Engine flushing kit 16841Q02 is an essential maintenance tool for protecting internal engine passages from corrosion and invasive species. This kit easily screws into the flushing port of select small Mercury and Mariner outboards, allowing you to flush the cooling system with fresh water. Note: This flushing kit is for use only when the engine is not running to prevent water pump damage.
- Fits select Mercury/Mariner 2.5-9.9hp 2-stroke and 4-stroke outboards
- Prevents corrosion in internal cooling passages
- Used to flush out salt, sand, and invasive species deposits
- Simple screw-in design for the dedicated engine flushing port
- Use only while the engine is in the "off" position
