Parts Needed To Add Drum Brakes To A 2021 Shorelander Boat Trailer

Updated 04/05/2023 | Published 04/03/2023

Products Featured in This Question

etrailer Rubber Hitch Cover for 2" Trailer Hitches - Qty 1

(3309)

$12.35

Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 5 on 4-1/2 - Galvanized

(35)

$187.06

Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased

(1220)

$91.22

Deka Heat Shrink Butt Connector - 16-14 Gauge - Nylon Insulation - Blue - Qty 10

(1104)

$13.84

Dexter Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3,000 lbs

(1554)

$266.04

Replacement Trailer Hub Bearing - L44649

(2074)

$14.16

Replacement Trailer Hub Bearing - L68149

(2074)

$14.31

Mystik JT-6 High Performance Synthetic Grease - 1 Lb Can

(30)

$22.58

Question:

I have a 2021 shorelander Boat trailer and looking to put a electric brake system on it 13x4.5 rim. 11-20 8-436 stamped hub. 2960 gawr. Any suggestions for drums and backing plate system? Can wire it in easy.

asked by: Troy

Helpful Expert Reply:

Thanks for the all the info. For the brake assemblies you'll want part # K23-472-473-00. These are designed to mount onto a 4-bolt brake mounting flange, if your axles don't have a brake flange then it'll honestly be less expensive to just replace the axle than it would be to get a brake flange welded in place. If that's the case let me know and we can explore the available options.

The 8-436 does have a few different options but they all use Inner Bearing # L68149 and Outer Bearing # L44649 and from what I can see they all have a 5 on 4.5 bolt pattern. You'll want to double check the bolt pattern to ensure compatibility with your wheels, but I'm fairly certain that they're 5 on 4.5 with a 1/2" stud so you can use part # 8-247-50UC3. These hubs are galvanized to help reduce wear from the water. If you just want regular hubs you can use part # AKHD-545-35-K instead, but they'll wear more quickly.

You'll want to pick up some heat shrink butt connectors # DW05744-10 for the brake magnet wiring since you're backing into water and you'll need to pick up some marine grease # L74FR for your bearings.

I've attached a short video below where I'll walk you through the installation process with a trailer that I switch over from idler to a hub/drum setup with brakes. If you have any other questions then please let me know.