Waterpump: P/N 125-1910 or 125-5670 (gasket should be included)
Waterpump Belt: P/N 267K3 or JK3-274 or F5RZ-8620-A (might as well do it, especially if you're over 60K miles)
Coolant Flush Kit and Dex-Cool coolant: Need enough for 10 quarts of a 50/50 coolant/water mix (the flush is another "might as well", especially if you haven't done this one in a while, or ever)
Waterpump Install: Contour.org HOW TO'S and/or a Haynes Repair Manual (P/N 36006)