It was used for aftermarket Ref:Mercury Water pump impeller 47-16154-3Tohatsu Water Pump Impeller 369-65021-1Sierra:18-3098CEF 500377
No. Blades: 6Depth /Height/ Width: 14.30mmOuter/External impeller diameter: 33.58mmInternal shaft insert/hub diameter: 10.25mmNet Weight:6g
Mercury Mariner F4/F5/F6 1cylMercury Mariner 1cyl 4&5HP made in Japan (not Mariner Yamaha style)
Tohatsu 2-Stroke - M3.5B2, M4C, M5B & M5BS4-Stroke - MFS2A, MFS2B, MFS2.5A, MFS2.5B, MFS3.5A, MFS3.5B, MFS4A2 (Serial 12183 and up), MFS4B, MFS4C, MFS5A2 (Serial 19757 and up), MFS5B, MFS5C, MFS6A2 (Serial 01751 and up), MFS6B & MFS6CMFS4/5/6 ABC M4/5 AB M3.5A/A2