Johnson Pump MC97 10615K Sherwood Impeller KitThe Johnson Pump MC97 Impeller Kit is a direct replacement for Sherwood 10615K and Jabsco 18948-0001. Constructed of MC97/EPDM and Neoprene for cooling traits along with Nitrile for oil resistance. This is a full kit including an Impeller, O-Ring, Lubricant, 2 3-Hole Gaskets, 1 4-Hole Gaskets, 2 6-Hole Gaskets, 2 8-Hole Gaskets.Features:Meets engine OM requirementsAll in one kitNitrile for oil resistanceSelf-Priming CapabilityMC97/Neoprene for coolingSpecifications:Material: MC97/EPDMOuter Diameter: 2.57″Width: 1.63″Kit IncludesImpellerO-RingImpeller LubricantGasket x 7Fits:Crusader97179Chrysler36757634142878Cummins4BOnanMDL6Chris Craft454Pleasure Craft454