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  1. Trailer Axles
  2. etrailer
  3. 3500 lbs
  4. 95 Inch Hub Face
  5. 5 on 4-1/2 Inch
  6. 80 Inch Spring Center
Trailer Axle w/ Electric Brakes - 4" Drop - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs
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Trailer Axle w/ Electric Brakes - 4" Drop - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs

Part Number: e45SR
$679.46
Trailer Axles
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Trailer axle measures 95" from hub-face-to-hub-face and 80" from spring-center-to-spring-center. Includes electric brake assemblies, hubs, drums, bearings, races, seals, and mounting hardware. Easy Grease spindles for simple lubrication. Great Prices for the best trailer axles from etrailer. Trailer Axle w/ Electric Brakes - 4" Drop - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs part number e45SR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (272)
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etrailer Trailer Axles - e45SR

Highlights

  • 3,500-lb Weight Capacity: Handles medium-duty loads for stable, steady towing.
  • 4" Drop Spindle: Lowers deck height so loading and unloading is easier.
  • 95" Hub Face x 80" Spring Center: Factory-set spacing for common trailer widths.
  • 5 on 4-1/2 Bolt Pattern: Matches standard 13"-15" wheels for easy wheel fitment.
  • Easy Grease Spindles: Built-in grease zerks keep bearings lubricated with less mess.
  • Electric Brakes Included: Pre-wired hubs and drums deliver reliable braking control.

Features to know about

Lower Deck Height for Easier Loading: 4" Drop Axle Design

Loading and unloading heavy gear gets simpler when the trailer deck sits lower. This axle’s 4" drop and underslung design—where the spring seats are welded to the underside—lowers the ride height so ramps are shallower and cargo stays steady. The 2-3/8" diameter round steel beam ties into your trailer’s suspension for a solid, level stance that makes towing more controlled.

Reliable Braking Made Simple: Electric Brakes with 10-15/16" Drums

Stopping power shouldn’t take extra work. The included electric brake assemblies bring consistent braking performance without the need for hydraulic lines. Each drum measures 10-15/16" in diameter by 2-11/16" wide and fits a 5 on 4-1/2" bolt pattern. With pre-greased bearings, races, seals, and lug nuts already installed, everything is ready to bolt up and go.

Built to Last Under Load: 3,500-lb Capacity High-Strength Steel Beam

The axle is made from high-strength steel with a 95" hub-face-to-hub-face length and 80" spring-center spacing. A slight bend in the beam creates a zero-camber angle so the tires keep even contact across the tread, which helps stability and tread life over long hauls. The 0.18" wall thickness gives it enough rigidity for steady tracking under full load.

Simple Maintenance for the Long Haul: Easy Grease Spindles

Keeping bearings in shape is quick thanks to the built-in grease zerks on the spindles. Just attach a grease gun and push fresh grease through without disassembly. The hubs are pre-packed, and the grease cap flange measures 1.988", so you can check or service them easily when it’s time.

Safety Tested and Ready to Roll: Certified for Performance

This axle assembly meets CSA, QAI, and SAE-N standards after thorough testing for braking and performance in real-world conditions. With everything welded, mounted, and aligned from the factory, it’s ready to replace a tired setup or anchor a fresh build with dependable, proven components.

Specs

Weight and Capacity

  • Weight capacity: 3,500 lbs

Dimensions

  • Hub-face-to-hub-face length: 95"
  • Spring-center-to-spring-center length: 80"
  • Spindle drop: 4"
  • Drum dimensions: 10-15/16" diameter x 2-11/16" wide
  • Grease cap flange diameter: 1.988"
  • Wheel stud dimensions: 1/2" diameter x 1-1/4" long
  • Axle diameter: 2-3/8"
  • Axle tube thickness: 0.18"
  • Wheel size: 13" to 15"

Technical diagram of a trailer axle showing labeled hub face (A) and spring center (B) measurement points used to determine axle length and width.

  • A — Hub face (A): Refers to the length of the axle measured from the base of one wheel stud to the base of the wheel stud on the opposite side of the axle (when hubs are mounted on the beam).
  • B — The spring center (B): Is the approximate width of your trailer. It is measured from the center of the spring seat on one side of the axle to the center of the seat on the other.

Bolt Pattern

  • Hub bolt pattern: 5 on 4-1/2"

Warranty

  • Limited lifetime warranty

Bearing, Race, and Seal Information

  • Inner bearing: L68149 (1.378" inner diameter)
  • Outer bearing: L44649 (1.063" inner diameter)
  • Inner race: L68111
  • Outer race: L44610
  • Grease seal: 58846
  • Grease seal inner diameter: 1.719"
  • Grease seal outer diameter: 2.565"

Note

  • Axle does not come fully assembled.

BD35RUW95.00080.000 etrailer by AxleTek 3,500 lb Axle Beam w 4" Drop - 95" Hub - 80" Sp Ctr

B10EA-21 AxleTek 10" x 2 1/4" LH Self-Adjusting Electric Brake Assembly - Drivers Side - 3.5K Axles

B10EA-22 AxleTek 10" x 2 1/4" RH Self-Adjusting Electric Brake Assembly - Passengers Side - 3.5K Axles

19-100 Hub-Drum Assembly Compl Boxed - 3.5K - 5 on 4.5 - PG EZ





Customer Satisfaction Score:

Ratings & Reviews

4.4

272 reviews
Review sort icon
Trailer axle measures 95" from hub-face-to-hub-face and 80" from spring-center-to-spring-center. Includes electric brake assemblies, hubs, drums, bearings, races, seals, and mounting hardware. Easy Grease spindles for simple lubrication.

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Worked great, fairly easy install, no p roblem!



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The order was shipped as promised and was complete and of good q1uality



by:

Excellent service quick delivery very happy with the whole process and will continue to order from this company again in the future



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Wrong axle sent did not need the 4" drop down.

Katrina D. profile picture

Katrina D.

11/14/2023

I am sorry to hear that this was not the correct axle set that you are needing. If you are needing an axle with no drop, I would recommend part # e52SR. This axle has most of the same specs as the axle you ordered, minus the drop. Let me get you over to our customer service department for them to look into what would best suite your needs.



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Great quality



by:

Not only is it not what I ordered 2 of the TA cayman parts and pieces in the advertisement. It doesn't say anything about coming in parts and pieces. I'm not a mechanic. Now I have to pay somebody to put it together. I think that's very poor business

Jenny N. profile picture

Jenny N.

11/15/2023

This axle will need to be welded onto the trailer and then the hubs with the brakes would be installed on the spindle. I do recommend having it professionally welded. We do have a FAQ that can help with installing the hubs and brakes.



by:

Good product so far but no instructions at all



by:

Everything was going great on my new axle install today, until it wasn't. You shiped me the wrong lock washers for the brake backing plate. The correct nuts but the washers are to small. I'll have to pick them up because the customer is expecting the with to be done be today.

Brooke M. profile picture
Etrailer Expert

Brooke M.

9/15/2023

I am so sorry about that--how frustrating! I will have our customer service team reach out to you.



by:

fast shipping great pricing



by:

Got it in all the pieces look great and shipping was fast. Originally said that I would receive it on Tues the 15th and actually got it on Sat the 12th.



by:

Product was exactly what I was after and helps me too get trailer back to work faster.



by:

The replacement axle is working very nicely. It is well engineered and quality’s is evident



by:

Shipping was super fast. Price was right but it comes unassembled. I had a few of the brake pieces come off and had to put them back together.



by:

Paige was a huge help in getting me what I needed and fast!
Got my new axle in a day and was back on the road.
You will not be disappointed with etrailer!



by:

Piece of cake to install. Pull out the old snapped axle install new axle. Bearings come pregreased.



by:

I wish I could give negative stars. My order arrived on time, but it was the wrong axle. The axle I ordered and paid for was a 3500 lb drop axle with electric brakes, they sent a bare 3500 lb drop axle. $[XX] difference. I immediately contacted customer service who required pictures of what I received. When I supplied them, they did not respond and even removed my order from their website so I can't track it to see if they're trying to make this right. They won't answer emails either because Ive sent a few. I'll try to get my credit card to refund me since they won't respond.



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I purchased this part about a year ago and it’s still going strong. Very happy with purchase and price point. Delivery was quick!



by:

GOOD SERVICE, VERY TIMELY DELIVERY



by:

Accurate and fast service
Received my
axle by the dates given to me



by:

Wrong item.



by:

Exactly what I ordered packaged nice and pregreased bearings.



by:

Happy with the product, not happy that we paid for a fully dressed axle and it came in parts for us to put together.



by:

I didn’t think to clarify, I expected this to be shipped as one ready to install assembly. What I received was multiple shipment and not quite all the parts. Customer service quickly resolved the missing items and assembly and install wasn’t terribly difficult so I’m not knocking the product. It is what I was sold.



by:

Awful service. Ordered an axle they sent a hitch. Cancelled order cause they weren’t going send axle out till they picked up the hitch lol. They still haven’t picked up and won’t refund money till ups picks up. Look around I found an axle place close by 30 minutes away with axles in stock. I will never use etrailer again!!!!!


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See what our Experts say about this etrailer Trailer Axles

  • What Is The Maximum Frame Width For A 225/75R15 Tire Size On A 3,500lb Axle With A 95" Hub Face
    Hey Bill, A 225/75R15 tire would have a 9.25" width and you need to have a minimum of 1" between the tire and frame so we'll add the two together for a 10.25" space needed for the tires on both sides. That being said you also have to figure in where the spring seats can sit on the axle, which can affect the frame width as well since spring seat have to sit in the middle of the frame rails. The spring center for a 3,500lb axle with a 4" drop would need to be spaced from the hub face a...
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  • Looking For New Axle With Brakes For 2000 Ranger Bass Boat Trailer
    Hey Jason, thanks for reaching out. We may have an axle that will work for you but I will need a bit more information in order to make a recommendation. Specifically, I will need to know the length of the current axle. Axles are measured across from hub-face to hub-face. I will also need to know the distance between the spring seats. Feel free to drop this info in the comments below and I am happy to look into it and see if we have anything for you. Our axles are round tube axles so you...
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  • Replacement 6,000LB Axle With 4 Drop Spindle and Electric Trailer Brakes
    The Trailer Axle w/ Electric Brakes # e45SR is the closest axle we have that meets the criteria that you gave me. This axle is 6,000lbs with a 4" drop. It has a spring center to spring center measurement of 74" and hub face to hub face of 89". It includes electric brakes and hubs with a 6 on 5-1/2" bolt pattern. The axle does include easy lube spindles that make greasing your bearings much easier. If this will not work please let me know your hub face dimension and wheel bolt pattern...
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  • Over Under Conversion Kit Needed To Lower The Height Of A Boat Trailer
    Hey Travis, Overslung suspensions have the leaf springs above the axle and underslung systems have the leaf springs below the axle. We offer conversions kits to switch between these styles, but you'll need to first measure the diameter of your axle to choose the correct kit; # K71-384-00 (2-3/8" diameter axles) or # K71-385-00 (3" diameter axles). If you're currently in the overslung position and want to switch to the underslung position then you can choose the appropriate kit and make...
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  • Do You Carry a Axle Rated for 3,500 with Hub Face to Hub Face of 94", of do I Need the 95"?
    Hello Robert, I would double check the measurement. I know that Dexter does make a 94" Hub Face that we do not carry for some reason. I attached an image showing where exactly to measure, or if the axle tag is still on there, feel free to send me a picture by replying directly to the email that you receive so I can take a look. If you end up coming up with 95", then then our Trailer Axle w/ Electric Brakes - Easy Grease - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs # e52SR would be...
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  • Replacement Spindle and Axle Options For a 3,500LB Trailer Axle With Bent 4 Drop Spindle
    It appears that the #84 E-Z Lube Spindle # TRU87FR is the correct spindle for your axle. You can confirm that this is the correct part by verifying the measurements of the spindle and brake flange. The landing for the grease seal is 1.719, the inner bearing is 1.378" and the outer bearing is 1.063". The brake flange bolts are 2-7/8" on center vertically and horizontally. This will also have a grease zerk allowing you to more easily fill your spindle and bearings with grease. Depending...
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  • Will 3,500 lb Axle Trailer Axle e45SR Work With 81 Inch Spring Centers
    The 3,500 lb capacity Trailer Axle w/ Electric Brakes # e45SR has spring centers that are 80 inches apart so it wouldn't work as-is with 81 inch spring centers. You could use it but you'd have have its spring centers removed and new Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter # TRSS238 welded on.
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  • Comparing etrailer And Dexter 3,500lb 4 Drop Axles
    The two options you're referring to, the Dexter Trailer Axle w/ Electric Brakes # 7685269-EB and Trailer Axle w/ Electric Brakes # e52SR are essentially the same when it comes to their specs. The only difference is the manufacturer with one being Dexter, which is a very well known brand in the industry, and the other being manufactured by Axle-Tek. Having worked with both I can say there isn't a real distinction in quality so I tend to go with the lower cost of with Axle-Tek components....
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  • How To Adjust Brakes On Trailer Axle w/ Electric Brakes 4 Drop - 3,500 lbs - 5 on 4-1/2
    I have attached a video for you below which shows the process to adjust electric trailer like those on the Trailer Axle w/ Electric Brakes - 4" Drop - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs part # e45SR. If you skip to the 4:40 mark you can see the process.
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  • Availability of a 3,500LB Trailer Axle With 4 Inch Drop, 95 Inch Hub Face, and 81 Spring Center
    I see you were looking at the 3,500lb Trailer Axle w/ Electric Brakes # e45SR. While this does have the 95" hub face you are needing the spring seats are spaced 80" versus 81". You will need to remove both spring seats and have 2 new Seats # TRSS238 welded in at the 81" spring center position. We currently do not carry any axles with the spring seats already at 81".
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  • Recommended 95" 3,500LB Drop Axle For a Tandem Axle Trailer Build
    Dexter is a great company and provide a made in the USA product. It really depends on your preference and how long you plan on keeping the trailer. I am a build it right the first time kinda guy so I would go with 2 Dexter Axle # 7685269, 4 Hubs # 84546UC3-EZ and 2 of the Nev-R-Adjust Electric Trailer Brake kits # 23-468-469.
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  • Replacement 3,500 lbs Axle w/ 4 Inch Drop for a Tandem Axle Trailer w/ a 5 on 4-1/2 Bolt Pattern
    I have a solution for you and a great axle but it is going to require you to move your spring seats. It is the Trailer Axle w/ Electric Brakes item # e45SR. This axle has spring seats mounted at 80". It has a 4" drop with hubs that have a 5 on 4-1/2 bolt pattern. This axle kit includes electric brakes as well. The hub face to hub face measurement is 95" which will not be an issue as you will only have a 1/4" extra on either side. I have linked an installation video below. If your tandem...
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  • Replacement Axle Options For a Concession Trailer Having 95" Hub Face, 4" Drop and 76" Spring Center
    With your axle being a 2-1/2" diameter it sounds like you will need either our etrailer Axle # e45SR or the Dexter # 7685269-EB. Both of these are 3,500lb axles with the 4" drop a 95" hub face and electric brakes included. You will only need to have 2 new Spring Seats # TRSS238 welded on the axle at the 76" spring center you are needing. The current spring seats are welded from the factory at 80" but you are able to move them as not all trailers will have the same measurements. I do recommend...
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  • Install Video for Trailer Axle w/ Electric Brakes - 4 Drop - 5 on 4-1/2 Bolt Pattern - 95 Long
    We don't have an install video on this exact axle, the Trailer Axle w/ Electric Brakes - 4" Drop - 5 on 4-1/2 Bolt Pattern - 95" Long - 3,500 lbs part # e45SR, but I did do one on a similar style which I have attached for you below. It won't be the exact same but fairly close. This axle assembly will be just as good as a Dexter without the extra cost.
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  • Trailer Brakes and Hubs For Adding Electric Trailer Brakes To a Dump Trailer With 2-3/8" Axle Tubes
    If you do indeed have a 3,500lb axle it will use a 10" Brake Kit # AKEBRK-35-SA per axle on your dump trailer. It is best to remove one of your hubs as this will allow you to measure for the bearings and grease seal and be able to verify you have a Brake Flange # 4-35 for the brake assemblies to mount. A 3,500lb axle will have a Grease Seal # 58846(ID 1.719" / OD 2.565"), Inner Bearing # L68149(ID 1.378") and Outer Bearing # L44649(ID 1.063"). If this matches what you have you will need...
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  • 3,500LB Trailer Axle With 5 on 4-1/2" Bolt Pattern & 4" Drop With Electric Brakes 81" Spring Center
    Based on your hubs it sounds like you have a 3,500lb axle since you have the 5 on 4-1/2" bolt pattern. It sounds like the Trailer Axle # e45SR is the size you are needing. This has a hub face spread of 95" and the spring seats are 80" on center. These can be removed and new Seats # TRSS238 welded on to the 81" measurement you need which will prevent the additional cost and wait if special ordering an axle.
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  • Info Needed to Pick Out Trailer Axles for Airstream Safari 25SS
    We don't have a way to look up exactly what axle you need based on what you listed but we can still help. When picking out an axle for a trailer you'll need to know the overall length of it from hub face to hub face as well as the distance between the spring seat centers to pick out correct size. You'd also need to know the capacity. Based on your GVWR 6k or 7k axles would easily work fine. I also attached a link to a page with all of the axles we carry.
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  • Do You Have a 3,500LB Axle with 4" Drop and 5 on 4-1/2" Bolt Pattern with Electric Brakes, 95" Hub F
    All of our 3,500LB, 4" drop axles with 95" hub face like our etrailer Axle # e45SR you found are going to have a 80" spring center. As we do not offer custom axles you can easily have the springs seats removed and 2 new Seats # TRSS238 installed at your 81" spring center. This is typically cheaper and much faster than ordering a custom axle from a local dealer. I recommend upgrading to the U-Bolt Kit # CE23002 with galvanized spring plates and zinc coated hardware to resist corrosion.
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  • Hanger Kit, Leaf Springs, and U-Bolt Kit for Dexter 3,500 lb Trailer Axle
    The Dexter axle part # 35545I-ST-89 is a 3,500 lb trailer axle so for a leaf spring that would work well with that you'd want the # e45SR which is the same rating and is 25-1/8 inches long. Then for a tandem hanger kit you'd want the # AP233-H248 and the U-bolt kit part # CE23002.
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Do you have a question about this Trailer Axle?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video by:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Carrie F
Updated by:
Carrie F
Employee Conner L
Installed by:
Conner L
Employee Mike S
Written by:
Mike S

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