[Too Many Projects]

I have 9 of these left from owning a 2000 Silverado 5.3. They were discontinued while I owned the truck and I bought 2 cases. Sold the truck with these left, thinking they would work on my 2011, but they don't.
I've tried to research how many years and models of GM engines these fit and came up with very little. Possibly from 1999 to 2006 5.3 engines and some late 90's quad 4's.


$5 each or the box of 9 for $40, plus shipping.