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  1. Trailer Bearings Races Seals Caps
  2. Dexter
  3. Seals
  4. Oil Seals
  5. 3.376 Inch O.D.
  6. 2.250 Inch I.D.
Unitized Oil Seal for Trailer Hubs

Unitized Oil Seal for Trailer Hubs

Item # 10-63
Our Price: $56.77
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Trailer Bearings Races Seals Caps
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Shipping Weight: 0.19 lbs
Dexter Oil Seals Trailer Bearings Races Seals Caps - 10-63
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Great Prices for the best trailer bearings races seals caps from Dexter. Unitized Oil Seal for Trailer Hubs part number 10-63 can be ordered online at or call 1-800-940-8924 for expert service.
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Dexter Trailer Bearings Races Seals Caps - 10-63

  • Seals
  • Oil Seals
  • 3.376 Inch O.D.
  • 2.250 Inch I.D.
  • Dexter

A unitized seal is a dual action seal. The inner part stays fixed on the spindle and the outer casing rotates with the hub. This type of seal has less wear and tear and provides better leak protection.

Use With:
2.250 3.376 Dexter 8K (& 9K until 10/89)

Seal Cross-Reference
Dexter #
Transcom #
National #
Chicago Rawhide #
Timken #

010-063-00 Unitized Oil Seal for Trailer Hubs

Replaces 10-63

Customer Satisfaction Score:

Customer Reviews

Unitized Oil Seal for Trailer Hubs - 10-63

Average Customer Rating:  4.9 out of 5 stars   (39 Customer Reviews)


The cheap single lip oem seals all leaked grease onto the brake shoes, what a mess! These oil bath seals are well worth the money and do not leak.


Need to ship in better packaging. Boxes came in with holes. Parts were missing.
Replacement parts were sent out but the job is now delayed waiting on the parts.


I really like these seals, they cost more, but they do an excellent job of oil control, the only disadvantage is if you remove the hub, the seal is probably not going to be reusable, my ratio is about 50/50 but careful patient disassembly helps. I highly recommend this seal for hub rotors that are oil bath, not for drums that are grease and need removal to change brakes. I put about 80k miles on my trailer per year, very happy with the performance


Good product. Measures as advertised.


Seal worked as it should. No issues


Exactly what was needed. Installed fine. Outstanding customer service by I was in a rush, needed the part overnight and my rep watched the order, told me when it shipped and followed it through until it was in my hands. Can't ask for anything more!!

Customer service ++


This seal is of better quality then any other seals I have had in the past, these should last a lifetime. This place has good prices on some hard to find parts, can get almost anything you need, reasonable shipping with lots of options.


Purchased these for spares after using the last spares redoing my bearings. I try to ALWAYS have a spare set on hand. Not exactly the same as the previous ones but will certainly do the job.


Great to do business with. Always get what I need when I need it. Ricky at Etrailer is on top of my favorites list.


This oil seal is a one time use. If you remove it the internal spring pops out.


I haven't had it long so can't speak of the longevity, the quality looks good and it figs perfect and works as we speak


Products came well packaged and in good condition. Online video's and product information was helpful.



Quick delivery
Delivered as promised

The oil seal is doing its job. There are no leaks and oil level is stable
LloydB - 08/13/2017


did a great job


great product and price


Everything fit as hoped for and arrived in a timely fashion , I will use you again for sure


This seal fit nice and snug. It seemed like a very quality built product.



Very happy to have the right parts delivered in a timely manner. Installed quickly and now Im back on the road.




by: 09/05/2022


Show More Reviews

See what our Experts say about this Dexter Trailer Bearings Races Seals Caps

  • Purpose of the Metal Plate on Unitized Trailer Hub Grease Seals
    The unitized seal part # 10-63 has a metal plate that attaches and stays fixed to the spindle and the outer rubber piece will rotate with the hub. This is the kind of seal that is used on oil bat hubs and this particular one is for 8k rated Dexter hubs.
    view full answer...
  • Does Unitized Oil Seal for Trailer Hubs 10-63 Require Sealant
    I contacted Dexter and the Unitized Oil Seal for Trailer Hubs part # 10-63 do not require RTV sealant or a gasket maker. They are typically used in oil bath hubs. I have attached an installation video for your reference.
    view full answer...
  • Oil Seal For Dexter Axles Matching Size Of Dexter 10-36 Grease Seal
    For an oil seal matching the inside and outside diameter of the 10-36 grease seal, you will want the Unitized Oil Seal for Trailer Hubs # 10-63 for your Dexter axles. You can also use the Oil Seal # 9103309 confirmed to fit Hayes axles of the same size. Hayes was bought out by Dexter.
    view full answer...
  • Removal and Installation of a Unitized Oil Seal for a Trailer Oil Bath Hub
    Unitized oil seals such as # 10-63 for example are different than regular grease seals. Unitized seals have an inner part that stays fixed to the spindle on the axle and its outer case rotates with the trailer hub. You would remove and reinstall a new one the same way you would with a regular seal. The best tool to use for unitized seals is a seal removal tool which you should be able to get at a local auto parts store. Once you pry out the old seal, place the new one in the hub. Use a...
    view full answer...
  • Unitized Oil Seal for Trailer Hubs Installation and Lowest Price Pledge
    The item you selected, while having the right measurements, is not a unitized oil seal. We do carry the 10-63 unitized oil seal (see link). Installing the seal requires pressing the seal flush or slightly into the hub. I normally use a wooden block to seat the seal flush with the back side of the hub. We have an install video for you to watch that shows installation of a grease seal. Normally flush installation is correct unless Tie Down Engineering specifies differently.
    view full answer...
  • Grease Seal for a Dexter 7K Axle
    Based off the information you have provided me I was able to narrow down your options to two. Since you have a 7k Dexter axle you will need either a 2.25 ID grease seal or a 2.125 ID grease seal. Grease Seal - Double Lip - 21325 item # 21325 Grease Seal 10-36 - Quantity 1 item # 10-36
    view full answer...
  • Replacement Seals, Castle Nut, and Oil Cap For 2011 Carto Mate Car Hauler
    In order to know what the correct seals, nut and oil cap, I need to know what spindles you have on your axles. If you can provide me with caliper (like # PTW80157) measurements or bearing numbers for your inner and outer bearing (printed on the face of most bearings), I can help you with the parts you need. Measurements of your hubs with the caliper would also be very helpful for a confirmed fit. Please see attached photo.
    view full answer...
    Image 1 for
  • Parts Needed To Change Trailer Hubs From Grease To Oil Bath
    In order to be able to change your hubs from using grease to an oil bath you need a couple items. For the hubs you said have an inner diameter of 2.44 I recommend the Kodiak XL ProLube Oil Bath Hub Body and Cap, part # XLPROLUBE2440. This has the hub body that fits in your hub and a cap with threads. You will also need the Unitized Oil Seal, part # 10-63 for your hubs. This is a dual action seal. The inner part of the seal stays fixed in place on the spindle and the outer part turns...
    view full answer...
  • How to Choose the Correct Seal for Gooseneck Trailer
    In order to choose the correct oil seal for your gooseneck trailer you will need to measure the inner and outer diameter of your current seal to the thousandths and measure your spindle at the the seal surface using a digital caliper like # 301-17068. These measurements will allow you to choose the right seal; I've added a link to our page with each of our oil seals for you to take a look at.
    view full answer...
    Image 1 for
  • Will Double Lip Grease Seal or Unitized Oil Seal do Better Job of Retaining Grease in Hubs
    The TruRyde Grease Seal # GS-2250DL referenced in your question is a double lip seal that will do a great job at retaining the grease inside your hubs. They will also exclude water and road grime better than a standard single lip seal. The Redline Unitized Oil Seal # 10-63 you also referenced will do a nice job at providing leak protection with the dual action seal as well. The inner part on the seal will stay fixed on the spindle while the outer casing rotates with the hub. I like this...
    view full answer...
  • Can Oil Seal be Used in Place of Grease Seal
    So long as the dimensions are what you need, you can use an oil seal as opposed to a grease seal on your trailer hub. For example, the Oil Seal # 10-63 and Grease Seal # GS-2250DL both have 2.250" inner diameters and 3.376" outer diameters so they are compatible. If you are in the process of changing out your bearings and seals, I have added links to help articles on how to replace them as well as a link to our entire selection of bearings, races and seals for you to check out.
    view full answer...
  • Replacement Seal for National Seal or Timken Seal 472920
    National seal 472920 has an inner diameter of 2.25 inches and outer diameter of 3.375. For a replacement, you will want Grease Seal - Double Lip # GS-2250DL or oil seal # 10-63.
    view full answer...
  • Grease and Oil Bath Version of Hub Seal 010-036-00
    The grease seal 010-036-00 that you mentioned is our part number # RG06-070 but then for the exact matching oil bath seal with same dimensions you'd want the part # 10-63.
    view full answer...
  • Comparing TruRyde 10-36 Grease and Dexter 10-63 Oil Seal
    The TruRyde Grease Seal part # RG06-070 and Dexter Oil Seal part # 10-63 are both designed for the same size spindle as they have the same dimensions, 2.250" inner diameter and 3.376" outer diameter. That said, the TruRyde is a grease seal therefore designed to be used with grease lubricated hubs. The Dexter is an oil seal which is designed to be used with oil bath lubricated hubs although can be used with grease as well because of the tighter fit.
    view full answer...
  • Can Seal Included With Bearing Kit BK3-200 Be Used With Oil Bath Hubs?
    The seals included in the Bearing Kit # BK3-200 you were looking at are only designed for hubs that use grease. If your hubs are oil bath you will need to go with two of the Unitized Oil Seal for Trailer Hubs # 10-63 instead. I included videos of the products mentioned for you to take a look at.
    view full answer...
  • Replacement Oil and Grease Seals For PHLE AP3137N2 Oil Seal
    The Unitized Oil Seal # 10-63 is the correct replacement oil seal for the phle ap3137n2 oil seal that you have. If you want to switch to a grease hub you will need the Grease Seal # GS-2250DL.
    view full answer...
  • Can Oil Seal be Used in Place of Grease Seal on Trailer Hub
    A grease seal like the part # GS-2250DL would be your best option if that is the size you need. You can go to an oil seal like with the Unitized Oil Seal for Trailer Hubs # 10-63 which is same size and it would work but it's not going to be considerably more effective or reliable than a grease seal. It might be a little bit better in how it would work out but the price is much higher.
    view full answer...
  • Will Grease Seal RG06-070 Replace the Dexter Seal K71-386-00
    Correct, although the TruRyde Seal part # RG06-070 has the same dimensions as the Dexter Seal part K71-386-00, the TruRyde is for grease and the Dexter is for oil. The Dexter Seal part K71-386-00 cross-references to our Unitized Oil Seal for Trailer Hubs part # 10-63.
    view full answer...
  • Replacement Oil Seal Recommendation for Dexter Hub Part # 8-285-10UC3-A
    The correct oil seal for Dexter Hub Part # 8-285-10UC3-A is the part # 10-63. I attached a review video for this as well.
    view full answer...
  • Recommended Electric Brake Magnet And Hub Components For Dexter 9000-Lb Axle
    The Replacement Magnet Kit for your Dexter 12-1/4 inch brake assemblies is part # BP01-301. The kit includes the magnet, the spring, and the clip. For a Dexter 9K system manufactured after October 1989, the unitized seal you need is part # 10-51. If your axle was made before October 1989 the seal you need is part # 10-63. The Oil Cap Kit is part # RG04-270. This kit includes the cap, O-ring, and plug.
    view full answer...
  • Grease Seal Recommendation for 7,200 lb Dexter Hub
    The 7,200 lb Dexter hub is the part # 8-393-4UC3 which takes the grease seal part # 10-63.
    view full answer...
  • What Is The Correct Oil Seal For A Dexter 9K Axle Pre-1989?
    The correct oil seal for the 9K axle pre-1989 is the Unitized Oil Seal # 10-63. It has a 2.250 inch inner diameter and a 3.376 inch outer diameter and is a dual action seal. The inner part stays fixed on the spindle and the outer casting rotates with the hub. This type of seal has less wear and tear to provide better leak protection.
    view full answer...
  • Correct Oil Seal for Dexter 10K 8-214-5UC1 Hub/9-27 Brake Drum
    The 9-27 (it's 9-27-1, actually) brake drum is part of a 2 piece hub/drum that uses # 8-214-5UC1 for the oil bath hub assembly. The correct oil seal is part # 10-56. The seal has an OD of 4.5 inches, and an ID of 3.125 inches. The # 10-63 you'd mentioned is too small, as its typically used with 8K capacity axles, so it wouldn't be compatible.
    view full answer...
  • Replacement Brake Assembly and Oil Seal for Dexter 00828510 Brake Drums
    It looks as if you have the # 8-285-10UC3-A Dexter Oil Bath hubs. Thanks for sending the photo! Those hubs take a 12 x 3-3/8 inch brake assembly, I'd recommend a self-adjusting brake assembly kit like # K23-532-533-00 which are compatible with a 4 bolt brake flange. This includes the right and left brake assembly. The correct oil seal for your hubs is # 10-63, which has a 2.25 inch ID and a 3.376 inch OD. You can see some product videos for these product by clicking the provided links.
    view full answer...
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Video Edited:
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