https://www.supplyhouse.com/Carrier-LH33WZ512-Ignition-Module-LH33WZ512
LH33WZ512 Is the current number for the LH33WZ512A. It can be found here on our site : http://www.pexsupply.com/Carrier-LH33WZ512-Ignition-Module-LH33WZ512
Yes, LH33WZ513 is the current part number for LH33WZ513A.