Is There A Hydraulic Brake Kit For A 4,400 lb Axle?
Updated 08/07/2026 | Published 08/04/2026
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Question:
I want to upgrade my travel trailer with tandem axels to hydraulic brakes. However it appears they don’t make them for 4400lb axels. My tire rims have a 6 bolt pattern. Any suggestions?
asked by: Brad H
Expert Reply:
Hey Brad, thanks for reaching out. It is possible to convert your 4,400 lb axles over to disc brakes. The 4,400 lb axles generally use the same braking system as a 3,500 lb axle. These assemblies use bearing # L68149 and # L44649 so you will want to confirm the fit with your spindle. Assuming this is all correct, there are hubs that can be used on your trailer, but they are going to have the 5 on 4-1/2" bolt pattern. There is nothing in a 6 lug so if you convert you will need new wheels and tires too.
As long as your axle uses the bearing sizes I listed, you can use a brake kit like the Kodiak Disc Brake Kit # K2HR35D which has 5 on 4-1/2" hubs. You will need a brake line kit like the Hydrastar Hydraulic Brake Line Kit # HS496-252 which comes with a 25' main line. You will also need a hydraulic brake actuator which can be either a surge brake actuator like Demco # DM62VR, or an electric-over-hydraulic actuator like the Hydrastar Electric Over Hydraulic Actuator for Disc Brakes # HBA16 depending on your application.
If you want to go the EOH approach, we do have the Hydrastar Electric Over Hydraulic Actuator Kit for Disc Brakes # HBA16-252-82 which is a complete conversion kit. You get everything but the disc brake kits.
From here I'd just need to confirm your bearing sizes, and if you want to do surge brakes or EOH.
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Product Page this Question was Asked From
Kodiak Disc Brake Kit - 10" Hub/Rotor - 5 on 4-1/2 - Dacromet - 3,500 lbs
- Accessories and Parts
- Trailer Brakes
- Disc Brakes
- LH
- RH
- 3500 lbs
- Brake Assembly
- 5 on 4-1/2
- Hub and Rotor Assembly
- Kodiak
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