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  1. Trailer Hubs and Drums
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  3. 5 on 5 Inch
  4. For 3500 lbs Axles
  5. Hub
  6. 13 Inch Wheel
  7. 14 Inch Wheel
  8. 14-1/2 Inch Wheel
  9. 15 Inch Wheel
Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased

Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased

Part Number: AKIHUB-550-35-K
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Hub is designed for use on trailer idler axles. Fits 3,500-lb axles with #84 spindles. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, and lug nuts included. Great Prices for the best trailer hubs and drums from etrailer. Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased part number AKIHUB-550-35-K can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (85)
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etrailer by AxleTek Trailer Hubs and Drums - AKIHUB-550-35-K

  • 5 on 5 Inch
  • For 3500 lbs Axles
  • Hub
  • 13 Inch Wheel
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Pre-Greased
  • Standard
  • L44649
  • L68149
  • 1/2 Inch Stud
  • etrailer

Hub is designed for use on trailer idler axles. Fits 3,500-lb axles with #84 spindles. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, and lug nuts included.


  • Trailer hub assembly fits idler axles
    • Bearings, races, seal, grease cap, and lug nuts are included
  • Sturdy iron construction
  • Zinc-enriched paint finish
  • Pre-greased idler hub is easy to install - no need to pack bearings
    • Lithium complex, multipurpose grease keeps bearings lubricated
  • QAI and CSA certified


  • Application: 3,500-lb trailer axles with #84 spindles
    • Compatible with standard axles from most manufacturers, including Dexter, Lippert (LCI), and AL-KO
  • Wheel size: 13" to 15"
  • Bolt pattern: 5 on 5"
  • Wheel stud dimensions: 1/2" diameter x 1-5/16" long
  • Grease cap flange diameter: 1.988"
  • Weight capacity: 1,750 lbs
  • Limited 1-year warranty

Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: L68149 (1.378" inner diameter)
    • Outer bearing: L44649 (1.063" inner diameter)
  • Races (included)
    • Inner race: L68111
    • Outer race: L44610
  • Grease seal (included): 58846
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

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"

KH-550-07-19 AxleTek Trailer Idler Hub Assembly for 3.5K Axle with Hardware - 5 on 5 - Pre Greased

Compare to Dexter 84550BX

Customer Satisfaction Score:

Customer Reviews

Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased - AKIHUB-550-35-K

Average Customer Rating:  4.8 out of 5 stars   (85 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 3,500-lb axles with #84 spindles. Inner bearing (L68149) and race, outer bearing (L44649) and race, grease seal, grease cap, and lug nuts included.


I ordered a trailer hub and when it arrived the one in the box was not what the label had on the outside of the box. It was the wrong part -in the correct box. I contacted etrailer to let them know what happened and they very quickly responded and asked for measurements and pictures. I took a few pictures with the tape measure and sure enough, the part somehow got put in the wrong box. The parts I got was brand new and had all the pieces, it was just the wrong size. etrailer quickly sent out a replacement hub and I got it today. The part is now correct. It is new and in new condition with all the pieces as described. I could not be more happy on how well the customer service was on this issue. In the future I will certainly buy from etrailer again. Thanks everyone for the great service.



I have had the hub on my trailer for a year now and have pulled that trailer several thousand miles. I have had no problems at all with the new hub I got from etrailer. Good product and a great price with the best customer service.


Shipping was fast, and the hubs were easy to install. They were a no brainer with the bearings pregreased and installed with new races and back seal. Great product.


Amazing! Ordered 12/16/23, UPS delivered 12/20/23! Perfect match to my axles. Hubs were packed with grease and the hubs were sealed with plastic inserts that were press fit into the each side of the hub to keep debris out, all encapsulated in plastic bag. No special prep to the hubs, just remove from packaging and install. Hubs included lug nuts and 2 caps, one cap with rubber bladder to allow for pressure expansion from thermal changes, and one solid cap.


quick service my order was shipped the same day ordered. Looks like high quality parts.


So far so good, even with the extra stress of the wide wheels. I even bought an extra hub to keep in the tool box for a road side repair.



Still working great. It has been across several states, rough highways and dirt roads. Can’t complain.


Perfect fit for my 5x12 trailer! The ordering and shipping process was great. Preston was great in matching my old hubs to the new ones. This was my first hub replacement job and I was done in an hour.
Will be a repeat customer!!!!


Perfect fit and fully loaded just install and add little grease


I had an extremely hard setup and the customer service was great. However, the outer bearing and race were wrong. Sadly, the only info I had was for the outer bearing and race. Kudos for guessing the correct inner and even the grease seal size. Doesn't really count though as the the info I was able to provide missed the mark badly. Like 1/4" badly.

Etrailer Expert

Brooke M.


I am wondering if the wrong assembly was sent. Are you able to tell me color the dot is on the hub?


Product easy to install only thing wrong they don’t send you a new castle nut or cotter pin. So don’t throw the old ones out first set of bearings I ever got without new ones with it


William B did a real good job helping me thank you


I bought these as spares to carry on trips. After having a bearing failure while towing my race car I became a big believer in having spares. I now replace bearings/races every other year as preventive maintenance even if they look ok. Bearings are all made in China so I think quality varies, regular maintenance is a must. The price is awesome compared to the local trailer dealer for the same product. etrailer is awesome great prices and fast shipping.


Worked perfect for what I needed, overall great experience


Super fast shipping!!


Easy install


I was sent a 5 on 4 3/4 hub in a 5 on 5.0 box. I found this after spending 2 hours turning the spindle they sent on a lathe to match what was supposed to be sent. Next time I will machine my own parts.

Etrailer Expert

Brooke M.


Thank you for bringing this to our attention. I will have our customer service team reach out to you.


Customer service was awesome and I received my parts on time.


Excellent value! I can't say enough good things about eTrailer. Awesome and helpful website, great products, best prices, excellent customer service.

This product allowed me to replace the bad bearings on my trailer in about a half hour. No cleaning old grease out of hubs, no trying to get old races out, and all for the price other places will charge for bearings alone!

I had a slightly rare 5 on 5 bolt pattern, which was impossible to find in local stores. No problem at eTrailer! They always have a great selection and get it to me very quickly. I've finally learned not to waste my time shopping around and to just come here first!


The part, (5 on 5" hubs), worked perfectly, and were priced well and delivered on time. The only down side to my order is that we first accidentally ordered a complete axle assembly, hub-to-hub with 5 on 4.5" bolt pattern instead of the aforementioned 5 on 5". We called to get the right hubs sent and thought we could return the unused 5 on 4.5" hubs. Since we packed the bearings and mounted the hubs on the axle, we were told they were now used and could not be returned. They had not made one revolution on the spindle or borne any weight/load. I now have two small boat anchors. I'm very disappointed that we could not clean all the parts and return them. All of this occurred while stranded 250 miles from home while towing a tractor on our flatbed trailer. The new axle and hubs were installed while parked on a gravel road and we're traveling home as I write this. Again, the parts are working well, but the customer service part of the deal could have been better by allowing a return of the hubs we could not use.


Great service fast shipping


I have received all four hubs, it was the exact match for our application. Everything came as expected. Service is prompt, nice folks to deal with even on the phone.
I am a repeat customer.
I gave it 5 star, however if I had done a bit more research on the website for whole package with EZ grease part and new axle nut and hardware it would have been great but its my fault I got exactly what I ordered according to the part numbers.
I am pleased with etrailer.


Received 5 on 5 hub today and it fit perfectly. I first ordered a 5 on 4 3/4 hub and it was wrong. I had measured the bolt pattern across the hub from center to center stud for 3500 lb axle. That is the way we did it back in the day 30 years ago. Well after talking to Jamie at etrailer she explained I was wrong and had me measure stud to stud beside each other also and explained I needed 5 0n 5.She was very professional and very detailed and had me measure several times to make sure I received the right hub. Well she was right and it fit perfect. I will be buying all my trailer parts from etrailer from here on. Jamie your the the best. Its hard to find people who care or even try to help with anything anymore but Jamie acted like she had all day to help me. Thanks again


I ordered a 5 on 5 hub back in August. I got the hub. You sent me a 5 on 4.75. Great customer service...NOT!

Etrailer Expert

Sierra K.


I apologize for the inconvenience. Customer Service will reach out to you.


Ended up having to replace axle after ordering hub and spindle. Excellent order help, fast customer service. Everyone sells parts. It's the other elements of service that count. etrailer worked like that for me.


Product was exactly like it was advertised...very pleased


As always, my order was exactly what I needed for a long trip to ensure a problem free trip. The quality is good.

Mike B.


After many thousands of miles, still a good trouble free product. It makes traveling worry free.

Show More Reviews

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

  • How to Determine Replacement Hub Assembly for PacWest Utility Trailer
    It looks like PacWest has a number of different utility trailers with different capacities. In order to determine if the # AKIHUB-550-35-K will fit you are going to need to identify your axle or check your bearings. Assuming you have a 3,500 lb axle, more than likely this will fit. You could check your axle tag for identification and call PacWest or you could use your VIN number. The other option is to pull off your existing hubs and see which bearings you have now. The part number is...
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  • Correct Idler Hubs for Dexter Trailer Axle Beam with Standard Spindles - 3,500 Lbs
    Yes, the Trailer Idler Hub Assembly for 3,500-lb Axles part # AKIHUB-550-35-K will fit the Dexter Trailer Axle Beam with Standard Spindles part # T3584F-8974.
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  • Timbren 3500 lb Rated Axle-Less Suspension and Compatible Idler Hub for Home Made Trailer
    The 3500 lb Timbren Axle-Less suspension kit # ASR3500S05 would be a good choice. The spindles provided with the # ASR3500S05 would indeed be compatible with the bearing set provided with the # AKIHUB-550-35-K idler hub, but since the Timbren Axle-Less suspension you've chosen features E-Z lube spindles, you'd want to go with # AKIHUB-550-35-EZ-K which provides the E-Z lube compatible dust caps with removable plugs so you can easily access the grease zerk without needing to remove the entire...
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  • Hub Recommendation for Timbren Axle-Less System ASR1THDS03 with Jeep Bolt Pattern
    Typically the Jeep wheel bolt pattern is 5 on 5 inch. For an idler hub that will fit the spindles of the part # ASR1THDS03 and have the correct bolt pattern we have the # AKIHUB-550-35-K. This is a 3,500 lb trailer hub. The # ASR1THDS03 has a 4 inch lift built into it so it would work well for you since your Jeep is also lifted.
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  • Availability Of Trailer Idler Hub With 5 on 5 Bolt Pattern
    Currently the only trailer hubs we offer with a 5 on 5 bolt pattern are the Trailer Idler Hub Assembly for 3,500-lb Axles # AKIHUB-550-35-K, and the Trailer Idler Hub Assembly for 3,500-lb E-Z Lube Axles # AKIHUB-550-35-EZ-K which both have an outer diameter of 6-1/4". Both of these hubs are designed for spindles that use inner bearing # L68149 and outer bearing # L44649. To confirm that these hubs will fit your spindles you will want to remove one of your current hubs and verify that...
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  • Replacement Idler Hub Recommendation for 1999 EZ Loader Trailer
    The hub part # AKIHUB-550-35-K will work for you with it's included grease seal. The outer diameter may be different, but since that is what fits to the hub (what you are replacing) it would not matter. The inner diameter matches up which is the most important.
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  • Recommended Trailer Hubs With 5 on 5 Inch Bolt Pattern
    We have a few 5 on 5 inch hubs. They are all for 3,500 lb axles and have # L68149 inner bearing with 1.378 inch inner diameter and # L44649 outer bearings with 1.063 inner diameter. I've attached the link to the page of all your options which has both idler hubs like # AKIHUB-550-35-K and electric drum hubs like # AKHD-550-35-K.
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  • Replacement 5 On 5 Idler Hub For Homemade Trailer
    I have a couple options for your consideration as we do not have a replacement hub or bolt on spindle that will fit your combination. First you can remove your spindle brackets and have new #84 Spindles # TRU24FR welded in place of the current spindles. This would move you to the most common spindle size and allow you to use the Trailer Idler Hub Assembly # AKIHUB-550-35-K. This will come preloaded with the new bearings, races and grease seal installed and greased. The second option...
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  • Timbren Axle Less Setup for Off Road Camper that Uses Jeep Wheel Bolt Pattern
    For a Timbren Axle Less kit that can have a hub installed on it that uses the Jeep bolt pattern of 5 on 5 inch you'd want the part # ASR1THDS03 which also has a 4 inch lift built into it and a wider spindle setup that allows for wider tires as well. For an idler hub with the right bolt pattern that fits this you'd need the part # AKIHUB-550-35-K. For a hub drum we have the # AKHD-550-35-EZ-K.
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  • Replacement Hubs and U-Bolt Kit for 3,500 Pound Lippert Axle # LC35212150
    From my research your axle is a 3,500 pound, 2-3/8 inch diameter axle and since you have a 5 on 5 bolt pattern you likely have bearings # L44649 and # L68149. You'll want to verify this is correct with your current bearings. If this is the case for a hub and drum assembly I recommend # AKHD-550-35-EZ-K which is for E-Z Lube axles with a zerk fitting. If you have standard axles use # AKHD-550-35-K instead. If you only need idler hubs use # AKIHUB-550-35-EZ-K with E-Z Lube axles and #...
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  • Replacement Idler Hub for 3,500 lb Big Tex Trailer Axle with 5 on 5" Bolt Pattern
    The Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased # AKIHUB-550-35-K should fit just fine with your Big Tex trailer, however I do recommend double checking the bearings and seal to make sure it matches with what you currently have: Inner Bearing - L68149 Outer Bearing - L44649 Grease Seal - 58846 (Inner Diameter 1.719" and Outer Diameter 2.565") Attached is a review video for you to check out.
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  • Converting 3500lb Axle Hub From Grease to Oil Bath
    For the Trailer Idler Hub Assembly # AKIHUB-550-35-K to be converted to an oil bath you will need the Kodiak XL ProLube Kit # XLPROLUBE1980KIT. This will provide you with new caps that have the threaded see through cover to check your oil level. Also new oil seals to replace your current grease seals. I recommend picking up a spare Hub Body and Cap # xlprolube1980 and some extra Bearing Oil # XLPROLUBE to keep with the trailer in case one of the caps becomes damaged or fails to prevent...
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  • Dexter 008-256-07 Trailer Hub Replacement
    The hub you have is a 3,500 lb idler hub that has a 5 on 5 inch bolt pattern so you'd want the part # AKIHUB-550-35-K and you'd be set! This comes with bearings, lug nuts, a grease seal, and a grease cap/dust cover. Or, we have the part # 84550UC1-EZ which is already pre-greased and ready to install.
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  • Availability of Pre-Greased 3500 lb Idler Hub With 5 on 5 Wheel Bolt Pattern
    We do indeed offer an idler hub with a 5 on 5 inch wheel bolt pattern for a 3500 lb axle. The # AKIHUB-550-35-K uses the L68149 inner and L44649 outer bearing, you might want to check the reference numbers on your existing bearings to ensure that this replacement hub will be compatible with your spindles. The hub is pre greased, and includes the inner and outer bearing, the races, the grease seal, dust cover and 1/2 inch lug nuts. The bearings are pre-packed so all you'll need to do is...
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  • What Spindle Will Trailer Idler Hub Assembly # AKIHUB-550-35-K Fit
    The Trailer Idler Hub Assembly for 3,500 Pound Axles - 5 on 5 # AKIHUB-550-35-K referenced in your question are compatible with 3,500 pound axles with #84 spindles like the Redline # R20384EZ. I have attached an image showing the dimensions of this spindle for your review. This hub assembly includes the L68111 inner race and L44610 outer race as well as the inner bearing L68149 and outer bearing L44649.
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  • Off Road Timbren Axle Less Recommendation that Can Be Used with Jeep Bolt Pattern
    The part # ASR35HDS02 only has hubs with 6 lug patterns and up since it's a higher rated system. It's odd because the axle is 3,500 lb rated but designed for 6k rated hubs. Isn't the 5 lug pattern you mentioned the Jeep bolt pattern? Typically the Jeep wheel bolt pattern is 5 on 5 inch. For an idler hub that will fit the spindles of the part # ASR1THDS03 and have the correct bolt pattern we have the # AKIHUB-550-35-K. This is a 3,500 lb trailer hub. For a hub drum we have the # AKHD-550-35-EZ-K. The...
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  • Replacement Spindle and Hub for my Lippert 3500# Axle
    The #84 Spindle for 3,500-lb Trailer Axles part # TRU84FR and the Trailer Idler Hub Assembly for 3,500-lb Axles part # AKIHUB-550-35-K for a 5 on 5" wheel bolt pattern or the Trailer Idler Hub Assembly for 3,500-lb Axles part # AKIHUB-545-35-K for a 5 on 4.5" bolt pattern will have you set up and ready to go.
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  • Differences Between Trailer Idler Hubs With a 5 on 5 Bolt Pattern
    Each of the trailer idler hubs with a 5 on 5" bolt pattern are a fit for 3,500 lb axles and use inner bearing # L68149 (1.378" inner diameter), outer bearing # L44649 (1.063" inner diameter), and grease seal # 58846 (1.719" inner diameter) so you will want to make sure those are the correct bearings and seal for you. You can do this by taking apart your current hub and looking at the bearing numbers, or by using Digital Caliper # 301-17068 and measure your spindle to the thousandths of...
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    Image 1 for
  • 2k Rated Axle System for Off Road Trailer and Hubs with 5 on 5 inch Bolt Pattern
    From the research I did the 2015 Jeep Wrangler with 17-18 inch wheels would have a 5 on 5 inch bolt pattern. For a 2k rated Timbren Axle Less system that has a 4 inch lift built into it and is setup for wider tires we have the part # ASR2KHDS03 and then for an idler hub that will fit the spindle that has the correct bolt pattern you would want the part # AKIHUB-550-35-K.
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  • Timbren Axle Less Kit Recommendation with 4 inch Lift with Jeep Wheel Bolt Pattern
    The Jeep wheel bolt pattern is 5 on 5 inch like you mentioned which we can help with. For a hub that has a 5 on 5 inch bolt pattern to fit the spindles of the Timbren axle less kit part # ASR2KHDS03 you would want the Trailer Hub part # AKIHUB-550-35-K. This hub includes the bearings that the Timbren is designed to fit. This setup has a 4 inch lift and the hubs have the 5 on 5 inch Jeep bolt pattern.
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  • Can I Use Hubs with 3500-lb Capacity on Axle with 1750-lb Capacity If The Bearings Match Up?
    First things first; you can determine the specs on your current axle by checking for a sticker or plate attached to the axle itself (you'll usually find it close to the center of the axle). But with that being said, in the event that you can't find anything on the axle itself that would specify the capacity, you'll want to use the bolt pattern on your hubs and the bearings to provide you with a matching hub for your axle and spindle. I'll also say that the L68149 and L44649 are two of the...
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  • 3,500 lb Trailer Axle Recommendation with Hub/Drums and Assemblies that's 95 inches in Length
    The axle you'll want is the Dexter Trailer Axle Beam with E-Z Lube Spindles # 7359765 which matches the dimensions you listed of 95 inches from hub face to hub face and then 80 inches between spring seats. The U-bolt kit you need is the part # APUBR-1. And then for the hub drums with the 5 on 5 inch bolt pattern you'll want the part # AKHD-550-35-EZ-K. Then for just an idler hub with same bolt pattern # AKIHUB-550-35-K. For self-adjusting brake assemblies then you'd want the Dexter Nev-R-Adjust...
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  • What Size Trailer Wheel Center Hole Fits Trailer Idler Hub for 3,500lb Axles 5 on 5 AKIHUB-550-35-K
    Basically, 2.62 inches is the smallest wheel pilot hole for Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 Item # AKIHUB-550-35-K. The hub takes wheels as small as 14 inches and the smallest pilot hole diameter on a 14 inch wheel is 2.62 inches. The vast majority of 14 inch wheels will have a 3.19 or 3.27 inch pilot hole though.
    view full answer...
  • Which Grease Seal For Dexter 3500lb Idler Hub 008-256-07?
    The Dexter 3500lb Idler Hub 008-256-07 you have on your Jamar Trailer uses grease seal # RG06-050. If you need bearings as well you can use Bearing Kit # BK2-100 which includes inner bearing # L68149, outer bearing # L44649, races, grease seal # RG06-050, and a new cotter pin and tang washer. I included videos of the products mentioned for you to take a look at .
    view full answer...

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