Genuine GM OEM / ACDelco Turbocharger Gasket GM Part Number: 55585155 Brand new, genuine GM OEM / ACDelco turbocharger gasket. Never installed or used. Condition: New / Unused Brand: ACDelco GM Original Equipment Part Number: 55585155 This is New Old Stock (NOS). Please verify the part number 55585155 and compatibility with your vehicle before purchasing. Original packaging may show minor signs of age or storage. You will receive exactly the item shown in the listing photos.