Will this bolt straight into my van without modifications?

Yes. This is an OEM specification radiator, so mounting points and connections align with factory locations. Install using your original hardware and fastening points.

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

Absolutely. Drain and flush the system completely before swapping in the new radiator. Old coolant can contain debris that clogs a fresh core.

What happens if it fails within the first few months?

Contact ModSupply customer service with photos and proof of purchase. Return and warranty processes are handled on a case-by-case basis depending on the failure mode.