Do I need to flush the cooling system before installing this radiator?

Yes. Old coolant can contain sediment and corrosion particles that will compromise the new radiator's performance. Flush the system, rinse thoroughly with distilled water, and refill with fresh coolant before buttoning everything up.

Will this radiator work with my existing hoses and clamps?

Factory connections are preserved on this OEM replacement, so your existing hoses should fit. Inspect them for cracks or brittleness while you have the radiator out—if they're aging, now's the time to swap them.

What's the return window if there's a problem?

Standard ModSupply return process applies. Inspect the radiator before installation; once coolant runs through it, coverage changes. Keep your receipt and original packaging.