Yamaha Oil Tank Cap Assembly - 6E5-21770-03-00 MerCruiser-4-5L-MPI-Bravo-1997 oil and stains

oil and stains

This particular cover is for the C75 to 90 Yamaha outboards

It’s the same hardware Mercury technicians use when servicing drives in the field

weak water pump

and optional extension cable allows the radio and mic to be mounted separately

Yamaha Oil Tank Cap Assembly - 6E5-21770-03-00 MerCruiser-4-5L-MPI-Bravo-1997 oil and stainsYamaha Oil Tank Cap Assembly Oil System 6E5 21770 03 00 Overview This is one of those parts you dont think about until it starts causing a mess or letting air into the system. A good oil tank cap needs to seal tight and keep everything where it belongs, especially on 2 stroke setups where oil flow matters. Ive seen cracked or loose caps lead to leaks and even affect how oil feeds into the motor. Swapping it out is a simple fix that keeps your oil