Water pump impeller 161542 is for select 40-50hp Mercury and Mariner 2-stroke outboards. Designed for durability to provide higher flow rates and cooling flow to protect your engine. Impeller only. Additional gaskets, seals or pump kit parts sold separately. Change seals and gaskets when servicing or replacing water pump impellers. See your owner's manual or service manual for more information.
For select 40-50hp Mercury and Mariner 2-stroke outboards
Designed for durability to provide higher flow rates and cooling flow to protect your engine
Impeller only
Additional gaskets, seals or pump kit parts sold separately
Replace seals and gaskets when replacing water pump impellers to ensure proper cooling for your engine