Mercury - Crankcase head - 8228881 MerCruiser-5-0L-5-7L-MPI-Alpha-2009 I’ve swapped plenty of them

I’ve swapped plenty of them on Yamahas where the issue wasn’t obvious until you looked at temperature behavior over time

but it makes the engine feel more “dialed in

With flame arrestor screens built to marine certification standards

and components are engineered to tighter tolerances and built for long-term marine durability

Bracket-eng cover

Mercury - Crankcase head - 8228881 MerCruiser-5-0L-5-7L-MPI-Alpha-2009 I’ve swapped plenty of themThis product has been superseded by: 900 8M0091645 Crankcase headWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or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.