Replacement Bearings for 2021 Grand Design Momentum 320G With 7k Dexter Axles

Updated 03/22/2026 | Published 03/18/2026

Products Featured in This Question

Replacement Trailer Wheel Bearing Kit, 14125A/25580 Bearings, 14276/25520 Races, Seal 10-36

(3556)

$44.93

Dexter Bearing Kit for 7K Axles - Bearings 14125A/25580, Races 14276/25520, Seal 10-36

(15)

$79.73

Question:

I have a 2021 Grand Design Momentum, 320G, with 7k Dexter Axles installed. DEX: 9625074 PO:011-492882 I am trying to figure out what hub bearing kit is needed. I have attached a photo of the sticker on one of my axle. Thank you.

asked by: William B

Axle Tag
(click to enlarge)

Expert Reply:

Hi William! Thanks for the picture of your axle tag. The correct bearing kit is the # BK3-200 with a 10-36 grease seal. If you want the Dexter version it is the # DX58ER,

Are you getting your Momentum ready for spring/summer? Any big trips coming up?

expert reply by: Robin H

Bearing Kit
(click to enlarge)

William J.

3/21/2026

Thank you for the help.

Robin H.

3/21/2026

@WilliamJ you're welcome, happy to help!

Larry D.

3/22/2026

The above mentioned kit is correct it should include Component Description Inner Bearing 25580 (1.75" I.D) Outer Bearing 14125A (1.25" I.D) Inner Race 25520 (3.265" O.D) Outer Race 14276 Grease Seal 10-36 (2.25" I.D) Cotter Pin Included in the kit Spindle Nut Retainer Included in the kit Hub/Dust Cap Included in the kit Hope this helps!

Kenny R.

3/22/2026

William this is just my experience and the way i have always done things. I bought the exact bearing and seal kit you are talking about. What i did was remove one entire set from the axle and hubs, then clean them up real good and actually get the part numbers off of the seals and bearings and races, they all have very small part numbers on them, usually i need a magnifying glass or i take a picture with my phone and expand it. Anyways, that's my take on assuring you get correct parts

Steve B.

3/22/2026

I bought this kit for 2018 arctic fox 29 5t Had to replace the rotor so I got new bearings and seal. This worked perfectly. I was very satisfied with the quality.