Do I need to replace both front hubs at the same time?

Not required, but matching pair replacement helps maintain even brake balance and suspension geometry. If only one side is failed, replacing just that unit works fine.

What bolts or fasteners are needed to mount this?

This assembly uses factory mounting points. You'll need the hardware that came off your original hub — bolts, washers, and any retaining clips. Check your service manual for torque specs and bolt sizes before removal.

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

Yes. The new bearing unit bolts directly into the existing brake assembly. Clean the rotor mounting surface and inspect for damage before reassembly. No modification to brake hardware needed.