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…

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Answer 2

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 3

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 4

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 5

It's very common for smaller single axle trailers to have brakes installed on them already. Most likely if you look you'll find options in the size you want that are already set up with brakes. This would be the easiest and most cost…

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Answer 6

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 7

Based on what information I could find about AL-KO 8490 hub and drums, it is rated for 3,500 pound axles, has a 5 on 4-1/2 bolt pattern, and is a 10 by 2-1/4 inch drum. If this is the case, we have several options for you. I have attached a link to…

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Answer 8

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 9

The Trailer Hub and Drum Assembly part #AKHD-545-35-K is the correct replacement for an AL-KO 7230. In regards to the braking assemblies, I suggest getting a new pair, the Electric Trailer Brake Kit part #AKEBRK-35-SA. This option will save you some…

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Answer 10

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 11

Hey Sam, so from previous customers we have determined that the Sure Trac axles use the standard trailer axle components so yes the brake assemblies part #AKEBRK-35-SA and the hub part #AKHD-545-35-K would fit and work great.

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

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