Replacement Brake Assemblies for 2016 Keystone Bullet Ultralight 248 RKS

Updated 11/04/2026 | Published 10/31/2026

Question:

I need the whole of assembly and electric brake assembly for 2016 keystone bullet ultralight 248 rks 3500 lb axles price. Thanks

asked by: Michael k

Expert Reply:

Hey Michael, welcome back! Since your 2016 Keystone Bullet Ultralight 248 RKS has 3,500 lb axles the correct brake assembly set for both sides of your axle would be the part # AKEBRK-35. These are self adjusting too so you wouldn't need to ever mess with or even need to think about adjusting your brake assemblies. Are your hub/drums in decent shape?

expert reply by: Jameson C

Richard K.

11/3/2026

Can’t get the brakes to work. Checked three times to be sure they were on the correct side and the magnets worked. Adjusted the brakes four times. I’m taking the trailer to a trailer company. As a rancher for 30 years, I’ve worked on many trailer brakes, this one has me baffled.

Jameson C.

11/3/2026

@RichardK did you burnish them in already?

Richard K.

11/4/2026

@JamesonC What is burnish

Jameson C.

11/4/2026

@RichardK basically it's a way to wear the brakes into the hubs they are installed in so that the surfaces match and you get better braking contact. Take the trailer out to an open area, like a parking lot. Get up to around 40 mph then push the knob to engage the brakes. A middle setting or slightly higher is fine, you just need to make sure the brakes fully engage on the trailer. You also want to make sure you aren't using your vehicle brakes. The vehicle and trailer should slow down with the trailer brakes. Doing this 20-30 times should get them properly seated.