Do I need to buy a wheel bearing removal tool to install this?

No. Since this comes as a complete pre-assembled unit, you're unbolting the old hub and bolting this one in place. Basic socket set and a breaker bar are all you need—no hydraulic press or bearing puller required.

Will my ABS and traction control work right away after installation?

Yes. The wheel speed sensor ring is already pressed onto the hub. Just bolt it in, reconnect the sensor, and you're done—no recalibration needed.

Can I reuse the rotor and brake caliper from my old hub?

Rotors bolt to the new hub the same way they bolted to the old one. Calipers stay on the knuckle and don't touch the hub assembly. Clean the rotor surface before reinstalling to prevent brake noise.