Hi, This Gasket is New old Stock,just bought a whole Car parts store with a lots of vintage stuff so visit my other auction for the next 2 month,there will be very good deal and probably RARE FINDS too. If you need other gasket,visit my store as I have few thousand gasket for sale. Sold as is as i can not test nothing but they are NEW What you see is what you get,please check the pics IF YOU BUY MORE THAN 1 ITEMS,please request shipping price as I will combine shipping to make you a better deal on shipping. Thanks for looking.Denis Fits Vehicles Pontiac Optima (1988-1990) Pontiac Sunbird (1987-1994) Pontiac LeMans (1989-1990) Oldsmobile Firenza (1987-1988) Buick Skyhawk (1987-1988) 87-90 Pontiac Sunbird Buick Corteco 21786CS Engine Cylinder Head Gasket Set,iSeal,21786CS Part Interchanges 7420839 Detroit Gasket 21786 VG 7136 Muskegon RH93906 Victor Reinz HS5778 Corteco 21786CS McCord VG7136 MAHLE HS5778 MMP 758881