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  6. 10 Inch Wheel
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Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - L44649 Bearings

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

Item # 8-91-05UC1
Our Price: $67.75
Trailer Hubs and Drums
Orders above $99 qualify for Free Shipping
Shipping Weight: 6 lbs
Quantity: 
In Stock
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Hub is designed for use on trailer idler axles. Fits 2,000-lb 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 Axles - 4 on 4 - L44649 Bearings part number 8-91-05UC1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (198)
  • Q & A (0)
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  • Why etrailer?

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

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

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


Features:

  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, wheel bolts, and lug nuts are included
  • Sturdy iron construction
  • Hub and drum are made in the USA


Specs:

  • Application: 2,000-lb 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.


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: 1.500"
    • Outer diameter: 1.987"

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"


K08-091-91 Dexter Trailer Idler Hub Assembly for 2K Axle with Hardware - 4 on 4 - L44649 Bearings

Replaces 8-91-05UC1





Customer Satisfaction Score:


Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (198 Customer Reviews)

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

by:

Perfect replacement for my old ones with bad bearings. Could have replaced bearings and races, but for this price it wasn’t worth it.




by:

Purchase a pair of hubs and leaf springs plus assorted hardware for an old trailer restoration. The pricing was great and the quality and shipping were equally as good. The trailer is a 1999 Haulin which seen it's better days. Thanks to Etrailer, I was able to order everything I needed at one time.




by:

As usual etrailer.com comes through - needed new trailer bearing hubs and they offered an extensive list with all required specification listed. Then shipped them the next day...Good job!




by:

The hub seemed to be of very good quality. It shipped out and I received it very quickly. I have only one issue and that was the grease cap seemed a tad small and was extremely difficult to put on without damaging, but in all fairness that could be my lack of experience installing them rather than a product issue. before an after pictures attached




by:

I've attached some pics of the smoker I'm building using the hubs and spindles I purchased from you. Thanks for the quick shipping. Hubs and spindles fit perfect.




by:

The staff at e-trailer was very helpful and informative regarding their product. I learned several things about trailer equipment, in general from the staff, as well. I especially appreciated their efforts to assist me in solving a problem that arose several weeks after I had received the tires and wheels that I had ordered. The fix was to replace the existing hubs (4.5 inches) with new ones that were the standard 4.0 inch hubs.


Comments
I am still relying and using those products purchased from e-trailer.
John M - 02/20/2015


by:

I have a small 1200 lb Harbor Freight Tool trailer. The original bearings blew out and I had to replace the bearings, seal and hub. Went to our local Colorado Springs bearing supply house. I bought the hub, seal, bearings and cap for less that what they charged for one bearing, bought tires too - for less and better quality than what Discount Tire charged. Will be coming back


Comments
Hello, I also have a Harbor Freight trailer 1200 lb trailer. my hubs do not turn true. did you change just the bearing or the hubs too? I want to make sure these hubs fit this trailer?Jerry
-- comment by: Jerry M - 06/02/2015
Jerry M, In 2012 I replaced the spindle, bearings and tires on my Harbor Freight trailer. I had a local welder put the new spindles on the axle. Since this time, the trailer has remained true, no bearing issues, and no tire wear issues. Approx 2500 miles since then. Very happy with my decision to use eTrailer. Just wish they used FedEx and not UPS
-- comment by: Alex - 06/05/2015


by:

My old trailer hubs were made of cast iron and the cup portion was machined and impossible to keep smooth. The new hubs were machined for the cups and were already installed. Next time when I need to repack the hubs and inspect the bearings I will have the option of putting in new cups and cones making them new allover.
Thanks for a great product at a great price!!
Bill


Comments
With almost 1500 miles on the trailer I have had no issues with the hubs or bearings. I did learn to keep a log of the miles on my trailer so I can keep track when to do maintenance on the bearings.
Bill C - 09/23/2015


by:

Actually using this spindle and hub for a wind turbine. I have bought from etrailer over the years. Always satisfied. Good service and support. Good quality products like this Dexter spindle and hub. Quick delivery. Will come back!!!


Comments
Working well. I am very pleased with the Dexter products. I have used enough axles, hubs, bearings over the years to know it is worth it to seek out quality name brand components like Dexter.
Tom - 02/10/2015


by:

Received item very quickly. Noticed rust on the hub inner raceway. Contacted etrailer and a new part was sent immediately. Issued was handled as well as possible. I would purchase from etrailer again.


Comments
All terrific. Thanks for asking.
p w - 11/13/2015


by:

I recently purchased a set of hubs and bearings for my Jon Boat trailer. I purchased 4 on 4 hubs to put 4.80 X 12" tires on the trailer. Delivery was very fast. I received the hubs in two days.
However, the hubs and bearings I purchased would not fit the trailer axle.
I contacted etrailer.com and explained that the internal diameter of the bearings was much too small. The ID was 1" and the spindle of the axle was 1.25". They checked their inventory and could not find bearings with 1.25" ID. They agreed to allow me to return the hubs and bearings. However, after considerable looking I found that the axle is non-standard for this type of trailer and no one has hubs (4 on 4 for 4.80 X 12" tires) to fit the axle. I ended up purchasing a proper axle and installed the hubs I had purchased from etrailer.com. The people at etrailer.com were very considerate and helpful. I recommend them highly.




by:

The hubs and bearing fit my seadoo trailer great. The reason for one star down is that the grease seals were the wrong diameter to seal on my axle and seeing as how this was a Saturday and I was 125 miles from home (trying to get this trailer road ready) I had to buy seals from a local auto parts store at $8.00 each (prices suck when your out in the country without many choices).
Overall very pleased with the service and products.
I would definitely visit etrailer again for my trailer needs.




by:

The actual hub is of exceptional quality as it is a cast hub and is a giant improvement over the tubular steel w/welded on lug plate I took off. Was not impressed with the fact that the MFG did not pack these in a cardboard box and just wrapped all the parts around the hub with tape, paint job on the hub was not the greatest but did not matter to me as I repainted it a different color to compliment my new wheels, the dust cap is flimsy and easy to dent unless you cut a notch the width of a hacksaw blade 1/2 way to the stop ring but again did not matter to me for anything but to keep the paint off the bearing race as I used my old bearing buddies. The hub is of automotive quality and I give it a 10 for quality, cost, fit and my hat's off to the service at Etrailer.




by:

Ordering was fast and easy, shipping was quick. The Dexter hub kits were a good replacement for the boat trailer I put them on but the grease seals included in the hub kit were not the size I needed. I knew it when ordering so I just ordered the correct size seals at that time.
I've ordered from etrailer several times......never had an issue. Good customer service and support.




by:

I am converting an old Coleman camper into a one room toy haler (model airplanes). The bearings in the wheels were shot. This pair of new hubs and bearings were cheaper then I could get the old hubs rebuilt locally. Also the old hubs had break drums I no longer needed. So the new hubs were lighter. Hubs look great and worked great. The new dust covers were not so great but my old caps worked. Shipping was unbelievable fast. All good stuff.




by:

Parts fit perfectly and are made of good material, customer service with Nicole T was great . She was able to get me the right parts and super professional on helping me getting the right parts . Thank you


Comments
So far so good , working well . I lube the hubs once a year with marine grade lube
Hugo - 04/24/2021


by:

Hub itself is better quality than the original hub I replaced on the trailer. I am extremely happy with the hub and it rates excellent. However the bearings, grease seal and cap are very cheap parts made in china. They rate poor in my book. What do you expect from a $3.25 China bearing? I installed the dry bearing into the race to check fit and it had flat spots and wobbled as I spun the bearing. All four bearings in 2 kits all had the same problem. I purchased 4 SKS bearings from local parts store @ about $8.50 each. They spin perfectly in the race. I upgraded the grease seal to a double lip instead of the single lip in the kit. I installed the cap with a rubber mallet and block of wood but they are thin and dented badly before they seated. They may work if you had a large socket or a collar that fit around the lip but if you contact the center of the cap in any way it will dent badly. I will replace those with a bearing buddy or better quality cap someday. What is the point of an assembly if you have to replace the substandard parts within it? Cheap bearing and single lip grease seal may work fine with light duty local hauling but I plan to run several hundred miles and believe I need better bearings and seals to handle the long miles without trouble. I did a 220 mile test trip yesterday and the hubs did not build any heat at all after the parts upgrades. I am not telling people to not buy this hub because the hub is excelent quality but I am telling people to plan on upgrading the bearings, seals and caps if they need a top quality trouble free assembly. Now let me tell you the good news. The price of the assmebly from Etrailer is good enough that even after the upgrades, the price is better than other hubs I found locally or on the web. Buy it but upgade it for the best possible hub assembly. I plan to purchase one more assembly from etailer as a back up. I do not want to be several hundred miles from home without a replacement I can install on the road if needed. Best $35 "insurance" I ever spent.




by:

Everything was delivered worked out great Very very pleased with the service experience working with y'all Have already told to other people about you all




by:

I needed to replace the hubs on my jon boat trailer. Etrailer had the exact hubs I needed, in stock. The description in their shopping cart made it easy to order the right part. They shipped promptly and I received the order within a few days. The hubs were well packed. Their quality is first rate. They even included bearings, seals, races which came installed in the hubs saving me some time (thank you!), and lug nuts at a price that was less than the bearings and seals alone were going to cost me at a local auto supply store. A diagram on their web site showed me how to install the innards and I installed both hubs on my trailer in a little over an hour. Thanks again, Etrailer.




by:

1 the tech service is top notch, Ricky is great he was perfect at guiding me to the proper product

2 Shipping was super fast, less than 24 hours true they are 1 state away, however they were on it

3 Product, hubs seem fine (not installed yet, paint) however the bearings, grease cap and races are all Chinese ,the grease caps were bent , and too cheap to use, the bearing retainers on a couple of pieces were somewhat out of round, I ordered some American made ones , they rhyme with" bimikin" ...do this, keep off of the side of the road.




by:

I'm modifying an old boat trailer to transport my HD Fat Boy. The price of e-Trailer's wheel hubs was so reasonable, I opted to replace my old ones. I was in no real hurry to receive them but the new hubs arrived promptly anyway and they were just as represented in the catalog. Upon installation, I sensed the need for a special washer between the outer bearing and the hub nut. Calling the 800 number, I received a prompt and detailed explanation. I couldn't be more pleased, because these folks really focus on customer satisfaction. Pap.




by:

My trailer had different sized hub which had me confused when trying to replace the bearings. The new hub fit and worked great and now it matches the other side.




by:

Many of my old garden tractors came with 8" rims and sealed wheel bearings, these bearings and small tires on a 1000 lb machine made steering hard and wore out bearings. I am in the process of converting many of them to 4 bolt hubs like this cast iron Dexter hub. They make steering with two fingers possible, great product for a upgrade on an old garden tractor, especially if you are going to add a loader or front plow




by:

Ordered a set of these for my PWC trailer. Fit great but I should have ordered some codder pins. Don't forget those when replacing your bearings. Some of the paint came off, but no big deal. Bearings looked great and roll super smooth now.
Order some bearing buddy's with this too for any watercraft trailer. BB1980A




by:

Great response time and follow-up. I ordered this hub assembly on a Friday and received it on Tuesday. Everything needed was in the package to replace a damaged hub and bearings on a small trailer a friend and I are rebuilding. I did find damage to one of the bearings when I received it. I called etrailer, spoke to Ashley and another bearing was shipped that day. If I need any other trailer parts etrailer will get my business.



25
198
Show More Reviews

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

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    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...
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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...
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  • 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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  • 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.
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  • Correct Replacement for Dexter Idler Hub 8-91A
    The correct replacement for a Dexter Idler Hub 8-91A is the Dexter Trailer Idler Hub Assembly part # 8-91-05UC1 which we confirmed with Dexter directly. This is a complete assembly with hub, bearings, seal, lug nuts, and grease cap.
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  • Will Bearings from the 1970s Fit Current Trailer Hub Assemblies
    There have been changes here and there in the trailer industry since the 1970s. To be sure your old bearings will fit the newer components, like the Trailer Hub Assembly, # 8-91-05UC1, that you referenced, you will need to check the numbers on them. This drum accepts the following: Bearings (L44649 Inner/Outer), Races, Cap (1.986 inch outside diameter). The inner bearing dimension is 1.063 inches and the inner seal dimension is 1.5 inches. If your existing components match these dimensions,...
    view full answer...
  • Correct Replacement Hub for a Trailer with Dexter L44649 Bearings
    In order to determine which is the correct hub for your trailer you will need to take some measurements of the spindle using dial or digital calipers for the most accurate measurement. I have included a picture that shows what measurements are needed. The difference between bearing L44649 and L44643 is only 0.063 inches but for bearings, it is critical to get the correct size. This is also why you cannot measure using a ruler or tape measure. It has to be dial or digital calipers.
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    Image 1 for
  • Replacement Dexter Hub for 8-91A Hub
    If the hub that was on your trailer axle previously had 8-91A stamped on the back of it your spindle should require inner and outer bearings of # L44649 like you used. The part # 8-91-05UC1 SHOULD be an exact replacement. However we need to double check your grease seal measurement. Double check to make sure you don't have a 1.5 inner diameter seal with outer diameter of 1.9. You can also measure the spindle where the seal rides as well. The seal dimensions you mentioned are not ones...
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  • Replacement 4 on 4 Trailer Hub Assembly for 13 Inch Wheels
    We do have the Dexter Trailer Hub Assembly # 8-91-05UC1 that is compatible with 13 inch wheels. This has a 4 on 4 bolt pattern with a # L44649 inner and outer bearing. The hub assembly will fit 2,000 pound axles. I recommend pulling the hub on your trailer to confirm the bearing numbers. These will be stamped onto the bearings themselves but you can also measure the trailer spindle if they cannot be found. I have attached an image that shows the measurements needed. I have also attached...
    view full answer...
    Image 1 for
  • Trailer Hub Recommendation to Fit Spindle that Measures 1-1/16 inch with 4 on 4 Bolt Pattern
    Your spindle being 1-1/6 inch in diameter means you have the BTR spindle which is a very common size. For that you'd want the hub part # 8-91-05UC1 and you'd be set.
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  • Wheel Torque Spec for Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4
    The wheel torque spec for the Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 part # 8-91-05UC1 will be between 75-85 ft. lbs. It's pretty low on the scale of torque for wheels so completely fine.
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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.
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  • 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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  • 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...
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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...
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  • 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.
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  • 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.
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    Image 1 for
  • 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.
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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.
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  • 4 on 4 inch Bolt Pattern Hub Recommendation to Fit Trailer Spindle R104BT8
    Yes, the trailer hub part # 8-91-05UC1 does fit the spindle part # R104BT8. This hub is a 2,000 lb rated hub that has a 4 on 4 inch bolt pattern. For a coupler for your trailer that would take a 1-7/8 inch hitch ball you would want the part # E112000340. I attached a link to a page that has all of the 4 on 4 inch bolt pattern wheels we carry. Without knowing what size you are looking for it's hard to say for sure what would be your best option.
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  • Does a Trailer Wheel Center Hole and a Hub Bore have to Match
    The expert answer you have referenced is correct. A wheel that secures to the hub using bolts instead of lug nuts actually centers on the hub so the pilot hole of the wheel has to be exact. If it is too large the wheel can easily be off center and lead to all sorts of problems. Hub # 8-91-05UC1 has a center bore outer diameter of approximately 2.4375 inches; very close to 2.5 inches but not quite. If you use this hub and the wheels you are using have a pilot hole that is larger, it will...
    view full answer...
  • Grease Cap Recommendation for a Trailer Hub part # 34822BX
    Yes, the Grease Cap # F001518 that you referenced is the correct one to use as a replacement for the Trailer Hub part # 8-91-05UC1 that you also mentioned.
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  • Grease Cap Recommendation for Trailer Hub part # 34822BX
    The Grease Cap # F001518 is a confirmed fit for the hub part # 8-91-05UC1 that you have.
    view full answer...
  • Replacment Trailer Hub Recommendation for Hub Marked 8-259
    We do carry the Dexter hub part # 8-259-5UC1-EZ which matches the first part of the part number you mentioned. This is a 5 lug hub though so for a 4 lug hub version of the same hub you would want the # 8-91-05UC1.
    view full answer...


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