Arrives before Christmas 
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Whether you’re taking your boat out for a weekend adventure or doing regular maintenance on your marine trailer, the Double Lip Seal is key to keeping water out and grease in. Its robust design is tailored specifically for Dexter 3,700-lb marine axles, offering unmatched durability in wet conditions. With an inner diameter of 1.687 inches and an outer diameter of 2.561 inches, it’s the precise fit you need for effective sealing.
Switch from oil to grease with ease using our product that's designed for versatile axle applications. The double lip design isn’t just about water protection—it’s perfect for grease-filled hubs as well. Whether you’re doing regular maintenance or making a conversion, this seal is made to keep your bearings running smoothly by holding grease firmly where it’s needed.
Frustrating fit issues are a thing of the past with this perfectly measured seal. Ideal for those tricky trailers, the exact dimensions (inner diameter 1.687”, outer diameter 2.561”) ensure a snug fit in standard hubs. Say goodbye to loose parts and leaks — this seal stays put, providing the kind of reliable performance that makes installations seamless.
Enjoy long-lasting performance with a seal that’s built to withstand the elements. Whether you're frequenting saltwater locations or pulling heavy loads, its robust construction ensures minimal wear and tear. This seal was built not just to fit but to last, helping keep your hubs in top shape for longer.
Finding parts for older or less common trailer models can be a headache, but this seal makes it easy. Originally crafted to replace hard-to-locate sizes, it ensures your hub functions with precision. For specialized or rare trailer setups, this double lip seal is often the go-to solution.
Trust this seal to safeguard your hubs and prep your trailer for future adventures. It's designed to provide resilient protection against both elemental exposure and mechanical stresses, ensuring that your components stay clean and unscathed. Whether stored or in use, its reliable barrier keeps everything just right.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at this double lip grease seal for the 3,700 pound marine hubs. Now this double lip grease seal is designed to fit the Dexter 3,700 pound marine axles. The dimensions on this, the critical dimension is the outer diameter, which would measure 2.561 inches. The inner diameter is gonna be 1.687 inches. And again, this is for a quantity of one double lip seal.
And the way you can tell it's a double lip seal, if you run your finger across it, you can feel the two edges and also on a double lip seal, if you pull the seal back a little bit, you'll be able to see the spring that goes around that outer lip. But that should do it for the review on this double lip grease seal, for the 3,700 pound marine hubs.
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!
Not much to say about a hub seal. It fits and the delivery was very fast.
Always great service with parts needed! Don’t go to the parts store when you can have exact components from etrailer!
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
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.
Top quality parts. Everything fit great!
Exactly what I needed and working well.
Thanks for following up with your customers. This is something you rarely get anywhere.
Larger seal fit the 1997 axle just perf ect
perfect fit!
Tech recommendation on research was incorrect. Seal is too large for new hub. Disappointing.
Call in did his best but etrailer does not carry the necessary product. They are generating a return.
The products we received from etrailer.com are all excellent. But what really makes this company great is the service! Amy was incredible to work with by email and by phone. She was helpful, quick and seemed to honestly care about our needs! How wonderful to have great products and service too! Thank you!
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.
Rachel was able to find what I needed and get it to me fast!
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.
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.
The right part at the right price when you need them.
A great business to do business with!
Everything was as it should be.
Great service!!
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.
Order was easy and received quickly and would have gratefully provided a 5 star rating until I opened the box.
I ordered 4 bearings clearly marked in their boxes. I also ordered 6 seals. These seal were in a zip lock bag without part numbers or any markings. I had to use a digital caliper to identify seals.
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.
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
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.
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
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.
Perfect fit
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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.