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  1. Trailer Hubs and Drums
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  3. 4 on 4 Inch
  4. For 2200 lbs Axles
  5. 10 Inch Wheel
  6. 12 Inch Wheel
  7. 13 Inch Wheel
Dexter Trailer Hub and Drum Assembly for 2,200-lb Axles - 7" Diameter - 4 on 4

Dexter Trailer Hub and Drum Assembly for 2,200-lb Axles - 7" Diameter - 4 on 4

Item # 8-173-16UC3
Our Price: $132.42
Trailer Hubs and Drums
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This hub-and-drum assembly fits 2,200-lb axles with BTR spindles. Compatible with electric and hydraulic brakes. 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 Hub and Drum Assembly for 2,200-lb Axles - 7" Diameter - 4 on 4 part number 8-173-16UC3 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (35)
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Dexter Trailer Hubs and Drums - 8-173-16UC3

  • 4 on 4 Inch
  • For 2200 lbs Axles
  • 10 Inch Wheel
  • 12 Inch Wheel
  • 13 Inch Wheel
  • Hub with Integrated Drum
  • 1/2 Inch Stud
  • Standard
  • L44649
  • L44649
  • Dexter

This hub-and-drum assembly fits 2,200-lb axles with BTR spindles. Compatible with electric and hydraulic brakes. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


Features:

  • 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


Specs:

  • Application: 2,200-lb trailer axles with BTR spindles
  • Wheel size: 10" to 13"
  • Drum dimensions: 7" diameter x 1-1/4" wide
    • Works with 7" x 1-1/4" brake assembly
  • Bolt pattern: 4 on 4"
  • Grease cap flange diameter: 1.98"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,100 lbs


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"

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"


008-173-91 Dexter Trailer Hub and Drum Assembly - 2,200-lb Axles - 4 on 4

Replaces 8-173-16UC3 and HD701BUC3





Customer Satisfaction Score:


Customer Reviews

Dexter Trailer Hub and Drum Assembly for 2,200-lb Axles - 7" Diameter - 4 on 4 - 8-173-16UC3

Average Customer Rating:  4.0 out of 5 stars   (35 Customer Reviews)

This hub-and-drum assembly fits 2,200-lb axles with BTR spindles. Compatible with electric and hydraulic brakes. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.

by:

The Drums were loose in the box and damaged the seals as the drums were free to move around while being shipped.Not a good packaging job.I should of checked the seals for damage before I got my mobile RV mechanic out to do the work but the bearings and seals were all wrapped up to the ends of the drums and I assumed incorrectly that they were ok. I had to run out to the nearest parts store and luckily they had seals that fit but they only came with a new set of bearings $XX. Also no washer or shim was provided with this kit so had to get that as well. The drums and bearings were fine as were the brakes.
Lesson learned to always check all your parts beforehand.

Etrailer Expert

Jenny N.

2/10/2023

I am sorry that you needed to make an extra trip to replace the damaged bearings and missing hardware. I will have Customer Service reach out to you about the order.



by:

These are to replace old 7 1/4" brakes on an older pop up camper frame that I built a small camper on. Looks they will work perfectly with the new Dexter 7" brake assembles I have.



by:

The brake drums rubbed on the kind of backing plates on my trailer. I think my axles was an older stable. I was able to modify them to make things work though. They worked great and have made several trips with my brake system working great!



by:

Erica at etrailer.com was extremely helpful in helping me select the right breaks for my trailer application. The ship time was incredibly fast installation was a breeze and customer service is top notch!!!



by:

Purchased as part of all parts required to upgrade a 1996 Jayco to electric brakes. Very pleased with quality of parts and results. Battery still fully charged after winter in storage!



by:

I'll let you know when I install it?



by:

Very well detailed order recap. I like how the videos and parts details are shown with the current order. Well done.

Joel D.

8/21/2023

These delivered as advertised I am glad I bought them here as the video showed exactly what I needed to know



by:

Was really wanting to go 5 on 4 1/4, Went together OK, still need to road test. Shipping was awful, loos parts damaged and missing

Etrailer Expert

Jenny N.

8/13/2022

I hate to see that parts arrived damaged out of the hub assembly. I will have out customer service team reach out.



by:

A year ago I bought these as part of an overhaul for a 1976 coleman pop-up camper. Many parts on it were obsolete, so I had to change the drums along with the entire suspension. I am pleased to say they work great with my electronic brakes! We've taken our refurbished trailer on 2 long-distance trips (including one into the mountains) and the brakes and drums perform very well!



by:

Everything in one package taped to the hub. I would have offered more protection for shipping to the bearing and seal then just taping it to the hub but it did arrive unscathed. Quality seemed good. Went together easy. Lost the first dust cap on my first trip around the block for a brake adjustment test. Lost the second on the second trip (about 10 miles). I ordered replacement dust caps and the tap on tool. Not sure if I didn't have them on well enough or if there is a product problem there. I have done a lot of these and never had a problem before.



by:

First of all, the product description on the eTrailer website was very detailed and very complete. With all the different axle sizes and types out there, it was nice to have the specs to make sure I was ordering the right part.

I like the shipping tracker. It's easy to use, and I knew where the shipment was, and when to expect delivery. That was nice, because my hub arrived a day later than I thought it would. (When you order on Good Friday, on Easter weekend, 3 day shipping might take an extra day. I should have expected that.)

I thought that rebuilding the existing hubs would be a good idea. And it was. But while driving the new bearing race into place, I let the race get crooked, and I cracked the hub.

The old hub uses bolts to mount the wheel. The new hub has studs and lug nuts, which makes tire changing much easier. The new hub comes with the race pre-installed, just have to apply grease and tap in the rear seal. very easy.

All things concidered, I'm very happy with the entire process, and will probably order a roof rack for my pop up camper from etrailer in the near future.



by:

The first 2 drum and hub combos i got were machined crooked and the second set had to be turned on a drum lathe before the brakes would work properly. I lost time and money being broke down and paying to have the drums checked and turned at a machine shop. Maybe made in China? The people at e trailer were helpfull and prompt no complaints there, just the quality of product.



by:

I had to replace one hub on my pop-up camper and decided I should do both wheels. The parts I ordered came very quickly (3 days), without having to pay extra for quick shipping. The parts matched perfectly and the job went very smoothly. My only complaint is that one of the hub covers/grease seals was dented and bent. It looks like it was damaged during shipment as it was not packaged separately but instead was taped to the outside of the hub. Luckily one of my old seals was reusable and everything worked out.



by:

The hubs are great, easy install and perfect fit. Can't wait to try out them and the new electric brakes I installed.



by:

INSTALLED AS DIRECTED BY INSTRUCTIONS-- APPRECIATE YOUR DELIVERY ETC. WILL BE USING YOUR SITE FOR FUTURE NEEDS-- GUARANTEED--

THANKS TO YOUR SERVICE

Larry S.

12/28/2014

DID THE JOB FOR OUR TRAILER-



by:

I received my parts, packed the bearings, installed the brakes and backing plates assemblies. installed the drum and hubs, adjusted the brakes and on the road we go. It took 1 hour to do both sides and they fit perfect. Thanks etrailer.com



by:

Not sure if these hubs are going to work. Spent a hour today installing and found small size differences between old and new ones. I thought kit was supposed to include everything, but it was missing cotter pins and bearing washers. This was not my first purchase from etrailer, but I could of used more information on hub dimensions. I was replacing surge brake hubs for a 1992 Jayco popup. I would suggest adding links to mechanical drawings with guidance on what and where to measure to get the best product.



by:

Electric Brake kit for trailer this time.
The parts are very acceptable and the service is supreme.
Couldn't get any better service anywhere. I've bought a lot of items from etrailer for a couple years now. I have had great experiences with each and every order.



by:

Ordered 4 parts as part of an update to my tandem axle trailer. The correct lip seal is included with 3 and one has the wrong lip seal(too wide and wrong ID). Compatibility information with other parts ordered (brake assemblies in this order) is valuable.



by:

Fit my 1997 Starcraft Starflyer 1021 popup camper. Only problem was that it came with the wrong bearings (came with L44643 instead of L44649). Had to call and now I have to wait another week to do the job.



by:

Exactly what I needed for conversion from hydraulic to electric brake system on 1994 Jayco King pop-up camper.



by:

Seal is bent a bit. I can still use it.



by:

We received our order in record time. The representative was most helpful, and we received the item that we needed.



by:

corect part, good quality.



by:

all parts were there, and works OK.


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35
Show More Reviews

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

  • Electric Brake Kit For Two 2,200 lb Axles On Aluma Trailer
    Since you have two 2,200 lb trailer brakes you should get two of the Dexter Electric Trailer Brake Kits # K23-103-104-00. These are good for 10", 12" and 13" wheels. This kit requires a mounting flange bolt pattern of 4" x 4" and are 7 x 1-1/4 drum brakes. A 4" x 4" E-Z Lube Axle # 8-173-16UC3-EZ or standard axle hub # 8-173-16UC3 will work but make sure that your hubs use the # L44649 inner and outer bearing to make sure these hubs are correct for your Aluma Trailer. All the hardware is...
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  • 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...
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  • Parts Needed to Add Electric Drum Brakes to 1996 Pop Up Camper
    Unless your axle is in bad shape or it uses a weird set of bearings and seal you shouldn't need to replace it just to swap your hydraulic brakes over to electric.We actually have everything that you need for this conversion. To replace your older size 20.5x8-10 tires/wheels I recommend the Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel # AM3H410 if you need the tire and wheel or part # AM1HP54 for just the tire (which is the current size listing of your tire size). This has a load...
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  • Replacement Wheel Studs for Trailer Hub part # 8-173-16UC3
    The trailer hub part # 8-173-16UC3 uses 1/2 inch diameter 2 inch long wheel studs like the part # RG03-060.
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  • Added Surge Brakes to a Pontoon Boat Trailer with 4 on 4 Bolt Pattern
    We have two different drums available for your 4 on 4 setup, but in order to determine which is correct, we need to get your old bearing numbers. Your hubs will have two bearings, an inner and an outer. When we determine what the bearing numbers are we can find the right hub/drum. The numbers will be stamped on the bearings themselves. You only need to disassemble one side of the trailer. I have added a link to a video that covers removing seals and bearings from a trailer hub. If your...
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  • Replacement Hub Recommendation for Hub that Had L44649 Bearings
    We carry the hub you would need for your trailer, but they do not have the bearings pre-installed. If it's an idler hub with a 4 on 4 inch bolt pattern you would need part # 8-91-05UC1-EZ. If it's a brake hub you would need part # 8-173-16UC3. For a 5 on 4-1/2 inch bolt pattern idler hub you would want the part # 8-259-5UC1-EZ, or for a brake hub part # 8-257-5UC3-EZ. I attached a help article link and install video for replacing hubs for you to check out as well.
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  • Parts Needed to Add Electric Drum Brakes to a 2,200 Pound Pop-up Camper
    Your trailer likely uses L44649 inner and outer bearings for the hub. You could pull off a hub and check the numbers on the sides of the bearings to be sure. They will have to come off anyway to install the brakes. For L44649 inner and outer bearings and a 4 on 4 bolt pattern you can use # 8-173-16UC3 or, if you have EZ lube axles with the grease fitting at the ends then use # 8-173-16UC3-EZ. Since you also already have the mounting flanges to mount the brakes you will not need to add...
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  • Replacement Brake Assemblies, Bearings, Seal and Hub for 2002 Coleman Fleetwood Pop Up
    Coleman/Fleetwood uses Dexter axles so I can help you pick out the parts you need for your 2,200 lb Dexter axle. The bearings you would need are # L44649 for the inner and outer and then for a seal # 10-9. For brake assemblies you would need part # 23-47 for the left and part # 23-48 for the right. I know you didn't mention it, but if you needed to hub drums you would need part # 8-173-16UC3.
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  • Recommended Axle Upgrade For Vintage Trailer
    Based on the picture you provided you are actually measuring from the inside of the drum to the inside of the drum, and not to the actual hub face. Since you are getting 62" inside to inside you are actually probably closer to 72" hub face to hub face. The closest standard axle we have to that length is the Dexter Trailer Idler Axle Beam with EZ-Lube Spindles - 72" Long - 2,200 lbs # T20BTR-EZ-7258 which has a hub face to hub face measurement of 72" and a spring center to spring center...
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    Image 1 for
  • Hub, Mounting Flange and Brake Assembly Recommendation for BTR EZ Lube Spindle TRU44FR
    All of the parts you listed are compatible with each other and would be the correct ones for you to use. The BTR EZ Lube Spindle part # TRU44FR is the correct spindle to use with the Trailer Hub & Drum Assembly # 8-173-16UC3. The brake assemblies # 23-48 and # 23-47 are also compatible with this hub and the correct mounting flange that will work with all parts mentioned is the # 4-34.
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  • What do I Need to Add Electric Drum Brakes to a Pop Up Trailer
    Only one of the pictures came through but that's okay. I think it shows me enough. It looks like you currently have idler hubs with a 4 bolt pattern on the trailer now. You want to verify the bolt pattern is 4 on 4. I've linked an article if you need help. If I'm right about this then verify your bearing numbers are # L44649 for both the inner and outer. If they are then the hub and drum assemblies you need are either part # 8-173-16UC3-EZ if you have an E-Z lube axle with a zerk...
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  • Recommended 7-Inch Hub And Drum Assembly For Electric Brakes
    We do offer just the 7-inch hub and drum without bearings, seals, and races for hydraulic brakes but we do not sell the hub and drum for electric brakes without those components. The hub and drum assembly I recommend is part # 8-173-16UC3. This does come with the bearings, races, grease seal, grease cap, and lug nuts and is rated for 2,000-lb axles. This assembly does have a 4 on 4-inch bolt pattern.
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  • Availability of Replacement Washers for 1-Inch Spindle for Dexter Trailer Hubs and Drums
    Thanks for the comment. We do have replacement washers # SW1000 for the hub and drum you referenced # 8-173-16UC3. We also carry 1-inch trailer spindle nuts. The replacement part is # 165686. You may also need a cotter pin. The replacement part is # 165649. If you have an EZ Lube Spindle you will need different parts. Just let me know so I can make the proper recommendations. I have linked a video showing how to remove and reinstall a trailer hub.
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  • Can 7 x 1-1/4 Inch Electric Trailer Brakes be Used w/Hydraulic Brake Hub for 7 x 1-3/4 Inch Brakes
    Hub and drum assembly # 8-276-5 is not a proper fit for 7 x 1-1/4 inch brake assemblies and should not be used with them. I know you are looking to save some money but believe me, you can spend a little now on the correct hub and drum assembly, # 8-173-16UC3, or a lot later after the additional length of the hub stress the bearings and spindles and you are looking at replacing the axles.
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  • Correct Replacement Brakes and Hub/Drum Assembly for '97 Jayco Popup
    The difference between part # 8-276-5UC3 and part # 8-173-16UC3 is that the 5UC3 works with a 7" x 1-3/4" brake assembly while the 16UC3 works with a 7" x 1-1/4" brake assembly brake assembly. Other than that they use # L44649 inner and outer bearings and a 10-9 grease seal that has the 1.5" inner diameter. You definitely want to go with assemblies that match your bearings so if you're able to confirm that you have L44649 bearings then I'd use one of the options mentioned above. The GVWR...
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  • Converting Existing Hydraulic Brake System to Electric on Pop-Up Camper
    The Dexter Hub/ Drum you mentioned, part # 8-173-16UC3 would be a proper replacement for you as long as the inner and outer bearings in your existing hubs are # L44649, the grease seal is # 10-9 and the 4-on-4 bolt pattern matches up with your existing hubs. Your existing bearings and grease seals should have reference numbers stamped on them, make sure the numbers on the existing parts match those of the replacements. You will also need electric brake assemblies, part # 23-47 for the...
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  • Recommended 7 Inch Brake Drums and Brake Assemblies
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  • Smallest Wheel Size Allowed for Dexter 2,200 Lb Axle with 7" Brakes
    The trailer hub/drum is what dictates wheel size and I looked up the minimum wheel size on all of our Dexter Trailer Hubs/Drums for 2,200 Lb Axles like part # 8-173-16UC3 and they all list the minimum wheel size as 10". The Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel part # AM3H410 will be a great option for this. It only measures 20.6" diameter x 8.3" wide and is designed for a 4 on 4" lug pattern like the above hub/drum.
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  • Parts Needed to Add Trailer Brakes to Dexter 2,200 lb Axles
    For hub drums that fit a Dexter 2,200 lb axle and have a 4 on 4 inch bolt pattern you would want the part # 8-173-16UC3 for each side of the axle. For the left hand brake assembly you would want the part # 23-47 and right hand part # 23-48. These will bolt right up to your brake mounting flange and the hub will fit the spindle well.
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  • Adding 7 Inch Electric Trailer Brakes to Trailer With Idler Hubs
    If your existing hubs use a L44649 bearing with an ID of 1.063, we have a solution for you. You'll want to measure the ID of your existing bearings to confirm. A digital caliper like # PTW80157 is an easy way to get an accurate measurement of your bearing's inner diameter. If your existing hubs use the L44649 bearings, you can use the Dexter # 8-173-16UC3 which is compatible with a standard spindle or # 8-173-16UC3-EZ compatible with an EZ lube spindle. For a brake assembly, use # 23-47...
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  • Replacement Hub and Drum Assembly for 1974 Tee Nee Boat Trailer with 7 inch Electric Brake Drum
    The information you provided is great! From your part numbers I was able to find that the bearings would be a direct switch but that the grease seal and grease cap dimensions on the hub you have and the, 8-173-16UC3, 4 on 4 Trailer Hub / Drum Assembly are different. The, HD700ACU3, Complete hub and drum assembly is the part you would need for a direct replacement.
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  • Availability of Trailer Hub/Drum and Brake Assembly that Fits 10 inch Wheel with 4 Lug Pattern
    The Dexter hub/drum part # 8-173-16UC3 has a 4 on 4 inch bolt pattern and can fit behind a 10 inch wheel. For a brake assembly you'd then want the part # AKEBRK-2R which is a right hand side assembly. The hub is designed to fit the spindle part # TRU97FR which has a diameter of 1.00 inch.
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  • Diameter Of Grease Cap Included With # 8-173-16UC3 Hub And Drum Assembly
    I went to the warehouse and measured the grease cap that is included in the Dexter Hub and Drum Assembly # 8-173-16UC3. The diameter of the grease cap that is inserted in the hub measures 1.98 inches.
    view full answer...


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