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  1. Trailer Hubs and Drums
  2. Dexter
  3. 4 on 4 Inch
  4. For 2200 lbs Axles
  5. Hub with Integrated Drum
  6. 10 Inch Wheel
  7. 12 Inch Wheel
  8. 13 Inch Wheel
Dexter Trailer Hub and Drum Assembly for 2,200-lb E-Z Lube Axles - 7" Diameter - 4 on 4

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

Item # 8-173-16UC3-EZ
Our Price: $106.57
Trailer Hubs and Drums
Shipping Weight: 15 lbs
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This hub-and-drum assembly fits 2,200-lb E-Z Lube 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 E-Z Lube Axles - 7" Diameter - 4 on 4 part number 8-173-16UC3-EZ can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (22)
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Dexter Trailer Hubs and Drums - 8-173-16UC3-EZ

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

This hub-and-drum assembly fits 2,200-lb E-Z Lube 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.


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


  • Application: 2,200-lb trailer E-Z Lube axles with BTR spindles
  • Wheel size: 10" to 13"
  • Inner 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"

E-Z Lube-Compatible Hub for Simple Lubrication

The grease cap on this hub-and-drum assembly 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"

008-173-92 Dexter Trailer Hub and Drum Assembly - 2,200-lb Axles - 4 on 4 - EZ Lube

Replaces 8-173-16UC3-EZ and 115440

Customer Satisfaction Score:

Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (22 Customer Reviews)

This hub-and-drum assembly fits 2,200-lb E-Z Lube 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.


Perfect fit for my Dexter Model 48424 axle. Assembly was straight forward.

Appears to be a good fit with the AKEBRK-2 break kit. Still have to do a test drive and confirm breaking operation. If that goes as expected this could be 5 stars.


Needed electric brakes on my Scamper pop up camper 1997, to tow with my Subaru (needs brakes over 1 000 lbs). These fit perfectly. Easy to install and a breeze when you drive.

Louise G.


Thank you for asking. I am very happy with my purchase. Worked great last summer and I look forward to taking the road again with my Skamper camper and feeling secure. Have a great summer


Not even 2 years after install all rusty. Electric brake pin broke due to rust.
Impossible To remove 4 bolt holding connector due To rust. I do not recommend


Well after receiving 2 different hubs and unfortunately of course installed the correct one first about 45 minutes or less. Perfect fit and finish. etrailer took care of the wrong hub and when i received it took around 30 minutes to install that side. If you have general knowledge and just a bit of mechanic skill you can do it. Added brakes to my 2008 pop up camper, have driven this over 8000 miles (or more) now and has worked flawlessly. Highly recommend.


I purchased a pair of these to replace the hubs on my 2001 Jayco popup camper w/Dexter axle. They arrived quickly and included everything but the grease. The races are already installed, which is great. These are EZ lube hubs, but the only difference I could see is the EZ lube dust cap and a different hub seal. I installed these on non-EZ lube spindles and used the bearing buddies I already had. eTrailer was great in addressing the one question I had, the price was great, and I got free shipping with my order over $150.


New hubs were shipped immediately after ordering and arrived the next day. They fit my 2004 Viking Epic 1706 perfectly. I was able to change them out in about one hour and get on the road to Florida. I re-torqued the lug nuts and checked the hub temperature at every gas fill up and they never got warmer than the tires. Drove 1000 miles in two days with no issues. Thank you etrailer for quality parts at great prices and excellent customer service.


Heavyweight and nicely machined


Essentially plug and play for my previous hubs. Great quality and fit. Would purchase again.



Still going strong. No regrets. Would purchase again.


Worked great and went on very easy. Feels a lot better to tow a trailer with brakes!!


This is a great product for a great price. Perfect fit and easy assembly for the inexperienced. I put 5000 miles on this set immediately after install and it worked flawless with brake control.
Highly recommend etrailer products and great service.


Great quality dexter product. Was a quick and easy replacement for the worn drum on my tent trailer with a 3000lb dexter axle.


Fairly priced and it came one day sooner than expected. Very satisfied with the service so far. I’ll post an update when I get to try the parts I purchased.

Thank you ETRAILER!


Product delivered as ordered. Great communication throughout order process by Patrick, and order was delivered very fast. We will use again for future requirements. Thanks!


Well made, fast shipping, everything just as it should be. Thanks etrailer!


I ordered two of these. They arrived quickly and works perfectly.



Ive had these brakes for a year now. I am still pleased with them. Although I did have trouble with the Drivers side unit at first. I could not eliminate a squeak when applying the brakes. eTrailer worked with me to resolve the problem. They sent me a total one side replacement. I recently completed a 300 miles trip with the camper and the brakes worked perfectly. No more squeak.


Good product. I installed on my 2009 Jayco 1007 pop up and they worked. Always a plus. Received in about a week.


excellent product very happy with the s ervice


Looks great! Best price, amazing fast s hipping







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

  • Replacement Brake Drum for a 1998 StarCraft 2408 Pop Up Trailer
    When trying to find the correct drum brakes, a measurement of the inside drum diameter and the depth of the drum will be needed. See attached picture. The drum that you referenced, # 8-173-16UC3, measures 7 inches in diameter and 1-3/4 inches deep. Also this drum will have a 4 on 4 bolt pattern. If your drum has this measurement and your current shoes measures 1-1/4 inches wide, then this will be the correct part and work it well for your pop up camper. I have also attached an article...
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  • Can Electric Trailer Brakes be Added to a Harbor Freight Kit Trailer
    Neither of those Harbor Freight trailers has brake mounting flanges on the spindles. To add electric brakes you would have to have brake mounting flanges welded on. This is a precision job that requires a special jig and someone with experience in welding on flanges. I have included a link to the flanges we carry to the right. You would also need to replace the idler hubs on the trailer(s) with hub and drum assemblies. The problem with that is the Harbor Freight trailers use uncommon bearings...
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  • Replacement Axle for Harbor Freight Trailer
    In order to find a replacement axle for your Harbor Freight trailer you will need to take some measurements to determine the correct axle length. The most important measurement is the distance from hub face to hub face. Additionally, you can measure the spring center distance. When replacing your trailer's axle, you should be able to figure out which type you need by determining your trailer's capacity, the bolt pattern of your wheels, the brake type and these measurements. If you provide...
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  • Diameter Of Hub On Trailer Hub And Drums With 4 On 4 Bolt Pattern
    I went to the warehouse and measured the hub on both the # 8-173-16UC3-EZ and the # 8-276-5 hub. The outside hub measurement for the 8-173-16UC3-EZ is 2.47-inches. The outside diameter of the hub for the # 8-276-5 hub measures 2.06 inches. Both of these hub assemblies have a 4 on 4-inch bolt pattern so I have attached a link to the tire/wheel combos with 4 on 4 bolt patterns you can check out.
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  • Recommended Replacement Brake Assemblies for Viking 2107 ST Pop-Up Camper
    The American-Made Dexter # K23-103-104-00 brake assemblies would be absolutely the correct application for your Viking Pop-Up. The brake assemblies are compatible with 12 inch wheels used by your 145R80 tires. The installation is pretty easy if you're moderately handy. The video I've linked for you will provide an overview of what's involved. The video shows a larger brake assembly being installed, but the procedure for a 7 inch assembly would be pretty similar. Really the only difference...
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  • Availability of Trailer Hub with 4 on 5 inch Bolt Pattern
    If you do indeed have a 4 on 5 inch bolt pattern we have one hub that matches that. For that you would need the part # AH15450ECOMP. There is a better chance that you have a 4 on 4 inch bolt pattern as that is the most common 4 bolt mounting pattern. I attached a help article on determining bolt patterns as well. You should also note that when picking out a hub for an axle you have to make sure you pick one that will fit the spindle. To do this you need to measure the spindle where the...
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  • How To Add Brakes to Dexter Torlfex #9 2,200 Lb Axle
    If the Dexter Torlfex #9 2,200 Lb Axle has a brake mounting flange welded on then you can install brakes using the Dexter Trailer Hub and Drum Assembly part # 8-173-16UC3-EZ and Dexter Electric Trailer Brake Kit part # 23-47-48 which are designed for E-Z Lube applications.
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  • Correct 7 inch Electric Drum Brake Assemblies and Hub and Drums for Little Guy Silver Shadow Trailer
    The Dexter brake assemblies, part # K23-103-104-00, are for 10 to 13 inch rims. They're designed for 2,200 pound axles that have a 7 by 1-1/4 inch drum. The hubs for a 2,200 pound axle that we carry have a 4 on 4 bolt pattern; parts # 8-173-16UC3-EZ for E-Z lube axles and # 8-173-16UC3 for standard axles. You need to verify that your Little Guy Silver Shadow uses bearings # L44649 for both the inner and outer to confirm the hubs are correct.
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  • How To Determine Axle Capacity of Trailer with 4 Lug Hubs with Brakes
    The only way to know for sure is to check your bearings. That being said, the most common 4-bolt configuration is a 4 on 4 bolt pattern, which are typically found on 2,000 lb to 2,700 lb trailer axles. The only 4 on 4 bolt pattern hub and drum assemblies we carry are for 2,200 lb axles and use # L44649 inner/outer bearings. See below. Compatible with 7 inch x 1-1/4 inch electric and hydraulic brakes # 8-173-16UC3 - Includes bearings, races, grease seal, standard grease cap and lug nuts. #...
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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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  • Brake Drum for a Reliable 2,700 Pound Trailer Axle
    If the spindles on your Reliable 2,700 pound axle are straight (same diameter in both bearing locations) then that indicates that it uses L44649 inner and outer bearings but if the spindles are tapered (inner bearing surface diameter is larger than the outer bearing surface diameter) then it will use L68111 for the inner bearing and L44649 for the outer. If you pull a hub off and find that both bearings are L44649 you can use # AKHD-545-2-EZ-2K if there are grease fittings at the ends...
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  • Replacement Brake Assemblies and Hub/Drums for 2,200 lb Trailer Axle
    For a 2,200 lb axle the correct brake drums would be the # 8-173-16UC3-EZ for a 4 lug hub. For brake assemblies you'd need the part # 23-47 for the left hand side and part # 23-48 for the right hand side.
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  • Electric Brake Assemblies and Hub and Drum for Snowmobile Trailer with 7x1-1/4 Inch Brakes
    For Dexter 7 x 1-1/4 inch electric trailer brakes you will use # 23-47 for the drivers side and # 23-48 for a passenger side assembly. For a hub and drum assembly, you may need # 8-173-16UC3-EZ. This has a 4 on 4 bolt pattern and is designed for use with the brakes listed above. It takes inner and outer bearing L44649 and a 10-60 grease seal (included). If the bearing numbers or wheel bolt pattern is different on your existing hub/drums let me know and I can determine if there is something...
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  • Can Trailer Brakes be Installed on Trailer with 10 inch Wheels
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    For a 4 lug hub/drum that has a 7 inch diameter drum we have the 2,200 lb axle hub/drum # 8-173-16UC3-EZ and then for a matching brake assemblies you'd want # 23-47 and # 23-48.
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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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    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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  • 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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  • Adding Brakes to 1999 Jayco Heritage Glacier with Dexter 2,500 lb Axles
    A Dexter 2,500 lb axle uses hubs that have inner and outer bearings of L44649 like the part # 8-257-5UC3 which has a 5 lug bolt pattern or the # 8-173-16UC3-EZ which has a 4 lug bolt pattern. These both come with bearings and seals as well. For brake assemblies you'd want the part # 23-47 for the left hand side and # 23-48 for the right hand side and you'd be set. I attached a help article link on adding electric brakes to a trailer for you to check out as well that I think you'll find...
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  • Recommended Trailer Brake Assemblies for 2003 Coachmen clipper
    From this and the additional information you provided (such as the casting number from your brake drums), I've found that your Coachmen Clipper uses a 7 x 1-1/4 Inch electric brake assembly. If there are wires You would want to use # 23-47 for the left side and # 23-48 for the right side. Mounting hardware is included with the assemblies You might also consider replacing your brake drums as well. Take a good look at the armature surface (the surface the brake magnet rides against) and...
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  • Replacement Hub and Drum Recommendation for a Dexter 2k Axle
    Sounds like you have a 2,000 lb Dexter Axle like the part # T20BTR-6048 which take inner and outer bearings L44649 and would use the part # 8-257-5UC3-EZ for a hub/drum that has a 5 bolt pattern or part # 8-173-16UC3-EZ for a 4 bolt mounting flange. For brake assemblies you would want the # 23-48 for the right hand side and part # 23-47. Before you order any parts you would want to pull a hub from your trailer to verify that both bearing numbers are L44649.
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  • Recommended Hubs and Electric Brakes for 2015 Jayco Sport 10SD
    You are absolutely on the right path! I was able to contact Jayco and confirm that your 2015 Jayco Sport 10SD came from the factory with a 2,200 pound Dexter EZ Lube axle. With this in mind, the Dexter E-Z Lube Trailer Hub and Drum Assembly # 8-173-16UC3-EZ is the correct hub and drum for the trailer. It features the 4 on 4 inch bolt pattern you are needing along with the E-Z Lube grease cap with plug and seal to allow for easy bearing maintenance. Since you will be changing out the hubs...
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  • 4-on-4 Bolt Pattern Hub/Drum for Use on 2K-Rated Axle
    Matching up new hub/drum assemblies to your Dexter P-11 axle just requires matching up the bearings used in the original hubs and confirming the axle weight rating. New hubs have to use the same bearings in order to fit on your spindles and your new pair of hubs need to be rated for the capacity of your axle. Usually a plate or sticker on the axle itself (or the trailer) will tell you this. I see that you selected 7-inch brake assemblies for a 2K axle. For 4-bolt hub/drums you can use...
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  • Availability Of a 2,000LB Trailer Axle With 66-1/2" Hub Face and Electric Trailer Brakes
    While we do not have a axle which fits your exact dimensions we do have the BTR E-Z Lube Spindle w/ Brake Flange # TRU27FR. With 2 of these you can have an axle welded up with 2 Spring Seats # TRSS175 in the dimensions you are needing. Then you will be able to attach the Brakes # AKEBRK-2 and Hub/Drums # 8-173-16UC3-EZ.
    view full answer...

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