Replacing the heater core is an involved process. WHat I recommend doing is purchasing a repair manual that contains the process step by step. I believe they offer one on line at this site that is cheaper than getting one from a store.
As far as parts, you will need the heater core, I recommend replacing the heater core hoses, clamps, and coolant.
Let me know if you run into trouble and need some advice.
Saturday, January 2nd, 2010 AT 1:37 AM