Replacement Brake Assemblies For a 2003 Keystone Montana 3655FL With 6,000LB AL-KO Axles

Published 05/06/2022

Products Featured in This Question

etrailer Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand - 5.2K to 7K

(3026)

$186.02

Dexter Electric Trailer Brakes - 12" - Left/Right Hand - 6K AL-KO/Hayes Axles

(1555)

$318.43

Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal

(3317)

$29.94

Bearing Kit, 15123/25580 Bearings, GS-2125DL Seal

(3317)

$35.52

Question:

I have a 2003 montana 3655fl 5th wheel camper and want to replace the electric brake assembly with self adjusting brake assemblies. Which ones fit my trailer and what seals and bearings do you recommend? Thank you.

asked by: Mark C

Expert Reply:

To verify if you will be able to use the Electric Trailer Brake Kit # AKEBRK-7-SA on your 2003 Keystone Montana 3655FL 5th wheel you will need to verify that you have a 5 bolt brake flange on your axle. You will be able to verify this by looking at the brake flange on the backside of your hub and will not need to remove the hub. Be sure to check both axles as it is possible one may have been switched out.

There are some AL-KO axles that require the Dexter Electric Brake Kit # 23-105-106-09 as the axle has a 4-bolt brake flange.

To find the correct bearing kit you will need to disassemble one of the hubs to find the correct grease seal size. The Bearing Kit # BK3-110 uses a grease seal with an inside diameter of 2.125". While the Bearing Kit # BK3-100 uses a grease seal with an inside diameter of 2.250".

expert reply by: Bud M