Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube

Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube

Item # 8-385-81SP

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Retail:$589.10

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Trailer Hubs and Drums

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Shipping Weight: 36 lbs

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Lowest Prices for the best trailer hubs and drums from Dexter Axle. Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube part number 8-385-81SP can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (4)
  • Q & A (9)
  • Videos (1)
  • Photos
  • Why etrailer?

Dexter Axle Trailer Hubs and Drums - 8-385-81SP

  • 8 on 6-1/2 Inch
  • For 7000 lbs Axles
  • Hub with Integrated Drum
  • Nev-R-Lube
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Dexter Axle
  • 9/16 Inch Stud


Features:

  • Used on Dexter 50MM Nev-R-Lube Axles
  • Capacity of 3,500 lbs per each
  • Works with both electric and hydraulic brakes
  • Drum size: 12" x 2"
  • Stud size: 9/16"
  • Bolt pattern: 8 on 6-1/2"
  • Bearing and snap rings included (31-71-3 bearing)


008-385-81 Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube

Replaces 8-385-81 SP



8-385-81SP Installation InstructionsInstallation Details 8-385-81SP Installation instructions



Video of Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube


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




Video Transcript for Dexter Axle Trailer Hubs and Drums - Hub with Integrated Drum - 8-385-81SP Review

Today, we're going to take a quick look at Dexter Axles, Trailer Hub and Drum Assembly, part number 8-385-81SP. This hub and drum assembly is designed to be used on Dexter 50-mm Nev-R lube axles. That has a capacity of 3500 pounds so when paired up with another one, you'll have an axle capacity of 7000 pounds. It has an 8 on 6-1/2 bolt pattern. If we were to measure from one stud in the center directly across to the center of the other stud, we get about 6-1/2 inches for our 8 and 6-1/2 inches bolt pattern. The bearings, races and seal are all included and pre-fitted into the center of the hub.

You'll just need to source the cap to complete it. Now, I'll flip it over and take a look inside. We'll measure our diameter across the inside and we get 12 inches. We'll measure our depth and we get about 2-1/4 inches, which means we can use this hub and drum assembly with 12-inch by 2-inch brake assemblies. And that's it for our quick look at Dexter Axles, Trailer Hub and Drum Assembly, part number 8-385-81SP..


Customer Reviews

Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube - 8-385-81SP

Average Customer Rating:  5.0 out of 5 stars   (4 Customer Reviews)


- 8-385-81SP
by:

We were going camping with friends at Carlyle lake. Two of these friends were Steve and Nancy. Nancy works at etrailer. On the way my breakaway brake was accidentally pulled by a piece of equipment in the back of the truck. I checked the main plug but not the breakaway. Needless to say by the time Igor there 50 miles my brakes and drums were toast. Steve got om the phone to Nancy and ordered me a new set. Nancy who was working picked them up and brought them to me the next day. Thank to them and Steve C. We had the brakes in a day and had them replaced and we are back rolling safely again. The product was an easy install from watching the video. Thanks again to my friends at etrailer. They are the greatest. 706092



- 8-385-81SP
by:

Ordered my hub and received it faster than quoted. Ordering was a breeze through their customer service. Back on the road quickly. Thanks!!! 583051



- 8-385-81SP
by:

Ordered lots of parts on Monday, received most of them by Thursday. The received parts were well packaged and undamaged. A few of the parts they didn't have in stock so they had those drop-shipped to me which should be delivered in the next couple of days. No supplier I have ordered any parts from has such a great technical reference web site or personal customer support. Yea, Rebecca - Well Done! Yes, I'm very happy with the pricing. Thanks for your great support and I look forward to doing business with them again. More info to follow as soon as I can get the parts installed on my trailer. 326664



- 8-385-81SP
by:

My husband installed the hub and bearing and there has been no problem with it in the past year. 250152


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Ask the Experts about this Dexter Axle Trailer Hubs and Drums

Do you have a question about this Trailer Hubs and Drum?


  • Comparing The Electric Trailer Brake Kit # AKEBRK-7-SA To 7K Dexter Brake Assemblies # 23-465/23-464
  • The Electric Trailer Brake Kit - Self-Adjusting - 12" - Left and Right Hand Assemblies - 5.2K to 7K # AKEBRK-7-SA are the equivalent of the Dexter 7K assemblies # 23-465 and # 23-464. They are actually a little nicer than the Dexter assemblies in my opinion because the brake shoe material is cut instead of scored and broken off so there is a cleaner line for less wear and tear at the edge of the material. They are absolutely compatible with the Trailer Hub & Drum Assembly - 7,000...
    view full answer...

  • What Is the Torque Spec for a Nev-R Lube Spindle Nut
  • The Dexter Spindle Nut # 6-183 used with your 50mm Nev-R-Lube bearing # 31-71-3, requires 145 to 155 ft/lbs of torque, according to the manufacturer's specifications. See attached diagrams for step by step instructions.
    view full answer...

  • Dexter Nev-R-Lube Hub with 8 on 6-1/2 Bolt Pattern for 5,200 Pound Trailer Axle
  • I did some checking and what you have is a derated 6 or 7K axle that uses the 7K Nev-R-Lube hub # 8-385-82UC3. It takes the 50mm Nev-R-Lube bearing # 31-71-3. I have included links to videos on both of these parts for you.
    view full answer...

  • Can I Put Different Hub Assembly on 5th Wheel
  • It looks like your 5th Wheel currently is a Nev-R-Lube Hub and Drum Assembly for 7,000 lbs Axles with an 8 on 6-1/2 bolt pattern # 8-385-81SP. This is the assembly that you will want to order for your 5th Wheel. I have included a video review of this assembly for you to check out. I spoke with my contact at Dexter and she said you cannot replace your Nev-R-Lube assembly with a standard hub and drum assembly because the bearings and spindle are different. For an electric brake assembly...
    view full answer...

  • Replacement Hub Drum for 7000 lb Dexter Nev-R-Lube Axle
  • You will want the Trailer Hub & Drum Assembly - 7,000 lbs Axles - 8 on 6-1/2 - Nev-R-Lube # 8-385-81SP or # 8-385-82UC3 which also includes the lug nuts and grease cap. Both assemblies include the bearings and there is not a hub that comes without them. The bearings are not pressed in but rather have a snap ring. I recommend keeping your current bearings as a backup or removing the new bearings to keep until needed.
    view full answer...

  • How to Avoid Over-Filling Hubs with Grease
  • The most common cause for wheel bearing grease to leak onto drum brake components is accidental over-filling. Once grease gets onto the brake pads it is neither easy nor a terribly good idea to clean the grease off them. They really should be replaced if they become fouled with bearing grease. The best ways to prevent over-filling your hubs are to use caution when pumping grease into a spindle zerk fitting, such as the one on spindle # R50342EZ if this is what spindle you have. Pump...
    view full answer...

  • Replacement Hub and Bearing for Dexter Nev-R-Lube Axles
  • Normally you would go by the bearing numbers stamped into the sides of the bearing. If you do not have those bearings though then the spindle will have to be measured. Since you have Nev-R-Lube axles though there are not that many options. If the spindle is 50mm in diameter then # 8-385-81SP or # 8-385-82UC3 would be correct. If the spindle is 42 millimeters then you would need # 8-388-80UC3 which has a 6 on 5-1/2 inch bolt pattern.
    view full answer...

  • Does a Trailer Hub have a Specific Torque Spec
  • The general rule is to use channel locks to tighten the castle nut, back it off some, tighten it again (should go a little further), back it off again and repeat this process until the hub is seated where it should be. Then you would back off the castle nut one notch if it had a pin or tang washer, or no more than a 1/4 turn if it doesn't.
    view full answer...

  • Measuring a Trailer Brake Hub and Drum Assembly to Select a Replacement
  • There are usually identifying marks and other information on the outside of a trailer brake drum that indicates what it is. But if you go by the inner width and diameter and select the correct bolt pattern to match what you have then the part number of the old hub is not needed. I have included a picture showing where the measurements are taken. I have also included a link to our help article on determining bolt pattern.
    view full answer...


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Info for this part was:

Installed by:
Patrick B
Expert Research:
Michael H
Expert Research:
Adam R
Updated by:
Adele M
Updated by:
Sarah W

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