Do I need a bearing press to install this?

No. These come as complete pressed assemblies — bearings are already seated in the hub. You bolt the whole unit to your knuckle or axle housing and you're done.

What fasteners do I need to bolt this on?

The assembly uses factory mounting points on your knuckle or housing, but hardware is not included in this kit. Use the original bolts from your vehicle or source replacements to match your factory specs.

Can I reuse the wheel speed sensor from the old hub?

Depends on your model year and whether the new hub has a sensor mounting surface. If you're upgrading ABS sensors, they may not be compatible — verify with your vehicle's wiring setup before ordering.