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

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Trailer Hubs and Drums

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Shipping Weight: 14 lbs

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4 on 4 Trailer Hub/Drum Assembly
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Product Images

Customer Photos

  • 4 on 4 Inch
  • For 2200 lbs Axles
  • Hub with Integrated Drum
  • Standard
  • 10 Inch Wheel
  • 12 Inch Wheel
  • 13 Inch Wheel
  • L44649
  • Dexter Axle
  • L44649
  • 1/2 Inch Stud
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. Lowest Prices for the best trailer hubs and drums from Dexter Axle. 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 or call 800-298-8924 for expert service.

  • All Info
  • Reviews (17)
  • Q & A (43)
  • Videos (1)
  • Photos
  • Why etrailer?

Dexter Axle Trailer Hubs and Drums - 8-173-16UC3

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.


  • 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: 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

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

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Dexter Axle Trailer Hubs and Drums - Hub with Integrated Drum - 8-173-16UC3 Review

Today were going to review part number 8-173-16UC3. This is the Dexter Trailer Hub and Drum Assembly for electric brakes on a 2200 lb axle. This Dexter Trailer Hub and Drum is designed for 2000 lb trailer axles with electric brakes. The drum size is a 7-inch by 1-3/4. This will work with the part number 23-47 and part number 23-48 electric brake assemblies. This hub will only fit with the 1-1/4 inch brake shoes and will not fit with the 1-3/4 inch brake shoes.

It does have a bolt pattern of 4 on 4 inches and this hub and drum does come with the bearings which in this case would use the same inner and outer bearing which is part number L44649. It will come with the part number 10-6 degree seal. It will come with the grease cap that will go on the outer edge of your hub. And it does come with the 1/2-inch cone seat lug nuts to attach the wheel to your hub. The races are also included but they will come pressed into the hub and drum assembly.

Heres the outer race here and right there is the inner race. All of our hub and drum assemblies will come with the races preinstalled into the hubs. This hub and drum assembly has a capacity of 1100 lbs so when used with one on the other side of an axle you would have a weight capacity of 2200 lbs. I just want to give you a couple measurements. This is a 7-inch drum size so if you measure across on the inside it would be 7 inches.

And it does have a bolt pattern of 4 on 4 inches. And basically, when you have a bolt pattern thats usually an even number of bolt lugs you can just measure from the center of one stud to the center of the other to get you the 4-inch bolt pattern. In this case because the hub center stands higher than the lugs its very hard to get an actual reading. So if the other way would be just go to measure from center of this lug to the center of the lug right next to it either way and that would measure 2-3/4 inches and that will determine that this a 4 on 4-inch bolt pattern. And that should do it for our review on part number 8-173-16UC3..

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   (17 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.

- 8-173-16UC3

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. 384639

- 8-173-16UC3

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. 383216

- 8-173-16UC3

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! 382867

- 8-173-16UC3

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. 370199

- 8-173-16UC3

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. 369776

- 8-173-16UC3

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. 284758

- 8-173-16UC3

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. 246352

- 8-173-16UC3

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. 235104

- 8-173-16UC3

Came extremely fast and just what I ordered and needed. 224063

- 8-173-16UC3

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. 171359

- 8-173-16UC3

Erica at 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!!! 165567

- 8-173-16UC3

We received our order in record time. The representative was most helpful, and we received the item that we needed. 153179

- 8-173-16UC3

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 148814

- 8-173-16UC3

all parts were there, and works OK. 132748

- 8-173-16UC3

no problem all went great 127165

- 8-173-16UC3




LARRY S - 12/28/2014


- 8-173-16UC3

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. 16096


Ask the Experts about this Dexter Axle Trailer Hubs and Drums
Do you have a question about this Trailer Hubs and Drum?

  • Recommended Hubs And Electric Brake Assemblies For Tandem Axle Snow Bird Snowmobile Trailer
  • You can add electric brakes to both axles of your Snow Bird Snowmobile Trailer. To do so you will need new drums only on the axles that don't currently have brakes. You may be able to use your current surge brake hubs for your electric brake assemblies, but often electric hubs on this smaller size require a change due to thickness of the hub. For your hubs, I recommend the Trailer Hub & Drum Assembly - 2,200 lbs. Axles - 4 on 4 # 8-173-16UC3. For your electric brake assemblies, I...
    view full answer...

  • 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...
    view full answer...

  • 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.
    view full answer...

  • 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.
    view full answer...

  • Smallest Diameter Rim the Trailer Hub & Drum Assembly # 8-173-16UC3 will Fit
  • The smallest diameter rim the Trailer Hub & Drum Assembly # 8-173-16UC3 is compatible with is a 10 inch rim. It would not work with an 8 inch rim.
    view full answer...

  • 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...
    view full answer...

  • Can Drums from a Trailer with 7 Inch Hydraulic Brakes be Used When Converting to Electric Brakes
  • You might be able to re-use the drums. Some 7 inch hydraulic drums are sized differently and will not allow electric brake assemblies to be properly positioned in the drum. Some times the hydraulic drums are too deep and will make contact with the brake backing plate before they are seated all the way on the spindle. The best way to proceed is to try re-using the drums first and if they do not fit get drums made for electric brakes or you can buy electric brake drums from the start. We...
    view full answer...

  • Parts Needed for Adding Brakes to a Utility Trailer
  • You will need Hub Drums that have the hub built into the drum. For part # 23-47 you will need 7 inch Hub Drums, like part # 8-173-16UC3 and mounting flanges, part # 4-34, that will need to be welded to your axles. This size brake and hub drum assemblies are for smaller trailers. You will pick your hub drum based on your wheel and axle size, then you will pick the brakes that fit that hub drum. If you write back with your bolt pattern and bearing numbers, I can help you find the correct...
    view full answer...

  • 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...
    view full answer...

  • Adding a Brake Axle to a 48 Inch Wide Home Made Travel Trailer on Harbor Freight Frame
  • What you could do is use an axleless system # A35RS545E which comes with everything except a brake controller. The only issue is that you would need to also replace the tires and wheels with something like # TTWA13BSM since the kit has a 5 bolt pattern and your trailer has a 4 on 4 pattern. We don't have a straight axle with the proper spring hanger spacing for the trailer. But you could potentially use # T20BTR-6048 and have a professional welded cut off the spring seats and weld on...
    view full answer...

  • Picking Out Replacement Axle for 2005 Coachman Clipper
  • That picture of your wheel is pretty crazy! I hope the damage was minimal and no one got hurt! If you damaged a bearing there's a pretty good chance you also damaged the spindle it rides on. You'd need to inspect the spindle to make sure it's free of damage. If it's damaged it's probably a good idea to just replace the axle since you are already at the point of replacing most of the axle. Especially if the hubs are currently pretty rusty on both sides most likely. You are going to...
    view full answer...

  • Adding Brakes to a 2015 Jayco Jay Sport 8SD
  • If you want parking brakes for your 2015 Jayco Jay Sport 8SD then you do want to go with the Dexter Electric Trailer Brake Kit # K23-103-104-00. Parking brakes aren't required so if you would rather use standard brakes then you can use the part # 23-47-48 that you referenced instead. If your spindles don't already have the brake mounting flanges then you need those, like part # 4-34, as well. Please note that if you haven't had brakes on your trailer yet then you also need hub and drum...
    view full answer...

  • 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...
    view full answer...

  • Is Dexter Axle Trailer Hub & Drum Assembly # 8-173-16UC3 Recommended for 1993 Starcraft
  • The Dexter Axle Trailer Hub & Drum Assembly # 8-173-16UC3 is a compatible fit for the Dexter axle on your 1993 Starcraft so long as the weight falls at or below the product weight capacity of 2000 lbs and is compatible with your existing bearings. This assembly works only with 1-1/4 inch brake shoes, not 1-3/4 inch shoes and has a 4 on 4 inch bolt pattern. I have included a link to a video review of this item. The other two items you referenced, the Dexter Axle 7 Inch Brake Assembly...
    view full answer...

  • Adding Electric Brakes to a Trailer with Inner and Outer Bearing L44649 and 13 Inch Wheels
  • To start, the trailer is going to need hub and drum assemblies. Based on the bearing numbers there are several options available. If your 13 inch wheels have 4 bolt holes then you would need 2 of assembly # 8-173-16UC3. If the wheels have 5 bolt holes then you would need 2 of assembly # 8-257-5UC3. For electric brakes for either of these assemblies you would need # 23-48 for the right side and # 23-47 for the left side. You will also need 8 of nut # 6-17 and 8 of lock washer # 5-8. And...
    view full answer...

  • 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.
    view full answer...

  • Parts Needed to Add Brakes to a 1995 Jayco Camper 1005
  • We have just what you would need. Thanks for getting me the bearing information as that allowed me to piece together what hub you would need. For a hub and drum you would want the part # 8-173-16UC3. This will fit your spindle and wheels as it has a 4 on 4 inch bolt pattern. For brake assemblies you would want the part # 23-48 for the right hand side and part # 23-47 for the left hand side. For a breakaway kit you would want the part # 20099. For a brake controller I would recommend...
    view full answer...

  • Recommended Longer Wheel Lug Nut for Trailer Hub and Drum Assembly with 1/2 Inch Wheel Bolts
  • I've got just the chrome 1/2 inch wheel lug nut you need. The Redline # 12CLN will work on your # 8-173-16UC3 1/2 inch wheel bolts. They are sold individually, so you will want to update the quantity to 8 for one axle. I have linked the chrome lug nut to this page for your purchasing convenience.
    view full answer...

  • Parts Needed to Install Trailer Brakes on 2015 Livin Lite Quicksilver 10.0 Tent Trailer
  • I can certainly help you determine what parts you need to add electric brakes to your 2015 Quicksilver 10.0 tent trailer. Based on my research, it looks like your trailer has a 2,000 pound axle. If that is the case you can use the following part numbers: Brake Mounting Flange - # 4-34 Brake Assemblies - # AKEBRK-2L left-hand side # AKEBRK-2R right-hand side Hub and Drums - # AKHD-545-2-EZ-2K for 5 on 4-1/2 inch wheel bolt pattern or # 8-173-16UC3 for 4 on 4 inch Breakaway Kit...
    view full answer...

  • Comparing Trailer Hub and Drum Assembly # 8-173-16UC3 with # 8-276-5
  • Basically, an electric brake assembly is going to be a 7 x 1-1/4 inch while a hydraulic brake assembly will be a 7 x 1-3/4 inch. If you are using electric brakes on the trailer, go with Trailer Hub and Drum Assembly, # 8-173-16UC3. For hydraulic drum brakes, use Trailer Hub and Drum Assembly, # 8-276-5.
    view full answer...

  • Converting 1994 Jayco Camper From Hydraulic Brakes to Electric Brakes
  • I have attached a great article at the bottom of this page that details all the components needed to install electric brakes on a trailer. The particular parts you need will depend on the camper's axle capacity along with the inner and outer bearings that are used on your existing hubs. This is needed to determine the correct hub and drum assemblies that will fit the spindles on the axle. If you can tell me the inner and outer bearing numbers, which should be stamped right inside the...
    view full answer...

  • 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...
    view full answer...

  • 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.
    view full answer...

  • Can 7 Inch Hydraulic Trailer Brake Drums be Used with Electric Brakes
  • The Dexter hubs for hydraulic brakes # 23-399 and # 23-398 indicate that they are for use with hydraulic brakes only so you would not use them with electric brakes. The inside surface where a brake magnet would stick (called the armature surface) is not the correct design for electric brakes. In order to go to electric brakes you would also need to change the hubs. To keep the same bolt pattern you can use hub # 8-173-16UC3. And then you would need brake assembly # 23-48 for the right...
    view full answer...

  • 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.
    view full answer...

  • 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.
    view full answer...

  • 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.
    view full answer...

  • Options for Adding Brakes to Tandem Axle Sailboat Trailer
  • The trailer disc brakes we offer are the hydraulic type, such as the Titan tandem axle disc brake and actuator kit # T4843200 which is rated for 3500-lb axles. We also offer electric drum brakes, which are seeing more and more use as the preferred OEM option due to their simpler installation (than hydraulic systems) and their lower overall cost. Even though water and electricity do not mix well, many boat trailer makers now specify electric drum brakes; the key to safe operation is...
    view full answer...

  • Recommended Hub And Drum for Electric Brakes With 4 On 4 Bolt Pattern For 1973 Scamp Trailer
  • The hub we offer that will work with electric brakes and has a 4 on 4 bolt pattern, is part # 8-173-16UC3. You are correct that this hub and drum will only work with 7 inch x 1-1/4 inch brakes. The bearings, races, and seals are included with this assembly. I have attached a product review video for this hub/drum you can check out. The electric brakes that will work with this drum is designed for axles rated up to 2,000 lbs. The brakes have a 4 bolt mounting flange. For the right...
    view full answer...

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