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  6. 2.25 Inch I.D.
Grease Seal - Single Lip - I.D. 2.250" / O.D. 3.066" for Ag Spindle AS4500F - Qty 1
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Redline

Grease Seal - Single Lip - I.D. 2.250" / O.D. 3.066" for Ag Spindle AS4500F - Qty 1

Part Number: SL226
798 Reviews | 3 Questions
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Retail:$8.16
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 Trailer Bearings Races Seals Caps
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redline trailer bearings races seals caps grease seal - single lip i.d. 2.250 inch / o.d. 3.066 for ag spindle as4500f qty 1
redline trailer bearings races seals caps grease seal - single lip i.d. 2.250 inch / o.d. 3.066 for ag spindle as4500f qty 1

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Great Prices for the best trailer bearings races seals caps from Redline. Grease Seal - Single Lip - I.D. 2.250" / O.D. 3.066" for Ag Spindle AS4500F - Qty 1 part number SL226 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Redline Trailer Bearings Races Seals Caps - SL226

  • Seals
  • Grease Seals - Single Lip
  • 3.07 Inch O.D.
  • 2.25 Inch I.D.
  • Redline


Features:

  • Replacement grease seal helps ensure optimal performance from bearings and races on your agricultural hub
  • Inner diameter 2.250"
  • Outer diameter 3.066"
  • Width 0.250"
  • Fits agricultural spindle AS4500F with 9,000-lb capacity axles, and 4,500-lb capacity hubs
  • For low speed application, not for highway use
  • Includes 1 seal


Use the Cross Reference to Match the Seal You Have

Seal numbers are not always listed the same way across axle and hub brands, so the cross-reference data gives you another way to confirm the replacement before the hub comes apart. This grease seal matches the following common seal numbers:


Brand Part Number
Chicago Rawhide/SKF --
Dexter 7700255
Lippert --
National/Timken --
NOK --
Transcom 223062VHY

How to Measure for a Replacement Seal


Measuring a spindle

Use a digital caliper and measure to the nearest thousandth of an inch.

  • Seal I.D.: Measure the diameter of the spindle at the grease seal seat (B), where the seal rides.
  • Seal O.D.: Remove the old seal and measure the inside diameter of the hub bore where the seal presses into the hub.

Measure each location in a few spots to check for wear or an out-of-round surface. Match both measurements to the replacement seal.



SL226 Grease Seal SL226 - Single Lip - I.D. 2.250" / O.D. 3.066" for Ag Spindle AS4500F - Stepped Spindle - 9K Axle







Customers Who Purchased This Trailer Bearings Races Seals Caps Also Bought...



Video of Grease Seal - Single Lip - I.D. 2.250" / O.D. 3.066" for Ag Spindle AS4500F - Qty 1
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for An In-Depth Look at the Grease Seal SL226

Speaker 1: Today we're taking a look at the Redline grease seal, part number SL226. This is a single lip design grease seal, which is designed for use on an agricultural hub. The outer diameter, which is the overall diameter, so from outer edge to outer edge, is 3.066 inches. The inner diameter, inside edge to inside edge, is 2.250 inches.Now, we do have a cross reference chart. If you go to the product page at etrailer.com for this part number, we have a cross reference chart that will help you in choosing the correct seal for your application. That's going to do it for today's look at the Redline grease seal, part number SL226..

Ratings & Reviews

4.8

798 reviews
5 Stars
(682)
4 Stars
(72)
3 Stars
(23)
2 Stars
(5)
1 Star
(16)
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by:
Just got them today, fast service, they look good, know more when I install them.
by:
I think that you guys are better than other suppliers because you have delivered on the promised date of my order whereas other suppliers have failed to deliver these particular grease seals by not keeping their promises. I have now completed the task of repacking the bearings on my boat trailer and can continue fishing. I lost two weeks of prime walleye fishing because of failed promises from other suppliers to deliver these parts. I guess you guys are the GOAT of suppliers.
Jesse M. profile picture
Etrailer Expert

Jesse M.

9/24/2026

Thanks for the review, Truman. Glad to hear we were able to help you get back on the road and back out there fishing! I was down at lake of the Ozarks last week and I watched someone reel in a huge walleye. So cool!

by:
If you have a UFP/DICO 45263 hub (commonly found on 2013 Heritage/Tracker trailers with the original Vault oil-bath system), a successful replacement is:
CE Smith CE13315 galvanized pre-greased hub assembly
Replace the included grease seal with 13194 (1.372" ID × 1.979" OD)
Spindle uses L44649 inner and outer bearings
5 on 4-1/2 bolt pattern
13" trailer wheels
This combination has been successfully installed as a direct replacement for the original Unique BT/UFP Vault hub.
by:
This size seal has been hard to find as it is on an older trailer with older axles. These were perfect and fit as expected and seemed to have a great seal on the axle. eTrailer again was great to work with as communications is the key thing they have always had. Thanks again and will be back again.
by:
Seal seems fine but does not fit my hub with a 14125A inner bearing. Needed a different brand seal.
by:
Perfect fitting.
by:
fast shipping, good value
by:
My first time ordering form etrailer Sarah made it simple and easy! Keep up the good work
by:
Shipping practice is atrocious. These were just kinda chucked in the box loosely with a set brakes and a strip of paper. Somehow they appear to have survived ok.
by:
These were the right fit for my boat hub and axle. These are a different brand than the old seals I removed but they came up on the web site as replacement seals and the specs matched.
Steven profile picture

Steven

1/8/2026

Because I have a boat trailer, I remove my hubs and inspect the condition of the grease, bearings and seals every year. After one year I saw no sign of water intrusion and no sign of grease blowing past the seal onto the axle. The seals did their job!

by:
Thought a bearing always came with a race was always told you had to change them both they didn’t even come in a box loose in a bag not happy at all
by:
Never got my order after I payed for one day shipping it’s been over a week and still haven’t seen it yet I won’t be ordering from them again
by:
All of the replacement parts were correct thanks to Ric’s help and expertise. We really appreciate his help. Customer service is excellent.
by:
Chris was a huge help when I ordered these. I told him we have some pretty solid trailer parts suppliers in town, but they all struck out on this. He made sure I got the correct parts. I’ve already installed them, and it seems to be a proper fit.
by:
These grease seals were hard to find, but etrailer had them in stock. They fit a 1979 EZ Loader boat trailer with twin 6 lug axles. My vintage boat trailer uses the typical 5200# wheel bearings, but uses a smaller O.D. grease seal than most similar boat trailers.
by:
Didn’t get all the items I asked for . Received bearings without races and races without the correct bearing. Reorder the items missing the day I received the first order.
by:
I appreciate the fast shipping!
by:
Item was exactly as described. Shipping was fast
by:
None of the parts have numbers on them. I guessing they are the right ones. This is my only concern. It’s been my experience that the numbers are stamped on the parts.
Thanks
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by:
Exact fit that I need for the magic tilt trailer
by:
Perfect fit on my trailer I bought different seal in my locals autopart and don’t it fit, thanks to etrailer.com because is the only one have this particular grease seal fit in my boat trailer ?? and shipping was very fast 5 stars.
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by:
This was a difficult item to find except on etrailer. All bearing kits for my hubs come with 1-1/4" ID seals, etrailer was the only place that had them. Received my order within a matter of days. Great customer service.
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by:
They fit but no outer coating
by:
Very informative web page, and helpful customer review blog. You can find almost any trailer question you may have. These hard to find grease seals were readily available and fit perfect. I used them for my 1986 boat trailer conversion project.
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by:
Exactly the part I needed. Had the correct ID, OD and Width I needed to replace the seal on a 1990 Coleman Roanoke Royale Pop up camper. It would be helpful to note the following information on this website. Width: 0.432" which is different than many other seals I looked at which contained the 13194 seal number but contained a seal in a kit that was the width of 1.250. The seal I received has the Blue looking outside ring around it rather than bare metal shown in the stock photo on this site. The seal I received is the one shown in the video review on this site. In the photo you can see a side by side comparison between a different seal and the one sold by etrailer with a width of 0.432 which is what I needed. I hope this comparison helps determine if this is the seal you need. You may be able to see the number of the seal printed on the rubber of the seal in the photo.
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See what our Experts say about this Redline Trailer Bearings Races Seals Caps

Do you have a question about this Trailer Bearings Races Seals Cap?
  • Can Smaller Grease Seal be Used on Alko 5200 Lb Axle
    If the original seal had an inside diameter of 2.250, then that is the size I would stick with. The inside diameter is what rides on the spindle so you would not want to go with a smaller seal as you mentioned. We have two seals that have the 2.250 I.D. dimension. The first is # GS-2250DL. It has a 2.250 I.D. and a 3.376 O.D. The other seal we offer is part # SL226. This has a 2.250 I.D. and a 3.066 O.D. I recommend using a digital caliper like part # PTW80157 and measure the spindle...
    view full answer...
  • Availability of Replacement Grease Seal Part 30624
    My research on this grease seal part number turned up only its specified inner and outer diameters, which are 2.125 and 3.066 inches respectively. It is not at all unusual for a used seal to measure differently than when it was new; the effects of wear and the process of removing the seal can often distort it. Also, the rubber compounds at the inner diameter can shrink and deteriorate and give a misleading dimension. We do have two grease seals with this exact 3.066-inch outer diameter...
    view full answer...
  • Do You Carry a Grease Seal With 2-1/4" ID and 3-1/8" OD?
    Currently we jump from the Seal # SL226 which has the 2.25" ID but a 3.066" OD to the Seal # GS-2250DL you found with a 2.25" ID and a 3.376" OD. We do not have a seal with a 3-1/8" OD. If you are unable to find the correct seal you may be able to have a sleeve machined which will allow you to use the # SL226 seal.
    view full answer...

Do you have a question about this Trailer Bearings Races Seals Cap?


Info for this part was:

Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Updated by:
Daron K
Employee Dawn Z
Updated by:
Dawn Z

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