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When you’re hauling serious weight, you need braking parts that hold up under pressure. This Dexter 12-1/4" hub-and-rotor assembly is built for 7,000-lb axles, giving you the strength and reliability needed for heavy duty towing. The cast iron construction provides solid durability, while precision machining minimizes runout and warping for smoother stops every time.
Braking generates a lot of heat, especially when you’re loaded down or driving on long grades. The vented rotor design in this hub assembly regulates temperature to prevent overheating and heat-related damage. That means cooler operation, longer pad life, and consistent braking performance mile after mile.
Moisture and road grime can quickly corrode bare metal parts. The E-coat finish on this Dexter hub-and-rotor provides a protective barrier against corrosion and wear, keeping the surface smooth and strong through all kinds of weather. It’s a durable coating that helps extend service life and keeps the braking surface in top shape longer.
No need to piece together parts or press in races yourself. This assembly comes complete with inner bearing (25580), outer bearing (14125A), inner race (25520), outer race (14276), grease seal (GS-2250DL), and a grease cap—everything matched to work together. With the correct 9/16" wheel studs, 8 on 6-1/2" bolt pattern, and fitment for 16", 16-1/2", and 17" wheels, it’s built to slide on smoothly so you can get back on the road faster.
1. Count the lug holes
Look at the wheel hub or the back of the wheel and count how many lug holes there are(also called bolt holes).
Common configurations include: 4-lug, 5-lug, 6-lug and 8 lug
2a. For even lug counts (4-lug, 6-lug, 8-lug)
Measure from the center of one lug hole directly across to the center of the hole opposite it.
Common configurations: 4 on 4", 6 on 5.5", 8 on 6.5"
2b. For odd lug counts (5-lug)
Measure from the center of one lug hole to the outer edge of the hole directly across (not center-to-center since there's no directly opposite hole).
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer. Today we're gonna take a look at this Dexter 12 and a quarter inch Hub and Rotor Assembly with the eight on six and a half inch bolt pattern, a nine and 16ths inch diameter wheel studs for a 7,000 pound axle. Now when you're hauling serious weight, you need braking parts that are gonna hold up under pressure. This Dexter 12 and a quarter inch diameter hub and rotor assembly is built for 7,000 pound axles. So it gives you the strength and reliability needed for heavy duty towing.
It is a cast iron construction, provides solid durability, while precision machining minimize any runout warping for a lot smoother stops every time. This will include everything shown here on the table. It includes the hub and rotor assembly. Now the bearing races are already pre-installed. You can see the bearing race for the outer bearing is pre-installed.
We flip it around on the back, you can see the bearing race for the inner bearing is pre-installed. So all you have to worry about is installing the pieces. The inner bearing is included, goes right in there on the bearing race. Also comes with the grease seal. This will go once you get your bearing in there.
Then you put your grease seal into place, tap it in there. Also comes with the outer bearing, which is this one right here, it goes in place. And same way, once it's installed, then it comes with the grease gap that you tap in place to cover it up. And it also includes eight of the nine and 16ths by 18 size lug nuts for installing your wheel assembly to this. Now the part numbers for these parts are all listed on the product page.
Now braking is gonna generate a lot of heat, especially when you're loaded down or driving on long grades. This is a vented rotor right here. This design in the hub assembly will regulate temperature, prevents overheating, heat related damage. Means a lot cooler operation, longer pad life, and consistent braking performance, mile after mile. Moisture and road grime can quickly corrode bare metal parts. This one, if you look, has a nice e-coat finish all over the whole part. This will provide a nice protective barrier against corrosion and wear. Keeps the service smooth and strong through all kinds of weather. It is a nice durable coating that'll help extend service life, keeps the braking surface in top shape longer. Few specs on this, the axle capacity, again, this fits is 7,000 pound axles. The wheel size that you can use on this is from 16 inch diameter, all the way up to 17 inch diameter. Bolt pattern, again, eight on six and a half inch. Wheel bolt diameter, nine and 16ths of an inch. And the total rotor diameter outside to outside, 12 and a quarter inches. But that's gonna do it for a look at this Dexter 12 and a quarter inch Hub and Rotor Assembly with the eight on six and a half inch bolt pattern and the nine 16ths inch wheel studs.
Customer Satisfaction Score:
85% were satisfied with this product
15% of customers were not satisfied
Ratings & Reviews
The product itself is of good quality, however in shipping the bearings and seal were all damaged with the rotor having the weight it does I don’t know how to keep them from getting damaged in shipping other than box them or wrap them very well. It was not a big deal for me because I use a specific brand of bearings and seals but it may have delayed someone expecting to use them.
The part worked great so glad it was in stock, etrailer customer service is second to non, fast and very helpful. I recommend etrailer.
Etrailer went above and beyond to get these to me in time.
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Lemmonaid
4/11/2025
Still running strong.