Looking For Replacement Grease Seals For 2021 Nitro XLR 28DK5 With Dexter 7,000 lb Axles
Updated 06/18/2026 | Published 06/16/2026
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Question:
2021 Nitro XLR 28DK5 VIN: 4X4FXLD29MF167280. the axle Serial Numbers are: S/N: 131221930019 and S/N: 131221930025 7000lbs Can you find out the seals I need., What is the ID 2.125inch or 2.250inch ? and is the straight spindle hub bore OD 3.376inch ? here is the Axle Sticker info: dexter axel 6937814 Plant 34 PO: D045A -042443 DEX : 6937814 DUE: 2020-07-30 D70 CAPACITY: 7000 LBS ORD: 566135-2 7 30 20 S1 L1 HF = 91.00 SC=74.50 S/N: 131221930019 NEV - R- ADJUST 6937814 Plant 34 PO: D045A - 042443 DEX : 6937814 DUE: 2020 - 07 -30 D70 CAPACITY: 7000 LBS ORD: 566135-2 HF =91.00 SC =74.50 7 30 20 S1 L1 S/N: 131221930025 NEV - R - ADJUST Thanks
asked by: Vic
Expert Reply:
Hey Vic, thanks for reaching out. We will have the seal you need, but these Dexter 7K D70 axles are tricky because Dexter used two different seal sizes on their 7K axles and the info on the sticker actually doesn't tell us what seal it uses. It's going to be either the # GS-2125DL or # GS-2250DL.
The difference is the inner diameter of the seal. The # GS-2250DL has an inner diameter of 2.250" and the # GS-2125DL has an inner diameter of 2.125".
The best way to determine what you need will be to remove a hub and measure the seal ID, or see if you can make out the number stamped on the edge of the seal.
Or if you don't want to take anything apart, sometimes we can use the casting number from your hub to pull up your bearing/seal info. Brake drums should have a number stamped right on the front.
Get me that info when you can and I'm happy to look into it and make sure you get the right thing.
Are you needing new bearings too? Or just the seals?
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Product Page this Question was Asked From
Grease Seal GS-2125DL - Double Lip - I.D. 2.125" / O.D. 3.376" - 5.2K to 7K Axles - Qty 1
- Trailer Bearings Races Seals Caps
- Seals
- Grease Seals - Double Lip
- 2.13 Inch I.D.
- 3.38 Inch O.D.
- etrailer
more information >
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Vic
6/18/2026
I thought you could use that info and find out from dexter. Also you didn't address: "And is the straight spindle hub bore OD 3.376inch ? "