Replacement Brakes for a 2021 Keystone Alpine Fifth Wheel 3910RK
Updated 09/17/2025 | Published 09/08/2025
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Question:
Good morning. Im looking to purchase 4 electric brake assemblies. Your website doesnt list a Keystone Alpine 3910RK, Which brake assembly can i use for that model? Any help would be greatly appreciated. Thank you
asked by: Randall W
Expert Reply:
Hey, Randall!
I did some digging and I keep getting results showing that your camper should have 7,000 lbs Dexter axles. You would want to make sure just in case. If you're unsure you can check the stamp on the hub for a number, all Dexter hubs will have them. I've also gone ahead and linked a help article that goes over other ways to help ID your axle capacity.
If you do have 7k axles, you can get part # AKEBRK-7-SA for self adjusting brakes or part # AKEBRK-6 for manual adjusting brakes. Let me know what you find about your axle and I can confirm if the 7k brakes will work for you.
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Randall W.
9/17/2025
Good morning Gwendolyn. You are correct. I ordered the manual (4) set for the 7k axles, and they worked perfectly. Thank you for your help.