I replaced my heater control valve on a 2001. Doubtless they are the same; made by ACME Air conditioning, in Kansas City. Their website is acmeair.com, and if you go to replacement parts you'll find the heater control valve right at the top of the the catalog.
But before you do that, let me describe the symptoms I had, which caused me to do exactly what you intend! My valve didn't shut off, so the vent delivered hot air in the summer. When I had ordered the replacement and removed the old valve, I discovered that the screws holding the servo (it's electrical) to the valve body had backed off, allowing the servo-to-valve connection to partially separate. What was really needed was longer screws (it has to do with the bracket that WRV used), not a new valve.
So -- I have an old valve and servo someplace that are still serviceable. If you'd rather avoid paying about $125 for part plus shipping, let me know --
Franklin Halasz 505-821-2814
Franklin & Dessa
2001 Alpine 34 FDDS
Tow a 2014 CR-V