Determining the Correct Replacement Bearing Kit for a 2021 Alliance Paradigm 5th Wheel

Updated 01/27/2026 | Published 08/20/2024

Products Featured in This Question

Grease Seal - Double Lip - 2.250" ID - 3.376" OD - GS-2250DL

(2630)

$13.94

Replacement Trailer Hub Bearing - 14125A

(144)

$16.04

Replacement Trailer Hub Bearing - 25580

(2190)

$24.16

Bearing Kit, 14125A/ 25580 Bearings, 10-36 Seal

(3526)

$43.64

Grease Seals 10-36 (pair)

(2630)

$10.09

Question:

I have 2 Dexter 7,000lb. Axles under my 2021 Alliance paradigm 5th wheel. The serial on one of the axles is s/n 135302159122 both axles are ez lube axles. I want to buy the kit that will replace both bearings,races, and seals in both axles. So do I need the kit BK3-200

asked by: Larry M

Expert Reply:

Larry, unfortunately the serial number does not tell me what bearing kit you need. You're going to need to pop off those hubs, and fish out the bearings, and let us know what part number is stamped on it.

If your outer bearing has the part number # 14125A, and the inner bearing has the part number # 25580, then the Bearing Kit, 14125A/ 25580 Bearings, 10-36 Seal # BK3-200 is what you'll need.

If not, let me know what those bearing numbers are and I'd be happy to find the correct replacements. You'll also want to double check that your hubs use the # RG06-070 seals.

expert reply by: Bryce D

Kate F.

1/27/2026

Hey Larry, did you get a chance to check the bearing numbers on your Dexter axles to see if the BK3-200 kit matched up? Knowing which bearings fit could really help others working on similar 7,000‑lb setups.