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Replacement Bearings and Oil Bath Grease Seal for a 2025 Brinkley z3100  

Updated 03/01/2026 | Published 02/26/2026



Question:

Hello, I have a 2025 z3100 Brinkley. i am going to repack wheel bearings and going to replace the seal. Brinkley sent me this information AXLE CASSETTE SEAL BEARING 2 1/4 ID X 3.372 OD 8K UNITIZED OIL FOR V000990664. I was wondering if you could send me cross references for this deal.

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Expert Reply:

Hey Bryan, thanks for the information! The information Brinkley sent you corresponds to the Unitized Oil Seal for Trailer Hubs item # 10-63, which is not available in a bearing kit. A unitized oil seal is a two-piece, self-contained unit where the inner part remains fixed to the spindle while the outer casing rotates with the hub. These are only used in oil bath hubs. The item # GS-2250DL kit you were looking at has a standard grease seal, which is the same size but can't be used in oil bath hubs.

Here are all the replacement parts you'll need to replace the bearings, races, and seals in your 2025 Brinkley z3100 hub's:

Replacement Inner Bearing item # 25580
Race item # 25520
Replacement Outer Bearing item # 14125A
Race item # 14276
Seal item # 10-63
Oil cap item # RG04-230 if you need new ones

Does your Brinkley have an oil bath setup? The center caps will look like or similar to item # RG04-230 if you do.

You can add this information, along with any other questions you have, where it says Add Comment.

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Jerred H
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