Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Looking at the pictures from NAPA and Classic, and doing a search on NAPA, I would venture to say that the NAPA WS6040 is the correct one.
You want the switch for Non Tilt and Non Intermittent wipers.
Classic Parts Wiper Switch