Specification:Item Type: Water Pump ImpellerMaterial: Nylon + RubberOEM: 369-65021-1, Replacement for 47-16154-3Other OE: Replacement for Sierra 18-3098Quantity of Impeller Blades: 6Height: Approx. 14.30mm / 0.56inExternal Impeller Overall Diameter: Approx. 33.58mm / 1.32inInternal Shaft Insert Diameter: Approx. 10.25mm / 0.4inApplications:Replacement for Mariner 4-STROKE Carb:2HP, 0R131842 and Up2.5Hp, 0R131842 and Up3.5HP, 0R131842 and UpReplacement for Mariner 2-STROKE:4HP, 0T894439 and Up, 0P401000 and Up5HP, 0T894439 and Up, 0P401000 and Up4HP, 0G710613 THRU 0T894438, 0P017000 THRU 0P4009995HP, 0P017000 THRU 0P400999, 0G710613 THRU 0T894438Replacement for Mariner 2HP, 0T884302 THRU 0T894576Replacement for Mariner 3.3HP, 2.5HP, 0G710613 THRU 0T894576Replacement for Mariner 3.3HP, 2.5HP, 0P017000 THRU 0P400999Replacement for Mariner 6HP, 5HP, 4HP, 4-STROKE, 0R000001 THRU 0R067089, 0P073456 THRU 0P400999Replacement for Mariner 2HP, 2.5HP, 3.3HP, 0T894577 UpReplacement for Mariner 2.5HP, 3.3HP, 0P401000 UpReplacement for Mariner 6 5 4 (4-STROKE), 0R067090 Up, 0P401000 UpHow to Use:Directly replacePackage List:1 xWater Pump ImpellerNote:1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!