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  1. Trailer Hubs and Drums
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  3. 5 on 4-1/2 Inch
  4. For 2000 lbs Axles
  5. Hub
  6. 8 Inch Wheel
  7. 10 Inch Wheel
  8. 12 Inch Wheel
Dexter Trailer Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Cast Iron

Dexter Trailer Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Cast Iron

Item # T4084600042
Our Price: $41.88
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Shipping Weight: 6 lbs
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Cast iron hub assembly is typically used in military applications. Trailer hub fits 2,000 idler axles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, and lug nuts included. Great Prices for the best trailer hubs and drums from Dexter. Dexter Trailer Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Cast Iron part number T4084600042 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (55)
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  • Why etrailer?

Dexter Trailer Hubs and Drums - T4084600042

  • 5 on 4-1/2 Inch
  • For 2000 lbs Axles
  • Hub
  • 8 Inch Wheel
  • 10 Inch Wheel
  • 12 Inch Wheel
  • Standard
  • 1/2 Inch Stud
  • L44643
  • L44643
  • Dexter

Cast iron hub assembly is typically used in military applications. Trailer hub fits 2,000 idler axles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, and lug nuts included.


  • Cast iron trailer hub assembly fits idler axles
    • Includes bearings, races, grease seal, grease cap, and lug nuts


  • Application: 2,000-lb axles
    • May also be used on 2,500-lb axles with 1" spindle
  • Bolt pattern: 5 on 4-1/2"
  • Wheel studs: 1/2" diameter
  • Weight capacity: 1,250 lbs

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L44643 (1.000" inner diameter)
    • Outer bearing: L44643 (1.000" inner diameter)
  • Races (included)
    • Inner race: L44610
    • Outer race: L44610
  • Grease seal (included): 34823
    • Inner diameter: 1.249"
    • Outer diameter: 1.983"

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"

008-A16-90 Dexter Axle Trailer Hub Assembly for 2,000 Pound Axles - Cast Iron

Replaces Titan 4084600042

Customer Satisfaction Score:

Customer Reviews

Dexter Trailer Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Cast Iron - T4084600042

Average Customer Rating:  4.8 out of 5 stars   (55 Customer Reviews)

Cast iron hub assembly is typically used in military applications. Trailer hub fits 2,000 idler axles. Inner bearing (L44643) and race, outer bearing (L44643) and race, grease seal, grease cap, and lug nuts included.


Good hub kit.


I'm a small customer but I'm treated like I own a trucking fleet at etrailer. This company truly puts the customer first. In addition to that their prices are more than fair and their products are top quality. I can't say enough about etrailer. My experience is 100% positive.


Incredible value for money!
on my cheap trailer disintegrated. Fortunately within a few yards of home- probably assembled without grease. . After fitting this replacement I decided that I wouldn't be able to survive a second failure so bought a kit to replace the other wheelhub since the kit was so affordable.
A deficiency on the first kit was dealt with so cooperatively by E-trailer that I am a fan for life.


product came quick and installed easily:)!!! Thanks Jeff


It was a bad day when the hub on my trailer disintegrated, although we were extremely fortunate it was unloaded and in the driveway. An hour later would have been a regular disaster. Found the right kit on E-trailer and delivery was as usual very prompt. To my amazement and irritation the sealed plastic bag containing the kit was one bearing short. But here is why I give them 5 stars; I was expecting a roll of the eyes when I told them a bearing was missing because it would be natural to believe the kit was correct and I had damaged or lost one of them right? I was anticipating a major argument. But the woman was extremely understanding and ACTUALLY APOLOGIZED rather than accuse me of dishonesty. CarryAnne even gave me her direct cell # in case there was another problem. Follow up was with George also first-class.
You learn little about a company when things go right, but it is SO GREAT to have a company respond properly when there is a problem.
I have used E-trailer for many odds and sods over the years along with other suppliers, but I will go out of my way to stay with E-trailer from now on.


I'd rate this as excellent if all parts came as ordered. I ordered 2 sets to replace existing 4 lug hubs to make consistent with my second trailer to allow swapping of tires. With 5 lugs in one packet and 3 in the other I'm 2 lugs short of a full load. Love the video support, love the quick turnaround, just need to make sure I get all the parts. Overall installation was very easy on the second and I now have a decent understanding of what to look for in bearings and trailer wheels.



Rebuilt a boat trailer last year. I replaced both whole hubs instead of just the bearings. This saved me time and gave me confidence that the wheels are like new.


Hubs and bearings arrived in perfect condition as described. Everything fit, and reassembly was easy. I did appreciate the videos that explained and showed how to pack the bearings and install the grease seals.
Thanks Etrailer. You just gained a new customer. no need to look anywhere else.


This hub was exactly what I hoped it would be. All the parts installed easy. My trailer is back to normal. Note, this kit includes all the hardware, but you'll need to spend a couple bucks on lube either online when you order or at any local auto or hardware store. is an excellent website - well constructed for identifying exactly what part you're looking for. Highly recommend!!


We have been very satisfied with the products purchased for our operations. We utilize these components for our commercial operations mostly off road and they have held up very well. Etrailer has proved to be a valuable resource for us both in the quality of components that we utilize from them as well as the price point at which they sell the products. We will continue to utilize them in the future as we grow.


Well after a year and about 2000 miles. Still good. I repack the bearings every 6 months depending on how much I use my trailer. It’s a 7 foot single axle used to haul a golf cart for trap competitions and hauling wood. Was concerned about the Chinese bearings but have no problems so far.


My second time purchasing these hubs. First was for a boat trailer, this time for a jet ski trailer. Great product, very sturdy. Comes with bearings, grease seal, and outer races (already pressed into hub). Great value!


I had contact with two employees from, they both went above and beyond to take care of me! The items that I ordered were not a stock item,so they contacted me and shipped the item(s) that were better than what I originally ordered! Can't wait to do business with them again! If you buy your trailer parts elsewhere, your making a mistake! Thanks George & Kat


I built some trailer axles with spindle R104BT8 and theses hubs and the trailer works great. Pulled the trailer 500 miles on its first trip and it pulled true and the hubs never got warm. Thanks


I have used etrailer several times in the past and always get the same result, great customer service, a quality product and lightening fast shipping. This particular order was placed at 430pm on a wednesday and the package was on my doorstep less than 22 hours later, and I didn't purchase expedited shipping.


Excellent product. etrailer has always sold excellent products and the variety is exceptional.

Pocono J - 08/04/2018


I am very impressed with etrailer. One, their shipping cost are reasonable and, in addition, very timely. That product I recently purchased is good quality at a good price.
The staff in all of my contacts with etrailer has been exceptionally pleasant, experienced with excellent results. Very pleased with trailer.


Quality is great for the price. Not much more to say other than thanks again to for another great product at a great price.


Bearings from China we will see about quality after in service a while.
The kit could have included a new washer and nut with cotter pin.


When it came time to change the Bearings ,Tire & Wheel on my small utility trailer , I shopped locally for these items and found them to be very expensive. I responded to your ad and found the same parts to be almost
50% less. I will be buying the parts for the other side soon. excellent service and fast shipping.


Came as advertised. Bearings made in China but for the light use this trailer will get, not problem. Dust covers didn't fit very well and became very deformed as I hammer them on.
Shipped very fast!


fast Delivery. Items where as described. And from the great state of Missouri. I am telling all my friends about


This company had exactly what I wanted and the hub assembly came with more spare parts than I expected which is great. The price was HALF the competition and took just a couple of days to get no extra freight charge on ground shipping. I recommed them to anyone, companies like this keep small bussiness's going and I appreciate it greatly. Thanks again Marco.


I used the hubs to upgrade from 4 lug hubs on a utility trailer.They worked wonderfully.


Very good product,very satisfied .will purchase any other trailer parts here when needed. Great customer service.

Show More Reviews

See what our Experts say about this Dexter Trailer Hubs and Drums

  • Hub Dimensions Of Titan 2,000 Trailer Hub Assenmbly
    I called Titan about the Titan Trailer Hub Assembly, part # T4084600042, and to get some of the dimensions you need. I have attached a photo that has the dimensions noted. The outside diameter of the hub is 5.69 inches and the outside diameter of the hub portion that the pilot hole of your wheel slips over is 2-1/2 inches.
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  • Information Needed to Pick Out New Hubs for a Trailer
    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. Sounds like you know that you want a 5 on 4-1/2 inch bolt pattern. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that...
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  • What is Hub Length on Titan Trailer Hub Assembly for 2,000-lb Axles # T4084600042
    I pulled from our warehouse a piece of Titan Trailer Hub Assembly for 2,000-lb Axles # T4084600042 so that I could measure it for you. I have linked a photo of this 5-on-4-1/2 bolt pattern hub with various dimensions noted, including overall length which is 4-1/4-inches. The inside bore of both ends, not shown on the photo, is 2-inches.
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  • Replacement Hubs and Bearings for EZ Loader Boat Trailer
    Part 300-020885 refers to an EZ Loader boat trailer BT150/B151 bearing kit. Part # 300-020883 refers to a complete 5-on-4-1/2 idler hub kit that includes races, bearings, seal, washers, nut, retainer nut and cotter pin, bearing protector and lug nuts. This hub fits on a straight spindle, meaning one that uses the same part for both its inner and outer bearing. The actual bearing numbers are not provided on their site. We do offer idler hub kits that use the same inner and outer bearing,...
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  • Bearing Outside to Bearing Outside Measurement on Trailer Hub Assembly for 2K Axles T4084600042
    Since the races (that go around the bearings) are already pressed in on Trailer Hub Assembly for 2,000-lb Axles - 5 on 4-1/2 - Cast Item # T4084600042 I can measure from the outside of one to the outside of the other. That measurement is a hair less than 3-3/4 inches.
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  • Can Knicked Spindle be Smoothed Out and Reused
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  • Torque Spec for Lug Nuts on Trailer Hub # T4084600042
    Lug nut torque is determined by a few factors. The size of the wheel, the metal the wheel is made from, the diameter of the studs etc. If you check out the chart I attached you'll see how to determine how much torque to use when installing a wheel on the Trailer Hub part # T4084600042.
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    In order to pick out the correct hub assembly for a trailer you are going to need know a few key pieces of information. The first thing you will need to know is the bolt pattern of your hubs. This is so you get a hub that is compatible with your wheels. I attached an FAQ article on determining bolt pattern for you to check out. Next thing you will need to know is what spindle you have on your trailer. In order to do that you can either get the inner and outer bearing numbers from a hub...
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  • How To Determine What Hub Is Needed For 14-Ft Boat Trailer
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  • Does Trailer Hub Assembly # T4084600042 Fit Spindle TRU94FR
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  • How to Select Replacement Hubs for Utility Trailer
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  • How to Select Replacement Hubs to Fit on Existing Spindles
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  • EZ Lube Grease Caps for 8x8 Single Axle Trailer
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  • Comparing Axle Tek and Titan Cast Iron Idler Hubs AKIHUB-545-2-1K & T4084600042
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  • Replacement Hubs and Wheels for Nuway Utility Trailer
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  • Choosing a Replacement Hub for a Dexter Axle and 8-Inch Trailer Wheel
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  • How to Determine Proper Replacement Trailer Hub
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  • Determining Which Replacement Hub Fits Carry-On 5 x 8 Utility Trailer With 2000lb GVWR
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