When you’re towing with a 7,000-lb axle setup, you need a hub-and-rotor that stays true under pressure. This 12-1/4" Dexter assembly is machined to minimize runout and warping, so it runs smooth and delivers steady braking. The cast iron construction adds the muscle to take on heavy loads without flexing or cracking, giving you confidence mile after mile.
Brake heat can creep up fast when you’re loaded down or rolling through stop-and-go traffic. The vented rotor channels air through its core to shed heat evenly and prevent fade or damage. That means consistent stopping power and longer rotor life, even when you’re working your brakes hard.
Moisture, grime, and road salt can eat through bare metal fast. The E-coat finish on this hub-and-rotor adds a tough barrier that protects against corrosion and wear. It’s made to hold up in wet or dirty conditions so the surface stays clean and the braking stays smooth over time.
No need to hunt down extra parts before you can install it. This unit includes the inner bearing (25580), outer bearing (14125A), races, oil seal (10-63), and a threaded oil cap. It’s built for oil bath lubrication, keeping bearings running cool and well protected for long service life.
Designed for common wheel sizes—16", 16-1/2", and 17"—this Dexter hub-and-rotor uses an 8 on 6-1/2" bolt pattern with 1/2" wheel studs. That standard fit makes it easy to pair with typical 7K axle hardware while maintaining tight alignment for smooth rotation and balanced braking.
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.
Speaker 1: Today, we're taking a look at the Dexter 12-and-one-quarter-inch Oil Bath hub and rotor assembly. Now, this hub and rotor assembly works with 7,000 pound axles with disc brakes. It features machine processing, which all that's internally. That's gonna minimize run-out and warping. And what that means is that the contaminates can't get in-between the rotor and hub and cause damage. This is a cast-iron construction, which provides a lot of strength and durability.You'll notice that it has the vented design, which regulates temperature to prevent overheating.
You can see everything that it comes with laid out here on the table, so the wheel studs are already pressed in. The bearings, you have our inner bearing and your outer bearing. Races are already pre-installed. You get oil seal and the oil cap, so all that's included, as well as the lug nuts there. Now, there's an E-coat finish over the unit which protects it against rust and corrosion and wear.The product is made in the USA.
Again, it is designed to work with 7,000 pound axles with disc brakes. That'll fit wheel sizes of 16 inches, 16-and-a-half inches, and 17 inches. The bolt pattern on the unit is 8 on 6-and-a-half and the wheel bolt diameter is a half-inch. The rotor diameter, so outer edge to outer edge, that's 12-and-one-quarter inches.This right here, is your inner bearing. So the race is already installed.
It goes on the inner part of the unit here. Now, grease is not included, or the oil, so that will need to be provided separately but it does come with all these other components, so inner bearing, outer bearing, oil seal presses in back there, and then you got the studs and the lug nuts, and then you have the oil cap, which threads on right here. That's gonna do it for today's look at the Dexter 12-and-one-quarter-inch Oil Bath hub and rotor assembly.
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