Do I need new hoses and clamps to install this?

Your existing hoses will work if they're in good condition, but inspect them closely since the original ones are likely original equipment by now. Fresh coolant lines are cheap insurance against leaks down the road.

Will this work with my current cooling system, or do I need a new thermostat?

This radiator pairs with your existing thermostat and water pump — no changes needed there. Just flush your system, drain the old coolant, and refill with fresh fluid when you swap it in.

What's the return window if it doesn't fit or has issues?

Contact ModSupply customer service directly with photos and details of the issue. They'll walk you through troubleshooting or arrange a return if there's a defect.