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

Yes. Old coolant can contain sediment that clogs a new core quickly. Flush the system thoroughly, then refill with fresh coolant to your vehicle's spec.

Are the stock hose connections the same as the original radiator?

This radiator uses OEM connection points, so your existing hoses should fit. Double-check hose condition before installation — if they're brittle or leaking, replace them now.

Will this work with my factory fan setup?

Yes. This radiator mounts at factory points and is designed for the stock fan shroud and electric/mechanical fan configuration on these trucks and SUVs.