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  1. Trailer Axles
  2. Dexter
  3. 2000 lbs
  4. 72 Inch Long
  5. 58 Inch Long
  6. 5 on 4-1/2 Inch
Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs

Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs

Item # 20545I-EZ-72-15
Our Price: $290.57
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20545I-EZ-72-15 - 5 on 4-1/2 Inch Dexter Trailer Axles
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Straight trailer axle measures 72" from hub face to hub face and 58" from spring center to spring center. Includes idler hubs - with bearings, races, and seals - for 13" to 15" wheels. EZ-Lube spindles for simple lubrication. Great Prices for the best trailer axles from Dexter. Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs part number 20545I-EZ-72-15 can be ordered online at or call 1-800-940-8924 for expert service.
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Dexter Trailer Axles - 20545I-EZ-72-15

  • 2000 lbs
  • 72 Inch Long
  • 58 Inch Long
  • 5 on 4-1/2 Inch
  • No Drop or Lift
  • Leaf Spring Suspension
  • Idler Hubs
  • Dexter
  • Easy Lube Spindles

Straight trailer axle measures 72" from hub face to hub face and 58" from spring center to spring center. Includes idler hubs - with bearings, races, and seals - for 13" to 15" wheels. EZ-Lube spindles for simple lubrication.


  • 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, EZ-Lube spindles - no drop
    • Built-in grease zerks for simple lubrication
  • 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: 72"
  • Spring-center-to-spring-center length: 58"
  • Hub bolt pattern: 5 on 4-1/2"
  • Tubing outer diameter: 1-3/4"
  • Spindle size: 1-1/16"
  • Grease cap outer diameter: 1.986"
  • Wheel stud diameter: 1/2"
  • 6-1/2" Diameter hub flange, for use with 13" - 15" wheels

Bearing, Race, and Seal Information

  • Bearings
    • Inner bearing: L44649
    • Outer bearing: L44649
  • Races
    • Inner race: L44610
    • Outer race: L44610
  • Seal: 10-60
    • 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-EZ-7258 Dexter Replacement Axle Beam - Easy Lube - 72" Hub Face - 58" Spring Center - 2,000 lbs

8-258-5UC1-EZ Dexter Easy Lube Trailer Hub Assembly for 13" to 15" Wheels - 2,000-lb Axles - 5 on 4-1/2 - L44649

L457457 Loctite Viper Lube High Performace Synthetic Lubricant - 14 oz Cartridge

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs - 20545I-EZ-72-15

Average Customer Rating:  4.8 out of 5 stars   (363 Customer Reviews)

Straight trailer axle measures 72" from hub face to hub face and 58" from spring center to spring center. Includes idler hubs - with bearings, races, and seals - for 13" to 15" wheels. EZ-Lube spindles for simple lubrication.


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


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.


Can’t wait to order the rest of my trailer accessories for my camper


This axle was the closest fit to what I needed for my drift boat trailer. I had to modify the trailer a bit, but overall it was an easy install. The only problem was that one of the grease cups got dented during shipping and wouldn't fit. I called the company and was sent a new one. I got a little grief from the person who took my call because I'd tossed the rubber plug out when I threw the dented cup away. I could have done without the lecture that I got from the call taker.


I'm very happy with the axle w/ idler hubs installed on my RoadRunner 2000lb trailer hauling my 16ft Boston Whaler. The package arrived missing one wheel bearing and a damaged dust cap however eTrailer customer service was quick to resolve the issue. I'm happy with the customer service I received and after watching eTrailer's DIY videos, installing the new axle was a breeze. I would recommend eTrailer to anybody needing quick cost effective trailer repair/upgrades.


I purchased a replacement axle for my Luodo 3500lb Trailer. Geoffrey was great and very helpful. The only thing was the new axle has a 2" diameter replacing a 3" diameter axle. I wish I new that when I made the purchase. I would of bought new u-bolts and mounting hardware as well. No big deal, light weight trailer. Other than that I will be doing business with them again. Excellent service...They also sent me a tube of grease for the new hubs and bearings that I was not expecting. Thank you


Great experience with the whole process. Ultra friendly and knowledgeable staff as I had many questions concerning the installation of my axel. I’ll be using them now that I know they deal with RVs as well


A perfect replacement for a 25 year old trailer! Installation was very straight forward and simple.


I purchased an entire axle 'package' so I could put a leaf spring suspension under my vintage 1980 utility trailer that never had a suspension before.

All of the products arrived securely packaged and I received everything I had ordered. The parts all went together exactly as they should, and the Etrailer video's and .PDF Instruction files were very helpful in assemblying everything.

I'd definitely recommend these axle/suspension products!



This has put my trailer back on the road. Took about an hour to install, including hand packing the four wheel bearings with grease. This may not have been necessary with the EZ-Lube option, but I'm really picky about bearing lubrication. After installation was complete, I did use the fitting on the end of the spindle to pump the hubs full of grease, and I'm sure this will negate any need to disassemble the hubs in the future just to grease the bearings.


All items were well packaged. I was happy that etrailer called me to let me know that a few items were back ordered and an expected shipping date to see if it still suited my schedule (which it did). I think all the items shipped the next day. Shipping was very fast and FREE. I will use etrailer for any future towing needs.
Excellent communication and the helpful staff make this a great business to deal with.


Easy installation, product operating as it should pleased with price!

Bill G.


No problems still working like new


good quality and great installation videos the only issues were grease was crushed in box and retaining ring was missing but the quick response of the support staff in getting another out to me was fantastic. Job well done


The trailer axle assembly was sent promptly and was easy to assemble. Great quality and easy to put together with the helpful videos you have on the etrailer website. Thanks for everything!


Very user friendly,I had two orders,both arrived earlier than expected, all parts and everything was as described, packaged very well,seems to be good quality...would recommend to anyone looking for quality trailer parts at good cost..Thank you!!


Used for a replacement axle it fit like a glove no problems very good service.


Axle and all parts still holding up!


The axle fit perfectly and delivery was very quick. It would have been helpful if I was told the axle was round as my damaged axle was square. That means I had to scramble around locally and find u-bolts that fit as my square bolts wouldn’t hold the new axle securely....


I got just what I needed and I use the trailer a lot


Like a brand new trailer


Just what I needed


Excellent axle. Easy to install. No problems after one year and more than 1000+ miles.


Please be patient ,will be back with good story and pictures soon.I have VA appointments Im going thru right now. Thankyou


Product knowledge is an important to me, understanding the diffence in two parts that appear the same is why you need to shop here too. Getting your parts the next day with free shipping. I will let you add that up in your own head.


Product is excellent. Shipping is fast

Show More Reviews

See what our Experts say about this Dexter Trailer Axles

  • Recommended Replacement Axle for 72 Inch Long Axle with 2000-lbs Capacity
    I may have a solution for you, but the dimensions you've mentioned would require a custom built axle because of the 61" spring seat center on center; there are stock axles that are 72" hub face to hub face but the spring seat measurement is 58". You could have the spring seats welded another 1-1/2" inwards on each side to match your leaf springs and use the stock Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs # 20545I-EZ-72-15, or you could...
    view full answer...
  • Parts Needed For Installing Electric Brakes On a 1-3/4" Diameter 2,000LB Trailer Axle
    We do have all the components you will need to put electric brakes on an axle like the Dexter # 20545I-EZ-72-15 axle you found. You will need the Axle Beam # T20BTR-EZ-7258. You will then need to have 2 of the Mounting Flanges # 4-34 welded on by a trailer shop. These need to be welded on in the correct place and be perfectly flush to the hub so they do not cause premature wear on the brakes. Once the mounting flange is in place you will be able to attach the Electric Trailer Brake Kit...
    view full answer...
  • Are Trailer Axles for Drum Brakes Different From Trailer Axles For Disc Brakes
    The axles we offer do work great with disc brake setups. The brake mounting flanges are the same between drum and disc brake setups on trailer axles and the hubs of either setup are designed to fit on the same spindle dimensions so either setup would work well.
    view full answer...
  • Determining Correct Replacement Axle For Venture VB-1500 Trailer
    I would be happy to help you find the correct replacement axle, hubs, and springs for your Venture VB-1500, but unfortunately we do not have a breakdown of the specific components your trailer uses. Instead you will need to measure your components to find the correct replacements. Starting with the axle you will need to measure it from hub face to hub face, and spring center to spring center. In addition you will also need to check the axle tag on the center of the axle to find its weight...
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  • How to Find Replacement Suspension Parts for 1999 Lowe Boat Trailer
    In order to help you get the correct replacement parts for your boat trailer I'll need to know a little bit more info. We do have some axles with a 72" hub-face measurement, like part # 20545I-EZ-72-15, which should be what you're needing, but I'll need you to take a spring-center measurement as well for your axle (see attached). When it comes to replacing your leaf springs you'll need to measure from center-eye to center-eye and this is best done with no load in the trailer. I'm attaching...
    view full answer...
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  • 72 inch Long Trailer Axle Recommendation with 2,200 lb Capacity that can Fit 14 inch Wheels
    The difference is the mounting flange on the hubs. Axles that have larger mounting flanges like the part # 20545I-EZ-72-15 can fit the larger wheels, whereas the # 20545I-EZ-72-10 has a small flange that doesn't match up to the bigger wheels. What you would want to do is go with the axle part # T20BTR-EZ-7258 that does not have hubs with it and then use the hubs # 8-258-50UC1-EZ that has the larger mounting flange on it and will give you the 2,200 lbs capacity you want in the correct size.
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  • Axle And Suspension Recommendation For Utility Trailer
    I think the easiest way to get the parts you need for your trailer is to buy an axle kit that comes with the idler hubs, bearings, races, seals, grease caps, wheel studs, and lug nuts. For the weight you are saying you will be carrying I recommend starting with the Dexter Trailer Axle w/ Idler Hubs, part # 20545I-EZ-72-15. This system has a 5 on 4-1/2 bolt pattern so the tire/wheel combo I recommend is the Karrier ST205/75R14 Radial Trailer Tire with 14 inch White Wheel, part # AM32153....
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  • Can I Use 2K Axle with Larger Hub-Face Dimensions if Spring-Center Matches Current Axle
    Using an axle with a slightly larger hub-face dimension will still work great for your application as the tires will only be sticking out 1" further on either side - so the Dexter Trailer Axle w/ Idler Hubs # 20545I-EZ-72-15 is what you're needing provided your bolt pattern is 5on 4-1/2" for your wheels. The U-Bolt kit you need to mount this to your leaf spring can be found as part # APUBR-10 on our site. Attached are some review videos for you to check out.
    view full answer...
  • How to Choose the Best Tires, Wheels and Axle for a Homemade Jet Ski Trailer
    Finding the ideal tires, wheels and axles for your trailer will depend heavily on the overall weight of the trailer. For example, a jet-ski can weigh as little as 400-500 lbs on the light end and around 1,000 lbs on the heavy end. You must also consider the weight of the trailer itself sitting on the axles. Also, keep in mind that if the axle is positioned properly, the tongue of the trailer should hold about 10 percent of the total weight. For example, let's assume that your jet-skis...
    view full answer...
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  • Replacement 72 Inch Long 2,000 Pound Trailer Axle
    Trailer axle # 20545I-EZ-72-15 could fit in place of an axle with spring seat center spacing of 57-1/8 to 57-3/8 inches. At the very most the spring seats will have to be cut off and new ones, # TRSS175, welded on by a qualified professional welder for a nominal fee. Another option is an axle-less system, # A20RS545, which is rated for 2,000 pounds and comes with idler hubs. The suspension is built in. With this type of system you will not have to worry about replacing worn suspension parts.
    view full answer...
  • Can Spring Seats Be Attached On Top of Dexter Axle # 20545I-EZ-72-15
    We do not offer a version of the Dexter Trailer Axle w/ Idler Hubs # 20545I-EZ-72-15 with the spring perches on top of the axle tube but you really wanted to you could have them removed and rewelded onto the other side. Or you could just weld new ones on the side you want with part # TRSS175.
    view full answer...
  • Replacement Trailer Axle Needed with 72" Hub Face and 54.5" Spring Center Measurements
    Thanks for reaching out! I have a solution for you, but unfortunately we only offer some set choices when it comes to axle dimensions. With that being said, we do have the 2K Dexter Trailer Axle w/ Idler Hubs # 20545I-EZ-72-15 which has the 72" hub face length and then you can install 2 of the Spring Seat for Typical 2,000-lb, Round Trailer Axles # TRSS175 to fit the 54.5" spring center measurement you're needing. The new spring seats will need to be welded on by a qualified welder and...
    view full answer...
  • Does Dexter Axle 20545I-EZ-72-15 have a Front and a Back
    The axle part # 20545I-EZ-72-15 does not have a front and back. As long as you orientate the axle properly so that the bow of it faces down the axle can face either direction. This axle needs to install above the leaf springs.
    view full answer...
  • Recommended 2000lb Replacement Axle With 72" Hub Face Measurement For 5' x 8' Trailer
    I recommend the Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs # 20545I-EZ-72-15 which has the 2000lb axle rating, 72" hub face to hub face measurement, and 5 on 4-1/2" bolt pattern hubs you mentioned, but has a spring center to spring center measurement of 58" instead of 58-1/2" that you mentioned. With how close the spring center measurement is it may work still, if not you will need to remove the current spring seats and replace them with...
    view full answer...
  • What is Difference Between Axles Dexter part # 20545I-EZ-72-15 and etrailer # e37YR
    The two axles you referenced, the Dexter part # 20545I-EZ-72-15 and the etrailer # e37YR are essentially the same axle made by two different companies but the specs are the same. They are both 2,000 lb axles that are 72 inches long with spring center dimensions of 58 inches with idler hubs that have a 5 on 4-1/2 inch bolt pattern. Most will argue that the Dexter axles are the highest quality so that would be what I would go with if I were you.
    view full answer...
  • Recommended 2000lb Trailer Axle That Measures 53" Spring Center To Spring Center
    I may have an option that works for your trailer, but we do not currently offer a 2000lb axle that measures 53" from spring center to spring center. You can have the current spring seats removed and new ones welded in the correct space for your pop up camper, but you will need to know the hub face to hub face measurement of your current axle as that is something that cannot be changed. The Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs # 20545I-EZ-72-15...
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    Image 1 for
  • Recommended Axle With Hubs For Compatibility With 8 Inch Wheels For Boat Trailer
    Unfortunately we don't have any hubs that fit your current spindles. I recommend replacing your axle and that will be determined based on the length of your axle and capacity needed. For a galvanized steel option ideal for a boat trailer, I recommend the CE Smith Trailer Axle w/ Idler Hubs - 5 on 4-1/2 Bolt Pattern - 57-1/2" Long - 1,800 lbs # CE33201GA-HUB. Another option is the Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs # 20545I-EZ-72-15...
    view full answer...
  • Hub, Leaf Spring, and U-Bolt Kit for 2,000 lb Trailer Axle
    The Dexter Trailer Axle w/ Idler Hubs # 20545I-EZ-72-15 is designed to fit 2,000 lb trailer axles. If that's what you have then this will fit and the U-bolt kit part # APUBR-10 that you referenced would also work since that's what it's designed to fit. The leaf spring part # e84SR is also a 2k axle spring but you'll want to make sure the length matches what you need too. This has an overall length of 20-3/8 inch.
    view full answer...
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  • Replacement Hub Assembly with 15123 Inner Bearing and 09067 Outer Bearing
    Unfortunately it doesn't look like we've got any hubs that will work for this size spindle. For that reason, your best bet is likely going to be to replace the entire axle with a new one # 20545I-EZ-72-15 which comes with hubs included with a 5 on 4-1/2" bolt pattern, and the EZ lube spindles allow you to keep your bearings well lubricated. You will want to verify that your current axle's dimensions measure 72" from hub face to hub face and 58" from spring center to spring center, in...
    view full answer...
  • How To Determine A Replacement Axle For A 2008 Karavan 1250-56 Bunk Trailer
    Based off of my research your 2008 Karavan 1250-56 trailer has a GVWR of 1,585lbs, a 5 on 4-1/2 bolt pattern, and is 72" from hub face to hub face, with that being said, you can use the Dexter Trailer Axle w/ Idler Hubs # 20545I-EZ-72-15. You'll want to verify that the above information is correct, and also take the spring center to spring center measurement. I have included an image to help show where you'll need to measure to ensure you get the correct axle. The (A) measurement represents...
    view full answer...
    Image 1 for
  • Weight of Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000
    The Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs part # 20545I-EZ-72-15 has a shipping weight of 37 lbs.
    view full answer...
  • Replacement 2000lb Trailer Axle for 2000 Trailstar Tracker
    The Dexter Trailer Axle # 20545I-EZ-72-15 does appear to be the closest to your measurements on your 2000 Trailstar Tracker. It has a hub face to hub face of 72" which would be near the same as your 75" tip to tip length that you measured. The axle has a Spring center of 58" which compared to your 58.5" measurement may just be a difference how the U-bolts were tightened. Axle manufactures tend to use the hub face to hub face measurements as this will give a more accurate representation...
    view full answer...
  • Parts to Flip 2,000 lb Dexter Trailer Axle With Idler Hubs
    There is a way for you to flip the axles of the Dexter Trailer Axle with Idler Hubs # 20545I-EZ-72-15 you asked about, though the over/under kit you mentioned won't work because this axle is too small in diameter. So while there isn't a similar kit for the 1-3/4" axle tube of the Dexter axle, you can put together the pieces needed, which are the following: - U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles # APUBR-10 - Spring Seat for Typical 2,000-lb, Round Trailer Axles with 1-3/4"...
    view full answer...
  • Replacement Axle/Suspension for 4X8 Utility Trailer
    In order to put larger wheels/tires on your 4 X 8 utility trailer you may need to change out other components, such as the axle, in order to have the required clearance between the tire and trailer frame. Please note that changing the wheels/tires to a larger size and/or with a higher weight rating will not increase the trailer's weight carrying capacity. We do offer longer axle kits that would have the spindles extend further from the outside edges of the trailer, such as # 20545I-EZ-72-15,...
    view full answer...

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