Parts Needed To Add Electric Trailer Brakes To a Snowmobile Trailer With 3,500LB Axle

Updated 03/07/2023 | Published 03/06/2023

Products Featured in This Question

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

(3026)

$152.57

10 Gauge Wire - Blue Primary - Per Foot

(104)

$1.84

Bright Way Push-to-Test Trailer Breakaway Kit with 1-Amp Charger and 5 Ah Battery - Top Load

(206)

$59.25

Trailer Wiring Junction Box

(821)

$32.05

Grease Seal - Double Lip - ID 1.719" / OD 2.565" - for 3,500-lb Axles

(2618)

$7.65

Easy Grease Trailer Hub/Drum Assembly for 3.5K Axles - 10" Diameter - 5 on 4-1/2 - Galvanized

(738)

$174.76

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

(105)

$159.40

Hopkins 7-Way Molded Trailer Wire Connector - 11' Long

(187)

$57.92

Replacement Trailer Hub Bearing - L44649

(2074)

$14.16

Replacement Trailer Hub Bearing - L68149

(2074)

$14.31

Question:

Hello I have a snowmobile trailer with 3500 pound axle lugs are 5 on 4-1/2 with 13 wheels on it looking to put electric brakes on it do you have a complete kit to buy or do you need to piece it together if so what do i need Thanks

asked by: Mike K

Expert Reply:

We do have all the parts you will need but they are not available as a single kit. First you will need to verify your hub bearings and grease seal to ensure you have the standard 3,500LB sizes. The Inner Bearing # L68149(1.378" ID), Outer Bearing # L44649(1.063" ID) and Grease Seal # 58846(1.719" ID) are the common sizes used on 3,500lb axles and the hubs. We have the Hub/Drum # AKHD-545-35-G-EZ-K for EZ Lube spindles or the Hub/Drum # AKHD-545-35-G-K for standard spindles. Both hubs are galvanized coated to resist corrosion from road salt since you will most likely be driving in the winter. You will need to order a pair to complete your axle. They include new bearings, races, seals and lug nuts to install on your spindle. I recommend using the Electric Trailer Brake Kit # AKEBRK-35-SA as these are self-adjusting which will eliminate manually adjusting as they wear and provide better braking.

For the electrical you will need a 7-Way # HM20048 and Junction Box # 38656 to add a 7-way on your trailer. If you need a 7-way or brake controller for your vehicle, please let me know what you will be towing the trailer with. You will also need a Breakaway Kit # 3802308 which will activate you trailer brakes in the event of a disconnect while driving. Finally you will need Wire # 10-1-1 which we sell by the foot to run to both the brake assemblies.