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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Call 800-298-8924 to order Redline accessories and parts part number 4-34 or order online at 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 (10)
  • Q & A (52)
  • Videos (1)
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Redline Accessories and Parts - 4-34

  • Trailer Brakes
  • Disc Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Redline
  • Hardware
  • Mounting Flange
  • 7 Inch
  • 1-3/4 Inch Diameter Axle

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   (10 Customer Reviews)

- 4-34

I had to replace the old hydraulic disc brakes on my Tryton 20' snowmobile trailer and need to add new mounting plates for the new electric drum brakes. These worked great. Cut the old mounts off the spindle and welded these on. A whole lot easier than making from scratch!!! 703692

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

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Works fine 493005

- 4-34

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

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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

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

- 4-34

Look just like it is pictured 218583

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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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Excellent Product 122645

- 4-34

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


Ask the Experts about this Redline Accessories and Parts

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  • 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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  • 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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  • Electric Trailer Brakes for Boat Trailer With 2,000 lb Axles
  • Thanks for the photo and it looks like you do have 2,000 lb axles so you can use Dexter Electric Trailer Brake Kit - 7" - Left and Right Hand Assemblies - 2,000 lbs # 23-47-48 so long as you have a 4-bolt brake mounting flange such as the Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K # 4-34 as well as a 7" hub and drum like the Dexter Trailer Hub and Drum Assembly for 2,000-lb Axles - 7" - 5 on 4-1/2 # 8-257-5UC3. If you need a new hub and drum assembly you do need to know...
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  • Availability of 4 Bolt Mounting Flange for Electric Brake Assemblies
  • It sounds like you are looking for a brake mounting flange for your trailer axle. For 4 bolt mounting flanges, we have the following plates available: For 3-1/2 inch axles: # 4-50 For 3 inch axles: # DM52415 For 2-3/8 inch axles: # 4-35 For 2-3/4 inch axles: # DM60124 For 1-3/4 inch axles: # 4-34 Brake mount flanges will need to be welded to the end of your axle and will provide a secure mounting place for the brake assemblies. I recommend having a qualified welder perform the...
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  • Wiring for Curt Echo Mobile Wireless Brake Controller and Adding Electric Brakes to a Trailer
  • The Curt Echo Brake Controller part # C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part # C56217. The white wire from the 7-way plug needs to be grounded to a clean bare metal surface on the vehicle's frame. You are correct, the black wire from the 7-way connector needs to be extended from the plug into the engine cavity and to a 40 amp circuit part # 9510...
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  • 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...
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  • What Parts Are Needed To Add Brakes To A 1997 Coleman Destiny Pop-Up Camper
  • To add electric brakes to the Coleman Destiny Bayport pop-up camper, you will need a few pieces of information. You will will need to know the weight capacity of the axle, bolt pattern of the wheels, and whether or not it has brake flanges already and their bolt pattern. If no brake flanges then you will have to either replace the axle with one that does or you can purchase brake flanges like Item # 4-34 and have a qualified welder weld them to the axle. After sorting out what...
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  • Replacement Brake Assembly Parts for 2800 lbs Philips/Dexter Axle with 1-1/4 Inch Deep Hubs
  • You will want the Replacement Brake Spring Set for Dexter 10" x 1-1/2" Electric Trailer Brake Assembly # K71-362-00. Then you will want the Replacement Trailer Brake Magnet Kit for 7" Brake Assemblies # BP01-068 due to the thinner hubs instead of the traditional 10 x 2-1/4 inch hubs. That guide for the anchor post is not available as a replacement part from any of our manufacturers. Your only other option is to replace the assemblies with the Dexter Electric Trailer Brake Kit - 10"...
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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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  • Compatible 2,200 lb E-Z Lube Axle, Hub and Drum and Electric Brakes
  • The 2,200 lb capacity Dexter Trailer Idler Axle Beam with EZ-Lube Spindles # T20BTR-EZ-6048 is not compatible with the hub and brakes you referenced, so it will require a couple of different parts, though you can use Brake Mounting Flange # 4-34. The axle has BTR spindles so you would need Dexter Trailer Hub and Drum Assembly for 2,200-lb E-Z Lube Axles # 8-173-16UC3-EZ which are compatible with 7" x 1-1/4" brake assemblies. For that you will need the Dexter Electric Trailer Brake Kit...
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  • How to Find the Correct Brake Mounting Flange
  • Capacity is what will have the capacity as opposed to the spindle, and the correct brake mounting flange will depend on the diameter of your axle. Since you mentioned a 3,500 lbs I assume that is your axle's capacity and typically those have 2-3/8" diameters. For that there is the Brake Mounting Flange for 2-3/8" Round Axle # 4-35. We don't have any flanges for 2" axles, but the other possibility is the Brake Mounting Flange for 1-3/4" Round Trailer Axles # 4-34 which is the typical...
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  • Replacement Axle with Hydraulic Drum Brakes on a 2,200 Lb Boat Trailer
  • I have the perfect replacment trailer axle for your boat trailer. For this, I recommend using the Dexter Trailer Axle part # T20BTR-7258. The Dexter trailer axle measures 72" from the face of each hub and 58" from the center of each spring seat. The measurements you gave are likely the same as what is listed above because the start of each measurement could vary slightly from person to person. The outside diameter of this trailer axle is 1.75" which should be what is on your trailer...
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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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  • 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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  • 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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  • 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.
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  • Parts Needed to Add Electric Drum Brakes to a 2,000 Lb. Trailer Axle
  • In order to determine the correct axle for your trailer you will need to take a few measurements. The first measurement will be the overall length of your axle from the face of each hub. The other measnuent you will need to determine is the distance from the center of each spring hole. These two measurements will then be used to ensure you have selected the proper replacement axle. We have two different axle lengths with a 2,000 weight capacity. The part # T20BTR-6048 measures 60" from...
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  • Adding Electric Brakes to 1999 Coleman Santa Fe Pop-Up Camper 3389
  • Thank you for providing the bearing numbers and other part numbers from the repair parts manual for your 1999 Coleman Grand Touring Series Santa Fe 3389 Pop-Up camper. Based on the bearings and bolt pattern for your existing idler hubs, we can determine the correct parts to add electric brakes to your trailer. The components needed to add electric brakes to a trailer are an electric brake compatible hub and drum, brake assemblies, a brake mounting flange, trailer wiring, a breakaway...
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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 Find Wheel Bolt Pattern to Find the Correct Replacement Trailer Brakes
  • 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 to Add Electric Drum Brakes to a 5 x 8 Utility Trailer
  • We do have all the items you need to add electric drum brakes to your existing 2200-lb axle and the linked article outlines it all. But for making this process as easy and foolproof as possible you might consider simply replacing the entire axle with one that already has brake flanges, hub/drums and brakes. For example, Dexter kit # 35545E-ST-EZ-89 is an 89-inch 3500-lb axle with 5-on-4-1/2 hubs and 10-inch electric brakes that comes complete with bearings, races and seals. If you arrange...
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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 have either a 3500 lbs. or something closer to a 2000 lbs. axle. Before purchasing anything you 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 need 7 inch brakes. Brake Assembly # AKEBRK-2L and # AKEBRK-2R and the Hub and Drum Assembly # AKHD-545-2-EZ-1K are what you need. If...
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  • Hub, Mounting Flange and Brake Assembly Recommendation for the EZ Lube Spindle part # R104BTREZ
  • All of the parts you listed are compatible with each other and would be the correct ones for you to use. The EZ Lube Spindle part # R104BTREZ 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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  • Adding Trailer Brakes to a Timbren Axle-Less Trailer Suspension System
  • Yes, it is possible to add brakes Timren Axel-Less Trailer Suspension System. The Timbren Axle-Less Trailer Suspension System - 4" Lift Spindle w/Flange - Off-Road Tires - 2.2K, # ASR1THDS03, that you were looking at has the brake flange mounted, so it is ready to add brake assembly and hubs to. I'd recommend getting the Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA . You would then pair these with the Trailer Hub...
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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...
    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...

  • Brake Flange that Can Fit to Square Axle that is 1.5 inches by 1.5 inches
  • You'd have to go with a brake mounting flange designed for a round axle since we don't have any specifically for square axles. Most likely some modifications will need to be made but since only people with experience installing brake flanges should perform this install they'll have a way to make it work. Using a flange with a smaller center hole like the part # 4-34 might be the way to go since it would give you more metal to work with to get it to fit.
    view full answer...

  • 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...
    view full answer...

  • 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...
    view full answer...

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Info for this part was:

Expert Research:
Michael H
Installed by:
Cole B

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