What Bearings do I Need for the Kodiak Disc Brake Kit with 12" Rotor ?

Updated 07/28/2026 | Published 07/21/2026

Products Featured in This Question

Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Dacromet and KodaGuard - 5,200 to 6,000 lbs

(87)

$517.59

Replacement Trailer Hub Bearing - 15123

(2189)

$12.25

Replacement Race for 15123 Bearing

(1303)

$4.00

Replacement Race for 25580 Bearing

(1303)

$12.85

Replacement Trailer Hub Bearing - 25580

(2189)

$24.05

Easy Grease Trailer Idler Hub Assembly for 6K Axles - 6 on 5-1/2 - Pre-Greased

(1090)

$100.07

Grease Seals 10-36 (pair)

(2630)

$10.09

Question:

What are the part numbers for the wheel bearing and seals for these rotors?

asked by: David R

Expert Reply:

Hello David,

I am happy to see you finally found a reason to write into us after being a loyal etrailer neighbor (customer) since 2010!

The Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Dacromet and KodaGuard - 5,200 to 6,000 lbs # K2R526DKG uses a slip-on rotor, so you will also need an idler hub to complete the setup. The Easy Grease Trailer Idler Hub Assembly for 6K Axles - 6 on 5-1/2 - Pre-Greased # AKIHUB-655-6-EZ-K is a great choice. It comes pre-greased and includes inner bearing # 25580, outer bearing # 15123, inner race # 25520, outer race # 15245, and grease seal # RG06-070.

Couple of questions before you order. What is the capacity of your axle? Also, are you looking to convert your trailer to disc brakes, or do you already have disc brakes and just need a new bearing kit? Just trying to better understand your set-up and what you are trying to do so I can ensure we get you the correct parts.

expert reply by: Kate F

David R.

7/27/2026

Perfect, many thanks!

David R.

7/27/2026

@DavidR. The trailer has timbren 5200 lb axleless suspension.

David R.

7/27/2026

@DavidR. It already has the listed Kodiak disc brakes. Im looking to repack the bearings and need the seals and would like to have the bearings and races in hand incase anything requires replacement

Kate F.

7/28/2026

@DavidR Thanks for getting back to me. It could be one of 2 kits, you will need to just remove the outer bearing to confirm, they both have the same inner diameter so they will both fit your spindle, the outer diameter is different, so it all depends on what hub you have. If you outer bearing is LM67048: # BK3-300 If your outer bearing is 15123: # BK3-110 It would be really nice if they could just make one of those obsolete so there were only one option. If you do not feel like getting greasy, if you see any numbers on the hub itself I am happy to try to cross reference to see if it will give us the answer.