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  1. Trailer Hubs and Drums
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  4. For 2000 lbs Axles
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Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - L44649 Bearings
Dexter

Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - L44649 Bearings

Part Number: 8-91-05UC1
In Stock
$73.72
Trailer Hubs and Drums
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Hub is designed for use on trailer idler axles. Fits 2,000-lb axles with BTR spindles. Inner bearing (L44649) and race, outer bearing (L44649) and race, grease seal, grease cap, wheel bolts, and lug nuts included. Great Prices for the best trailer hubs and drums from Dexter. Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - L44649 Bearings part number 8-91-05UC1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (846)
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Dexter Trailer Hubs and Drums - 8-91-05UC1

  • 4 on 4 Inch
  • For 2000 lbs Axles
  • Hub
  • 10 Inch Wheel
  • 12 Inch Wheel
  • Standard
  • Standard Grade
  • L44649 / L44649
  • 1/2 Inch Stud
  • Dexter

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


Features:

  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, wheel bolts, and lug nuts are included
  • Sturdy iron construction
  • Hub and drum are made in the USA


Specs:

  • Application: 2,000-lb trailer axles with BTR spindles
  • Wheel size: 10" to 12"
  • Hub flange diameter: 5-1/2"
  • Bolt pattern: 4 on 4"
  • Grease cap flange diameter: 1.986"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 1,000 lbs


Exploded View

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.


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: 1.500"
    • Outer diameter: 1.987"

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"


K08-091-91 Dexter Trailer Idler Hub Assembly for 2K Axle with Hardware - 4 on 4 - L44649 Bearings

Replaces 8-91-05UC1




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

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

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Fit perfect



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Great product would buy and use again.



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Good product, fast shipping



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GOOD DEAL SHIPPED SAME DAY!



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846
Show More Reviews

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

  • Needing Dexter Hub # 8-91A
    The hub that you are looking for comes in the Trailer Hub Assembly # 8-91-05UC1 on our site. For the E-Z Lube version you would instead want the Trailer Hub Assembly # 8-91-05UC1-EZ. I contacted Dexter Axle and confirmed that these were the correct hubs for the 8-91A hub you are looking to purchase.
    view full answer...
  • Replacement Dexter Hub for 8-91A Hub
    If the hub that was on your trailer axle previously had 8-91A stamped on the back of it your spindle should require inner and outer bearings of # L44649 like you used. The part # 8-91-05UC1 SHOULD be an exact replacement. However we need to double check your grease seal measurement. Double check to make sure you don't have a 1.5 inner diameter seal with outer diameter of 1.9. You can also measure the spindle where the seal rides as well. The seal dimensions you mentioned are not ones...
    view full answer...
  • What Hubs do I Need for My 1998 Calkins Boat Trailer?
    If both of your inner and outer bearings are # L44649, you most likely have a 2K axle. Depending on your bolt pattern, I recommend the following hubs: - Trailer Idler Hub Assembly for 2,000-lb Axles # AKIHUB-545-2-G-2K (5 on 4-1/2 pattern) - Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 # 8-91-05UC1 (4 on 4 pattern) If you need the hub/drum combination, I recommend the following: - Trailer Hub and Drum Assembly - 2K Axles - 7" Diameter - 5 on 4-1/2 # AKHD-545-2-2K (5...
    view full answer...
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  • How to Determine Correct Hub Replacement for 1994 Jayco Eagle SD with Dexter Axle
    I'm happy to help find a hub replacement for your Jayco Eagle, but in order to find the correct one, I'll need to know the inner and outer bearing numbers as well as the grease seal inner and outer diameter. You could alternatively use a digital caliper # PTW80157 to measure the portion of the spindle on which each component rides. From your photos it appears your wheel bolt pattern is a 4 on 4, but you'll want to confirm that just to be sure. Below are a couple diagrams to help.
    view full answer...
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  • Recommended Replacement Hub for Dexter 8-91A
    I reached out to my contact at Dexter regarding the numbers you gave. They couldn't match anything and suggested that you most likely have a 8-91A, which is a 4 on 4 bolt pattern. That is a very basic trailer hub assembly and the replacement part is # 8-91-05UC1. This assembly comes with the L44643 bearings, the grease seal, the lugs and the grease cap. I'd suggest a bearing packer like # PTW1218 and the Industrial Strength Grease # L11390.
    view full answer...
  • Do You Have Something Similar to a 8-91A Hub in a 5 Lug Pattern Instead of 4 on 4?
    Hello Ryan, How about a 5 on 4 1/2 bolt pattern? I looked up the specs on the 8-91A and it has both L44649 for the inner and outer bearing. I do not have any hubs in a 5 on 5, or 5 on 5.5" like you requested, but we do have them in a 5 on 4 1/2" which now a days is an extremely common bolt pattern. Our Trailer Idler Hub Assembly for 2K Axles # AKIHUB-545-2-LF-2K will work great just as long as your wheels are 13-15", for EZ lube spindle you want # AKIHUB-545-2-LFEZ-2K. If your wheels are...
    view full answer...
  • Can L44643 Bearings and L44649 Bearings Be Exchanged
    Yes, the Dexter Trailer Idler Hub Assembly part # 8-91-05UC1 will work with the bearing part # L44643 and the race part # L44610. They both have a 1.980" outer diameter which is why they are compatible with the above trailer hub. As long as your spindle has a 1" diameter where the bearing sits this option will work for you.
    view full answer...
  • Dexter Torflex #9 1000-2200 lbs Axle Hub and Bearing Kit Replacements
    The current hub for your Torflex #9 axle uses the inner and outer bearings # L44649 with a grease seal that has a 1.500" inner diameter. You can find the bearing kit as part # BK1-150 on our site. For a replacement hub we have the part # 8-91-05UC1 for a standard spindle or part # 8-91-05UC1-EZ for E-Z Lube spindles. If you have brakes then you would want part # 8-173-16UC3 for a standard spindle or part # 8-173-16UC3-EZ for E-Z Lube spindles. All of these hub kits come with bearings and...
    view full answer...
  • Replacement Bearings and Seals for a Dexter Hub with 8-91A Stamped on Back
    If the spindle that was on your trailer axle previously had 8-91A stamped on the back of it your spindle should require inner and outer bearings of # L44649 like you used. The part # 8-91-05UC1 that you referenced would be an exact replacement. Grease seal # 10-9 is the correct replacement seal also. It has an inner diameter of 1.5 inch and an outer diameter of 1.987. The double lip version of this that is sold in pairs is our part # RG06-020. # 10-9 is sold individually. Double lip...
    view full answer...
  • Does a Trailer Wheel Center Hole and a Hub Bore have to Match
    The expert answer you have referenced is correct. A wheel that secures to the hub using bolts instead of lug nuts actually centers on the hub so the pilot hole of the wheel has to be exact. If it is too large the wheel can easily be off center and lead to all sorts of problems. Hub # 8-91-05UC1 has a center bore outer diameter of approximately 2.4375 inches; very close to 2.5 inches but not quite. If you use this hub and the wheels you are using have a pilot hole that is larger, it will...
    view full answer...
  • Trailer Hub Compatible with Caliper Measurement for Camping Trailer Axle
    Based on your photo it does appear you have the BTR spindle that takes the 1.063 inch inner bearings. The fact that it isn't a digital caliper with the precision of that thousandth does leave slight ambiguity but I am still confident you will want the Dexter Trailer Idler Hub Assembly # 8-91-05UC1. You will not need the # 8-91-05UC1-EZ you asked about because you don't have the grease zerk in your spindles. To confirm fit, I recommend putting your caliper on the grease seal location...
    view full answer...
    Image 1 for
  • What is the Replacement Wheel Hub Needed on the Axle of a 1996 Jayco 1207 Popup Trailer
    We have a hub that will fit your 1996 Jayco popup trailer. The Dexter Trailer Hub assembly, # 8-91-05UC1-EZ, that you referenced will work on your trailer axle. This hub uses the # L44649 bearings and has a 4 bolt lugs. Measuring the current hubs bolt pattern will tell you for sure if this hub will work for you. I have attached an article that will explain how to find what your wheel bolt pattern is on your current hub. If you do not have grease zerks at the end your axle spindles, then...
    view full answer...
  • Is there a Torque Spec for Installation of Castle Nut on 2,000 lb Axle?
    The castle nuts do not have a torque spec. Bearings and races are fit to the spindle precisely and will have minimal movement to the washer and castle nut which will simply be tightened and held in place with the cotter pin # 165649. We recommend tightening until the nut stops without added force and then backing it off one notch to fit the castle nut. The Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 - L44649 Bearings # 8-91-05UC1 is a fit for 1.063 inch spindles and...
    view full answer...
  • Replacement Wheel Bearings and Seal for Dexter Hub 8-91
    The inner and outer bearing that your Dexter Hub part # 8-91-05UC1 has is # L44649. Then for a seal you would want the part # 10-9.
    view full answer...
  • Do I Need a Washer with Castle Nut to Install Dexter Trailer Idler Hub Assembly for 2,000-lb Axles
    Personally, I would install the Dexter Trailer Idler Hub Assembly for 2,000-lb Axles # 8-91-05UC1 and add the Washer # SW1000, Spindle Nut # 165686, and Cotter Pin # 165649 as that's how we usually install them here at etrailer and it makes sense to me to have that smooth surface between the castle nut and bearing. If you spoke with Dexter directly and they said that the washer isn't needed then you should be just fine without it, I just feel like it will keep everything running a bit...
    view full answer...
  • Looking for Galvanized 4 Lug Trailer Hub Compatible w/ # T20BTR-6048 Dexter Trailer Axle
    The # T20BTR-6048 Dexter 2K axle you referred to is compatible with a L44649 inner and outer wheel bearing. The # 8-91-05UC1 hub assembly has a 4-on-4 bolt pattern and uses the L44649 bearings. A galvanized version isn't offered, but there's one available in a 5 lug on 4-1/2 bolt circle, part # 8-259-50UC1 for 8-12 inch wheels or # 8-258-50UC1 for 13-15 inch wheels. Keep in mind, if you switched to the 5 lug hub, you'd need to swap out your existing wheels for wheels with a 5-on-4-1/2 inch...
    view full answer...
  • Correct Replacement for Dexter Idler Hub 8-91A
    The correct replacement for a Dexter Idler Hub 8-91A is the Dexter Trailer Idler Hub Assembly part # 8-91-05UC1 which we confirmed with Dexter directly. This is a complete assembly with hub, bearings, seal, lug nuts, and grease cap.
    view full answer...
  • Replacement Hubs for 2000 Dutchman Voyager Pop-Up Camper
    To select proper new hubs for your trailer you will need to confirm a few things: bolt pattern (see linked article), inner and outer bearing numbers (see linked photo) and axle weight rating (which should be indicated on a sticker or plate on the axle). You can then use the link provided to see our main page for hubs. Filters in the left margin will allow you to narrow the results based on your bearings, bolt pattern, wheel size and weight requirement, as well as whether or not you need...
    view full answer...
    Image 1 for
  • Replacement for Dexter 8-91A Hub
    I did some research and there is no direct replacement for your hub due to how old it is. So in order to find the correct replacement, you will need to know the bearing numbers of your current hub because the information you gave is irrelevant. If you are unable to find them, you would need to use a digital caliper such as # PTW80157 and measure your spindle to the thousandths of an inch where the bearings ride. You can use the photo I've attached to see exactly where you need to measure. There...
    view full answer...
    Image 1 for
  • Wheel Torque Spec for Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4
    The wheel torque spec for the Dexter Trailer Idler Hub Assembly for 2,000-lb Axles - 4 on 4 part # 8-91-05UC1 will be between 75-85 ft. lbs. It's pretty low on the scale of torque for wheels so completely fine.
    view full answer...
  • Replacement 4 on 4 Trailer Hub Assembly for 13 Inch Wheels
    We do have the Dexter Trailer Hub Assembly # 8-91-05UC1 that is compatible with 13 inch wheels. This has a 4 on 4 bolt pattern with a # L44649 inner and outer bearing. The hub assembly will fit 2,000 pound axles. I recommend pulling the hub on your trailer to confirm the bearing numbers. These will be stamped onto the bearings themselves but you can also measure the trailer spindle if they cannot be found. I have attached an image that shows the measurements needed. I have also attached...
    view full answer...
    Image 1 for
  • Replacment Trailer Hub Recommendation for Hub Marked 8-259
    We do carry the Dexter hub part # 8-259-5UC1-EZ which matches the first part of the part number you mentioned. This is a 5 lug hub though so for a 4 lug hub version of the same hub you would want the # 8-91-05UC1.
    view full answer...
  • Replacement Trailer Idler Hub For Dexter 8-91A Hub With 4 on 4" Lug Pattern
    You will need either the Dexter Trailer Idler Hub Assembly # 8-91-05UC1 that fits standard axles, or the Dexter E-Z Lube Trailer Idler Hub Assembly # 8-91-05UC1-EZ that fits axles that have the E-Z lube grease. Both hubs will include all new bearings, races, lug nuts, a grease cap and a grease seal. I recommend using LubriMatic LMX Industrial Strength Grease # L11390 to fill the bearings and the hubs thanks to its superior wear resistance in both hot and cold climates.
    view full answer...
  • Replacement Bearing and Hub Kit Recommendation for Aluma 5310
    Your bearings having an inner diameter of 1-1/16 inch indicates you have a standard size spindle. The size matches the BTR spindle. The bearings part # L44649 that you referenced match what you'd need. For a hub that will fit this we have the part # 8-91-05UC1 for an idler hub with a 4 on 4 inch bolt pattern. Then if you need a 5 on 4-1/2 inch bolt pattern instead you'd want the part # 8-259-5UC1-EZ.
    view full answer...


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