. Then for just the disc brake kits part # K2HR35D and you'd be set. I prefer the Hydrastar actuators as they are more reliable overall and faster reacting.
Product Page this Question was Asked From
Hydrastar Electric Over Hydraulic Actuator Kit for Disc Brakes - 1,600 psi
- Brake Actuator
- Electric-Hydraulic Brake Actuator
- Boat Trailer
- Travel Trailer
- Disc Brakes
- Hydrastar
more information >
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Jameson C.
1/27/2026
Hey Eric, how did the disc brake conversion go on your Carry-On trailer using the Hydrastar actuator and Kodiak kit? Your update could make it easier for the next person working on a similar setup.