1. Trailer Hubs and Drums
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Dexter Trailer Idler Hub Assembly for 6,000-lb Axles - 6 on 5-1/2

Dexter Trailer Idler Hub Assembly for 6,000-lb Axles - 6 on 5-1/2

Item # 42655UC1
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Trailer Hubs and Drums
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Shipping Weight: 14 lbs
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42655UC1 - 1/2 Inch Stud Dexter Axle Trailer Hubs and Drums
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Hub is designed for use on trailer idler axles. Fits 6,000-lb axles with #42 spindles. Inner bearing (25580) and race, outer bearing (15123) 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 6,000-lb Axles - 6 on 5-1/2 part number 42655UC1 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (14)
  • Q & A (207)
  • Photos
  • Why etrailer?

Dexter Axle Trailer Hubs and Drums - 42655UC1

  • 6 on 5-1/2 Inch
  • For 6000 lbs Axles
  • Hub
  • Standard
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • 18 Inch Wheel
  • 18-1/2 Inch Wheel
  • 15123
  • 1/2 Inch Stud
  • 25580
  • Dexter Axle

Hub is designed for use on trailer idler axles. Fits 6,000-lb axles with #42 spindles. Inner bearing (25580) and race, outer bearing (15123) 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: 6,000-lb trailer axles with #42 spindles
  • Wheel size: 16" to 18-1/2"
  • Bolt pattern: 6 on 5-1/2"
  • Grease cap flange diameter: 2.44"
  • Wheel bolt diameter: 1/2"
  • Weight capacity: 3,000 lbs


Bearing, Race, and Seal Information

  • Bearings (included)
    • Inner bearing: 25580 (1.75" inner diameter)
    • Outer bearing: 15123 (1.25" inner diameter)
  • Races (included)
    • Inner race: 25520
    • Outer race: 15245
  • Grease seal (included): 10-36
    • Inner diameter: 2.25"
    • Outer diameter: 3.376"

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"


K08-213-9C Dexter Trailer Idler Hub Assembly for 6K Axle with Hardware - 6 on 5-1/2

Replaces 42655UC1






Customer Reviews

Dexter Trailer Idler Hub Assembly for 6,000-lb Axles - 6 on 5-1/2 - 42655UC1

Average Customer Rating:  4.8 out of 5 stars   (14 Customer Reviews)

Hub is designed for use on trailer idler axles. Fits 6,000-lb axles with #42 spindles. Inner bearing (25580) and race, outer bearing (15123) and race, grease seal, grease cap, wheel bolts, and lug nuts included.

- 42655UC1
by:

Couldnt be happier with these hubs! First one I pulled out of the box, I just verified that the races were seated, and installed after packing the bearings. One hub out of the four had a damaged bearing and seal, but it was due to packing. No biggie, was able to "coerce" the bearing and seal to look "normal". Had all four corners done and back on the road in less than 4 hours, which included uninstall of old hubs, cleaning, packing and installing new parts. Quick shipping as well. eTrailer is a great place to shop!



- 42655UC1
by:

Always my go to for trailer parts.



- 42655UC1
by:

I used 42655UC1 hubs on mobile home axles just required different size seal to fit spindle, great product & you guys were very helpful with helping find a hub that would fit,very pleased with this product and service.



- 42655UC1
by:

Product as expected, delivery sooner than expected, overall very good. Replaced old hubs on moblie home axles. Very easy to do. Great service.



- 42655UC1
by:

Good Experiene Website laid out good, when ordering, it showed me what products went together instead of searching to find out like which hub goes to what axle and vise versa. Fast shipping and good products. Recommend them to anyone and everyone looking for trailer parts.



- 42655UC1
by:

PACKING IN BOX WAS A LITTLE LITE BUT PARTS WERE OK



- 42655UC1
by:

worked fine



- 42655UC1
by:

What a fast turn around



- 42655UC1
by:

Great service and fast shipping - Ricky was a big help making sure that everything fit together - thanks a lot!



- 42655UC1
by:

Still rolling. No complaints



- 42655UC1
by:



- 42655UC1
by:

Very helpful and pleasant purchase expe rience.



- 42655UC1
by:

very good



- 42655UC1
by:

I've not have a chance to use them.


14
14

Ask the Experts about this Dexter Axle Trailer Hubs and Drums

  • Replacement Brake Assemblies and Hub Drums for 3500 lb Axle
    Given the bearing numbers you provided, you have a typical 3500 lb axle which uses a 10 inch brake assembly. I'd recommend going with a self adjusting brake assembly like # AKEBRK-35-SA which includes a left and right assembly. The mounting hardware is available separately as # BRKH10B. I'd also suggest taking a look at the armature surface of the brake drum that your brake magnet rides against. If it's grooved at all, you'll want to replace it as the magnet won't get the best grab...
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  • Recommended Replacement Brake Assembly for Old Trailer With Wide 5 lug Brake Flange
    Although we might have a solution for you, we don't sell any brake assemblies that would be compatible with the brake mounting flange shown in your photo. You've got a few options. • You could remove the existing brake flanges if possible and replace them with modern 5 bolt. The mounting flange you need would depend on the diameter of your axle beam. • You could also replace the spindles with an axle stub that has an integrated brake flange and uses modern, easily available...
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    Image 1 for
  • How Can I Identify an Axle Without a Sticker?
    Thank you for the pictures! It looks like you've got some sort of square drop axle on your trailer and if you can't find an identifying sticker, I can still help you figure out what you've got so that you can make the swap to electric brakes on your trailer. It looks like you've got 6 bolts on the wheels, which can help narrow down our search, but we'll need to know what size the brakes on the trailer are and if possible, what size (or number) the inner and outer bearings are on the...
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  • Replacement Wheel Stud for 3,500 lb Axle Hub
    Most likely you have a Dexter 3,500 lb hub which uses basically the standard wheel studs as other 3,500 lb hubs as well. So the correct replacement wheel stud would then be the part # 7-122.
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  • Can Hub and Drums On 1990 Four Winns Boat Trailer Be Reused When Replacing Brakes?
    You do not necessarily need to replace the hub and drum assemblies on your 1990 Four Winns Tandem Axle Boat Trailer as long as they are still in good shape. The only way to tell will be removing them and checking the inside where the brake pads and magnets contact the drum for any uneven wear. While the drum is off you will want to measure the depth of the drum as shown in the included diagram, as the # AKFBBRK-35-D you were looking at are only 2-1/4" deep. If you find that you...
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  • Jayco Jay Flight 26BHS Axle Capacity
    I took a look at the specs for the Jayco Jay Flight 26BHS and based on that and the photo you sent in (thank you for that) it does have two 3,500 lb axles. Since you have a 10 inch drum the Electric Trailer Brake Kit # AKEBRK-35-SA, which is for 3,500 lb axles, will work so long as you also have a 4-bolt mounting flange. These brakes are 10" diameter x 2-1/4" wide so also be sure your drum has that width and you'll be set. The only other thing you will need is the Mounting Hardware...
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  • Determining Diameter of Axle on 2007 Jayco Octane Toy Hauler
    Sounds like you are trying to determine the diameter of your trailer axle. Measuring an axle, especially a round one, can be difficult. I recommend using a set of dial or digital calipers to get an accurate measurement. Typical Axle Diameters Based on Axle Capacity 1,000-lb - 2,000-lb Axles: 1-1/2" - 1-3/4" diameter 3,500-lb Axles: 2-3/8" diameter (can have a 3-1/2" diameter, but rarely) 6,000-lb - 7,200-lb Axles: 3" diameter 8,000-lb Axles: 3-1/2" diameter 9,000-lb Axles: 4"...
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  • Can a Spindle be Replaced on a 7,000 Pound Trailer Axle
    You are describing a spindle like # TRU37FR but it uses a tang washer, not a cotter pin because of the grease fitting. The problem is that aftermarket spindles are under rated compared to the OEM counterparts. This is actually not a bad thing because cutting off the old spindle and welding on a new one is a specialized job. If not done right it could cause tire wear problems, trouble with the suspension, tracking and sway problems and so on. It would be better to replace the axle. We...
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  • What Weight Capacity is an Axle with 8 Lugs
    There really is a wide range of axles that could potentially be on this trailer. We carry hubs with 8 on 6-1/2" bolt patterns that can be used on axles anywhere from 5200-lbs capacity, like the # 8-219-4UC3-EZ all the way up to 12000-lbs like the # 8-214-8UC1. The best way to determine the axle capacity is going to be checking the spec sticker/plate that can be found towards the center of the axle. If you can't find a spec sticker, knowing the bearings, races and seals also may provide...
    view full answer...
  • Easy Way to Determine Dexter Axle Diameter by Measuring
    The quickest way we can help you determine your Dexter axle capacity is going to be to measure the diameter of it. I can email them your serial number and they'll get back to me hopefully quickly but if measure your diameter you'll know immediately: Typical Axle Diameters Based on Axle Capacity - 1,000-lb - 2,000-lb Axles: 1-1/2 inch - 1-3/4 inch diameter - 3,500-lb Axles: 2-3/8 inch diameter - 5,200-lb - 7,200-lb Axles: 3 inch diameter - 8,000-lb Axles: 3-1/2 inch diameter - 9,000-lb...
    view full answer...
  • Upgrading Underrated Axles on 31-4BH Coleman Lantern Travel Trailer
    If I'm reading you correctly, your travel trailer has a GVWR of 10K, but has two 3500 axles? If that's the case, your axles are horrifically overloaded and should be upgraded. Installing 12 inch brake assemblies (which likely wouldn't work because the available 12 inch drums would use a different bearing set than a 3500 lb axle) would provide better braking, but wouldn't fix the fact that the axles are underrated. Your best course of action would be to replace your current axles with...
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  • How to Determine Dexter Axle Weight Capacity
    I reached out to my contact at Dexter and they don't have any information based on that serial number in their system. They recommended taking off one of the wheels and on the hub there will be a number that starts with 8 followed by a dash and then 3 more numbers. We can help with axle capacity based on that number. As far as camber, all through axles will have a slight bow in the middle which would appear to be a camber when unloaded but they do even out when under load so there...
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  • How to Select Axle for Fabricating Car Hauler Trailer with GVWR of 2200-lbs
    We do not sell torsion axles but they will carry a weight capacity rating just like leaf spring beam axles, which we do offer. A torsion axle can be used continuously up to its rated capacity so long as there is no deterioration to the rubber cords inside it. This can be tough to determine visually but if you can see ANY of the cord exposed (due to "torsion creep") then the axle is done and should be replaced. For a trailer that will have a gross loaded weight of 2200-lbs you could use...
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  • What Should Axle Rating Be on 5th Wheel Trailer with 12400-lb Gross Weight Rating
    A 5th wheel trailer that is rated for 12400-lbs will need to have tandem axles each rated for 7000-lbs. Due to shipping weight limitations we do not carrry axles that heavy; we do ship beam axles up to a 3500-lb rating, such as Dexter # T3584F-EZ-8974. Our main page for axles is linked for your reference.
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  • How To Determine Trailer Axle Weight Capacity And Replacement Hub Components
    Depending on the age and condition of the trailer, it may have a sticker or plate that has the weight capacity of the trailer listed. If you aren't able to find a sticker or plate, you can determine the weight capacity of your axle by using a precision tool like part # PTW80157. Here are the typical axle diameters between the hubs based on axle capacity. You will need to measure the axle beam. the tire does not actually have to be removed for that. - 1,000-lb - 2,000-lb Axles: 1-1/2...
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  • Dexter vs Lippert vs AL-Ko Trailer Axles
    Dexter axles are the industry leader in terms of overall quality. They are made in the USA and if you look around online or talk to people in the RVing community they general consensus is the Dexter axles are just better made overall and will be more reliable. I attached a link to a page that has all of the Dexter axles we offer currently as well.
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  • What is the Capacity of a Round Trailer Axle with a 3 Inch Diameter
    Axles rated for 6,000 to 7,200 pounds usually will have 3 inch diameters. But it is possible for 5,200 pound axles or even 3,500 pound axles to have a 3 inch diameter axle. You could err on the side of caution and say each axle is rated for 3.5K for a total of 7K for the 2 axles combined. But there should be some information somewhere on the axles that indicate the capacity. There could be a tag that explicitly states the capacity or some numbers that would indicate the model of the...
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  • Tips for How to Identify a Trailer Axle
    Depending on how the trailer was made, there will be a few spots you can check to identify the axle. First, if the trailer was pre-made by a specific company, you may be able to find this information in either the paperwork or on a placard somewhere on the frame. Sometimes, the axle identity is stamped into the axle itself or into the hub if it was purchased as a complete assembly. If you cannot find any markings or notation for the axle, you will need to look for replacement parts...
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  • Replacement Hub Recommendation for a Calkins Boat Trailer
    The bolt pattern is helpful information for picking out the correct replacement hub, but you need more info. You will want to remove your current hub to get the bearing numbers off of the bearings in your hub. With that info I can help you pick out the correct hubs. If you cannot see the part numbers on the bearings or grease seal, then you can take a few measurements on your spindles. I recommend using a precise measuring tool such as a dial caliper because these measurements will...
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    Image 1 for Image 2 for
  • Determining Axle Weight Capacity of 3 inch Axles
    Typically axles with a 3 inch diameter have a range of weight capacity ranging from 5,200 to 7,200 pounds. This is the weight capacity of each axle. Therefore, you camper trailer axles could have a combined weight capacity ranging from 10,400 to 14,400 pounds. Please keep in mind that this is an approximate weight axle range and your specific trailer axles may be different, especially considering the age of your trailer. I have also included some helpful articles that might of beneficial...
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  • What is the Weight Capacity of a Dexter SLR P16 Axle
    If you can read me the serial number on the axle I can then call the manufacturer, Dexter, and find out the weight capacity but if not you can measure the diameter and use the chart below to determine axle capacity. The "P16" is the plant it was made. - 1,000-lb - 2,000-lb Axles: 1-1/2 inch - 1-3/4 inch diameter - 3,500-lb Axles: 2-3/8 inch diameter - 6,000-lb - 7,200-lb Axles: 3 inch diameter - 8,000-lb Axles: 3-1/2 inch diameter - 9,000-lb Axles: 4 inch diameter - 10,000-lb +...
    view full answer...
  • Can I Upgrade from 6 Lug to 8 Lug Wheels to Help Increase Weight Rating of my Trailer?
    Because the total weight capacity of your trailer is limited by the lowest rated component, your axle capacity won't be increased by adding hubs with more lug nuts to the equation-even if they are rated higher than the axle. Moving to 8-lug hubs sounds like you want to move from 5,200-lb axles up to 7000-lb axles. If this is the case, then we have a few options for you listed below; I've also linked below all of the 7000-lb axles we currently have available. Best Upgrade: Timbren Axle-Less...
    view full answer...
  • Is a 2-3/8 inch Diameter Axle a 3,500 lb Capacity Axle
    2-3/8 inch diameter axles are 3,500 lb axles. If you happen to be looking for a replacement 3,500 lb hub we have several at the attached link. The most popular being the part # AKHD-545-35-EZ-K.
    view full answer...
  • How To Determine Weight Capacity Of Torsion Axles
    Since there can be many combinations of axles with hubs and bolt patterns, the best way to determine your axle weight capacity is by using the part numbers of the inner and outer bearings in the hub. I have attached a photo that shows you where you can locate the part number on your bearings. With this information we can give you a more accurate weight capacity for your axles. If you cannot find the numbers on your bearings, you can take some measurements on your spindle. this would...
    view full answer...
    Image 1 for
  • Spindle Recommendation for Trailer with 3 Inch Round Axle with 4 on 4 Wheel Bolt Pattern
    Technically, any of our spindles can be welded on the end of your 3 inch diameter axle. However, the 4 on 4 hubs indicate a lower weight capacity. So, if you're wanting to keep the 4 on 4 bolt pattern and reuse your existing wheels, the only option is the BTR E-Z Lube Spindle w/ Brake Flange # TRU27FR. This spindle is designed for 2,500 lb axles and will allow you to use industry standard hubs # 8-173-16UC3. This means that you won't have any issues finding replacement or maintenance...
    view full answer...
  • What is the Weight Capacity for an Axle With a 3 Inch Diameter
    I believe your 3 inch axle has a weight rating of 3,500 lbs. I am not familiar with bearing # L66149 that you referenced however, there is bearing # L68149 which is what you may have. Please double check your bearing numbers. Bearing # L68149 has an inner diameter of 1.378 inches and should be your inner bearing. Bearing # L44649 has an inner diameter of 1.063 inch and should be the outer bearing. By measuring your bearings with a dial caliper you can verify if these are correct. Providing...
    view full answer...

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