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  4. For 2000 lbs Axles
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  6. 10 Inch Wheel
  7. 12 Inch Wheel
Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 4 on 4 - L44649 Bearings

Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 4 on 4 - L44649 Bearings

Item # 8-91-05UC1-EZ
Our Price: $47.05
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8-91-05UC1-EZ - For 2000 lbs Axles Dexter Trailer Hubs and Drums
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Hub is designed for use on trailer idler axles. Fits 2,000-lb E-Z Lube axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included. Great Prices for the best trailer hubs and drums from Dexter. Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 4 on 4 - L44649 Bearings part number 8-91-05UC1-EZ can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (42)
  • Q & A (0)
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  • Why etrailer?

Dexter Trailer Hubs and Drums - 8-91-05UC1-EZ

  • 4 on 4 Inch
  • For 2000 lbs Axles
  • Hub
  • 10 Inch Wheel
  • 12 Inch Wheel
  • EZ Lube
  • L44649
  • L44649
  • Dexter

Hub is designed for use on trailer idler axles. Fits 2,000-lb E-Z Lube axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, wheel bolts, and lug nuts are included
  • E-Z Lube-compatible grease cap makes lubricating bearings fast and easy
    • Remove rubber plug to access zerk fitting on spindle - no need to disassemble hub
  • Sturdy iron construction
  • Hub and drum are made in the USA


  • Application: 2,000-lb E-Z Lube trailer axles with BTR spindles
  • Wheel size: 10" to 12"
  • Hub flange diameter: 5-1/2"
  • Bolt pattern: 4 on 4"
  • Grease cap flange diameter: 1.986"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,000 lbs

Exploded View

Note: Some axles rated at 2,000 lbs require a different seal and bearings. Be sure that the bearings in the hub being replaced have L44649 stamped on them. If the bearings have L44643 stamped on them, use #34822BX trailer hub.

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L44649 (1.063" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (included)
    • Inner race: L44610
    • Outer race: L44610
  • Grease seal (included): 10-9
    • Inner diameter: 1.5"
    • Outer diameter: 1.987"

E-Z Lube-Compatible Hub for Simple Lubrication

The grease cap on this hub is specially designed to work with your Dexter E-Z Lube axle to make lubricating bearings quick and easy. Just remove the plug on the grease cap, attach a grease gun to the zerk fitting on the end of the spindle, and inject the grease. It will flow easily to both inner and outer bearings. Not only does this make lubricating the bearings easy, but it also helps to prevent corrosion of the hub. This is because you can lubricate the bearings without the mess of taking apart the entire assembly.

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern Side

Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

008-091-93 Dexter Trailer Idler Hub Assembly for 2K Axle with Hardware - 4 on 4 - L44649 Bearings - EZ Lube

Replaces 8-91-05UC1-EZ

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 4 on 4 - L44649 Bearings - 8-91-05UC1-EZ

Average Customer Rating:  4.9 out of 5 stars   (42 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 2,000-lb E-Z Lube axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


The quality is excellent and the order was processed the same day and shipped. (Sweet!) Installed a grease zerk fitting to the hubs to take advantage of the EZ lube function.


Simply excellent
Easy installation


Works great with great service!


Rebuilding my boat trailer. So far have purchased a Dexter axle and hubs, and new springs from E-Trailer. Everything has exceeded my expectations. I am very happy with their products and would recommend their products to my friends.

Rolling along. No problems at all. Very happy.
John J - 11/16/2019


Installed easily and worked perfect.


Item took a month to be in stock.


great price, great product delivered fast. I could not find these parts in my area in stock anywhere. parts places here were happy to order the parts for me at 3X the cost of etrailer

I am happy to tell you I have not needed to use the hub. I purchased it as a spare for a camping trailer I own. I keep the hub in the trailer in case I have a problem on a trip. It is good quality, I hope to not need it, but I am happy I have it.
Anthony G - 06/27/2014


Upgraded my axle on 1973 Elgin trailer. The old axle used 2.75 shorty hubs that are hard to locate bearings and seals for. Once i installed the new axle, the Hubs from Etrailer fit like a glove right out of the box. No frustration and no worries. Something that could be said of the old set up. Time to go Fishing.


The hub assembly worked out great, the fast delivery saved my vacation at that time! The bearing kit I have not used yet, I purchased as a spare.. Not sure what else you offer. forward your web site info..


Brand new to camping, a little nervous for a first time long trip. Found the hub assembly at a very good price and bought it for just-in-case. A very good take along investment and takes almost no space. Quality and completeness just like the original.

Still havent needed my insurance it is money well spent
Tony - 09/02/2018


What a great experience. I wish all my online purchases went this well. You sure know how to do customer service right. Easy website, great fit, great price & rush shipping at no extra charge. I don't know how it could have been any easier. I'll definitely be back!

I couldnt be happier. The trailer is not something you should have to worry should just follow the van down the road. With the replacement of the hubs, it does so without giving it a second thought. Peace of mind is a wonderful thing!
Bob O - 10/20/2014


As always, ETRAILER has supplied excellent service and quality products. The parts were just what was needed and fit well. I can honestly recommend them to anyone.


The replacement bearings from Pep Boys cost as much as the new hub kit from E Trailer! Now my old boat trailer is as reliable as a new trailer. No worries towing my boat to Vermont from NJ. Great product, Thanks !!!


Excellent product. Perfect fit and the rubber grommets
Make for easy greasing! Would recommend and buy from E trailer again.


excellent products


I ordered hub and bearing parts for my trailer not knowing what I was doing. They got everything by my description. I ran into a problem getting the old parts off so it's not yet complete. Etrailer did it again and i got it fast. Thank you Etrailer for the great service.


Great products, Awesome service!! Fast, prompt order processing and delivery. Keep up the good work etrailer staff!!!!


Nice new hubs for my boat trailer. My only concern is using boxing tape instead of Saran wrap to hold everything together with the hubs. I had to clean the adhesive off the hubs before I could paint them. Other than that, excellent!


Excellent service received them in not even 2 days and they are great quality


the wheel hub and springs were easy to install and everything was a perfect match and works perfectly.


I was completely impressed with all the customer service I received. I don't recall ever having the hard work you folks did. I will make future orders with you..But one thing..the caps that go on the hub we're a nightmare...not sure what the deal was but I finally got them on. But more important..thank you very much for customer service.


The producthing is excellent quality. Didnot install it. I am carrying it as a spare


Haven't really tested them out yet but the look good fit right and wow did they get them here fast!

Great place to do business I'd say.



Good price and fit is perfect!


Everything still runs great after one year. No seizes no wobble. Good product!

Show More Reviews

See what our Experts say about this Dexter Trailer Hubs and Drums

  • Needing Dexter Hub # 8-91A
    The hub that you are looking for comes in the Trailer Hub Assembly # 8-91-05UC1 on our site. For the E-Z Lube version you would instead want the Trailer Hub Assembly # 8-91-05UC1-EZ. I contacted Dexter Axle and confirmed that these were the correct hubs for the 8-91A hub you are looking to purchase.
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  • Replacement Hubs for 2000 Dutchman Voyager Pop-Up Camper
    To select proper new hubs for your trailer you will need to confirm a few things: bolt pattern (see linked article), inner and outer bearing numbers (see linked photo) and axle weight rating (which should be indicated on a sticker or plate on the axle). You can then use the link provided to see our main page for hubs. Filters in the left margin will allow you to narrow the results based on your bearings, bolt pattern, wheel size and weight requirement, as well as whether or not you need...
    view full answer...
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  • Trailer Hub Compatible with Caliper Measurement for Camping Trailer Axle
    Based on your photo it does appear you have the BTR spindle that takes the 1.063 inch inner bearings. The fact that it isn't a digital caliper with the precision of that thousandth does leave slight ambiguity but I am still confident you will want the Dexter Trailer Idler Hub Assembly # 8-91-05UC1. You will not need the # 8-91-05UC1-EZ you asked about because you don't have the grease zerk in your spindles. To confirm fit, I recommend putting your caliper on the grease seal location...
    view full answer...
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  • What is Difference between Trailer Hubs 8-91-05UC1-EZ and 8-91-05UC1
    The difference is the dust cover/cap that is on either hub. The part # 8-91-05UC1-EZ comes with a dust cover that has a removable rubber plug that allows you to access the a zerk fitting to grease ez lube spindles. Whereas the part # 8-91-05UC1 comes with a solid cover without the removable plug. Other than that they are totally identical.
    view full answer...
  • Replacement Hubs for Harbor Freight Haulmaster # 90154 Trailer
    To determine if we have a wheel bearing that will be compatible, you will need to use a digital caliper and take some measurements of your existing spindles. If you reply with the B, C and D dimensions you find (as shown in the diagram I provided), I would be happy to try to find hubs that would be compatible with your bearings. In the past we have determined that the bearings of your trailer have non-standard numbers stamped on them. Normally with just the bearing number we can determine...
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  • Trailer Wheel for a Rear Rack on a 5th Wheel Trailer
    We have many different single wheel hubs, see link. To determine the trailer hub assembly for your rear rack on the fifth wheel, we will need to know what spindle is on the rack. The best way to make this determination is to remove the existing hub on the rack and acquire the part numbers off of the bearings and seal. You will also need to determine the bolt pattern of the original hub, or select a new wheel and tire combination that will work with the hub you choose. I posted a photo...
    view full answer...
  • What is the Overall Diameter of the Hub Assembly on Dexter Trailer Hub Assembly # 8-91-05UC1-EZ
    I went out to the warehouse and took a measurement of the whole hub assembly on the Dexter EZ Lube Trailer Hub Assembly, part # 8-91-05UC1-EZ. The overall diameter of the whole hub assembly is 5.45 inches. I included a picture with the measurement listed.
    view full answer...
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  • How to Pick Out a Replacement Trailer Hub
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
    view full answer...
    Image 1 for
  • Measuring Harbor Freight Trailer Spindle to Determine if there are Replacement Hubs or Bearings
    So the bearings that were included with the trailer kit are too small to fit on the spindle? It sounds like they gave you the wrong hubs or bearings and you would need to take it all back or contact the manufacturer for the correct ones. In order to determine if we have anything that will fit I would need to know the spindle measurements. I have included a picture that shows where to measure. The measurements should be taken using dial or digital calipers.
    view full answer...
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  • How Far Does Grease Seal Install into Dexter Trailer Hub
    When installing trailer hub grease seals you want to install them flush with the surface of the hub.
    view full answer...
  • What is the Overall Length of Trailer 2k Hub Assembly 8-91-05UC1-EZ
    I went out to the warehouse to measure trailer hub # 8-91-05UC1-EZ for you. The overall length is 4-3/16 inches.
    view full answer...
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  • Replacement Trailer Idler Hub For Dexter 8-91A Hub With 4 on 4" Lug Pattern
    You will need either the Dexter Trailer Idler Hub Assembly # 8-91-05UC1 that fits standard axles, or the Dexter E-Z Lube Trailer Idler Hub Assembly # 8-91-05UC1-EZ that fits axles that have the E-Z lube grease. Both hubs will include all new bearings, races, lug nuts, a grease cap and a grease seal. I recommend using LubriMatic LMX Industrial Strength Grease # L11390 to fill the bearings and the hubs thanks to its superior wear resistance in both hot and cold climates.
    view full answer...
  • How to Pick Out Replacement Hubs for a Trailer with 1980 Bearing Buddy
    The 1.980 Bearing Buddy is very common on hubs that have L44649 bearings inner and outer like the part # 8-259-5UC1-EZ for a 5 on 4-1/2 inch bolt pattern hub or part # 8-91-05UC1-EZ for a 4 on 4 inch bolt patter. However, your best option would be to remove the hubs and use a digital or dial caliper to measure where the bearings ride. If that dimension is 1.063 then either of the hubs I mentioned would work well for you as that would mean you have the BTR spindle.
    view full answer...
  • Dexter Torflex #9 1000-2200 lbs Axle Hub and Bearing Kit Replacements
    The current hub for your Torflex #9 axle uses the inner and outer bearings # L44649 with a grease seal that has a 1.500" inner diameter. You can find the bearing kit as part # BK1-150 on our site. For a replacement hub we have the part # 8-91-05UC1 for a standard spindle or part # 8-91-05UC1-EZ for E-Z Lube spindles. If you have brakes then you would want part # 8-173-16UC3 for a standard spindle or part # 8-173-16UC3-EZ for E-Z Lube spindles. All of these hub kits come with bearings and...
    view full answer...
  • How to Ensure New Hubs Will Fit on Existing Jayco Pop-Up Trailer Spindles
    An alternate hub can be installed on a spindle so long as the new one uses the same inner and outer bearing as the original. This is the way to ensure the new hubs fit properly on your spindles. Idler hub # 8-91-05UC1-EZ that you referenced has a 4-on-4 wheel bolt pattern and uses bearing # L44649 as both its inner and outer bearing. If your existing hubs use these same bearings then the hub will fit your spindle. Make sure your existing hubs use this same 4-on-4 wheel bolt pattern to...
    view full answer...
  • Replacement Trailer Grease Seal for Hub that has Inner and Outer Bearings L44649
    Based on the bearings you listed having you have a trailer hub like part # 8-91-05UC1-EZ which would take a grease seal of # 10-9
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  • Why Are There Multiple Hubs That Use The Same Bearings and Have The Same Bolt Pattern?
    You are correct that there are quite a few different idler hubs that use inner and outer bearing # L44649 and have the 4 on 4" bolt pattern you mentioned. The difference is there are a few different styles like galvanized, or if your axle does not have a zerk fitting for adding grease. I recommend going with the Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 4 on 4 - L44649 Bearings # 8-91-05UC1-EZ is for EZ lube spindles that have a zerk fitting so it includes a grease...
    view full answer...
  • Recommended Bearing Kit For 2,000 Lb Boat Trailer Axle
    The bearing kit you need for your trailer is part # BK1-100. This will include L44643 inner and outer bearings, and the seal with a 1.249 inside diameter. The kit also includes the races and a cotter pin. If you are replacing both sides of the trailer you will need 2 of these kits to complete the job. I have attached a helpful article that explains how to replace the hub kits you can check out.
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  • Replacement Idler Hubs for Lightweight Boat Trailer with 1.06 Inch Diameter Spindles
    With the spindle dimension you mentioned, it sounds like your existing hubs used # L44649 bearings. I'd recommend you check your existing bearings to confirm. If that's the case, you'd need the # 8-91-05UC1-EZ hub, which is compatible with a 1.06 diameter spindle. The surface of your spindle where the grease seal rides should measure 1.5 inches in diameter. You'd need a Bearing Buddy with a 1.980 diameter, like part # BB1980A-SS. Since you're planning on using the Bearing Buddies, you...
    view full answer...
  • Replacement 2,000lb Trailer Axle Spindles And Hubs For Short Spindles.
    You will need the BTR E-Z Lube Spindle # TRU44FR to replace your current spindle as there are no longer 4 on 4" hubs available for that size spindle. This will get you a better availability of parts in the future as well. The Dexter Trailer Idler Hub Assembly # 8-91-05UC1-EZ will include new bearings, races, grease seal, lug nuts and E-Z grease cap. The races are going to be pressed into the hub for a simple installation.
    view full answer...
    Image 1 for
  • Replacement 4 on 4 Hub Compatible With 13194 Grease Seal
    Yes, you can use the # 13194 grease seal with the Dexter Trailer Idler Hub Assembly # 8-91-05UC1-EZ. This hub assembly comes with a # 10-9 grease seal so you will need to order the # 13194 separately and replace it.
    view full answer...
  • How to Determine Spacing of Timbren Axle-Less Suspension for Tandem Axle Boat Trailer
    You'll want an absolute minimum of 1 inch between the tires when the suspension is under full load, but I'd want more than that. I'd shoot for around 3-5 or so inches for safety. The actual spacing will depend on which tire size you use. Say for instance you used a 145/80-12 tire. This tire has a 21.3 inch diameter (the diameter of the tire will be listed in the product description). Add 3 inches to the tire diameter, and you'd get your center to center axle spacing. This will work no...
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  • What is the Replacement Wheel Hub Needed on the Axle of a 1996 Jayco 1207 Popup Trailer
    We have a hub that will fit your 1996 Jayco popup trailer. The Dexter Trailer Hub assembly, # 8-91-05UC1-EZ, that you referenced will work on your trailer axle. This hub uses the # L44649 bearings and has a 4 bolt lugs. Measuring the current hubs bolt pattern will tell you for sure if this hub will work for you. I have attached an article that will explain how to find what your wheel bolt pattern is on your current hub. If you do not have grease zerks at the end your axle spindles, then...
    view full answer...
  • Using the Timbren Axle-Less Systems To Upgrade From Single Axle to Tandem Axle on 4,000 Lb Trailer
    The Timbren Axle-Less Trailer Suspension Systems are excellent options for many reasons with one being that is makes for upgrading from a single to tandem axle setup much easier in regards to both installation difficulty and parts needed. In order to choose the correct system, you'd need a total capacity that meets the total weight of the trailer minus the tongue. The Timbren Axle-Less Trailer Suspension Systems part # ASR2000S01 which has a 2,000 lbs weight capacity would have you covered...
    view full answer...

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