Mercury/Quicksilver OEM Impeller 47-89983T Replacement impeller for your Mercury or Mariner outboard Produced to Meet Mercury marine original equipment Manufacturer specifications to best protect your Mercury or Mariner outboard Impeller elastomers provide improved flexibility across Broad temperature ranges throughout the boating Season Designed for durability to provide higher flow rates and cooling flow to protect your engine The center insert is bonded to the vanes to resist tearing loose and losing water flow