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  1. Trailer Bearings Races Seals Caps
  2. Redline
  3. Seals
  4. Oil Seals
  5. 4.50 Inch O.D.
  6. 3.13 Inch I.D.
Unitized Oil Seal - I.D. 3.125" / O.D. 4.500" for 10K to 16K Heavy Duty Axles - Qty 1
Redline

Unitized Oil Seal - I.D. 3.125" / O.D. 4.500" for 10K to 16K Heavy Duty Axles - Qty 1

Part Number: 10-56
In Stock
$61.32
Trailer Bearings Races Seals Caps
10-56 - 3.13 Inch I.D. Redline Seals
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Great Prices for the best trailer bearings races seals caps from Redline. Unitized Oil Seal - I.D. 3.125" / O.D. 4.500" for 10K to 16K Heavy Duty Axles - Qty 1 part number 10-56 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 - 10-56

  • Seals
  • Oil Seals
  • 4.50 Inch O.D.
  • 3.13 Inch I.D.
  • Redline


Features:

  • Replacement oil bath seal helps ensure optimal performance from bearings and races
  • Inner diameter 3.125"
  • Outer diameter 4.500"
  • Fits heavy-duty wheel ends with a 3.125" seal surface and 4.500" hub bore such as:
    • Dexter 10,000-lb Heavy Duty, 12,000-lb, and 15,000-lb axles
    • Hayes 10,000-lb Heavy Duty, 12,000-lb, and 15,000-lb axles
    • And select AL-KO and Rockwell 10,000- to 16,000-lb heavy-duty axle applications
  • 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 unitized oil seal matches the following common seal numbers:


Brand Part Number
Chicago Rawhide/SKF CR31281, 31244, 31281
Dexter 010-56-00, 1056, 7700077
Lippert 2023134020, 295924
National/Timken 370014A
NOK --
Transcom --

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.



10-56 Unitized Oil Seal - I.D. 3.125" / O.D. 4.500" for 10K to 16K Heavy Duty Axles - Quantity 1





Customer Satisfaction Score:

Ratings & Reviews

4.5

113 reviews
Review sort icon

by:



by:

The parts were delivered on time.



by:

Seals worked perfectly



by:

Great Service..



by:

Exactly what I was looking for and quic k!



by:



by:

Right on, fast shipment



by:



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by:

Easy to install. Keeps grease clean.



by:

Great Product



by:



by:

Fit perfectly and no leaks very good qu ality



by:

Part is correct but very poor packing quality for the shipment leaves me worried about damage.



by:

My parts were laying on my carport when I got back from feeding cows it looked like a train wreck. The boxes were torn apart an parts were scattered on the floor. The studs on the hubs were damaged an one of the bleeder valves on one caliper was snapped off in the housing. I was in shock an spent the rest of the day trying to fix them. I don’t no who abused my parts an tore all this up but I would like very much to beat the socks off them. That stuff cost me 2100 an some change. An I just got a bunch of junk that I’m trying to fix. The boxes were not not good enough to handle the weight. I wish I had got this from pa. Instead of etrailer.

Jenny N. profile picture

Jenny N.

11/11/2022

I sincerely apologize for the that the order was delivered to you. Customer Service will be in touch to assist you.



by:

Parts arrived in good shape! Help on the phone was great!



by:

great products. great pricing. fast sh ipping



by:

Usually you are completely on top of your game. This time my company is slightly disappointed in the timeframe of events. We stock checked all parts prior to ordering but then found out after the order was placed some were not in stock. Nobody reached out to let us know the parts were out of stock or asked if we would like to have the rest of the order shipped while waiting for the remaining out of stock items. Once we called we were able to get things moving however the shipment still was not expedited and took an additional extra five days. The products are always as expected. No issue with the quality of the parts



by:

this is a good seal easier to install than OE seal. this seals rubber outside ring does not hold up with the higher heat of Disk brakes the rubber is melting smoth then it slips and the oil runs out.



by:

I had to buy all new assemblies for my 40 foot trailer. the items were not only less expensive than anywhere else, but my mechanic was able to install them in one day.
I have not had any issues with them. I will buy products from etrailer from now on



by:

Unitized seals are the only way to go. The sealing surfaces do not move once installed. Technically they are a 2 piece seal, it rotates on itself. Worked great for 10K axles. Don't know make of axles, but they had pre 1989 Warner electric brakes on them



by:

Great place to purchase parts from. Great parts descriptions, Easy ordering, quick shipping, and the parts are correct!



by:

Working fine after one year.



by:

I ordered the wrong product no fault of etrailer, the return process is flawless. The refund was processed quickly and exactly as advertised. I will certainly be a returning customer and will recommend etrailer. Excellent customer service!

Huey C. profile picture

Huey C.

9/28/2015

Yes, these items are still performing as expected no issues what so ever.Thanks for checking in.



by:

When I order something please state that products are back ordered and are going to be delayed in shipping. I ordered with delivery date displayed and am now 4 days after and have one trailer down until all my parts show up.i have currently only received half my order


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See what our Experts say about this Redline Trailer Bearings Races Seals Caps

  • How Does Dexter 12k Oil Seal Install in Hub
    Typically for installing oil bath hub seals you can set a wood block across it and use a hammer to push it in evenly. For a Dexter 12k axle the correct seal would be the part # 10-56.
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  • Recommended Grease Conversion for Dexter 12k Oil Bath Axles
    The Dexter 12K oil bath axles can be changed over to grease without any issues. The oil does keep the bearings lubricated well, but there is a much higher risk of leaking which leads to a much higher risk of failure. I'd personally move to grease # L11390 and make sure it is packed well into the bearings using # PTW1218. This will allow you to use your same bearings and oil cap, but you will need to replace the seal once removed to pack the inner bearing. For that you can use # 10-56.
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  • Axle Hub That Uses Bearings JM511946 and JM205149, Race JM511910 and JM205110
    The Kodiak Disc Brake Kit # K2HR12A11-120DW is the only hub we have that uses the Inner Bearing # TRJM511946, Outer Bearing # JM205149, Inner Race # TRJM511910, and Outer Race # JM205110. Those bearings are what fits with an ALKO axles using #120 spindles. If that hub is what you are looking for you will need to purchase the Bearings # TRJM511946 and # JM205149 separately along with a Oil Seal # 10-56 for each hub.
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  • Dexter D120 Axle Replacement Parts
    Your Dexter D120 axle is rated for 11,999.80lbs, has a spring center measurement of 45.5" and track width of 74". It is an underslung axle that uses 3" wide 30" slipper springs rated at 6,000lbs each. The brakes are 12-1/4" x 5" electric brakes and the hub is an oil bath with 8 on 6.5" wheel bolt pattern. It was produced in March of 2000. Electric Trailer Brake Kit # AKEBRK-12 Dexter Trailer Idler Hub Assembly # 8-214-8UC1 Inner Hub Bearing # 3984 Inner Race # 3920 Outer Hub Bearing #...
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  • Oil Seal for Dexter 12K Heavy Duty Axle with Disc Brakes
    Yes, the Oil Seal part # 10-56 is exactly what you need for your Dexter 12K Heavy Duty axle with disc brakes. If you wanted to be absolutely certain you could measure the inner and outer diameter of the one you have now and it should be 3.125" and 4.500" respectively.
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  • Availability of Spindle and Hubs for 10,000 lb Trailer Axle
    As you may have noticed, the highest capacity spindle we carry is for a 7,000 lb axle, # TRU37FR. Your best bet is to source the spindles for a 10,000 lb axle through a local trailer shop or dealer. If are able to source the spindles, we do have hubs for 10,000 lb axles. I'll list them below: # 8-430-5UC3 - Dexter Hub Drum for 9K to 10K axles manufactured after July 2009 (for non ABS brakes) - uses inner bearing # 387A, outer bearing # 25580 and oil seal # 10-51 # K08-288-90 - Dexter...
    view full answer...
  • Disc Brake Assemblies For Changing A 12,000LB Dexter Axle To Hydraulic Disc Brakes
    We have the Kodiak Disc Brake Kit # K2R1258L12 that is designed to fit your 12,000lb Dexter axle. You will need to ensure that you have the Standard Duty 12,000lb axle as this kit will not fit if its a Heavy Duty 12,000lb axle. If you need help determining which you have please let me know your axle serial number that is on the information sticker for the axle or can also be found stamped in the axle tube on the rear of the axle on the passenger side. The Kodiak Disc Brake Kit # K2HR12A11-120DW...
    view full answer...
  • Bearings, Seal, & Electric Brakes For Big Tex 22GN 35+5 Gooseneck Trailer
    I was able to find the correct electric brakes, as well as oil seal (which is what I assume you were referring to by wheel seal), and also the bearings for your Big Tex 22GN 35+5 gooseneck trailer. I'll go ahead and list out the parts for you below. - Oil Seal # 10-56 - Replacement Trailer Hub Bearing # 395S & Race # 394A - Replacement Trailer Hub Bearing # 387A & Race # 382A - Dexter Electric Trailer Brake Assembly - Left Hand # 23-438 & Right Hand # 23-439
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  • Replacement Hub Seals for Dexter 12,000 lb Axle
    For your Dexter 12,000 lb axle the seal you are looking for based on my research is the # 10-56. It has an inner diameter of 3.125 inches and an outer diameter of 4.5 inches. This will work well for oil or grease. If you are needing the other seal for an oil bath, you would also want the Replacement Oil Cap Kit for 9,000-lb to 15,000-lb Dexter Axle # RG04-270 which comes with the cap, o-ring, and rubber plug.
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  • Recommended Replacement Oil Seal For A 2015 Big Tex 22GN Trailer
    From what I could find out, the Big Tex 22GN tandem axle trailers use 10,000 pound axles. However, this is the brand new ones so I highly recommend double checking this with Big Tex if you are unsure. They will need the VIN for your trailer, so have that near by. If they confirm this information or if you are already sure you have 10,000 pound axles, it does narrow the search down to 2 options. First is the # 10-51. This will have an inner diameter of 2.875" and an outer diameter of 3.880"....
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  • Disc Brake Kit That Fits Hayes/AL-KO 12,000 lb Axle With #120 Spindle
    Yes, your Hayes/AL-KO 12,000 lb axle with a #120 spindle is absolutely compatible with the brake kit you mentioned, the Kodiak Disc Brake Kit # K2HR12A11-120DW. This kit does require you get the bearings and seal separately, but comes with the races so you don't have to purchase those as well. What you will need are two each of the following: - Replacement Trailer Hub Bearing # TRJM511946 - Replacement Trailer Hub Bearing # JM205149 - Seal # 10-56
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  • Replacement Oil Seal Recommendation for Dexter 10,000 lb Trailer Axle
    The correct oil seal for a Dexter 10k trailer axle is the part # 10-56 that you referenced.
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  • Replacement Hub and Drum Assembly for 15,000 Pound Axles
    Although I do not have an option to retrofit your hubs I do have a solution. What I can offer is a complete replacement with the Dexter Trailer Hub and Drum Assembly for Heavy-Duty 15K Axles # DX78QR. If you're just looking for replacement races, bearings, and seals we have those available as well. This hub uses an 8 on 275 mm bolt pattern. It would also require switching to oil bath from the grease. In addition to the hub and drum assembly, or for replacement bearings and seals, you would...
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  • Replacement Oil Bath Seal Recommendation for Dexter 12k Axle
    For Dexter 12k oil bath hubs we have the seal part # 10-56 which would be exactly what you are looking for.
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  • How Far Do Trailer Hub Seals Need to be Installed Into Hub
    Basically you need the seal in the hub to sit either totally flush or slightly recessed and it will do it's job. Based on the picture you sent in your seal is properly seated.
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    Image 1 for
  • Determining Correct Oil Bath Seal For Dexter D100G 10000lb Axle
    Thank you for the picture! I reached out to my contact at Dexter and your axle is indeed a 10000lb axle, but with the axles age they were unable to confirm the oil seal or bearings used. With that said your axle being a general duty 10000lb axle should use the Oil seal # 10-51, but could use # 10-56. To determine the correct seal you will want to use digital calipers like # PTW80157 to precisely measure the spindle where the seal rides as shown in the included diagram, and the diameter...
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    Image 1 for
  • Dexter 12k Trailer Axle Calipers, Bolts, Brake Pads, Mounts and Hub Seal Replacement
    For Dexter 12k replacement brake calipers you'd want the part # BP18-045, for caliper bolts # BP18-105, for brake pads # BP04-395, for caliper mounts # KOD64FR, and for seals # 10-56.
    view full answer...
  • Replacement Bearings and Seals for Dexter Axle 10K Axle with Oil Bath
    I can give you a few different options but to know the exact bearings, races, and seals you need for an oil bath on your 10K Dexter Axle you will need to take some measurements on your spindle using a digital caliper or by finding the part numbers on these pieces. Attached is a photo to show you where the part numbers are located as well as where you will need to measure on your spindle. One set of common bearings/seals are inner bearing # 387A (2.250" inner diameter) with race # 382A,...
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    Image 1 for
  • Replacement Oil Seal for LCI 295924
    Yes we do, the correct oil seal you would need is the part # 10-56 which I verified has same dimensions as the 295924 that you have now.
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  • Bearings, Races and Oil Seals For Dexter 10K Axle On a 2018 Big Tex 22GN Trailer
    When you replace your Brakes # 23-450-451 it is a good idea to inspect the bearings at that time. The bearings and races will only need to be replaced if they are damaged or grooved. A visual inspection of the seal will tell you if it leaking or you notice any damage to the seal. Depending on if your Dexter 10K axle is a general duty or heavy duty will decide the bearings and oil seal you will need. If you are unsure you can send me the axle serial number that is stamped in the rear portion...
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  • Replacement Bearings and Seal for an Al-Ko 12K Axle
    Thanks for reaching out! In order to replace the bearings and seal for your 12K hub assembly you'll need to piece the following parts together as we currently (December 2022) don't have a whole bearing kit that includes all of the parts you're needing: Inner Bearing - # TRJM511946 Inner Race - # TRJM511910 Outer Bering - # JM205149 Outer Race - # JM205110 Oil Seal - # 10-56 (inner diameter of 3.125" and outer diameter of 4.500") These are the parts that come with the Kodiak Disc Brake...
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  • Troubleshooting Oil Leaking from 12,000 lb Axle
    For your 12,000 lb axles with Oil, you either have an oil cap or oil seal leaking. For the oil cap I recommend the Oil Cap Kit for 9K, 10K and 12K Axles # RG04-300. For the replacement oil seal, you most likely need # 10-56 which has an inner diameter of 3.125 and outer diameter of 4.500 inches. Finally, for your oil I recommend the Kodiak Synthetic Bearing Oil for Oil Bath Hubs - 8 oz Bottle # XLPROLUBE.
    view full answer...
  • Replacement Oil Seal for a Big Tex Trailer with 12K Dexter Axles
    Thanks for reaching out, Cole! It sounds like you're looking for the Oil Seal # 10-56 which has a 3.125" inner diameter and a 4.5" outer diameter. I recommend verifying the dimensions with what you have just to make sure everything matches up. If you find different dimensions please let me know and I'll be happy to further assist!
    view full answer...
  • Troubleshooting Oil Leaking from 10,000 Pound Axles
    You either have an oil cap or oil seal leaking on your 10,000 lb axles. I would start by checking the seal. For the replacement oil seal, you most likely need # 10-56 which has an inner diameter of 3.125 and outer diameter of 4.500 inches. I recommend measuring the inner diameter of your current seal to verify that this fits. For a replacement oil cap you will want to measure the outer diameter of your current oil cap. For example, if you have a 3.5" outer diameter you would need the...
    view full answer...


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