Aluminum waterpump #3975928
 

I have an aluminum waterpump and I was wondering if anyone would know if it is a ZL1 waterpump. The part number is:3975928 and under that there is another number "5421". I have been told it is for a ZL1, I want to list it on Ebay but I don't know what it's for or what it is worth. Let me know, thanks.