Do I need to drain the cooling system to swap this in?

Yes — remove coolant from the system before disconnecting the old tank and hose lines. Transfer any hose clamps and fittings from the original tank to the replacement if they're in good condition.

Will this tank work with my current hoses and clamps?

Factory hose diameters and port sizes match the original tank. Inspect existing clamps and hose ends for wear before reinstalling — replace if cracked or corroded.

Does this come with a cap or overflow line?

Tank assembly only — cap and overflow hose are not included. Reuse your existing cap and route overflow lines exactly as the original tank was configured.