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  1. Trailer Hubs and Drums
  2. Dexter
  3. 8 on 6-1/2 Inch
  4. For 5200 lbs Axles
  5. For 6000 lbs Axles
  6. For 7000 lbs Axles
Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb Axles - 12" - 8 on 6-1/2

Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb Axles - 12" - 8 on 6-1/2

Item # 8-219-4UC3
Our Price: $235.91
You Save: $29.41
Trailer Hubs and Drums
Shipping Weight: 39 lbs
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Hub-and-drum assembly fits 5,200-lb to 7,000-lb axles with spindles that require a 2-1/8" grease seal. Inner bearing (25580) and race, outer bearing (14125A) 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 Hub and Drum Assembly for 5,200-lb to 7,000-lb Axles - 12" - 8 on 6-1/2 part number 8-219-4UC3 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (51)
  • Q & A (0)
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Dexter Trailer Hubs and Drums - 8-219-4UC3

  • 8 on 6-1/2 Inch
  • For 5200 lbs Axles
  • For 6000 lbs Axles
  • For 7000 lbs Axles
  • Hub with Integrated Drum
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Standard
  • 1/2 Inch Stud
  • 14125A
  • 25580
  • Dexter

Hub-and-drum assembly fits 5,200-lb to 7,000-lb axles with spindles that require a 2-1/8" grease seal. Inner bearing (25580) and race, outer bearing (14125A) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


  • Trailer hub-and-drum assembly provides surface area for brake shoes to grip when brake is activated
    • Compatible with electric and hydraulic drum brakes
  • Sturdy iron construction
  • Bearings, races, grease seal, grease cap, wheel bolts, and lug nuts are included
  • Hub and drum are made in the USA


  • Application: 5,200-lb to 7,000-lb trailer axles that require 2-1/8" inner diameter grease seal
    • Also fits spindles that take a 2-1/4" inner diameter grease seal - requires RG06-070 (sold separately)
  • Drum dimensions: 12" diameter x 2" wide
    • Works with 12" brake assembly
  • Bolt pattern: 8 on 6-1/2"
  • Wheel stud diameter: 1/2"
  • Grease cap flange diameter: 2.44"
  • Weight capacity: 3,500 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 14125A (1.25" inner diameter)
  • Races (included)
    • Inner race: 25520
    • Outer race: 14276
  • Grease seal (included): GS-2125DL
    • Inner diameter: 2.125"
    • Outer diameter: 3.376"

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"

K08-219-90 Dexter 12" Hub and Drum Assembly for 5.2K to 7K Axle with Hardware - 8 on 6-1/2

Replaces 8-219-4UC3

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb Axles - 12" - 8 on 6-1/2 - 8-219-4UC3

Average Customer Rating:  4.9 out of 5 stars   (51 Customer Reviews)

Hub-and-drum assembly fits 5,200-lb to 7,000-lb axles with spindles that require a 2-1/8" grease seal. Inner bearing (25580) and race, outer bearing (14125A) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


Promptly shipped and received. Minor problem, the bearings, nuts, dust cover and seal were all just thrown loose in the box with the hub resulting in the seal being bent and unuseable. No big deal. Otherwise great service.

Etrailer Expert

Jenny N.


Oh! We can replace the seal for you. I will have our Customer Service team reach out.


The product from etrailer was easy to order, came on a timely basis and fit perfectly. I happily will use etrailer again for my future needs.


Received exactly what I had ordered. Appears to be a quality product with all the parts needed to change the hub.


Everything fit and works as it should.


I had to replace a hub on my fifth wheel and as usual I ordered it from etrailer. It arrived on time and was a perfect fit. Price was great too. Thanks etrailer!



No problem with this hub since replacement.


Seems good. Right fit, did what it's supposed to. Haven't driven down the road yet.


Top shelf products, excellent selection, awesome prices. Converting a tandem trailer to electric brakes, these guys had it all from bolt on coupler to the new drums! Love these guys!


Good quality. Just what the Doctor Mechanic myself ordered. Recommend these drumsto any one that has a trailer with electric brakes. Thumbs Up


etrailer was awesome. My new drums arrived faster than expected and was exactly what I needed. I haven’t installed them yet but are identical to what I am replacing.
Thanks etrailer.


Got exactly what I ordered. Great quality. After I installed them (online videos were a great help), they work perfect. Definitely a good experience to order the right part and received them in a timely matter.


Everything came in as promised. Had a bearing that was smashed during shippment. Looked like hub hit it. Called for replacement and it was shipped same day. Excellent customer service. This is the 2nd time I have ordered from etrailer and it will not be my last. Thanks

by: is the best online company I have found to buy quality trailer parts. This Dexter part is high quality. You can depend on Dexter quality. etrailer shipped my order immediately.
You can't go wrong with the quality and service from etrailer.


Yea its working flawlessly. Have had several loads lately with no issues


Received hubs within a week of ordering. Contained all parts for a complete changeout. Would recommend both these hubs and

Pete B.


what drum and hub assy do i need to convert my house tralier axles to use regular tires and wheels? im having trouble finding tires for them. bearing, outside 1.25, inside 1.75, 2 brake drum, 5 or 6 holes wheel.

Patrick B.


Most mobile home axles are built with an odd sized spindle that do not have any available hubs with a traditional trailer wheel bolt pattern. The only want to be sure is to either get the bearing numbers off the old bearings or to measure the spindle diameters with a dial or digital caliper, at least to the 1/100th. Bearing numbers is by far the easiest. Check out the link to the spindle below. There is a diagram that shows the measurements that you will need to take in order to positively determine whether or not a hub is available.


Easy lookup, detailed information, and lightning fast processing and shipping made this transaction very satisfying. All this, combined with great prices guarantees my future purchases. Thank you!


I am very pleased with etrailer. The product was as I ordered and I was very pleased with the delivery time. I received my shipment within two days. Now all I need is warm dry weather in order to complete my project. Thanks etrailer, I will order more product soon.
Ken T.


Have on a trailer for a year carrying heavy loads, work great


Received the hubs 2nd day air, great product on time!


It was the right hub and went on perfec tly.


Very good product brakes work great


Right product, easy to find and order and quick service. Love the suggestions on related products so they are easy to order as well.


The customer service was great, my order was shipped the same day I ordered it and the free shipping had it at my door in 3 days.


As described fair pricing and delivered as said.


They haven't installed it yet but the products look awsome!!


Outstanding OEM parts.

Show More Reviews

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

  • Will 1/2 Inch Wheel Studs Fit Dexter Hub 8-219-4UC3-EZ?
    If you measured the stud size on your hub and drum assembly and they measured 1/2 inch then they may work with the Dexter Trailer Hub and Drum Assembly # 8-219-4UC3-EZ, which also uses 1/2 inch wheel studs. The fact they are both 1/2" does not necessarily mean they will thread onto the new studs as they may be different thread pitches. Keep in mind those are for E-Z Lube axles so if you did not have those you could also use the Dexter Trailer Hub and Drum Assembly # 8-219-4UC3. You will...
    view full answer...
  • Lug Nuts Shearing off Hub and Drum of 7,000 lb Dexter Axle
    I can only make a guess and can't know for certain, but generally speaking, the two main reasons that lug nuts shear off is that they are overtightened - though you can rule that out if you are sure they were torqued to the manufacturer's specs - or that your wheels have elongated, wider holes. This would make the wheel have excessive movement on the lug nut and cause enough vibration for it to shear off. If you need to replace the hub and drum on your 7,000 lb Dexter axle you can use...
    view full answer...
  • Do New Trailer Hubs Have to Have Matching Lug Nut Size as Old Hubs
    The lug nuts are designed to thread on the studs of the hubs installed on the trailer. So if the new hubs have smaller lug nuts but they match what the hub is designed for you would be totally fine.
    view full answer...
  • Replacement Axle Recommendation for a Mobile Home Trailer
    Mobile home axles are designed for one time use and because of that we don't offer replacement hubs that will fit them since the spindles are usually very unique. Best option would be to go with a new axle. I attached a page that has all of the replacement axles we offer. You would want to go with the ones that are the closest in dimension and weight capacity as what you currently have/need.
    view full answer...
  • How to Pick Out a Hub and Drum to Go to a Different Bolt Pattern
    Yes, you can go to a hub with a different bolt pattern as long as you match everything up. You will need to make sure the bearing numbers are the same and that your brake assemblies are the same size. The Trailer Hub and Drum Assembly # 8-219-4UC3 that you referenced uses inner bearing number 25580, outer bearing number 14125A and is designed for 12 inch by 2 inch brake assemblies. You should note that going to a hub with a higher towing capacity does not necessarily give you more overall...
    view full answer...
  • How to Determine Correct Hub & Drum For Heavy Trailer
    I can point you in the right direction in regards to determining the correct hub and drum for your heavy 14,250 lb trailer, but we would not have any way of identifying the exact hub for your 1995 Trailmax. So there are a number of things you'll need to know to get the right hub; first, you need to know the weight rating of your axle, and also what bearings your current hub has. You will need to take apart your current hub assembly and look at the bearings themselves; wipe away the grease...
    view full answer...
    Image 1 for
  • Tightness Recommendation for Castle Nut on Trailer Hub
    I'd go on the tighter side of what you mentioned where there's no play yet you can still spin the wheel several times on one push. You might put your hand on the hub to feel if it's getting overly warm next trip you take but I believe that's the best spot you'll have.
    view full answer...
  • Is Dexter Trailer Hub # 8-219-4UC3 Sold Individually or in Pairs
    The Dexter trailer hub and drum # 8-219-4UC3 that you referenced is sold individually so if you needed a pair you'd need to order two of them.
    view full answer...
  • What is Minimum Pilot Diameter on Trailer Wheel to Fit 5,200 lb Hub
    The pilot hole on a wheel would have to be 4.75 inches or larger for fitting a 5,200 lb hub and drum assembly like # 8-219-4UC3.
    view full answer...
  • Should Trailer Bearings Spin on the Spindle they are Installed On
    When installed properly the portion of the bearing that attaches to the spindle should not spin. Only the outer portion should be spinning. It's pretty easy to overtighten a spindle nut since they don't have to be very tight so that would be the most likely situation. When our installers replace a trailer hub, there isn't a set torque spec used when tightening the spindle nut. The hub is placed on the spindle, making sure the inner and outer bearings are correctly seated. The spindle...
    view full answer...
  • How to Correct for Extreme Stress and Bearing Damage on 5200-Lb Torsion Axle on Tandem Trailer
    If your axle castle nuts are backing off and shearing the cotter pin then this extreme force could be coming from one or more possible causes. I suggest you check your rear axle tire treads for signs of uneven wear. If you notice more wear on the inside edges of the tires this could indicate any of several possible root causes, an overloaded axle, damaged axle or bent spindles. Any one of these conditions could result in wheel misalignment. This condition could in turn lead to excessive...
    view full answer...
  • Proper Way to Tighten Trailer Spindle of Castle Nut
    After you've packed the bearings and assembled everything, carefully slide the hub assembly onto the spindle and install the outer bearing. Install the spindle and tang washer and run the spindle nut down finger tight, then rotate the hub back and forth then rock the hub side to side to make sure everything is seated properly. This will have had provided more room on the spindle, so run down the spindle nut with your fingers a bit more. The hub should spin freely, with a bit of brake lining...
    view full answer...
  • What Size Wheel Center Hole Will Fit on Trailer Hub 8-219-4UC3
    The pilot hole on a wheel would have to be 4.75 inches or larger. It can be larger because this hub uses lug nuts to secure and center the wheel on the hub (lugcentric). If it just had holes for wheel bolts (hubcentric) then the pilot hole would have to be exact.
    view full answer...
  • The Correct Amount to Tighten the Nut on an Axle Spindle
    There is one way to properly tighten a spindle when installing axle parts. Ensure that all parts are full seated. Tighten the nut on end of spindle until there is resistance when you try to turn the wheel, then back up nut the least amount possible in order to install cotter pin - usually 1/8 turn. I have attached an article which throughly explains the reassemble of spindle parts, and a video which (at the 5 minute mark) shows a spindle nut being tightened and turned back.
    view full answer...
  • How to Pick Out a 8 Lug Hub to fit a 5,200 lb Dexter Axle
    It is hard for me to say with absolute certainty, but most likely the part # 8-219-4UC3 would work for your 5,200 lb Dexter axle since this hub is designed to fit most 5,200 lb Dexter axles. But the only way to verify this would be to either pull your hubs and measure the spindles or get the bearing numbers. This is especially true since you said your outer bearing is a different number than what the # 8-219-4UC3 has. A lot of times the 4,800 and 5,200 axles are the same with the only...
    view full answer...
    Image 1 for
  • Outer Diameter of Center Bore Trailer Hub and Drum Assembly 5,200-lb to 7,000-lb Axles - 8 on 6-1/2
    The pilot hole on a wheel would have to be 4.75 inches or larger for hub and drum assembly # 8-219-4UC3. It can be larger because this hub uses lug nuts to secure and center the wheel on the hub (lugcentric). If it just had holes for wheel bolts (hubcentric) then the pilot hole would have to be exact.
    view full answer...
  • How to Determine Which Replacement Hubs are Needed for a Kaufman Car Hauler
    In order to determine which hub you will need for your Kaufman car hauler you will need to get some information from the hub of your trailer. The first thing you are going to need to do is remove the hub and give me the bearing numbers that are stamped on the inner and outer bearings of the hub. The next thing you will need to give me is the bolt pattern from the wheels/hubs you are replacing. You will also need to know what size studs are on your hubs. I attached an FAQ article on how...
    view full answer...
  • Will a Dexter Trailer Hub Fit on a Lippert Trailer Axle
    Many times Dexter hubs will fit on a Lippert axle, but Lippert does have a few axles out there with special spindle sizes. Every Lippert axle comes with a tag or plate on the axle that gives a serial number or NV number. If you can give me that number, I can tell you what parts you will need. Otherwise, if you could not find that tag, you can simply select a hub by matching the bearing and grease seal part numbers from your existing hub. The part numbers for the bearings are usually stamped...
    view full answer...
    Image 1 for
  • Replacement Hub and Drum assembly for ALKO 8480
    From what I have found, the ALKO hub and drum assembly you have is for 7,000 lb axles. I believe the Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb Axles - 12" - 8 on 6-1/2 # 8-219-4UC3 will work as a replacement. This has the same bolt pattern and uses the same outer bearing you have now with an inner diameter of 1.25". Your 21334TB grease seal has an inner diameter of 2.125" so that also matches the grease seal that comes with this assembly. The only piece of information...
    view full answer...
    Image 1 for
  • Will Dexter Hub # K08-285-96 fit a Lippert axle # nv2422811
    Yes, the Dexter Hub # K08-285-96 will fit on a Lippert axle # nv2422811. They are both rated for 8K and the bearings and grease seal match up between them. The axle is actually rated at 7K, but that is because it comes with 7K brakes. It is actually an 8K axle and 8K hub.
    view full answer...
  • What Studs Does the Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb E-Z Lube Axles Use
    The Dexter Trailer Hub and Drum Assembly for 5,200-lb to 7,000-lb E-Z Lube Axles - 12" - 8 on 6-1/2 # 8-219-4UC3-EZ uses 1/2" wheel studs like what you currently have. The wheel bolts and lug nuts are included with this assembly.
    view full answer...
  • Does Dexter E-Z Lube Hub and Drum Assembly 8-219-4UC3-EZ Require Drum Turning Before Installation
    The new hub/drum assemblies like # 8-219-4UC3-EZ that we sell are ready to install. They do not require turning. Cast into the hub you will find the drum's maximum re-bore diameter. If you do in the future have these drums turned be sure to remain within that spec.
    view full answer...
  • Lug Nut Torque Recommendation for Dexter Hub # 8-219-4UC3-EZ to 17.5 inch Wheel
    95 ft lbs would be good for torquing the lug nuts of the trailer hub part # 8-219-4UC3-EZ to a 17.5 inch diameter trailer wheel. The acceptable range would be 90 to 120 ft lbs for your setup.
    view full answer...
  • Is There 5,200 lb Trailer Hub that has 8 Lug Bolt Pattern
    Yes, for 5,200 standard trailer axles we have the hub part # 8-219-4UC3-EZ which is a fit for 5,200 lb axles and has the bolt pattern of 8 on 6-1/2 inches like you said you need.
    view full answer...

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