Sierra water shutter flapper 807166A3 18-2732

Sierra Water Shutter-Exhaust MerCruiser #60930 18-2727

OEM Quicksilver/Mercury Water Shutter Assembly 807166A 2 Exhaust water shutter kit 807166A2 is for use on MerCruiser stern drive engine Y-pipes with 2.98 inch diameter at the cross pin. See your...

OEM Quicksilver/Mercury Exhaust Flapper/Shutter 807166A1 Stern drive exhaust water shutter 807166A1 is for use on MerCruiser stern drives to keep following seas/water from washing back into the...

Sierra_47 - 18-4456 EXHAUST FLAPPER 3 INCH EXHAUST PROTECTOR VALVE (Sierra) Includes: • Stainless steel hose clamp • Weather resistant rubber flapper valve Replaces: MerCruiser...

Sierra_47 - 18-4457 EXHAUST FLAPPER 4 INCH EXHAUST PROTECTOR VALVE (Sierra) Includes: • Stainless steel hose clamp.  • Weather resistant rubber flapper valve Replaces: MerCruiser...