Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Rating: 
3 reviews
Code: 42866UC3
Retail:$143.48
Price:$84.95
Shipping Weight: 44 pounds
Shipping SpecialTrailer hub-and-drum assembly includes lug nuts, inner bearing (25580) and race, outer bearing (14125A) and race, grease cap and grease seal. Fits 5,200-lb to 7,000-lb axles with spindles that require a 2-1/4" ID grease seal.
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.
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.)
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.)
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.
Video of Trailer Hub and Drum Assembly - 5,200-lb, 6,000-lb and 7,000-lb Axles - 8 on 6-1/2
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today were going to review part number 42866UC3. This is the Dexter Trailer Hub and Drum Assembly 8 on 6-1/2-inch bolt pattern. This trailer Hub and Drum Assembly will include the eight 1/2-inch cone seat lug nuts. It will include the inner bearing, part number 25580, the outer bearing part number 14125A, it will include the 2-1/4 grease seal and the grease cap. The races, the bearing races are also included and they will be actually preinstalled into the hub. The outer race would be right here.
The inner race would be right in there. All of our Hub and Drum Assemblies will come with the races preinstalled. The application for this Hub and Drum Assembly is for most 5200 to 7000-lb Dexter axles with spindles that will require either a 2-1/8 inch grease seal or a 2-1/4 inch inside diameter grease seal. The drum dimension is 12 inches diameter by 2 inches wide. The bolt pattern is an 8 on 6-1/2 inch bolt pattern.
The stud diameter is 1/2 inch. This Hub and Drum Assembly will fit on spindles that are either 2-1/8 or 2-1/4. It does come with the 2-1/4 inch inside diameter grease seal. If you do need the 2-1/8 seal you will need to use part number 10-1. The capacity on this assembly is 3500 lbs.
So when this is used with another assembly on the other side it will give you the maximum capacity of 7000 lbs. Now just a couple dimensions. The bolt pattern is an 8 on 6-1/2 inch which means eight lugs, 6-1/2 inch diameter and basically the way to measure that usually on a bolt pattern that is an even number of lugs like in this case eight. You just measure directly across from the center of one to the center of the other. Thats 6-1/2 but its hard to do because of this higher hub in the middle.
So if you just measure from a one wheel stud next to the other wheel stud and if it measures 2-1/2 inches that would also mean its an 8 on 6-1/2 inch bolt pattern. The other dimension would be the drum dimension which is 12-inch diameter and 2 inches wide. So 12-inch diameter on the inside would be 12 inches, the diameter is 2 inches. And that should do it for our review on part number 42866UC3.
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Average Customer Rating: 5.0 out of 5 stars (3 Customer Reviews)
by: Brian w06/27/2012
Is this review helpful?
Katherine jason was most helpful ! Everything looks great except brake shoes on r.h. brake assembles were chipped up during shipment but still usable . I would definately order again !45912
by: ted f.06/01/2012
Is this review helpful?
Products are good, easily identified, and no surprises. The service is excellent, very dependable and delivery is very fast. Very happy dealing with etrailer; highly recommended to freinds. Excellent website too.42282
by: mike d06/30/2011
Is this review helpful?
new dexter wheel hubs, delivered on time, new dust caps, new seals (2 1/4") , new lugs and nuts , new bearings. one bearing is the wrong size, but I dont care will pick up locally. these were backordered for most places in western NY, got em just as fast and far better price. will be ordering more soon. currently servicing 6 trailers with this or similar hub.18322
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