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Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal
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Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal

Part Number: BK3-100
In Stock
$30.94
Trailer Bearings Races Seals Caps
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Great Prices for the best trailer bearings races seals caps from etrailer. Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal part number BK3-100 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer Trailer Bearings Races Seals Caps - BK3-100

  • Bearings
  • Standard Bearings
  • Bearing Kits
  • 6000 lbs Axle
  • Bearing 15123 and 25580
  • etrailer
  • Race 25520 and 15245


Trailer Axle Bearing Kit

Outer BearingInner BearingSealSeal I.D.Outer Race O.D.Inner Race O.D.
151232558010-362.250"2.441"3.265"

Bearing Kit Includes:

  • One Inner Bearing and Race
  • One Outer Bearing and Race
  • Grease Seal
  • Cotter Pin


BK3-100 Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal

Similar to K71-719-00




California residents: click here


Video of Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal

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




Video Transcript for Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal Review

Hi, I'm Steven with etrailer.com. Thank you for joining me today. Today, we're gonna take a look at the bearing kit for 6,000 pound axles, part number BK3-100. Now, this kit's gonna include everything shown here on the table. It includes the inner bearing and the race, the outer bearing and the race, and it also includes the double-lip grease seal, and cotter pin. Now, the bearings they use in this kit are made from a high quality tapered roller bearing design, and it's gonna be ready for high-speed use.

The grease seal is a double-lip seal, which is gonna retain grease a lot better inside the hub and give you better protection against moisture, road grime, that kind of stuff versus your single-lip seals. And this seal does have an overall diameter of 3.376 and an inside diameter of 2.250. Now, it's gonna include your inner bearing, part number, 25580, and the matching inner race, 25520. It's also gonna include the outer bearing, part number, 15123, along with the matching outer race, part number, 15245. And like I said, it's gonna include the cotter pin and the matching seal, part number, 10-36.

That's gonna do it today for our look at our bearing kit for 6,000 pound axles. Thank you so much for joining me. This is Steven, etrailer.com.

Customer Satisfaction Score:

Ratings & Reviews

4.7

3370 reviews

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Good fit seems like good quality time will tell thanks rj



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quick service.Thanks



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Fast shipping, great selection.



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Fast delivery and great price Thanks



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

  • Replacement Bearing Recommendation for Dexter 6,000 lb Axles
    We have two bearing kits that could fit for your Dexter 6,000 lb axles. The difference is the seal size. The part # BK3-100 is the kit that has the correct bearings and a seal with an inner diameter of 2.25 inches. This is most likely what you need. The other options is the part # BK3-110 which has a grease seal with an inner diameter of 2.125 inches. You would need to measure the outer diameter of the spindle your seal rides on to determine which kit you'd need.
    view full answer...
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  • Bearing Kit for 6,000 lb Dexter Axle
    Hey Scott! The correct bearing kit for your Dexter 6k axle is the Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal # BK3-100. If you want the Dexter version it is the # DX26ER. What kind of trailer do you have?
    view full answer...
  • Looking For Bearings And Seal For 2024 Grand Design Reflection With Curt 6,000 lb Axles
    Hello Karen, thanks for reaching out. We should have the hub you need, but I will need a bit more information from you first. There are a few possible bearing combinations for the 6K axles, and we want to be sure you are getting the right thing. The main piece of info I will need is the part number for your hub. If you remove a wheel, you should see a number cast on the front of the brake drum. I should be able to use this number to pull up your exact bearing sizes and seal size. Reply...
    view full answer...
  • What Is The Thickness Of The 10-36 Grease Seal
    Hello Paul. The 10-36 grease seal part # GS-2250DL is .375 or 3/8 of an inch thick. It has a 2.250" ID and a 3.376" OD.
    view full answer...
  • Replacement Bearings and Seals for 2023 Jayco Eagle HT 31MB
    Hey Casey! You did send it in, we're just a bit behind. This is something we run into with pretty much any 5,200-7,000 lb axle. Unfortunately, I can't quite see the serial number in the picture of your axle tag. If you can email me another picture, or tell me the S/N, I can have Dexter identify it. The only other way to find out is to remove the hub and measure the existing grease seal or spindle where it sits.
    view full answer...
  • What Bearings and Seals For Dexter 5100lb Axle
    Hey Michael, Thanks for the part number of your Dexter Axle. Per your build sheet you'll need bearing kit # BK3-100. This includes the inner bearings # 25580, outer bearings # 15123, and grease seals # 10-36.
    view full answer...
  • Recommended Disc Brake Assembly to Replace UFP Brakes on Boat Trailer
    Would you be able to tell me what you mean by alternatives or are you looking for the entire assembly?
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  • Will the Demco Surge Brake Actuator DM8104311 Work on a 2010 EZ Loader Boat Trailer?
    Yes, it will Connor! The Demco Surge Brake Actuator item # DM8104311 will indeed replace your EZ Loader boat trailer's UFP actuator. It works with disc brakes, has 2-5/16" coupler, and includes an electric lockout for backing. The zinc coated finish on the Demco item # DM8104311 will protect it from corrosion and provide strong rust resistance. The EZ latch coupler will ensure an easy secure connection. It's made of a nylon resin so it's extremely durable and will never seize up. What...
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  • Replacement Bearing Kit for a 2025 Grand Design Reflection150 270BN
    Hey Jay. I checked with Grand Design and your Curt 4,400 lbs axles have higher capacity C65517 hubs on them. The Bearing Kit item # BK3-100 is going to be the correct one. The outer bearing race included with this kit has a 2.441" outer diameter. The Bearing Kit item # BK3-100 includes both the inner and outer bearings and races, along with a 10-36 grease seal, and a new cotter pin. It's sold individually so you'll need one per hub. Are you doing some maintenance on your trailer or...
    view full answer...
  • Which Bearing And Seal Kit Is Needed For 2022 Cougar 368MBI Travel Trailer With Dexter 6K Axles?
    Hey there Mark! That's a great idea to stock up on some spare parts. Most people don't have the foresight like that. You will need either Bearing Kit, 15123/25580 Bearings, GS-2125DL Seal # BK3-110 or Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal # BK3-100 depending on if you have the 2.125" or 2.250" inner diameter seal. You likely have the 2.250" I.D. seal but you'd need to check the part number or measure the seal to verify, unfortunately. The only difference in the kits is the grease...
    view full answer...
  • Replacement Straight Axle Spindles For the Lippert Axle On a 2019 K-Z Sportsmen Classic 180TH
    I have an option that may work out for you as we do not have any axles that will have the same hub face dimensions as your Lippert axle in your 2019 K-Z Sportsmen Classic 180TH. You can have your drop spindle that is currently welded on your Lippert axle cut off and replace it with a #42 E-Z Lube Spindle w/ Flange # TRU37FR straight spindle. This spindle has the same dimensions as your current Lippert axle so you will still be able to use your current hubs and brakes. You can get the...
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  • Timbren Axle-Less Suspension System Compatible with Jeep for Matching Trailer
    For the Timbren Axle-Less kit compatible with the bolt pattern of 5 on 5 like a Jeep, you would need the 2,200 lb capacity # ASR1THDS03. The spindles on the Timbren system are a little larger than their thru-axle counterparts, so the 3,500 lbs # ASR3500S06 will only fit larger hubs that won't have the bolt pattern you seek. Using # ASR1THDS03, you can then use the Trailer Idler Hub Assembly for 3,500-lb E-Z Lube Axles - 5 on 5 # AKIHUB-550-35-EZ-K or the Trailer Hub and Drum Assembly...
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  • Replacement Bearings and Seals for 2007 Montana 3700RL
    Hey Braxton! Since you have 6k axles I can tell you you either need Bearing Kit # BK3-100 (2.25" inner diameter grease seal) or # BK3-110 (2.125" ID grease seal). For the Timken you looked at it is either the # TMK42VR (2.25") or # TMK82VR (2.125"). I don't have a way to look this up using your VIN, but if you can give me the manufacturer and serial number off of your axle tag I can verify the right grease seal size. You could also pull the hubs and measure.
    view full answer...
  • Replacement Idler Hub Bearing Kit for an 82655 Trailer Hub
    How's it going, Kaleb! To replace the bearings and seal in your 82655 hub you'll need the Bearing Kit # BK3-100. Was there some damage or something like that from when you went to replace the PEER POS2253337TBN seal we talked about previously?
    view full answer...
  • What Bearings, Races, and Seal do I Need for My 2023 Airstream Basecamp 20 with 4,300lbs Axle?
    Hello Wallace, Looks like you got the right one ordered for your 2023 Airstream Basecamp 20, the Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal # BK3-100 which is commonly for 6K axles, but your 4,300 pound axle has the beefier spindles. I am sorry for the delay in response, received quite the spike in questions and are getting caught up. If you need a return label please let me know.
    view full answer...
  • Looking For Bearing Kit For 2024 Open Range 5th Wheel
    Hello again, Camilo. We will undoubtedly have a bearing kit for you, but I am afraid there is no way to look up your 5th wheel to know exactly what bearings you will need. Bearings are fitted by the axle weight capacity, and sadly this is not listed online. Do you know the weight capacity of each axle? If you look under the camper at the axle tube there should be a sticker that shows the axle capacity. Based on the 13,500 lb GVWR I am guessing your probably have something like two 7,000...
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  • Avaialbility Of Replacement Controller For Dometic AC Unit
    Hey Tyler. The part number 3313191.000 comes back as a Dometic controller. Sadly, we do not offer a replacement for this. Your best bet would be to contact Dometic directly and see if they can provide one. Otherwise, the only solution I can offer you would be a whole new AC unit.
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  • What Bearings and Seal do I Need for My Dexter 6,000 Pound Axle?
    Hello Brandon, Dexter was not able to make out the axle tag, can you please respond back to the email with a new picture of the axle tag?
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  • Recommended Disc Brake Conversion for 7,000 lb Dexter Axles
    On your 2018 Montana 3791 RD, with Dexter 7K axles, we do have the parts but not in a kit for axles that large. I recommend the Kodiak Disc Brake Kit - 13" Hub/Rotor - 7,000 lbs # K2HR712D along with Bearing Kit # BK3-100. I recommend using grease # L11390 and cap # F001520 instead of doing the oil bath simply because if a seal fails you can melt your bearings and cause more issues than what grease would allow. Then for the electrical aspects, I recommend the HydraStar Electric-Hydraulic...
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  • Replacement Bearing Kit Recommendations for a 1972 Airstream Overlander
    If you have standard size axles that you are installing the Electric Trailer Brake Kit # AKEBRK-7-SA on then you can choose from the following options: 5,200 lb Axle - Kit # BK3-310 (Grease Seal 2.125" ID) or Kit # BK3-300 (Grease Seal 2.250" ID) 6,000 lb Axle - Kit # BK3-110 (Grease Seal 2.125" ID) or Kit # BK3-100 (Grease Seal 2.250" ID) 7,200 lb Axle - Kit # BK3-210 (Grease Seal 2.125" ID) or Kit # BK3-200 (Grease Seal 2.250" ID) Since you do have an older Airstream Overlander you...
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  • Replacement Bearings and Grease Seal for Dexter 4,400 lb Axle
    Hey Sam! Thanks for the picture of your axle tag. The correct bearing kit is the 15123/ 25580 Bearings, 10-36 Seal # BK3-100. If you want the equivalent from Dexter it is the # DX26ER. Are you getting your trailer ready for an upcoming trip?
    view full answer...
  • Looking For Wheel Bearing And Seal Kit For 2024 Brinkley Z2900 With Lippert 7K Axles
    Hello Darren, thanks for reaching out. The Lippert 7K axles use a standard bearing combination but there are two possible seal sizes. We have two bearing kits for the Lippert 7K axles part # BK3-100 and the part # BK3-110. The difference is the inner diameter of the grease seal. The part # BK3-100 comes with seal that has inner diameter of 2.25 inches and the part # BK3-110 comes with seal that is 2.125 inches. I do suggest that you remove a hub and measure the ID of the seal or measure...
    view full answer...
  • Recommended Disc Brake Components for Nuwa Hitchhiker 5th Wheel Trailer Conversion
    For your Nuwa Hitchhiker 5th wheel, I recommend you start with the Kodiak 12" Hub-and-Rotor Assembly - 6 on 5-1/2 # KHR12D. For this assembly you will need the bearing kit # Bearing Kit # BK3-100. For your grease caps you will need # RG04-060 which come in sets. For your calipers, I recommend the Kodiak Disc Brake Caliper - Dacromet# KDBC225DAC along with the mounting bracket # KCMB12D and brake pads # K225CP. For your brake lines and your Electric Over Hydraulic actuator, I recommend...
    view full answer...
  • Replacement Timken Parts for 25580/15123 Bearings and 10-36 Seal
    Hey Jason, thanks for reaching out! We have the Bearing Kit # BK3-100 which comes with everything you're needing, but these are made overseas. In order to get a set of Timken you'll need to order the following: - 25580 # TMK44FR - 25520 # TMK76FR - 15123 # TMK34FR - 15245 # TMK46FR - Grease Seal # TMK98ZR Is there anything else you're needing to work on/replace?
    view full answer...


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