Parts Needed to Add Brakes to Tandem Axle Boat Trailer with 14 Wheels

Question:

I have a tandem axle boattrailer with 14 in wheels I want the kit to put electric brakes on one axle, what kit should fit that axle? or what do I need to know to get the correct parts. I want new wheel bearings as well. thansk

asked by: Phillip C

Expert Reply:

To start, you'll want to know what the capacity of your axle is, which lets us know what size the hub and drum on your trailer is; however, since you've got 14" wheels, you've most likely got 3500-lbs axles with 10" hub and drums. In order to determine the correct wheel bearings that fit your hub, we do recommend pulling the hubs to confirm the bearings that you've currently got to ensure you get the correct parts; however, most 3500-lbs hubs use the # L44649 outer bearing and # L68149 inner bearing.

For the brakes, I recommend using the Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA, which are self adjusting and will provide the least maintenance after installation. These do not come with any brake mounting hardware, so you'll want to use the # BRKH10B as the hardware kit.

It's also likely that you will need to install a 7 way on your trailer, if there is not one already present. For this you can use the Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector # HS381-9000, which allows you to install everything cleanly and have the correct wiring harness needed for a trailer with brakes.

If you don't already have a 7 way on your tow vehicle, you will also need to add one of those, as well as a brake controller. If you can let me know what your tow vehicle is, I can help you locate the correct parts for that, as well. I also recommend doublechecking your axle capacity and the bearings that are currently in your hubs to be sure that these are the correct fitting parts, but this would be the most likely configuration. If you find something different, just let me know.