Do I need a new thermostat or hoses when I install this?

The radiator itself is a direct swap. Check your hoses for age and condition — if they're original or cracked, replace them now rather than during a second teardown. Thermostat is independent but worth inspecting while you have the system open.

Will I need to refill the coolant system after installation?

Yes. Drain the old system completely, flush if necessary, then refill with the correct coolant type specified in your manual. Bleed air from the system according to your vehicle's procedure to avoid hot spots.

What's the return process if this doesn't fit?

Contact support with your vehicle details and any photos before opening or installing the radiator. Unopened returns are processed; once installed, fitment issues fall outside standard return windows — verify compatibility first.