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Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K

Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K

Item # 4-34

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4-34 - Hardware Redline Accessories and Parts
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  • Trailer Brakes
  • Disc Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Hardware
  • Redline
  • Mounting Flange
  • 7 Inch
  • 1-3/4 Inch Diameter Axle
Call 800-298-8924 to order Redline accessories and parts part number 4-34 or order online at etrailer.com. Free expert support on all Redline products. Guaranteed Lowest Price and Fastest Shipping for Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K. Accessories and Parts reviews from real customers.


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  • Reviews (9)
  • Q & A (44)
  • Videos (1)
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Redline Accessories and Parts - 4-34


Brake Mounting Flange

  • Works with 7" brake assemblies (2,000 lbs. axles)
  • Center Hole I.D.: 1.64"
  • Hole Spacing: 2-7/8" center to center
  • 4-Bolt
  • Use with 1-3/4" round axles, that use 1.25 and 1.38 round 2,000 pound spindles
  • Brake mount flange gets welded to the end of the axle to provide a secure mounting place for brake assemblies



Video of Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K


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




Video Transcript for Redline Trailer Brakes 4-34 Review

Today we're going to be taking a look at a brake mounting flange for a 1 3/4 inch round trailer axle. This brake mounting flange gets welded to the end of the axle to provide a secure mounting place for a brake assembly. It does work with seven inch brake assemblies. Again it's designed for 1 3/4 inch round axles, or 2,000 pound axle, or typical 2,000 pound axle. The center hole is going to give us a diameter of 1.64 inches. The hole spacing, the distance that we have center on center between each of those holes is going to be the same at 2 7/8 of an inch, center on center.

Overall measurement is a square design. It's going to measure 3 3/4 of an inch by 3 3/4. As you can see, it's a four molt hole design. That's going to do it for today's look at the brake mounting flange for a 1 3/4 inch round trailer axles.


Customer Reviews

Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K - 4-34

Average Customer Rating:  4.8 out of 5 stars   (9 Customer Reviews)


- 4-34

by:


4-34 four bolt mounting plate is an excellent replacement for my 1997 Coleman Fleetwood Bayports popup campers that I am close to finishing a restoration process on. They fit perfectly! Very happy to purchase an excellent product from the fastest shipper I have ever come across. I am blown away by the professionalism with this company! Thanks 142954



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Flanges are listed as 1.75 inches but measure 1.6 inches. A few minute with Dremel fixed it. 569676



- 4-34

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Works fine 493005



- 4-34

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Good fit no problem mounting to axle! Works very well! 451907



- 4-34

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. 384496



- 4-34

by:


I received my parts and are in great condition. Customer service and support were excellent. 366513



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Look just like it is pictured 218583



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Excellent Product 122645



- 4-34

by:


Very helpful and part fit great and order was shipped when said. Will order more parts from you again. Thank You 81973


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Ask the Experts about this Redline Accessories and Parts
Do you have a question about this Accessories and Part?


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  • There are a couple of methods you can use to determine bolt pattern of the wheels themselves. First, you can use the number of lugs and the bolt circle. For an even number of lugs, measure the center to center distance of 2 lugs directly across from each other. If you had 6 lugs and the distance measured is 5 inches, you have a 6 on 5 bolt pattern. For an odd number of lugs, it is a little more difficult. Measure from the center of 1 lug directly across to the center point between 2...
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  • Parts Needed for Adding Brakes to a Utility Trailer
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  • Complete Electric Brake Installation for 2,000 lb Trailer Axle
  • With the axle measurement and the bearing number, I can confirm that you have 2,000 lb capacity axles on your trailers. You will want to get the Brake Mounting Flange, # 4-34, to weld onto each side of each axle. With that flange in place, you will want to mount the 7 inch Electric Trailer Brake Assembly # AKEBRK-2L on the left side of the axle and the # AKEBRK-2R on the right side of the axle. These are nearly identical parts, but installing on the correct side is very important....
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  • Recommended Replacement Axle And Brakes For Popup Camper
  • The axle you need for your popup camper will depend on the width of the camper. If possible, I recommend an axle that comes with the brakes and hubs already installed. This would cut down on a lot of work and hassle piecing a system together. I have attached a helpful article that explains what is needed to add electric brakes to an axle you can check out. when considering new axles and hubs you will want to make sure they match the bolt pattern of the wheels you have. I have attached...
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  • Why Dont 2,000 Lb Trailer Axles Comes with a Brake Mounting Flange
  • A 2,000 lb trailer axle like the Dexter Trailer Axle Beam part # T20BTR-7258 is not going to come equipped from the manufacturer with a brake mounting flange because of the weight of the trailer it is designed to be used on. However, most qualified welders can add the brake mounting flange part # 4-34 for a very small fee. The Dexter Trailer Axle has a 2,000 lb weight capacity, 58" spring center, and 72" hub face length. It uses a L44649 bearing on both the inner and outer seats. Once...
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  • Can a 2,000 Pound Trailer Axle be Fitted with Electric Brakes and 10 or 12 Inch Wheels
  • You would need to step up to a 3500 pound set up to get an axle that comes with brake mounting flanges. You could have brake mounting flanges welded to a 2K axle if you wanted but it is a precision job that requires the proper equipment and someone who has performed this job before. So for example you could use axle # T20BTR-6048 with hub and drum assembly # 8-257-5UC3. then you would need brake mounting flange # 4-34 and brake assemblies # 23-47 and # 23-48. The hub and drum assembly...
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  • How to Determine the Correct Electric Trailer Brake Shoes for a 2002 Jayco Kiwi 23B Hybrid Camper
  • I did some research online and it looks like your 2002 Jayco Kiwi 23B hybrid camper will have 2 torsion axles with 4 bolt brake mounting flanges and 10 by 2-1/4 inch brake assemblies. You should remove one of the wheels and a hub and check to be sure before ordering parts. You will also need to determine the manufacturer of the brake assemblies on your axles before ordering replacement parts to determine the correct parts that will fit the brake assemblies. I added a photo showing how...
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  • A Professional Should Install Trailer Brake Mounting Flange # 4-34
  • You are correct about needing to have a brake mounting flange like # 4-34 welded on correctly. Because it needs to be just right it should be installed by a qualified professional in a shop that works on trailers. We do not have specific instructions for installation, but a pro will know how to do it.
    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...
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  • Hub and Drum Assemblies and Spindles for Dexter Electric Trailer Brakes for 3500 Pound Axles
  • The brake assembly # 23-112 is rated for 6,000 pound axles, not 3,500 pound axles. For a 3,500 pound axle you will need to look at 10x2-1/4 inch brakes such as # 23-26 for the left side and # 23-27 for the right side. These mount to a 4-bolt flange, such as # 4-34 for 1-3/4 inch round axles, or # 4-35 for 2-3/8 inch round axles. Brake mounting flanges need to be installed by a qualified professional with experience welding on brake flanges because it is a precision job requiring special...
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  • What Parts Are Needed to Add Electric Brakes to a Trailer with a 2,000 Lb Axle
  • In order to install electric brakes on your trailer you will need a brake mounting flange, brake assembly, hub/drum, trailer wiring, breakaway kit, and brake controller. I have attached my recommendations on each of the following for you below: Brake Mounting Flange: part # 4-34 (2) Brake Assembly: part # AKEBRK-2 Hub/Drum: part # AKHD-545-2-EZ-2K (2) Trailer Wiring: part # ET7WK Breakaway System part # 20099 Brake Controller: part # 90885 In order to be sure the above...
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  • Adding Electric Brakes to 1999 Coleman Santa Fe Pop-Up Camper 3389
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  • Replacement Axle with Hydraulic Drum Brakes on a 2,200 Lb Boat Trailer
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  • Parts Needed to Add Electric Drum Brakes to Trailers with 2,000 lb Axles with 5 on 4-1/2 Wheels
  • To add electric drum brakes to your trailers the first thing you will need are brake mounting flanges. There are different ones for different diameter axles. Given the lower capacity of the trailers I am guessing the diameter of the axles is 1-3/4 inches at most. That is the smallest brake flange there is, # 4-34, for 2K axles. Anything smaller or that isn't common will require a flange to be fabricated. A note on welding them on: generally it takes a special jig and someone with experience...
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  • Adding Electric Brakes to Northern Tool UltraTow 5x8 Aluminum Frame Trailer
  • Because the trailer doesn't have a traditional size, in order to upgrade to trailer brakes you will need to have a welder install the Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K # 4-34 which will require the proper jig to ensure placement and alignment. Then you will need to measure your spindles to help get the correct replacement hubs to add the integrated drum. I've attached a photo of the locations to measure with a digital caliper like # PTW80157 to assist in getting...
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  • Recommended 72 Inch Axles And Brakes For Tandem Trailer
  • The 72 inch axles we offer have all got a weight capacity of 2,000 lbs. Also, none of the 72 inch axles have a brake mounting flange attached. You would need to have the components for a brake assembly installed on one of the axles. I recommend the Dexter Trailer Axle w/ Idler Hubs, part # 20545I-EZ-72-15, for the axle that you said you want free rolling. This has an EZ-Lube spindle with a 5 on 4-1/2 bolt pattern and has the bearings, races, seals and hubs included. This axle will work...
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  • Dimension Of Brake Mounting Flange For 7 Inch Electric Or Hydraulic Brakes
  • It sounds like you need the brake mounting flange that needs to be welded to the axle. You will need to know the diameter of your axle to make sure you choose the correct brake mounting flange. If you have a 1-3/4 inch round 2,000 lb axle, the brake flange you need is part # 4-34. This has a 4-bolt mounting pattern with a center hole that measures 1.64 inches diameter. This will work with 7 inch brake assemblies like part # 23-398 for hydraulic and part # 23-48 for electric brakes. If...
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  • Brake Mounting Flange Recommendation for a 2k Rated Trailer Axle
  • What you will want to do is purchase the part # 4-34 as this is a brake mounting flange designed for 2k axles. The brake mounting flange needs to be welded on perfectly square and concentric and if it is off just a little bit, this can lead to all kinds of problems with trailer ride, stability, tire, and suspension wear. We strongly recommend that brake flanges be welded on by a professional shop that routinely works on trailers and has the equipment required to weld the flange to the...
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  • Trailer Brakes To 2008 Scamp Deluxe with Dexter Number 9 Axles
  • From the research I did it looks like the Dexter number 9 axle is a 2,000 lb torflex axle. For a brake hub you would want the part # 8-257-5UC3-EZ. For assemblies you would need part # 23-48 and # 23-47. For flanges you will need part # 4-34 but these have to be professionally installed by someone with a jig setup for installing them as they have to be perfectly square.
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  • For a 2,000 lb axle, the Double Lip Grease Seal - ID 1.249" / OD 1.983" - Qty 1 # 34823 is the most standard size grease seal. You may want to use a digital caliper like # PTW80157 to confirm these dimensions match your hub and spindle. I've attached a video to assist.
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  • 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...
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  • Brake Mounting Flange Location Measurement on Spindle # R20384EZ
  • We only have one spindle with the brake flange for me to measure. The EZ Lube Spindle 1.75" RD x 3" STUB # R20384EZ has a measurement of 1.23 inches from the step in the spindle to the outermost part of the brake flange. I've attached a photo to assist. The brake flange # 4-34 or # 4-35 needs to be welded perfectly perpendicular to the axle so it is recommended to have a professional with a jig do this welding. There is not a brake flange fit for the square axle spindle # SP20484.
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  • How to Install Dexter Electric Trailer Brake Assembly on Trailer Without Brake Mounting Flange
  • In order to install the Dexter Electric Trailer Brake Assembly part # K23-086-00 on your trailer you will need to install a brake mounting flange as well. Based on the photo you submitted, there isn't room to install a brake mounting flange on the axle but you should be able to install it on the stud just before where the grease seal seats. If the diameter of the stub you have is 1-3/4" then you can use the Brake Mounting Flange part # 4-34 otherwise you would need to fabricate something...
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  • Can Trailer Brakes be Added to a Trailer for a Tiny House
  • You can actually add brakes to any trailer axle, all you will need to do is run wiring for the brakes and then install a hub that is compatible with the spindles on your axle and use a brake that is compatible that hub. I have attached a helpful article about adding electric drum brakes (which are some of the easiest to maintain) on a trailer that you can check out. Please note that if they planned on only using the trailer once they might have used a mobile home axle. If that is the...
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  • What Do I Need to Install Electric Brakes on My Boat Trailer with Weight Capacity of 2232
  • With a single axle trailer rated for 2232 lbs. you will have either a 3500 lbs. or something closer to a 2000 lbs. axle. Before purchasing anything you will need to determine the correct one which you can easily do by checking the bearings once you have the trailer. If your outer and inner bearings are both # L44643 that means you have a 2000 lbs. axle and will need 7 inch brakes. Brake Assembly # AKEBRK-2L and # AKEBRK-2R and the Hub and Drum Assembly # AKHD-545-2-EZ-1K will be what...
    view full answer...

  • Spindle, Brakes, and Mounting Flange for Use with Trailer Hub and Drum # 8-173-16UC3
  • The hub and drum assembly, # 8-173-16UC3, and electric trailer brakes # 23-48 and # 23-47 are compatible with each other so they will work together. Brake mounting flange # 4-34 is the correct flange for the brakes. However, welding on a brake mounting flange is a precision job that should be performed by a qualified professional. If the trailer is staying off road though it may not be as big of a concern. For a spindle you will want to use # R104BTREZ since it was made to work with...
    view full answer...

  • Hubs, Drums, Brakes and Spindle for a 2,000 lb Trailer Axle
  • Yes, the Electric Trailer Brake Kit, # AKEBRK-2, the Trailer Hub and Drum Assembly, # AKHD-545-2-EZ-2K, and the EZ Lube Spindle, # R104BTREZ, will work together. The brake mounting flange that you will want for this setup is part # 4-34 which should be welded to the end of the axle tube just behind the spindle. The flange must be welded perfectly square to the axle tube to ensure that the correct angle is kept with the camber of the axle tube, so be sure to have an experienced and qualified...
    view full answer...


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Info for this part was:

Expert Research:
Michael H
Installed by:
Cole B

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