Will this radiator bolt up to my existing water pump and hoses?

Yes. The inlet and outlet ports are positioned to match factory routing — no adapter hoses or fittings needed. Your existing connections attach directly.

Do I need a new thermostat or water pump when I install this?

Those are separate maintenance items. Inspect your thermostat and pump before installation — if either is worn, replace it while you have the system open. This radiator works with any OEM-spec thermostat.

Can I reuse my original coolant, or should I flush the system?

Flush the system before filling. Old coolant degrades over time and can reduce cooling efficiency. Use a fresh 50/50 mix of coolant and distilled water appropriate for your engine type.