Products MercuryGasket (Kit) / Seal Kit / Diaphragm /Plate Back Timing Chain Gasket set 27-42457A1 Item number: 27-42457A1 Similar numbers: MALLORY: 9-61040 Fit on: Mercruiser 175/ 185 / 205 HP V6 Inboard You May Also Be Interested In Face Plate 817276-1 / 8172761 Cylinder Head Gasket 27-13709T / 13709T Piston KIT 09-696 Piston Kit 09-710-03