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| Inner Diameter (ID) | Outer Diameter (OD) | Use With: |
|---|---|---|
| 2.75" | 3.779" | Hayes #99 Spindle |
| Seal Cross-Reference | ||||
|---|---|---|---|---|
| Dexter # | Transcom # | National # | Hayes # | Chicago Rawhide # |
| - | OB27377 | B370352BG | 091030 | CR27438 |
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today were going to review part #91030. This is a Redline Unitized Oil Seal. This is designed to be used on Hayes #99 spindles. It has an overall diameter of 3.779. Has an internal or inner diameter of 2.750. When it says a unitized oil seal, basically what that means is that its a dual-action seal, meaning the inner part stays fixed on the spindle, and the outer casing will rotate with the hub.
This type of seal has less wear and tear and provides better leak protection. Basically, you can see if thats being held, this will actually rotate. Give you a good idea of a unitized oil seal. Now also, if you go to the product page for this part number, well also have a chart which will list a seal cross-references and the different brands of seals that are made. What you can do there is if you have a seal that youre looking for, you can match it up to the seal cross-reference chart.
Itll list the part numbers for the different brands on that chart. If you have one that will match that number, itll mean itll match up to this part number also.That should do it for review on part #91030. .
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Fast shipping and fit perfect
Good source for trailer parts and prompt shipping
Product was exactly what I needed to get back on the road. The picture zoom assured me that the part that I was getting matched to old one exactly. The product also arrived in a timely manner. To top it all off the customer service, attention, and follow up have been second to none.
I repair trailers, these seals work good every time
Good service and fast shipping!
The product was excellent and service is excellent
Sheila was the best! She knows her stuff and got me all the right part numbers and items for a 10,000# double axle brake rebuild. Brakes, bearings, races, seals etc. Shipping was quick and the couple B/O items shipped a few days later as she indicated. Now all I have to do it is put it all back together.
We did receive our order yesterday afternoon. I was not happy to see how the packing was done and did take a picture of the box when I opened it. All Bearing and Seals was thrown in the box and not protected during shipping. Now I'm second guessing if the bearing are damaged from shipping. They was not wrapped and my concern would be if the bearing was nicked or scratched during shipping . I would appreciate a contact in regards to this matter .
Great product and fast service. I will be back I have other trailers and I have told several or maybe even many people about you. Thank you so much These were mostly bearings and seals for a heavy trailer so I don't have any pictures. Take my word for it though with them
Being on the trailer repair business I replace a lot of axle seals - and a n alarming amount of failed ones. It doesn't pay to go cheap. These hub oil seals by Redline seem to be good quality and hold up well.
One seal did not want to fit. Could not get any help or a call back from etrailer. Very dissatisfied.
no more leaky axle seals with these.
I am well pleased with the bearing seals, they were a bit expensive but needed, only criticism is the packaging for shipment. I spent $240 on seals and needed them on a tight timeline, they were shipped in a light weight bubble wrap envelope, They made it okay but I really would have appreciated more care in pscking to ensure they are not damaged and having to go through a return process.
Correct seal that fits well!
Fantastic customer service.
excellent service got the parts I needed and very quickly
no leaks so far!! fit perfectly.
Just be careful during installation to not bend them, since they rotate inside of each other.
Do you have a question about this Trailer Bearings Races Seals Cap?
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Sam
10/26/2025
these seals seem to have stopped all internal oil leaks to my brake shoes.