Mercury - Wrench - 91-888734 Marine Stereos The water pump is responsible

The water pump is responsible for circulating water through the engine to maintain safe operating temperatures

Running the right oil in a marine engine isn’t just about meeting specs—it’s about how your engine feels on the water

This product has been superseded by: YF1-21216-70-60

Yes—its corrosion inhibitors are designed to handle both environments

Mercury - Wrench - 91-888734 Marine Stereos The water pump is responsibleThis product has been superseded by: 91 889277002 WrenchWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other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.