Mercury - Spanish mc #11 - 90-17431J4 Discs & Pads - Polishing - Sanding - Grinding or overheating warnings are common

or overheating warnings are common indicators the impeller or internal parts may be worn

Thermostats are one of those parts you don’t think about until the engine starts running too hot or never quite warms up right

The tool’s stepped throat matches Mercury’s 5- and 6-rib pulleys

Diagnose the idle system before replacing the part

Mercury - Spanish mc #11 - 90-17431J4 Discs & Pads - Polishing - Sanding - Grinding or overheating warnings are commonSpanish mc #11 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.