Feature:1. Part Number: According to the original factory specifications, replacing part number is 47161541/47161541, replace OEM is 345650210/345650210M/345650210/345650210M/188923.2. Perfect Replacement: Water pump impeller, replacement for Nissan Tohatsu Outboard 25/30/35/40 HP, replacement for Mariner Outboard 25/30 HP.3. High Compatibility: Compatible with the outboards boat motor replacement for Sierra 188923, replacement for Mallory Marine 945400, makes repair and maintenance of water pumps easy.4. Rigorous Testing: The flexible impeller undergoes strict quality procedures to ensure reliable, efficient and longlasting performance. You can replace the impeller in advance according to the load of the engine.5. Easy Installation: Easy to install and use. Direct replacement for the old or damaged impeller, offers better performance for engine cooling system.Specification:Item Type: Water Pump ImpellerColor: BlackMaterial: Neoprene and Plastic HubNumber of Blades: 6Internal / Insert / Hub / Shaft Size: Approx. 0.681in/ 1.73cmOverall / Outer / External Diameter: Approx. 1.715in/ 4.36cmDepth / Height / Width/ Thickness: Approx. 0.799in/ 2.03cmPart Number: 47-161541, 47-16154-1Replace OEM: 345-65021-0/345-65021-0M/345650210/345650210M/18-8923Fitment:Replacement for Sierra Marine Outboards P/N: 18-8923Replacement for Mallory Marine 9-45400Replacement for Mariner 25HP 0N018456 THRU 0N055504 - Belgium - Cat.# 90-803821 - 2 CYL Replacement for Mariner 25HP 0N055505 & Up - Belgium - Cat.# 90-803821006 - 2 CYL Jet Replacement for Mariner 25HP 0N088578 & Up - Belgium - Cat.# 90-803821006 - JET 2 CYLReplacement for Mariner 25HP 0R106999 & Up - USA - Cat.# 90-898126006 - EFI 3CYL Replacement for Mariner 25HP 0R165086 & Up - USA - Cat.# 90-898126006 - Jet EFI 3CYL Jet Replacement for Mariner 30HP 0G575500 AND UP BEL - 2 CYL International Replacement for Mariner 30HP 0N001875 THRU 0N055504 - Belgium - Cat.# 90-803821 - 2 CYLReplacement for Mariner 30HP 0N055505 & Up - Belgium - Cat.# 90-803821006 - 2 CYL Jet Replacement for Mariner 30HP 0R106999 & Up - USA - Cat.# 90-898126006 - EFI 3CYLReplacement for Nissan Tohatsu 345-65021-0/345-65021-0M/345650210/345650210M.Replacement for Nissan Tohatsu 2-stroke outboard motors: M25, M30, M35, M40Replacement for Nissan Tohatsu 4-stroke outboard motors: MFS25, MFS30Replacement for Nissan Tohatsu 2-stroke outboard motors: NS25, NS30, NS35, NS40Replacement for Nissan Tohatsu 4-stroke outboard motors: NSF25, NSF30.Package List:1 xWater Pump ImpellerNote:To ensure that this impeller is suitable for your marine motor, it is important to check your outboard model or S/N before purchasing.