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Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1
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Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1

Part Number: 168233
798 Reviews | 82 Questions
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$14.27
 Trailer Bearings Races Seals Caps
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Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 Grease Seals - Double Lip 168233
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Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 Grease Seals - Double Lip 168233
Redline Trailer Bearings Races Seals Caps - 168233
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Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 customer photo
Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 customer photo
Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 customer photo
Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 customer photo
Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 customer photo
Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 customer photo

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Great Prices for the best trailer bearings races seals caps from Redline. Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Older UFP Hubs/Marine Axles - Qty 1 part number 168233 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 - 168233

  • Seals
  • Grease Seals - Double Lip
  • 2.33 Inch O.D.
  • 1.69 Inch I.D.
  • Redline


Features:

  • Double lip seal retains the lubricant inside the hub and keeps out water and road grime better than single lip seals
  • Inner diameter 1.688"
  • Outer diameter 2.332"
  • Fits UFP straight spindle, unique #84 spindle, and S-1377X2, with a 1.688" seal journal
  • Primarily for UFP 4,200-lb hubs, 2014 and older
  • Also works on some older 3,200-lb and 3,700-lb marine axles
  • 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 16657
Dexter 168233, 010-180-00
Lippert --
National/Timken 473317
NOK AF7616E0, AD2527E0
Transcom 168233TB

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.



168233 Grease Seal - Double Lip - I.D. 1.688" / O.D. 2.332" - Quantity 1







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Customer Satisfaction Score:

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:
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:
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:
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:
They fit but no outer coating
by:
Trailer is being pulled out of state, needed the seals quickly. etrailer came through. Thank you
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by:
Great product but Alex guaranteed me delivery by Friday as I had a tournament Saturday. They didn’t arrive until Monday and I missed my tournament and etrailer never even offered a discount for the inconvenience.
by:
info., good prices. A great back-up company to deal with when our local parts companies can't fill the material requests.Seems like double lip, spring loaded seals are always tough to get. For marine applications they perform better. Highly recommend them. Great website, with good information and products. You know when you buy something from these folks, it's going to make it to the door. Thanks
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by:
Customer service is great they sent me exactly what I needed, and order arrived quickly. I will definitely order from etrailer.com again!!
by:
Correct part, good quality, fast shipping.
by:
These bearing seals install and work great! They were definitely oddballs--I couldn't find them anywhere else like Northern Tool, or Academy. In fact, twice, I bought the wrong set with the wrong advice from the store aids because they said, "It common, so it should work". Turns out, not so common after all. There's when I found etrailer...and glad I did!

Thank you!
Bryce profile picture

Bryce

5/23/2015

Great! Boat Trailer glides like a champ with no leaks of grease or water in or out!

by:
These arrived faster than I could have expected. Quality looks good. They fit the UFP oil bath hubs on my Ranger Trail just fine. I had tried the name brand parts suppliers and a couple of trailer specialists in Jax, Fl. and they all thought I didn't know what I was talking about. One place could have ordered seals for $10.00 each. Thanks Etrailer. I have already recommended you to a friend.
Steve S. profile picture

Steve S.

3/3/2015

I sold that boat and trailer last fall. No problems related to using your products. Ill go to you first on any future projects and recommend to friends.Thanks, Steve

by:
The seals fit, but no part number for the next person who will need to replace them.
by:
If you have UFP hubs on your boat trailer, these are the seals you need. Slightly smaller than standard 3500 lb axle hubs.

As always etrailer was fast and provided great service.
Rob profile picture

Rob

12/18/2014

No issues after 1 year. Still holding up great!

by:
I have only driven 100 miles so my review doesn't carry much weight. If given opportunity later I will update. I will say I had confusing and sometimes unpleasant ordering experience until I called and Tommy C. took charge of my dilema as to go with bearing buddy seal kit or a double lip seal. I went with double lip as per Tommy suggestion.
Angelo profile picture

Angelo

6/8/2015

Good, much better than single lip seal. No grease leaking. You have to get double lip seals in my experience for boat trailer

by:
Bought this seal for a boat trailer. I could find one anywhere in town but found it here on etrailer. Seal fit great and I’ve had no issues since marking this repair. Parts were delivered quickly. Thanks
David profile picture

David

7/10/2022

I use my boat a lot. Have not had any problems with the parts from etralier.

by:
Wrong size
by:
Want to help out the next customer looking for the bearing, cups, and seals for 2000-01 tracker trailstar trailer. 1st you have to dismantle one of the hubs and see what trailstar decided to put in there the day they built it. You will find the rear cups and seals are considered "Special for some reason". Not a problem for etrailer, they have them in stock and the quality is excellent and are exact replacements. The parts I had to order were cup L68110, cup L44610, seal 168233, bearing L68149 and bearing L44649. Oh yeah, customer service should get a 10 star review. I had an issue with shipping co. because of new driver in my area. Etrailer got all up in their business for me and I didn't have to do anything. Customer service also called me the next day to see if everything was delivered and satisfactory. We need more companys like etrailer.com . Excellent!!
by:
Great people to work with
by:
Perfect fit for Unique #84 spindles, easy installation and corrected the leakage from my worn out seals.
Robert profile picture

Robert

2/1/2022

After a year and many fishing trips trailering an average of 100 miles per trip, these bearings are still doing good. No hot hubs, bearing noise or other problems.

by:
Want to help out the next customer looking for the bearing, cups, and seals for 2000-01 tracker trailstar trailer. 1st you have to dismantle one of the hubs and see what trailstar decided to put in there the day they built it. You will find the rear cups and seals are considered "Special for some reason". Not a problem for etrailer, they have them in stock and the quality is excellent and are exact replacements. The parts I had to order were cup L68110, cup L44610, seal 168233, bearing L68149 and bearing L44649. Oh yeah, customer service should get a 10 star review. I had an issue with shipping co. because of new driver in my area. Etrailer got all up in their business for me and I didn't have to do anything. Customer service also called me the next day to see if everything was delivered and satisfactory. We need more companys like etrailer.com . Excellent!!
by:
Excellent experience.The product is of high quality and the order was processed immediately .I will come back to them to buy again.Thanks
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by:
I got the email notification that the package was delivered before I went to the mailbox.This digital age is amazing. And the delivery was a day ahead of promised.
I haven't installed them yet but I would like to complement
etrailer on the tech support. I have a 19 year old Tracker trailer. Every few years I replace bearings and always have a problem with finding correct parts, It seems the L68149 inner bearing uses 2 different races that are different in size. To make matters worse the existing inner race was not marked with the correct part number. L68111 instead of the correct L68110. I measured bearing sizes several times and was still not certain what was wrong. While chasing down what to order I found the answer in the etrailer FAQ page. Having the exact measurements for the parts really helped. I also found the perfect replacement for the damaged rubber part on the transom saver for the boat. Now when it warms up a few degrees I can get these installed and be ready to go fishing. Thanks, etrailer.
by:
My order was exactly what I wanted. I could not believe how quickly it was shipped and arrived. Speaking on the phone with them was a pleasant experience, she knew exactly what I was taking about and shipped it the same day. Product is quality grade and fits perfect. I have ordered from here before and definitely will again. I would give this a5 star rating but for some reason when I press on that, it disappears
Ronald profile picture

Ronald

11/10/2021

Still works great. Have hauled the trailer with replaced bearings in the wheels to Florida from New York, 4 trips total with no issues. Very happy with this product

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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?
  • Replacement Grease Seal For a Trailer Hub Using LM11949 Outer Bearing and LM67048 Inner Bearing
    If you can send me the diameter of the spindle where the grease seal sits and the diameter of the hub where the seal is pressed onto I can verify if we have the correct seal. Currently I do see we carry 2 hubs which use the Inner Bearing # LM67048 and Outer Bearing # LM11949. First is the Dexter Trailer Idler Hub Assembly for 2,500-lb Axles # DX22XR which uses the Seal # 168233. This seal has an inner diameter of 1.688" and outer diameter of 2.332". The other hub is an Agricultural Hub...
    view full answer...
  • How to Measure to Determine the Correct Grease Seal for a Trailer Spindle
    The # 168233 Double Lip Grease Seal has an outside diameter of 2.332 inches and an inside diameter of 1.688 inches. This seal is not compatible with a AF2527E seal with a O.D 2.312, because, even though the O.D. id very close, the inner diameter of the is seal is 1.750 inches and would not be the correct fit for the spindle diameter. You will need to take an accurate measurement of the outside diameter of your existing seal, or the inside diameter of the mounting surface for the seal in...
    view full answer...
    Image 1 for
  • Wheel Seal With 1.63 ID and 2.375 OD
    Based on the measurements you gave me it sounds like Grease Seal # 168233 that you referenced is the one you need. It's a double lip grease seal that has an Inner diameter of 1.688" and an Outer diameter of 2.332". The # 010-180-00 seal is another seal with an inner diameter of 1.68" and an outer diameter of 2.33" and also is a double lip seal. I know they are not the exact measurements you gave, but that is the closest size seal that we carry. That's also why it's important to measure...
    view full answer...
    Image 1 for
  • Grease Seal Recommendation to Replace AD2527E
    To replace your NOK AD2527E seal you can use # 168233. It has an inner diameter of 1.688 inches and an outer diameter of 2.332 inches. Based on what I could find on the NOK AD2527E the inner diameter is the same and the outer diameter is 2.328 inches. So it will be a slightly tight fit but no other seal is even close.
    view full answer...
  • 2800lbs Axle Replacement Seal
    The trailer seal part # 168233 is the correct size based on your dimensions. Your seal may just be bad and in need of being replaced which is why water getting in.
    view full answer...
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  • Replacement for AD2527E Grease Seal and Timken L68149 Bearing
    Thanks for reaching out, Michael! In the past we've recommended the Grease Seal # 168233 as a replacement for the AD2527E because it has a 1.688" ID and a 2.332" OD. To replace your L68149 Timken bearing and seal we have the Timken Kit # TMK73VR. If your other bearing part number is a different part number please let me know and I'll be happy to help you figure out what the else you're needing!
    view full answer...
  • Replacement Trailer Hub Grease Seal for AD2528EO
    We have just what you need based on the dimensions you listed. The correct grease seal you need is the part # 168255TB which has outer diameter of 2.561 and an inner diameter of 1.687 inch.
    view full answer...
  • Looking for Trailer Grease Seal that Has Outer Diameter 2.33 inch and Inner 1.675 inch
    Hey Dane, the only seal we offer that matches the dimensions you need is the part # 168233 that you referenced. While this would install flush in your hub it wouldn't be an issue compared to what you have now. Your current seal being wider or sticking out further would not be a problem.
    view full answer...
  • Where to Measure Spindle to Find the Correct Seal
    You are correct that for the Kodiak XL ProLube Kit # XLPROLUBE1980KIT the 1.72" is the diameter of where the oil seal rides and would not work for a 1.68" diameter. Oil is often used on higher capacity axles and we do not offer an oil seal that measures 1.68". We do have grease seals with an inner diameter of 1.68", part # 168233; if yours is a grease hub and you are using oil that may be why it is leaking but if the hubs are also full of water that can also cause leaking. I recommend...
    view full answer...
    Image 1 for
  • What Country is the Hub Bearing Kits for # 84 Spindle Made in? What Seal Matches AD2527EO?
    Hello Mike, All of our bearing kits are made in China, including the Hub Bearing Kit for Lippert, Dexter, and AL-KO 3,500 lb axles with the #84 spindle # BK2-100. The seal part number AD2527EO is a common double-lip grease seal used frequently with trailer axles rated for 3,500–4,200 lbs. It cross-references with seals from other brands, such as National (473317/47140) and Chicago Rawhide (16657/1665). The seal dimensions are 1.688" inside diameter (I.D.) and 2.332" outside diameter (O.D.),...
    view full answer...
  • Replacement Boat Trailer Seal for a NOK AD2527E Grease Seal
    The Grease Seal part # 168233 has a double lip so it can be used on a boat trailer and be submersed under water, yes. This is also the correct replacement for the NOK AD2527E Grease Seal that you have now.
    view full answer...
  • Ranger Trailer Cool Hub Replacement Grease Seal AD2527E
    The correct replacement grease seal for the AD2527E you listed is the part # 168233.
    view full answer...
  • Replacement Trailer Grease Seal for an NOK AD2527E Seal on a Boat Mate Trailer
    To replace your NOK AD2527E seal you can use # 168233. It has an inner diameter of 1.688 inches and an outer diameter of 2.332 inches. Based on what I could find on the NOK AD2527E the inner diameter is the same and the outer diameter is 2.328 inches. So it will be a tight fit but no other seal is even close.
    view full answer...
  • Appropriate Replacement for AD2527E Trailer Hub Grease Seal
    When your existing AD2527E grease seal is cross-referenced, the # 168233 does show up as an appropriate replacement. Both seals have a 1.688 ID and a 2.332 OD. The # 168233 would work just fine for you. I've linked to a demonstration video showing a hub rebuild.
    view full answer...
  • Grease Seal for Spindle that is 1.68 Inches in Diameter
    There are grease seals with inner diameters of 1.687 inches, # 168255TB, or 1.688 inches, # 168233, that would be a better fit. If the outer diameters match the inner hub bore diameter then you can use one of them instead. Seal # 168255TB has an inner diameter of 1.687 inches and outer diameter of 2.561 inches. Seal # 168233 has an inner diameter of 1.688 inches and outer diameter of 2.332 inches. The seals in set # RG06-050 have an outer diameter of 2.565 inches so that would mean #...
    view full answer...
  • Replacement Hub, Bearings, Races, and Seals for Trailer Hub with H-1377 Bearing
    First, it does sound like, based on the measurement and information you have provided, that race # L68110, is correct since its outer diameter is 2.327 inches. This race is associated with bearing # L68149 which has an inner diameter of 1.378 inches and fits a number 84 spindle. On these spindles the diameter where the seal goes is 1.73 inches such as # TRU84FR. The seal should be a tight fit. I once had a heck of a time pulling a hub off of a trailer that was held on by the seal only!...
    view full answer...
  • Which Grease Seal is Associated with L68149 Bearing and L68110 Race on a Boat Trailer Hub
    When the L68149 bearing is paired with the L68111 race, the 10-19 grease seal is used. However when the same bearing is used with the L68110 race on a boat trailer, the # 168233 seal is usually used. You can verify this by using a digital caliper to measure the hub bore (inside diameter) where the seal would sit and the surface of the spindle where the inside diameter of the seal would ride. The hub bore should measure 2.332 inches and the surface of the spindle that the seal would spin...
    view full answer...
    Image 1 for
  • What Seals Will be the Correct Replacements for an H-1000 Hub?
    From what I could find, you have a Reliable™ Brand, H-1000 Series hub. This hub uses a SL-172 seal, which cross references to our # 58846 seal. This double lip seal will have an inner diameter of 1.719 inches and an outer diameter of 2.565 inches. This is also for 3,500 pound axles. We also have the # 58846 as a 2 pack. This will be the # RG06-050 and two sets will get you back up and running.
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  • Replacement Grease Seal Recommendation for 32372 with OD 2.325 and ID of 1.680
    Based on the dimensions you listed we have the part # 010-180-00 which would fit and work well. This has an outer diameter of 2.33 inch and an inner diameter of 1.68 inch like you need so it would work well.
    view full answer...
  • Does Grease Seal Thickness Matter More than Inner and Outer Diameter
    The thickness of the grease seal like the # 168233 won't matter. You're really just worried about the inner and outer diameter of the seal, so as long as your seal cross references to the National Seal 473317 this will be the correct replacement.
    view full answer...
  • What is Difference Between Bearing Seal NOK # AD2527E and # AD2527EO
    We're not sure what the O stands for, in anything, but to make sure this bearing seal works for you you can take a few quick measurements. You will need to measure the outside diameter of your existing seal, or the inside diameter of the mounting surface for the seal in the hub. You will also need an accurate measurement of the spindle at the seal surface. I have posted a photo to show the dimensions you will need to measure. A dial caliper will provide an accurate measurement to determine...
    view full answer...
    Image 1 for
  • Replacement Grease Seal for Old Boat Trailer with 2-5/16 OD and 1-11/16 ID
    Part # 168233, appears to be a close match to your existing grease seal with 2-5/16" (2.3125) OD and 1-11/16" (1.6875) ID. It has an ID of 1.688", OD of 2.332" and a thickness of 0.38". Although I wasn't able to cross reference the "TTO E938" number on your seal, based on the dimensions and information you provided, the # 168233 grease seal should work well for you. It's typically used on #84 hubs which have a capacity of 3,500 lbs. Because grease seals do not hold their shape very well...
    view full answer...
    Image 1 for Image 2 for
  • Replacement Wheel Bearings for an EZ Loader Boat Trailer
    Based on the VIN your EZ Loader trailer was built at the Custom plant in Arkansas. The inner bearing for that trailer is an L68149 and the outer is L44649. Bearing kit # BK2-100 has the correct bearings and races but you would need a different seal, # 168233, available separately.
    view full answer...
  • Seal Recommendation for Replacing National 473317
    We only have one seal that matches the inner and outer diameter you need and that is the part # 168233 that you referenced. It may not be quite as wide as your current seal but it still will fit the hub and work well. I have attached a photo of the inside of a hub you can check out. In the photo the arrow indicates how the seal is installed on the hub. As you can see the flat side of the seal is flush with the edge on the inside of the hub. It would not need to be pushed past that point.
    view full answer...
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