I have attached a PDF showing how we look up parts for a Carrier gas furnace. The product number I used is 383KAV036090ABJA. The 1st page is a significance chart showing what all the information in the product number means. It is critical we have the entire product number to identify parts required for repairs. We are able to go 1 step deeper than this PDF and identify parts that have been superceded to a new part number not listed on this sheet.
Note: Many times there are added notes that are not published in this PDF. It is always the best practice to call or email us with the product number to identify the correct parts for your repair.
Shortys HVAC Supplies 877-821-8770