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Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 5 on 4-1/2

Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 5 on 4-1/2

Item # 8-258-5UC1-EZ
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Hub is designed for use on trailer idler axles. Fits 2,000-lb E-Z Lube axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included. Lowest Prices for the best trailer hubs and drums from Dexter Axle. Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 5 on 4-1/2 part number 8-258-5UC1-EZ can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Dexter Axle Trailer Hubs and Drums - 8-258-5UC1-EZ

  • 5 on 4-1/2 Inch
  • For 2000 lbs Axles
  • Hub
  • EZ Lube
  • 13 Inch Wheel
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Dexter Axle
  • 1/2 Inch Stud
  • L44649
  • L44649

Hub is designed for use on trailer idler axles. Fits 2,000-lb E-Z Lube axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.


  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, wheel bolts, and lug nuts are included
  • E-Z Lube-compatible grease cap makes lubricating bearings fast and easy
    • Remove rubber plug to access zerk fitting on spindle - no need to disassemble hub
  • Sturdy iron construction
  • Hub and drum are made in the USA


  • Application: 2,000-lb E-Z Lube trailer axles with BTR spindles
  • Wheel size: 13" to 15"
  • Bolt pattern: 5 on 4-1/2"
  • Grease cap flange diameter: 1.986" outer diameter
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,000 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L44649 (1.063" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (included)
    • Inner race: L44610
    • Outer race: L44610
  • Grease seal (included): 10-9
    • Inner diameter: 1.5"
    • Outer diameter: 1.987"

E-Z Lube-Compatible Hub for Simple Lubrication

The grease cap on this hub is specially designed to work with your Dexter E-Z Lube axle to make lubricating bearings quick and easy. Just remove the plug on the grease cap, attach a grease gun to the zerk fitting on the end of the spindle, and inject the grease. It will flow easily to both inner and outer bearings. Not only does this make lubricating the bearings easy, but it also helps to prevent corrosion of the hub. This is because you can lubricate the bearings without the mess of taking apart the entire assembly.

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"

Note: Some axles rated at 2,000 lbs require a different seal and bearings. Be sure that the bearings in the hub being replaced have L44649 stamped on them. If the bearings have L44643 stamped on them, use 8-258BTUC1 trailer hub.

Note: Trailer wheels that are smaller than 15" and have 5 bolts, have a 5 on 4-1/2" bolt pattern.

8-258-5UC1-EZ Dexter Trailer Idler Hub Assembly for 2K Axle with Hardware - 5 on 4-1/2 - EZ Lube

Video of Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 5 on 4-1/2

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

Video Transcript for Dexter Axle Trailer Hubs and Drums - Hub - 8-258-5UC1-EZ Review

Today we're going to review part number 8-258-5UC1-EZ. This is the Dexter Trailer Hub Assembly for 2,000-lb E-Z Lube axles with the 5 on 4 1/2" bolt pattern and it's designed to fit 13" to 15" wheels. This trailer hub assembly will fit on E-Z Lube axles. It includes everything shown here, the bearings, the races, which are preinstalled in the hub, the double width grease seal, the E-Z Lube grease cap, and the lug nuts. I mentioned this does fit on E-Z Lube axles and basically, the E-Z Lube axle design is designed to make lubricating your bearings very simple. In other words, you don't have to take your hub off, disassemble it all to get to the bearings to grease them.

All you'll have to do is on a E-Z Lube axle, the spindle at the very end has a grease zerk fitting in it that you'll attach your grease-gun to, pump the grease in and you're all ready to go. What will happen is with this cap, with this installed on the axle, then this cap on here you just remove the center rubber plug and that will give you access to that zerk fitting to lubricate your bearings. The application on this is for 2,000-lb E-Z Lube axles. The hub flange diameter, which is edge to edge here, just to give you an idea, is going to be 6 1/2" and the reason I mention that hub flange diameter is because that diameter will allow you to use anywhere from 13" to 15" wheels on this hub. The bolt pattern is 5 on 4 1/2". The wheel stud diameter is 1/2".

The weight capacity on this single hub is 1,250 lb. When you use this with another one, that would give you a total weight capacity of 2,500 lb, but these are for 2,000 lb axles so the axle capacity will limit you to the 2,000 lb. The bearings that are included, in this application they're actually using the same inner and outer bearing size and part number. The inner bearings, part number L44649, and back here you'll see the preinstalled race right there, so you put your inner bearing right in. Then you would end up taking your double width grease seal, tap that in to hold everything into place. Then go to the front and again you'll see the outer bearing race already preinstalled.

You'll take the other outer bearing, which is the same part number, L44649, drop that into place. This would slide over the spindle. Your spindle would come through here. Put your washer on. Put your nut on.

Tighten it down. Once everything is secure, just tap your cap right here on top and as I have mentioned, because this is a E-Z Lube cap, you can just pop this rubber plug out, just like that. With it installed, you'll have access to that zerk fitting on the end of the E-Z Lube spindle. Make lubricating very easy. Also, comes with the 5 1/2" lug nuts and those are designed to hold your wheel and tire assembly to this hub once you put that on. Hold it into place with these 1/2" lug nuts. Torque it down to the correct specs for your application. Just a note I want to mention to you is that on some axles that are rated at 2,000 lb, they might require a different seal and bearings. What you want to do is make sure the bearings in your hub that you're going to use this part number on will have the L44649 stamped on them. That's what this is designed for. If your 2,000 lb axle happens to use a different bearing, which usually is the L44643, then you'll have to use a different part number trailer hub for that application. Just a note on that. That should do it for the review of part number 8-258-5UC1-EZ, the Dexter Trailer Hub Assembly for 2,000-lb E-Z Lube axles, with the 5 on 4 1/2" bolt pattern. .

Customer Reviews

Dexter Trailer Idler Hub Assembly for 2,000-lb E-Z Lube Axles - 5 on 4-1/2 - 8-258-5UC1-EZ

Average Customer Rating:  4.9 out of 5 stars   (44 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 2,000-lb E-Z Lube axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included.

- 8-258-5UC1-EZ

Parts fit my 2003 Triton trailer perfectly. Should have done this years ago. These are better than the original. 756205

- 8-258-5UC1-EZ

Not much to say about it. It works as expected. Would purchase again. 739720

- 8-258-5UC1-EZ

works fine 730439

- 8-258-5UC1-EZ

Perfect replacement. Wish it included a cotter pin 715982

- 8-258-5UC1-EZ

Received products quickly. Products were packaged well and free of damage. I used the website to research to make sure I obtained the right parts the first time. The videos were helpful and I liked they had the part number highlighted made ordering. 698395

- 8-258-5UC1-EZ

Fast and easy. Exactly the parts I need ed 672862

- 8-258-5UC1-EZ

Exactly what I ordered, it should be clear races are installed. Parts were loose in box but all there. I bought as emergency hub assembly for boat trailer. I did notice bearings are made in China that was my only concern for long term use. 642814

- 8-258-5UC1-EZ

Installed the new hubs yesterday on my Triton snowmobile trailer. These are the OEM hub for my trailer and I wasn't happy with the replacement hubs which were installed as the EZ Lube feature of the axle was not working a it should. It was real nice to order a complete high quality hub set at a great good price. They fit Great and the EZ Lube hubs now work well. 611728

- 8-258-5UC1-EZ

Very satisfied with this replacement hub and functioning as designed. 598494

- 8-258-5UC1-EZ

Great price, quick shipping, exact replacement. Will buy from again. 574981

- 8-258-5UC1-EZ

Excellent product that fit like a glove. On line instructions were great and an added bonus. Highly recommend. 512081

- 8-258-5UC1-EZ

The hub I purchased came in the correct size with all the proper pieces it was easy to put together. Customer service was great I practically got a response to my email after like an hour of sending it good customer service 470031

- 8-258-5UC1-EZ

Matched right up..great product 463177

- 8-258-5UC1-EZ

I was amazed at all the helpful information (measuring, correct bearing size etc.), with videos when searching for the correct hub replacements for my 1999 Bass Tracker - Trailstar Trailer which has the EZ lube Dexter axle. The shipping was great and everything arrived as it should. The boxing was heavy duty and did it's job. I have to say I was amazed at the spot on shipping and customer service from start to finish. etrailer.com has my business from now on. 450404

- 8-258-5UC1-EZ

Perfect replacement for old cracked hub Don’t normally do reviews but this hub is better than original Received product very quickly Highly recommend etrailer 446943

- 8-258-5UC1-EZ

This organization is 1st rate. First, the shipping method was upgraded for free to a faster delivery, the item was an exact replacement for my existing hub with a different PN, and then the parts fit PERFECTLY. I would definitely buy from these guys again! 429452

- 8-258-5UC1-EZ

works as it should! 426309

- 8-258-5UC1-EZ

Fast shipping, parts as description will by again A+++ 409912

It still runs like I installed it yesterday thank you for such an easy install product and good product.
Nico - 07/27/2018


- 8-258-5UC1-EZ

Was exactly what I need. Price was great. Expedited delivery showed up exactly as promised. Note that the hub and bearings come completely disassembled and ungreased. So you'll need to assemble it all on the spindle and grease the bearings. 391011

- 8-258-5UC1-EZ

All parts were a perfect fit and seem to be good products. I wil products from etrailer again. Good friendly staff 384635

- 8-258-5UC1-EZ

I made numerous phone calls because I was worried about ordering the wrong hub. These people were so patient and helpful and never got aggravated with all my questions. In the end, I received my hub very quickly, it went right on with little effort at all. One year later I've had no issues period. They got me back on the water quickly and I would recommend anyone use etrailers for any needs you may have!! Very polite and professional with high quality parts! 358729

- 8-258-5UC1-EZ

Ordered for a spare hub for Tracker marine trailer for Fisher 1710 boat. Exact hub as original and a great price compared to local marine dealers or parts stores. 338004

- 8-258-5UC1-EZ

Great Hubs fast shipping. When you buy a axle it should be noted that it fits your hubs only. 315594

Thanks for your review, Richard - As long as the hub bearings and seal matches what the axle spindle calls for, the hubs do not have to be the hubs that we have on our site.
-- Laura E - 11/25/2016

The axle is performing great. I have run it about 2000 miles and the tires are doing great. The original axle wore out a tire in 1000 miles. I am very pleased with this business and have told several people about it. THANKS
Richard W - 11/10/2017


- 8-258-5UC1-EZ

Hub assembly arrived as described. They fit as they should, and were very easy to install. The guys at etrailer.com helped ensure the parts were the exact replacement for the parts I wanted to replace. Great service, fast shipping, and great pricing. I would buy from etrailer.com over and over and over again. 312429

- 8-258-5UC1-EZ

Like everything else I purchased to try and resurrect my old boat trailer, these hubs fit perfectly and worked great. Thanks!! 304387

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Info for this part was:

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Installed by:
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