Parts Needed to Install Electric Brakes on a 5 X 8 Cargo Trailer

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Question:

Hello, I would like help to make sure I have all the parts I need to add brakes to my new Interstate 5 X 8 cargo trailer. It has a 3500lb axle with a brake mounting flange attached. The wheels are 15inch with a 5 on 4.5 pattern. I also plan on ordering the brake module and install kit plus a spare tire. Here is what I have in my cart so far: TK90160 Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional - TK90160 ETBC7 Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires - ETBC7 AKHD-545-35-EZ-K Trailer Hub and Drum Assembly - 3,500-lb E-Z Lube Axles - 10inch Diameter - 5 on 4-1/2 - AKHD-545-35-EZ-K AC15R45WMQ Contender ST205/75R15 Radial Trailer Tire w/ 15inch White Mod Wheel - 5 on 4-1/2 - Load Range C - AC15R45WMQ H20044 7-Way Molded Trailer Wire Connector, 6foot Long - H20044 38656 Trailer Wiring Junction Box - 38656 AKEBRK-35-SA Electric Trailer Brake Kit - Self-Adjusting - 10inch - Left and Right Hand Assemblies - 3,500 lbs - AKEBRK-35-SA

asked by: Darin

0

Expert Reply:

To add brakes and the wiring to support their operation to your 5 x 8 cargo trailer you'll want to make sure the brakes have the correct rating for your axle (which you did) and also that they use the same mounting bolt pattern as your installed brake flanges. The brakes you referenced, left and right brake kit # AKEBRK-35-SA, use a 4-bolt flange pattern.

The hubs you referenced, # AKHD-545-35-EZ-K, will work with these brakes. Do note that these hubs are intended for axles with EZ-Lube spindles that have a grease zerk fitting on the end. They will also work on standard spindles.

Wiring the brakes will require a junction box like # 38656 as well as the 7-way trailer plug like # H20044. You will also need ring terminals # 44-5310A to make the connections and 10-gauge wire # 10-1-1 to run from the junction box to each brake assembly. Either brake wire can be ground or hot. You can refer to the linked article for more on adding electric brakes to a trailer; this will give you a complete recap of all the things to keep in mind and all the parts required.

The wheel/tire you referenced, Provider # TA47VR, will fit your selected hubs and is rated appropriately for the 3500-lb axle capacity.

expert reply by: Adam R

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Answer 1

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 2

First, since the owner's manual says 500 pounds, you will want to keep it at or under 500 pounds. The Fiat 500 is a small vehicle not really used for towing. Every pound counts and you would not want to overload it and end up with frame, drive…

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Answer 3

You can install on your existing trailer a new axle that has electric brakes, but there are a few things to consider. First you need to make sure the new axle has a weight capacity equal to or greater than the stock axle. (I did a check on the…

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Answer 4

With a smaller trailer like you describe, electric brakes would be my recommendation both from a cost standpoint as well as the ease of installation. For the trailer, you would need two hub/drum assemblies and two brake assemblies. To determine if…

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Answer 5

If you already have brake drums you will not have to replace them unless they are damaged or became overheated and have discoloration on the inside armature surface where the magnet rides, grooves in the armature surface, or severe wear where the…

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Answer 6

If you connect the trailer brake light circuit to the trailer brake circuit your brakes would lock up immediately since 12 volts is max braking voltage for trailer brakes. You'd need a brake controller that can vary voltage so that you can apply…

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Answer 7

I currently have four different self-adjusting assemblies for your boat trailer with 10" x 2-1/4" electric drum brakes. You can choose from the following: -Terran Axle Electric Trailer Brakes #TX97ZJ (3,500 Axles) -etrailer Electric Trailer…

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Answer 8

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 9

Yes, the Electric Trailer Brake Kit - Self-Adjusting #AKEBRK-35-SA that you referenced are an exact replacement for the AxleTek assemblies you have now that have Axletek-10-GG stamped on them. If you check out the attached picture you can see the…

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Answer 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 11

Hi Rusty; the Dexter #84546UC3-EZ and etrailer #AKHD-5475-35-K will both fit a 3,500 lb axle but they have different bolt patterns. You already ordered the Dexter in the past so I'm assuming your wheels are 5 on 4-1/2. For the same bolt pattern…

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Answer 12

I think I have a solution for you in the Global Link RV Entry Door Locking Latch Kit, #295-000021 for white or, #295-000019 for black. This latch kit measures 3.47" wide x 4.28" tall, fits doors that are 1-1/4" to 1-1/2" thick,…

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Parts Needed to Install Electric Brakes on a 5 X 8 Cargo Trailer

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