How to Determine Correct Electric Trailer Brake Size

Updated 07/15/2020 | Published 07/13/2020

Products Featured in This Question

etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K

(3317)

$152.87

Brake Mounting Flange for 2-3/8" Round Axle

(27)

$26.93

Question:

I have a Shorelander boat trailer model 1824. What brake assembly should I use to replace them.

asked by: Pat

Expert Reply:

We don't have any way of knowing the brakes you need for your Shorelander boat trailer but can tell you how to determine the right ones. To determine the brake assemblies that will fit your trailer, you need to know your axle's weight capacity, your mounting flange bolt pattern and the inside diameter and depth of your drum.

For example, the Electric Trailer Brake Kit # AKEBRK-35-SA are for 3,500 lb axles, measure 10" diameter x 2-1/4" wide (so that is the drum size they fit in) and fit a 4-bolt mounting flange that has bolt holes which measure 2-7/8" apart on center like Mounting Flange # 4-35.

The accompanying photo shows the dimensions of the brake mounting flange, which you can use to compare to yours.

I have added a link to our entire selection of electric brakes for you to come back to once you know this information, or you can let me know your axle capacity, flange, and drum size and I will be happy to find the right parts for you.

expert reply by: Kyle S