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Dexter Oil Seal - Double Lip - I.D. 1.687" / O.D. 2.561" - 3.7K to 4.2K Axles - Qty 1
(203 reviews)
Price: $20.42
In Stock
Dexter
Dexter Oil Seal - Double Lip - I.D. 1.687" / O.D. 2.561" - 3.7K to 4.2K Axles - Qty 1
Part Number: 168255TB
In Stock
$20.42
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- All Info
- Reviews (203)
- Q & A (0)
- Photos
Dexter Trailer Bearings Races Seals Caps - 168255TB
- Seals
- Grease Seals - Double Lip
- 3700 lbs Axle
- 4200 lbs Axle
- 2.56 Inch O.D.
- 1.69 Inch I.D.
- Dexter
Double lip grease seal fits Dexter 3,700-lb to 4,200-lb marine axles using the Vault hybrid oil lubrication system.
Features:
- Replacement grease seal helps ensure optimal performance from bearings and races
- Inner diameter 1.687"
- Outer diameter 2.561"
- Fits a UFP/Dexter hybrid tapered spindle on Dexter 3,700-lb to 4,200-lb marine axles
- Works with Vault Hybrid Lubication System
- 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 | K71-292-00 |
| Lippert | -- |
| National/Timken | -- |
| NOK | AD2527E |
| Transcom | AB16255 |
How to Measure for a Replacement Seal
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.
010-168-00 Dexter Double Lip Seal for 3.7K Marine Hubs - Works with UFP/Dexter Vault Hybrid Lubrication System
Replaces 158755 and 168255TB
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Wrong item was ordered
- Did not arrive in time
- Alternate product found
Ratings & Reviews
4.8
203 reviews
by:
David
06/18/2026
All parts were a perfect fit. Im glad etrailer had all the parts I needed.
by:
John
09/28/2026
Great parts fast shipping
by:
Joe
05/25/2026
Fits Dexter 3,700-lb marine axles as described on dimensions, for a 1.68" diameter shaft. Note that many 3500 lb axle shafts measure 1.72" diameter, so don't buy the incorrect seal, as both seals' outside diameters are the same 2.561" OD.
by:
Mary
03/12/2013
I converted a boat trailer into a flatbed ATV/UTV trailer. My boat trailer has some different seal dimensions than a normal 3500# axle. These seals saved the day and fit perfectly into standard 3500# hubs for my trailer. Thanks!
by:
Rich
04/23/2026
Good seal for my boat trailer hubs.
by:
John Forgione
05/07/2025
Everything came in on time.All parts fit as expected . Tyler B.was easy to work with and helped me select the parts I needed.
John F.
5/8/2026
Product is working as intended. Had the boat and trailer back and forth,Mechanics,launch ramp,etc.
Heather A.
5/9/2026
@JohnF That’s great to hear, John, and I really appreciate you coming back with the follow up after a year. What kind of boat do you have?
by:
Anthony
07/17/2023
The hub that was sent the inner bearings do not fit. The old hub bearings and the new hub bearings are identical same numbers even. Even if I had been given the correct hub the new bearings do not fit in the inner hub?? I did call And one of the customer service people helped me through confirming this she gave me her extension. I left her a message she was helpful.
by:
Rachael
03/23/2026
Great service and quick shipping
by:
Dan
01/07/2026
Very good service and very knowledgeable about trailer axles , solved my issues with getting me the correct parts, thanks
by:
Steve
09/22/2026
great item...and service!
by:
Tom
05/29/2026
Perfect fit for my axle, it’s been over a year since installed and no leaks
by:
Duane
04/29/2026
Quality seal. Exactly what I wanted.
by:
John
05/15/2026
Great quality and perfect fitment.
by:
Scott
05/12/2026
Seals appear to be of good quality and fit well.
by:
Ed P.
09/11/2014
Perfect fit for my 2000 EZ Loader tandem axle trailer and Skeeter.
eTrailer, if you're listening, please become a trailer parts expert that has a cross reference listing for trailer parts by manufacturer. I asked if this was the right seal and was told to pull the old seal for the part number on it. The problem was I suspected that the hub had the wrong seal on it, which I confirmed when I replaced it with this part. Using the part number from the existing seal would not have fixed the problem in this case. I had to do my own leg work and find the most likely candidate for the correct seal and take the gamble that I had the right one. Glad my research was correct. Please build your own cross reference of the major manufacturers so that you can be the expert in all things trailer. You have the other stuff covered.
eTrailer, if you're listening, please become a trailer parts expert that has a cross reference listing for trailer parts by manufacturer. I asked if this was the right seal and was told to pull the old seal for the part number on it. The problem was I suspected that the hub had the wrong seal on it, which I confirmed when I replaced it with this part. Using the part number from the existing seal would not have fixed the problem in this case. I had to do my own leg work and find the most likely candidate for the correct seal and take the gamble that I had the right one. Glad my research was correct. Please build your own cross reference of the major manufacturers so that you can be the expert in all things trailer. You have the other stuff covered.
Patrick B.
9/12/2014
Seals are kind of a pain. Even if a cross-reference sheet was built which is difficult because seals dont use common part numbers like bearings, if the incorrect seal was used like in your case, the cross-reference would only direct you to another incorrect seal. The absolute best way to determine which seal is needed is to measure 2 things with a dial caliper. Measure the seal surface on the spindle, that will give you the seal ID. Measure the diameter of the seal surface on the hub and that will give you the OD of the seal. With the ID and OD of the seal, it becomes very easy to find the seal, even on our site.
Ed P.
3/21/2015
Correction to my original review. I had one hub that was replaced on my trailer before I acquired it. This seal worked for that hub, but not the original hubs.
by:
Ray
09/05/2025
Not much to say about a hub seal. It fits and the delivery was very fast.
by:
Paul S
10/13/2016
These were hard to find, odd size I guess. etrailer came through with quick shipping and they fit perfect. Holding up well so far.
Paul S.
10/13/2017
Perfect. Have held up over a number of long trips.
by:
Deborah
02/24/2026
What I needed and arrived faster than expected
by:
Kelly
06/26/2025
Always great service with parts needed! Don’t go to the parts store when you can have exact components from etrailer!
by:
Leroy
03/26/2020
Everything was as ordered. Grease Seal part number 168255tb was the same seal included in bearing kit BK2-100.
The description of 168255tb was not the same as the description in kit BK2-100.
I would not have wasted my money on the 2 extra seals if I would have know they were the same
The description of 168255tb was not the same as the description in kit BK2-100.
I would not have wasted my money on the 2 extra seals if I would have know they were the same
Victoria B.
3/27/2020
The seal that comes in the BK2-100 kit has a slightly larger diameter than this seal, and that kit typically fits a 3.5K axle. This 168255TB seal is designed specifically for Dexters 3.7K Marine axle.
by:
Dan
03/20/2025
If you need parts , they have what you need and you can get parts pretty fast, I use etrailer for my boat trailer needs. Love the their service dept
by:
Thiyaga
10/06/2017
I replaced three old seals in the last one year with these in my twin axle EZ Loader trailer . All of them are holding on well till date. Keeps the grease inside the hub and no leaks found. Works with SS sleeve, in addition.
by:
Shelby
05/15/2019
Good shipping and communication. Have made multiple orders through e trailer and all have been simple and they found what I needed
Shelby
5/16/2020
Called e trailer they cross referenced my parts and got me what I needed when no one else could
by:
Jrf
07/10/2020
I had a hub and bearing go out on a boat trailer going down the road. Tried matching separate parts locally, but were not available. Was able to order all the parts from etrailer at one time. They had on hand and shipped right away. Parts were exactly what I was looking for. Perfect fit. Now if I would have known that the other side would have failed in the next 12 months I would have done them all at the same time.
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See what our Experts say about this Dexter Trailer Bearings Races Seals Caps
- Oil Seal With 1.68 Outer Diameter And 2.56 Hub Inside Diameter We have the Dexter Axle Double Lip Seal for Marine Hubs # 168255TB which has the 1.68 inch diameter you need along with the 2.56 inch inside hub diameter you need.
view full answer...
- Hub Replacement Recommendation for DICO Hub part 45264Yes, the CE Smith Trailer Hub part # CE13511 will fit as a replacement for your DICO hub 45264 but you will need to use a different seal as we have found that your spindle diameter is slightly different which means you need the # 168255TB as well.
view full answer... - Replacement Grease Seal for Lippert 3,500 Lb Axle SN: 045-002688794I called Lippert and they informed me of the grease seal dimensions for your 3,500 lb axle. The correct replacement grease seal for you is part # 168255TB.
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- Replacement Trailer Hub Grease Seal for AD2528EOWe 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... - Identifying Capacity and Replacement Parts for UFP AxleAccording to Dexter, this is a 3,750 lb torsion axle with a 90.3" hub face measurement. More than likely your axle uses # L68149 and # L44649 bearings with a # 168255TB grease seal. You will need to verify this information since Dexter did not have it available. Assuming that is correct, we have the following parts available depending on what you need: -Trailer Idler Hub Assembly # AKIHUB-545-35-K -Trailer Hub and Drum Assembly # AKHD-550-35-K -Electric Trailer Brake Kit # AKEBRK-35-SA -Dexter...
view full answer... - Replacement Hub for Freedom Axle 45264Hi Jeff; based on what we have found in the past the Freedom Axle 45264 uses a standard 3,500 lb axle bearing combination. For a replacement hub you can use the CE Smith Trailer Hub Assembly # CE13511. However, the grease seal is different on your spindle so you will also need to replace the included grease seal with the # 168255TB.
view full answer... - Replacement Parts for EZ Loader Boat TrailerHello again Steve; sorry for the trouble, sometimes our system doesn't play nice with pictures. I'm not seeing any calipers or rotors in the parts diagram there, only standard idler hubs. I can tell you that the bearings are # L68149 and # L44649 with the # 168255TB grease seal. If you're wanting to completely replace the disc brakes the exact part doesn't really matter as much. The Kodiak Disc Brakes - 10" Hub/Rotor - 5 on 4-1/2 # KOD77FR will work as an oil bath replacement and come...
view full answer... - How To Figure Out the Correct Replacement Hubs for EZ Loader Boat TrailerIn order to find the correct replacement hubs for your EZ Loader boat trailer you will need to take apart your current hub assembly and look at the bearings themselves; wipe away the grease and you should be able to see the part number stamped directly on them. If you are unable to find them, you would need to use a digital caliper and measure your spindle to the thousandths of an inch where the bearings ride. You can use the photo I've attached to see exactly where you need to measure....
view full answer...
- Replacement Idler Hub Needed Hey James, Can you doublecheck the measurements of your spindle at points B, C, and D from the diagram below with a caliper # PTW80157? If the spindle is tapered the inner and outer bearings should be different. The only grease seal that matches your dimensions is the # 168255TB which isn't a fit for the idler hubs we carry with a 5 on 4.5 bolt pattern. If you find the measurements differ then I can keep looking for a fit. If not you'd be looking at a complete replacement for the axle...
view full answer...
- Replacement Grease Seal w/ a 1.638" ID and a 2.565" ODHey Jeff, thanks for the information. It sounds like you need the Double Lip Seal for 3,700-lb Marine Hubs item # 168255TB. It fits a inner diameter of 1.687" and an outer diameter of 2.561". What kind of trailer do you have?
view full answer... - Spare Hub For a Vanguard V1830BR Boat TrailerWhile I can not see exactly what hubs come on your Vanguard V1830BR trailer I can make an educated guess based on the trailers 3,700lb GVWR. It most likely has the Dexter 3,700lb axle which is going to use a standard 3,500LB Hub # AKIHUB-545-35-EZ-K with a Grease Seal # 168255TB rather than the included seal. If you can find an axle tag on your axle with serial number I can verify this for you or you would need to verify your hub has the 1.68" ID grease seal with L68149 inner bearing and...
view full answer... - Replacement Hub for DICO 45264Yes, the CE Smith Trailer Hub part # CE13511 will fit as a replacement for your DICO hub 45264 but you will need to use a different seal as we have found that your spindle diameter is slightly different which means you need the # 168255TB as well.
view full answer... - Replacement Bearing Set for Freedom Axle 45264 3500 lb Idler HubIf you're just needing replacement bearings, races and grease seals, you'll need the following per hub: • # L44649 Outer Bearing • # L68149 Inner Bearing • # L44610 Outer Race • # L68111 Inner Race • # 168255TB Grease Seal If you're wanting to replace the entire hub, you'd use # CE13515 for a galvanized hub or # CE13511 for black powder coated. The bearings, races and seal is pre-installed and the bearings are already packed with grease, but the included grease seal would be incorrect...
view full answer... - Replacement O-Ring For A Dexter Vault Grease Cap And Replacement For AD2528E0 Grease SealHi Frank, Everything I can find says the AD2528EO grease seal has a 1.68" inner diameter and 2.56" outer diameter so you would be able to swap it out with the Double Lip Seal for 3,700-lb Marine Hubs # 168255TB. For the O-ring you'll need part # DX22CR.
view full answer... - How To Find Correct Idler Hub For 2004 EZ loader Boat Trailer With 2,999LB Axle CapacityThere are 2 ways to figure out exactly what you need Chris as I cannot look up parts for your 2004 EZ Loader boat trailer based on just a model. If you have the VIN you or I can contact EZ Loader to verify the correct bearings and seals used on your current hubs or you can pull a hub off and get the part numbers off the parts. If the part numbers are not visible you could also measure the spindle using a Caliper # PTW80157. Based on the axle weight you most likely have the #84 spindle...
view full answer... - UFP Hubs Spare for Trailer that Uses Bearing Numbers L44649 L68149The CE Smith hub part # CE13511 is exactly the hub you need as a spare. It matches the bearings and grease seal inner diameter so it would fit and work great. It also comes pre-greased.
view full answer... - Recommended Seal for a 1.68" Spindle Hey Jonathan, for your 1.68" spindle you are going to need the Double Lip Seal for 3,700-lb Marine Hubs # 168255TB. This seal has a 1.68" inner diameter, and a 2.56" outer diameter.
view full answer... - Looking For Replacement Hubs For Utility Trailer With 4,200 lb AxlesHey Allen, thanks for reaching out. Yes, we do have the hub you are looking for. Here is what you'll need: - Trailer Idler Hub Assembly for 4,200-lb Axles - 5 on 4-1/2 - Galvanized # DX45BR - Replacement Trailer Wheel Bearing - L68149 - Qty 1 # L68149 - Dexter Oil Seal - Double Lip - I.D. 1.687" / O.D. 2.561" - 3.7K to 4.2K Axles - Qty 1 # 168255TB All of this is sold separately/individually so you'll need two bearings, one seal and one grease cap to go with each hub. Races are included...
view full answer... - Replacement For Grease Seal With 1.687" ID and 2.565" ODHi Jeff; with those measurements you can use the Double Lip Seal for 3,700-lb Marine Hubs # 168255TB. This is the same as the Rockwell American seal you found but it is made by Dexter. The inner diameter is the same and the outer diameter is 2.561". The difference is likely a slight variation in your measurement. Even if it is not, the 0.004" difference won't be a problem with fitment.
view full answer... - Looking for Replacement Bearings for UFP Hub for 3,700 lb AxleHey Christopher, we have all of the replacement parts that you are looking for with the bearing # L44649, race # L44610, bearing # L68149, race # L68110 and then for a seal part # 168255TB.
view full answer... - Replacement Bearings and Grease Seal for TDE 46845Hi David; based on what we have found in the past your TDE 46845 uses # L68419 inner and # L44649 outer bearings. There should only be the one grease seal like a standard hub, which as far as we know is the # 168255TB with an inner diameter of 1.687" and outer diameter of 2.561". Make sure to measure and verify this. If you find that your grease seal has an ID of 1.719" and OD of 2.565" you need # 58846 instead. Let me know what you find.
view full answer... - Looking For Grease Seal With 2.325" OD And 1.685" IDHey Steve, thanks for reaching out. Yes, we do have the seal you need. Here is the part number: - Grease Seal - Double Lip - Inner Diameter 1.68" - Outer Diameter: 2.33" - Qty 1 # 010-180-00 This matches up perfectly with the dimensions you provided. What kind of trailer do you have?
view full answer... - Replacement Seals for a Jet Ski Trailer Using L44649/L44610 BearingsHey, Kevin. I'm not 100% sure what you mean by better but we do have double lip seals that will work for you. Part # RG06-010 match up to the 1.250" inner and 1.979" outer diameter that you are needing. The thickness of the seal wouldn't matter, as long as the inner and outer diameter matches up.
view full answer... - Replacement Agricultural Seal With Inner Diameter 1.5" And Outer Diameter 2.545"That is an exceptionally odd seal size, Jeane. The closest stand alone seal we have would be the Dexter Double Lip Seal # 168255TB, but this will measure 1.687" inner and 2.561" outer diameter. So it's a bit off in both areas, but close. Are there any visible numbers on the seal? They get very hard to read after while, but might still be there. Also, do you know how old the axle is?
view full answer...
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Mary
3/19/2014
Trailer works perfectly thanks to you guys!Whenever I need a trailer part, I look to you guys first.