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  1. Trailer Hubs and Drums
  2. Dexter Axle
  3. 5 on 4-1/2 Inch
  4. For 2000 lbs Axles
  5. Hub
  6. 10 Inch Wheel
  7. 12 Inch Wheel
Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2

Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2

Item # 34822545BX
Our Price: $56.66
Trailer Hubs and Drums
This item qualifies for Free Shipping
Shipping Weight: 7 lbs
In Stock
34822545BX - 10 Inch Wheel,12 Inch Wheel Dexter Axle Trailer Hubs and Drums
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Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BT8 spindles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, wheel bolts, and lug nuts included. For 10" to 12" wheels. Great Prices for the best trailer hubs and drums from Dexter Axle. Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 part number 34822545BX can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (50)
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Dexter Axle Trailer Hubs and Drums - 34822545BX

  • 5 on 4-1/2 Inch
  • For 2000 lbs Axles
  • Hub
  • 10 Inch Wheel
  • 12 Inch Wheel
  • Standard
  • 1/2 Inch Stud
  • L44643
  • L44643
  • Dexter Axle

Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BT8 spindles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, wheel bolts, and lug nuts included. For 10" to 12" wheels.


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


  • Application: 2,000-lb trailer axles with BT8 spindles
  • Wheel size: 10" to 12"
  • Bolt pattern: 5 on 4-1/2"
  • Grease cap flange diameter: 1.986"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,000 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L44643 (1" inner diameter)
    • Outer bearing: L44643 (1" inner diameter)
  • Races (included)
    • Inner race: L44610
    • Outer race: L44610
  • Grease seal (included): 34823
    • Inner diameter: 1.249"
    • Outer diameter: 1.983"

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"

H34822545BX Dexter Trailer Idler Hub Assembly for 2K Axle with Hardware - 5 on 4-1/2 - L44643 Bearings

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - 34822545BX

Average Customer Rating:  4.7 out of 5 stars   (50 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BT8 spindles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, wheel bolts, and lug nuts included. For 10" to 12" wheels.


There was a problem with the initial order I received and it was promptly handled by the polite and helpful customer assistant. These parts worked great for a single bike takedown trailer.


Hubs not made by dexter and not made in US. No reason to pay extra for these over other Chinese hubs. Would have returned but etrailer was slow to ship and I was leaving for a trip and couldn't wait.

It looks like you may have been sent the wrong part by mistake. I am sending this along to our customer service team to make sure that they reach out to you.
-- Etrailer Expert Brooke M - 06/21/2022


Ordered two hubs, only one arrived. Second tracking number says it was never picked up. Now I have to wait 8 days for an investigation before I can get a replacement part. Upgraded the shipping so I could receive and work on trailer during the holiday break. No blame, just stating what happened.


I wanted to change from four lug wheels and tires to five lug type on my boat trailer. Towed trailer,loaded with fishing gear,fuel tanks, extra motor. and batteries from central Pennsylvania to Fort Peck, Montana and back. The trip was uneventful. Other than the was GREAT!
Your new hubs made my trip successful.


Good product fair price. Packaged well. No missing parts.


Product as great and eTrailer was prompt with the delivery.


I was pleased with the quality and timely shipping.


I have a bent part. I received it that way.


The hub was very easy to install. The only problem I had was installing the wheel bearing hubs. It took many tries to get them on.


Great price, fast shipping, and customer service is professional. I will continue buying from etrailer. Thanks for your business.


Great service and products!


Works great 1 year later. No issues here. Would buy again.


Perfect for the job


these are great hubs. my trailer had tiny 4 bolt hubs and wheels and these fit perfect on the 1" spindles and allowed me to run a much taller tire. even comes pregreased with plenty of grease


I have ordered from e-trailer twice. Both times they provide excellent service! Parts arrived amazingly fast!! One order had a damaged part, I called and got a very nice sales rep. Parts were replaced FREE. I will deffinatly order from them again. I ordered hubs, wheel and tires, and light kit for my boat trailer. All parts are good Quality.


The hub I ordered for my trailer worked perfectly!!!!!! The customer service is unreal, from fast shipping to constant checks(personal emails) to see if item had arrvied on time, truly a professional company that puts their customers above all. I never write reviews put this company definetly earned it, Thanks and I will be back!!!


I initially ordered a pair of hubs from another online retailer That I has used prior and whom had mine "in stock". They didn't. After 5 days of no shipping info, they notified me they were back ordered. I cancelled the order.

I ordered a pair of these hubs from on 6/2, George notified me on 6/3 that they shipped and I received them on 6/6. That's customer service.

Price, availability and delivery. Every online retailer should strive for this level of attention..


Perfect fit. Bad old trailer bearings? Buy the complete hub!


Hubs went on without any trouble. Only tricky part was to get the caps seated into the hub to trap the grease. Haven't used the trailer yet, but don't anticipate any problems. Shipping was awesome. I ordered with standard shipping and the box was on my porch the next afternoon.


I am just starting on a restoration of a 40 plus year old motorcycle sidecar and the hub and wheel that I ordered are perfect for this project. I will try to send pictures on completion, probably a few months out.


Put on trailer brand new again hubs bearings all good fast shipping will deal with you again thanks


Not only is the product exactly what we needed (the dust caps are a little on the lightweight side) but Matthew was extremely helpful in getting me the parts I needed to fix my trailer!


absolutely the best customer service ( George) and the fastest transit times - have been using them for years - never a problem


Fit great on old Seadoo trailer. Easy i nstall.


Great product and service, would buy ag ain

Show More Reviews

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

  • How to Pick Out Replacement Bearings/Bearing Kit for 2004 Triton XLT
    To pick out bearings for a trailer hub you will need to remove one of the hubs so that you can remove the bearings and get the numbers off of them. Or, you can measure the spindle where the bearings and seal ride so that we can pick you out the correct bearings that would fit the spindle. With either info mentioned I can get you the correct parts you'd need.
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  • One Trailer Brake Assembly Heats Up But Stops When Brakes Are Disconnected
    From what you describe, it sounds as if you might have a combination of two separate issues happening. I suspect that you have one trailer brake assembly that's adjusted a bit further out than the others, combined with either a faulty brake controller that's putting out voltage when it shouldn't or corrosion that has built up in the trailer connector allowing power from a different circuit such as the 12-v supply to the trailer to bridge to the brake circuit. An out of adjustment brake...
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  • Picking Out Replacement Trailer Hub for 2006 Karavan 1250
    If you can confirm that your trailer has 2,000 lb axles yes, the # 34822545BX is the correct replacement hub. We don't have a way to look that up so you'd want to check your axles for a tag that lists capacity or the VIN plate will have that as well. Based on your weight being 1,250 lbs I'd be surprised if this wasn't the correct fit though. Or if you pull off your old hub and measure the spindle where the bearings ride and find that it's 1 inch in diameter there that would confirm it as well.
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  • At What Point Does Heat On Bearings and Hubs Become Excessive
    It looks like you were referring to a previous question regarding excessive heat on the hubs and brakes during travel. If you were getting over 200 degrees that would be a bad sign. But typically if all of the hubs are the same temperature you're good and it's only really an issue if one of the hubs is hotter than others. There are cases where on long trips you'll run 150-160 degrees without blinking an eye on a hot day. You will want to make sure that you're regularly greasing your bearings...
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  • Troubleshooting Oil Bath Hub Running Hot
    If that hub has sufficient oil in it then a hub running hot means that either the brake kit isn't adjusted properly or there is something wrong internally like a damaged bearing that is grinding metal instead of just rolling on it. To check the brakes (if you have them) you should be able to freely spin the wheel when it's suspended but you should have some drag. If the brakes check out then you need to pull the hub and inspect the internal components of it. Look for any abnormal wear...
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  • Correct Replacement Hub for Malone LowMax Trailer
    The correct replacement hub for the Malone LowMax Trailer is the Dexter Trailer Idler Hub Assembly for 2,000-lb Axles part # 34822545BX. This hub is pre-greased so it will be easy to install in a pinch on the side of the road if needed.
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  • How Tight Should Spindle Nut On Dexter 7000lb Axle Be?
    When you say "Slack" what exactly do you mean? It is normal and required for the bearings to have some slack to allow the wheel to turn without too much friction, and you should be able to rock the hub back and forth and feel slight movement. When installing the hub you should tighten the spindle nut all the way and then back it off one to two notches back. That sounds like how you have it so it should be about right. Just make sure you are not having an abnormal amount of hub movement. I...
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  • Availability of Replacement Hubs for a Harbor Freight Trailer
    Harbor Freight trailers do not typically use standard hubs or spindles. In most of the situations that we have encountered, we do not carry a hub that uses the same bearings and seal that Harbor Freight uses. The best way to determine if we have a hub that will fit your trailer would be to find the bearing and grease seal part numbers and search for a hub that uses the same bearings and seal. I have attached a photo that shows where the part numbers are located. If you do not have the...
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    Image 1 for
  • Why Would Trailer Hub Get Hot When Leaking Grease/Oil
    If the oil or grease of your hub is leaking out then the heat you have found is related to that. Without proper lubrication the hub is getting hot. If this is a grease hub and you put oil in it then that would be why it would be leaking out. Or you overfilled the hub with grease and in doing so blew out the seal. This is a common problem with people who use Bearing Buddies. Either way you need to replace the seal and repack the hub with grease properly. I attached a video that demonstrates...
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  • Troubleshooting Overheating Hubs on a Trailer With New Bearings and Grease
    Hubs will heat up when driving, but if it feels like they are getting too hot, then you will want to look at a few things on your hub. My guess is that the spindle nut is too tight and the added stress on the bearings is overheating the bearings and hub and could be causing damage to the bearings. When you install the castle nut you will want to tighten the spindle nut while turning the hub. When there is a slight bind on the bearing, the parts are seated correctly. Back the nut off...
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  • Should Spindle Be Replaced After Wheel Came Off Weekend Warrior Tri-Axle Trailer
    Now would be a really good time to have the entire system inspected by a qualified shop. If the lug nuts were not tightened properly that could cause the wheel to come off the trailer. The bearing should have been inspected for obvious signs of wear or damage as well as the spindle. If the hub came off with the wheel and tire I imagine the threads on the spindle have been damaged. I would have someone inspect the entire system and replace or repair anything that is worn or damaged. Since...
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  • Recommendation for Replacement 5 Lug Hubs
    It sounds like you are looking to replace your hubs. I have attached a link to our trailer hubs where you can use the filters on the page to choose the bolt pattern of your hub, your wheel size, your axle capacity, and since most of our hubs also include the bearings, you will need to make this selection as well. The easiest way to determine the correct replacement bearings for your trailer is to remove the hub and find the part numbers that will be stamped on the inner and outer bearings....
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  • Hubs and Wheel Bearings Keep Working Loose Causing Play in the Wheels
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  • What Limits the Speed of a Trailer
    What limits the speed a trailer can go is the tires. Trailer tires are only rated to go 65 miles per hour. If you are traveling fast enough that bearings in good condition begin to damage themselves the trailer tires are probably already in the process of failing. Trailer tires are built with a thicker sidewall, to handle vertical loads, that get hot enough to fail when you exceed 65 miles per hour. Going to a larger diameter wheel/tire will not give you the ability to exceed the speed...
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  • How to Pick Out Hubs for a 1979 Jayco Popup Camper
    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, since you are looking for 5 on 4-1/2 inch bolt pattern this is covered. 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 or use a dial caliper to get exact measurements of the spindle....
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  • Trailer Hub Assembly Must be Put Together and Packed with Grease
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  • Hub Recommendation for Spindle that is 1 inch in Diameter and has 5 on 4-1/2 inch Bolt Pattern
    What you listed is compatible with a BT8 2,000 lb axle. That means that the part # 34822545BX would be what you need.
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  • Troubleshooting Trailer Hub that Gets Warms
    If the bearings are good and the hub is greased properly that basically limits the issue to the brakes. How much drag can you feel as you turn the wheel by hand with the trailer jacked up in the air? It should feel like a light drag and turn easily. Do all hubs get warm or just the one? To see how to manually adjust trailer brake assemblies check out the video I attached, fast-forward to the 4:35 mark of the video. Basically you will adjust the brakes out so that there is a slight but...
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  • Troubleshooting Trailer Hub/Drum that Gets Hot Ater New Bearings and Assembly Adjustment
    If the adjustment and bearings are good you need to go in and check out what the inside of the hub drum looks like as it may have a wear issue that's causing heat to build up. While in there you'd want to check out everything in the brake assemblies too to make sure there's nothing broken or worn out as well.
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  • Spindle Nut Torque For Installing Trailer Hub that Won't Cause Hub to Heat Up
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  • Troubleshooting Trailer Brake Assembly that Is Hotter Than Others and Dragging Brake
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  • Where to Measure on Trailer Spindle to Pick Out Replacement Hub
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    view full answer...
    Image 1 for
  • Are the Bearings and Seal for the Dexter Trailer Idler Hub Dexter Brand
    The included bearings and seal with the Dexter Trailer Idler Hub Assembly, # 34822545BX, were included with the hub from Dexter. Therefore, the bearings and seal are Dexter approved parts. Dexter does not manufacturer their bearings and seals for there hubs, but use the highest quality products from vendors with their products.
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