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Replacement Electric Brakes For A 2023 Brinkley Z 3100 5th Wheel With 7k Axles  

Updated 10/30/2025 | Published 10/13/2025



Question:

I am trying to find electric brake kits for my 2023 Brinkley Z3100 5th wheel rv. It has 2 Curt 7k lb axles

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Expert Reply:

Hi Kenneth!

Since your 2023 Brinkley Z 3100 5th wheel has 7k axles, I recommend grabbing the Terran Axle Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand - 6-7K # TX77ZJ. These are priced very well, fit the standard 5 bolt pattern for this size brake (which you also have), and are self adjusting so you won't have to crawl under the camper to adjust them every so often. Just keep in mind this will only replace the brakes on one axle. If you are wanting to do all 4 brakes, you will need to order two sets.

If your mounting hardware is also looking a little worse for wear, you can grab the Mounting Bolts and Hardware for 12" Single Brake Assembly # BRKH12S. This will replace the hardware on a single brake, so you will need two if you are just doing one axle or four if you are doing both axles. If your mounting hardware still looks good though, you can absolutely just reuse it.

Any more trips planned for the year or are you getting everything ready for next season?

expert reply by:
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Lazer S
Lazer S. profile picture
Etrailer Expert

Lazer S.

10/30/2025

Hey Kenneth, how did the Terran Axle electric brakes work out on your Brinkley Z3100? Did the fit and self-adjusting feature meet your expectations? Your feedback could really help others upgrading their 7k axles.

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