Do I need new coolant hoses when I swap this in?

Not necessarily. If your existing hoses are in good condition and mate cleanly to the factory ports, reuse them. If they're cracked, brittle, or don't seat flush, replace them before filling—old hose material can contaminate fresh coolant.

Will this work with my current coolant, or do I need to flush the system first?

Flush the old coolant completely before installation. Fresh coolant ensures the radiator performs at full capacity and prevents sediment buildup that can clog the new core.

What if the radiator leaks after installation—what's the return window?

Contact ModSupply support with your order number and photos of the damage. Defective units are handled on a case-by-case basis. Keep your receipt and original packaging for the fastest resolution.