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  1. Trailer Axles
  2. Dexter
  3. 2000 lbs
  4. 60 Inch Long
  5. 4 on 4 Inch
  6. No Drop or Lift
Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs

Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs

Item # 20440I-ST-60
Our Price: $250.37
Trailer Axles
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Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs No Drop or Lift 20440I-ST-60
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Round trailer axle measures 60" from hub face to hub face and 48" from spring center to spring center. Includes idler hubs - with bearings, races, and seals - for 10" to 13" wheels. Great Prices for the best trailer axles from Dexter. Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs part number 20440I-ST-60 can be ordered online at or call 1-800-940-8924 for expert service.
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Dexter Trailer Axles - 20440I-ST-60

  • 2000 lbs
  • 60 Inch Long
  • 4 on 4 Inch
  • No Drop or Lift
  • 48 Inch Long
  • Leaf Spring Suspension
  • Idler Hubs
  • Dexter
  • Standard Spindles

Round trailer axle measures 60" from hub face to hub face and 48" from spring center to spring center. Includes idler hubs - with bearings, races, and seals - for 10" to 13" wheels.


  • Round axle beam acts as part of your trailer's suspension system
    • Replace an axle on your trailer
    • Fabricate a suspension to fit your application
  • High-strength steel construction
  • Bend in axle creates zero camber angle for even road-to-tread contact across the width of your trailer's tires
    • Best for straight-line acceleration and steady, controlled towing
  • Underslung design - spring seats welded to underside of axle for mounting leaf springs
    • Low ride height makes it easier to load and unload your trailer
  • Straight spindle - no drop
    • Standard grease application
  • Spring seats and spindles are welded on
  • Cast iron idler hubs are sturdy and durable
    • Bearings, races, seals, grease caps, wheel studs, lug nuts, and marine-grade wheel bearing grease included
  • Limited 2-year warranty


  • Weight capacity: 2,000 lbs
  • Hub-face-to-hub-face length: 60"
  • Spring-center-to-spring-center length: 48"
  • Hub bolt pattern: 4 on 4"
  • Tubing outer diameter: 1-3/4"
  • Spindle size: 1-1/16"
  • Wheel stud diameter: 1/2"
  • Wheel size: 10" - 13"
  • Grease cap outer diameter: 1.986"

Bearing, Race, and Seal Information

  • Bearings
    • Inner bearing: L44649
    • Outer bearing: L44649
  • Races
    • Inner race: L44610
    • Outer race: L44610
  • Seal: 10-9
    • Inner diameter: 1.50"
    • Outer diameter: 1.987"

Axle Dimensions

Hub Face and Spring Center Measurements on Standard Trailer Axle

There are multiple ways to measure the length of an axle beam, but the hub-face-to-hub-face and spring-center-to-spring-center lengths are the most accurate. 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.

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. This axle beam comes with the spring seats welded on.

If you are 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 the aforementioned lengths.


Dexters are made of high-strength steel and come with spindles and spring seats welded on. The spring seats are attached to the underside of the axle so that the leaf springs (sold separately) can mount beneath the axle. The result of this underslung design is a trailer that rides a bit lower for quick and easy loading and unloading.

Each axle is manufactured to create a certain camber angle. This ensures that the angle of the wheels is correct for your towing needs. Because the primary concern when towing is maintaining controlled, in-line movement, each axle is made so that your trailer's tires will run along the pavement evenly, with contact across the width of the tread. The result is excellent straight-line acceleration for steady, in-line tracking. You might notice the bend near the center of the axle; this is what ensures the proper camber angle. Having the center ride a bit higher and the sides of the axle bent lower allows the axle to give just enough to compensate for the load.

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"

T20BTR-6048 Dexter Replacement Axle Beam - 60" Hub Face - 48" Spring Center - 2,000 lbs

8-91-05UC1 Trailer Hub Assembly for 2,000-lb Axles - 4 on 4 - L44649

457458 Loctite Viper Lube High Performace Synthetic Lubricant - 14.1 oz Can

Customer Reviews

Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs - 20440I-ST-60

Average Customer Rating:  4.8 out of 5 stars   (361 Customer Reviews)

Round trailer axle measures 60" from hub face to hub face and 48" from spring center to spring center. Includes idler hubs - with bearings, races, and seals - for 10" to 13" wheels.


Great Service, very helpful, axle fit perfectly dimensions were exact.
shipped out and arrived earlier that promised.
Dexter did not include "D washers and E- Trailer sent them to me right away so I could finish my trailer project.

Overall Great Jo will do business with them again.



so far so good, just did a shake down test, all good. The trailer went straight and true. Now just waiting on my other order to come in so I can put some weight on the truck and trailer for the real test.


The axle came right on time when they said it would be there. It was easy to put together and all the parts were there. It was helpful that there was grease included and plenty of it! I also appreciated that the company sent new lug nuts for the tire. The previous ones were pretty old. I was trying to put a 2016 axle on a 1974 hand built trailer and this axle fit perfectly. I will definitely use etrailer again.

Matthew C.


Still working great!!


Well painted, one hub lock screw thread bad machined from factory.
50lb bearing nut makes it in the beginning stif turning . Normal, will ease with use if bearinf are packed with sticky marine grease.

Well build and packed even with UPS tormenting the outer box shell. LOL

In etrailer I beleave sind 2016 after so many counter dealer headaches and $$$$$ pricing.


Service by etrailer was very good. As for the dexter parts, there was some questions about inner seals to retain grease. All good so far.


Great product!


good price, fast shipping. Way to easy!

Michael S.


Has worked perfect over a long summer of grass cutting. Strong, solid and complete. Cant ask for more. Used it on a tow behind mower project.


Quick shipping. Seems to be a quality product. Good price. Excellent customer service and question answering. Would be 5 stars if I could have found an axle short enough for my project. I had to cut down the 60” one I ordered. Not necessarily their fault, I’m just building a small trailer. Will order here again for sure


Made my trailer new again. Perfect fit, holding up well.


Very nice correspondence and fast shipping
Awesome to work with.


Easy to follow instruction.
I am proud
I did it!.





After years of hauling firewood my Harbor Freight Trailer Axle fatigued and cracked. The Dexter Axle from etrailer got me back on the trail. Welded leaf spring seats on the opposite side of the axle at a spacing of 46.5 inches. The wheels stick out an additional 3/4 inch per side. The trailer now rides like a Cadillac. Very excited about putting my faithful trailer back in service, with a serious axle underneath that I have confidence in. The folks at etrailer very helpful and responsive. Thanks


I purchased a number of products from etrailer and I am very pleased with them all. The shipper lost my axle. When I contacted etrailer customer service, they handled my problem quickly and I had a replacement axle in a couple days. Well done!

The products were all of high quality and the assemble was much easier as a result. I have attached a few pictures of the build for those interested.

Thanks etrailer for your great products and service!!


Everything was as expected and we were able to repair our trailer without issues. Shipping was prompt and the service was great. Received the package one day earlier than initially promised


These axles work great. I replaced three axles on my trailer last fall (2022) with these axles. I was able to install the new axles and springs in about 3 hours because everything matched up very nicely - thanks to the help of the folks at etrailer.


Had all parts necessary to add a new axle to my trailer.Parts are well made and easy to install.


I use the trailer almost every weekend and have had no issues so far.


I ordered this axle as a replacement for the one on my 1996 Haulin' 4x8 utility trailer. I'd neglected to maintain the bearings and when one went it destroyed my axle. This axle was an exact fit but the spring seats needed to be moved to the top of the axle. I ordered new seats and U-bolt mounting kit as well as the axle. I found a welder to remove the original spring seats and weld the new ones to match my application. Installation was a snap, I just followed the video included on the web site. Ordering my parts from etrailer really saved me $$ over the quotes I'd received from local shops.


Quick delivery with tracking link! Great product and price!! Easy process to install axle and hubs. I would have appreciated a torque specification for the U-Bolts and Lug nuts in the video. I didn't take the time to search other locations or Q&A.

Tip: 1-1/2 " PVC makes a great tool to seat the grease seals. I used my 28MM socket, it was very close to size. I decided to use 2" Schedule 40 PVC pipe to install the E-Z Lube dust seal. I have many tools however no wooden hammers.


Product seems to be built well. I was missing a set of outer bearings that I had to get from a local tractor supply due to time constraints. They were missing when shipped to me. I have been happy so far with this product as I have pulled my home built teaardrop on it. I have traveled over 3k miles with it as well as a tire set I purchased from etrailer.
Contender ST205/75R15 Radial Tire w 15"
Good sturdy wheels and tires and they look good in person.


Really good solid axle... I needed the mounting tabs moved and had a metal fabricator do the work for $20.00. This was used on an old boat trailer that I turned into a utility trailer. Also swapped out the springs with ones purchased from etrailer too. To complete the package I ordered (3) 165/65-8 trailer tires. The trailer tows straight and hauls everything I've ever needed to.


So far the hubs haven’t been delivered but I got the axel early which was nice - just waiting now for the rest but I imagine all will be well when they arrive - the only reason for the 4 stars is the separated delivery of the axel and hub.

Show More Reviews

See what our Experts say about this Dexter Trailer Axles

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    The Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs # 20440I-ST-60 is powder coated, but not galvanized. The best we can do to make sure it wears well with all the salt water is to instead use the same Dexter Trailer Axle Beam with Standard Spindles - 60" Long - 2,000 lbs # T20BTR-6048 but change out the assemblies. You will want the Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - Galvanized # AKIHUB-440-2-G-2K for that additional corrosion...
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  • Upgrading the Axle on 4x8 Trailer
    In order to find the correct axle, you will need to know the dimensions from hub face to hub face and spring center to spring center, like in the photo I've added. I've also attached a link to our page with each of our available axles so you can find the correct fit.
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  • Trailer Axle With 2000 Pound Weight Capacity and 60 Inch Hub Face
    For a 2000 pound axle with a hub-face-to-hub-face length of 60 inches and a 4 on 4 bolt pattern Dexter Axle # 20440I-ST-60 is what you're looking for. This comes with the hubs, bearings, races, and seals. For an axle without the hubs use # T20BTR-6048. For a U-Bolt Kit to mount the axle you can use # APUBR-10
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  • Can Spring Seats be Removed and Welded On in Different Spots on Dexter Trailer Axle 20440I-ST-60
    Yes! You can weld the springs seats to a different location on Dexter trailer axle # 20440I-ST-60. But instead of cutting off the ones on the axle and welding them back on I recommend getting new springs seats, # TRSS175 (sold in quantities of 1), and welding them on in the proper position. This will ensure that the springs seats are in good shape.
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    We do offer replacement axles with a 60-inch measurement (measured from hub face to hub face when hubs are installed) and with a 48-inch measurement from spring center to spring center, which is the closest available to your 50-inch dimension. The kit you referenced, Dexter # 20440I-ST-60, includes the axle, idler hubs, bearings, races, seals, grease caps, wheel studs, lug nuts, and marine-grade wheel bearing grease. The link at right will show you all axle kits in this size, all of which...
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  • New axle
    The CE Smith Trailer Axle Beam, # CE33201GA, will work well for your boat trailer as long as the length and weight capacity match your current axle. You will need to measure from hub face to hub face and then from the spring seat centers to determine which axle will be the best option. You will also need to know what bolt pattern you have on your current hubs. I attached a help article on how to determine this as well. If the CE Smith axle matches the specs of your current axle, then...
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  • How to Orient Axle for Installation
    When installing an axle like the Dexter Trailer Axle with Idler Hubs # 20440I-ST-60, you will want the arched part of the axle to be oriented further away from the ground with the spring seats closer to the ground (see attached picture). I have also attached a video of an axle being installed that you can reference. Once you put a load on your trailer your axle will start to straighten out due to the downward force.
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  • Does It Matter Which Way the Dexter Trailer Axles Are Installed
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  • Determining Type and Weight Capacity of Trailer Leaf Springs
    The two leaf spring types you described are known as double-eye and slipper types, and they are used for different applications. You can refer to the two linked articles on trailer suspensions for lots more info on both types of trailer suspension. I also linked our main page for trailer leaf springs, both types. Click on your spring type and width at the top of the page to see all products in that category. You want to select springs based on the axle weight rating, which is usually found...
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  • Trailer Axle Rated for at Least 1,500lbs and 48 from Spring Seat Center to Spring Seat Center
    We have a couple of axles that may work for you, # 20440I-ST-60 or # 20440I-EZ-60. These axles are 60 inches long, hub face to hub face, and 48 inches spring center to spring center. You will want to double check the spring seat measurement and if it is actually closer to 48 inches then either of these axles will work. Otherwise the spring seats would have to be removed and welded back on at the proper spacing by a qualified professional welder. Both axles come with idler hubs with a 4...
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  • Can a Trailer Install an Axle that Measures 4 inches Longer Overall
    If the 48 inch spring center dimension of the Axle part # 20440I-ST-60 matches what your old axle has this axle will fit your trailer. Since the hub face dimension is 4 inches total longer you would end up with your wheels/tire sticking out 2 inches further on your trailer. If that wouldn't interfere with anything like fenders then the axle would work just fine.
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  • 4 on 4 Trailer Axle for a Custom Built Trailer to Pull Boat on a Beach
    The axles that we have are going to have a 4 on 4 bolt pattern like on the Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern # 20440I-ST-60. There is no "standard" ATV wheel so as long as the ATV wheel you want to use has the 4 on 4 pattern you will be good. With the # 20440I-ST-60 you would also need to get leaf springs, hangers and U-bolts. I actually have a different route that I recommend going. I recommend using the Timbren Axle-Less Trailer Suspension System with Hubs - 4...
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  • Availability of Replacement Hub with LM12749 Inner and JL26749 Outer Bearing
    I checked our inventory and it looks like we do not offer a hub with an outer bearing that will match the outer bearing dimension on your trailer spindle. That probably means you'll have a really hard time finding replacement parts, since we do carry a large selection for the most popular set-ups on the road today. The only solution I could offer would be to replace your axle altogether with one whose spindles are more common and for which parts are readily available today. If you're interested...
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  • Recommended Replacement Axles and Leaf Springs for Boat Trailer with Dual 2,000 lb Axles
    If your axles are 60 inches from hub face to hub face and 48 inches from center of spring to spring, then I recommend the Dexter Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,000 lbs # 20545I-ST-60-10 or the 4 bolt hub version # 20440I-ST-60. If you have longer axles with the hub face to hub face measuring 72 inches with spring centers at 58 inches, then you will want # 20440I-ST-72 for 4 bolt hubs. With any of these axles, I recommend the hardware # CE23000. I've...
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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S

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