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Dexter Trailer Idler Hub Assembly for 12,000-lb Axles - 8 on 6-1/2 - Oil Bath

Dexter Trailer Idler Hub Assembly for 12,000-lb Axles - 8 on 6-1/2 - Oil Bath

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Dexter Axle Trailer Hubs and Drums - 8-214-8UC1
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Hub fits 12,000-lb general-duty Dexter axles. Inner bearing (3984) and race, outer bearing (28682) and race, oil seal, cap, and lug nuts included. Oil bath system allows for easy maintenance. Drum and mounting bolts (7-103) not included. Lowest Prices for the best trailer hubs and drums from Dexter Axle. Dexter Trailer Idler Hub Assembly for 12,000-lb Axles - 8 on 6-1/2 - Oil Bath part number 8-214-8UC1 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (2)
  • Q & A (4)
  • Videos (1)
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Dexter Axle Trailer Hubs and Drums

  • 8 on 6-1/2 Inch
  • For 12000 lbs Axles
  • Hub
  • Oil Bath
  • 28682
  • 5/8 Inch Stud
  • 3984
  • Dexter Axle

Hub fits 12,000-lb general-duty Dexter axles. Inner bearing (3984) and race, outer bearing (28682) and race, oil seal, cap, and lug nuts included. Oil bath system allows for easy maintenance. Drum and mounting bolts (7-103) not included.


Features:

  • Trailer hub assembly fits idler axles
  • Oil bath lets you check lubricant level without disassembling the hub
    • Look through clear oil cap to check lubrication
  • Bearings, races, oil seal, oil cap, retaining ring, and lug nuts are included
  • Sturdy iron construction
  • Hub is made in the USA


Specs:

  • Application: 12,000-lb axles
  • Bolt pattern: 8 on 6-1/2"
  • Pilot hole diameter: 4-3/4"
  • Wheel bolt diameter: 5/8"
  • Weight capacity: 6,000 lbs


Bearing and Seal Information

  • Bearings (included)
    • Inner bearing: 3984 (2.625" inner diameter)
    • Outer bearing: 28682 (2.25" inner diameter)
  • Unitized oil seal (included): 10-56
    • Inner diameter: 3.125"
    • Outer diameter: 4.5"
  • Oil cap kit (included): RG04-270
    • 21-36 Cap
    • 10-50 O-ring
    • 46-32 Plug

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"


8-214-8UC1 Dexter Trailer Idler Hub Assembly for 12,000-lb Axles - 8 on 6-1/2 - Oil Bath

Item # 8-214-8UC1





Video of Dexter Trailer Idler Hub Assembly for 12,000-lb Axles - 8 on 6-1/2 - Oil Bath

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




Video Transcript for Review of Dexter Axle Trailer Hubs and Drums - Hub - 8-214-8UC1

Today, we're going to take a look at the Dexter Oil Bath Trailer Hub Assembly for 12,000-pound axles. Has an eight on six and a half inch bolt pattern. Now, this hub will fit the 12,000-pound high or low-profile Dexter axles. This is an oil bath design, so it does let you check the lubricant level without disassembling the hub. Basically when your oil cap is installed, you can see it's a clear cap and you can look through there to check lubrication. If you do oil you can just pop out that center plug here and put your oil in.

Now, the hub itself is a sturdy iron construction. It does include everything laid out here on the table. It includes both the inner and outer bearings, the bearing races, which are pre-installed in the hub, the oil seal, the oil cap, the wheel retaining ring, and eight lug nuts. Bolt pattern on this is an eight on six and a half inch bolt pattern. Pilot hole diameter is four and three-quarter inches.The wheel bolt diameter is five-eighths of an inch.

Weight capacity on this hub is 6,000 pounds. So when this is used with one on the other side, it'll meet your 12,000 pound axle capacity. And this is designed to use a drum size of 12 and a quarter inch by five inch. Now the bearings they come with, the inner bearing is part three nine eight four. Outer bearing is part two eight six eight two.

Oil seal is 10 dash five six. The oil cap kit is part number RGO four dash two seven oh. And when I say kit, basically it's including the cap itself, the O-ring here that seals it, and then the rubber plug on the top, the wheel retaining ring, and an eight of the five-eighths inch by 18-90 degree cone lug nuts. But that should do it for the review on the Dexter Oil Bath Trailer Hub Assembly for 12,000-pound axles with the eight on six and a half inch bolt pattern..


Customer Reviews

Dexter Trailer Idler Hub Assembly for 12,000-lb Axles - 8 on 6-1/2 - Oil Bath - 8-214-8UC1

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Hub fits 12,000-lb general-duty Dexter axles. Inner bearing (3984) and race, outer bearing (28682) and race, oil seal, cap, and lug nuts included. Oil bath system allows for easy maintenance. Drum and mounting bolts (7-103) not included.

- 8-214-8UC1
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- 8-214-8UC1
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Ask the Experts about this Dexter Axle Trailer Hubs and Drums

  • Replacement Bearings for Dexter Axles with 12000-lbs Capacity
    The Replacement Trailer Hub Bearing # 3984 has an inner diameter of 2.625", so it's possible that it will work on your 12,000-lbs Dexter axle, but you'll need to know what bearings are in your hubs to confirm this is the correct replacement bearing. This bearing is designed to fit in Dexter hubs with part numbers: 8-216-5, 8-214-8, 8-217-5 and 8-272-5; the only hub we currently have available out of that group is the 8-214-8 with part # Dexter Trailer Idler Hub Assembly for 12,000-lb Axles...
    view full answer...
  • Dexter D120 Axle Replacement Parts
    Your Dexter D120 axle is rated for 11,999.80lbs, has a spring center measurement of 45.5" and track width of 74". It is an underslung axle that uses 3" wide 30" slipper springs rated at 6,000lbs each. The brakes are 12-1/4" x 5" electric brakes and the hub is an oil bath with 8 on 6.5" wheel bolt pattern. It was produced in March of 2000. Electric Trailer Brake Kit # AKEBRK-12 Dexter Trailer Idler Hub Assembly # 8-214-8UC1 Inner Hub Bearing # 3984 Inner Race # 3920 Outer Hub Bearing...
    view full answer...
  • 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...
  • Disc Brake Assemblies For Changing A 12,000LB Dexter Axle To Hydraulic Disc Brakes
    We have the Kodiak Disc Brake Kit # K2R1258L12 that is designed to fit your 12,000lb Dexter axle. You will need to ensure that you have the Standard Duty 12,000lb axle as this kit will not fit if its a Heavy Duty 12,000lb axle. If you need help determining which you have please let me know your axle serial number that is on the information sticker for the axle or can also be found stamped in the axle tube on the rear of the axle on the passenger side. The Kodiak Disc Brake Kit # K2HR12A11-120DW...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Mike S
Written by:
Mike S

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