Sierra Exhaust Water Shutter 18-2727, Replaces Mercury Marine 60930, White

The Sierra 18-2727 is a round exhaust water shutter used in marine exhaust systems to control water flow through the exhaust path. It is a direct replacement for Mercury Marine part number 60930, letting boat owners restore proper exhaust water shutter function without sourcing a full Mercury Marine assembly. The shutter is finished in white and measures 0.25 inches thick, matching the dimensions of the original component it replaces. Each unit is sold individually and is built to the fit and function of the OEM part it is designed to replace.

This shutter is a straightforward maintenance-and-repair item for owners servicing the exhaust water system on applicable Mercury Marine-equipped boats. Because it is a direct OEM replacement for Mercury Marine 60930, installation follows the same procedure as removing and replacing the original shutter, with no modification required.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-2727
• Product Type: Exhaust Water Shutter
• Color: White
• Shape: Round
• Item Thickness: 0.25 inches
• Weight: 0.14 pounds
• Unit Count: 1
• UPC: 808282111663

Fitment

Direct OEM replacement for Mercury Marine part number 60930. Consult your engine owner's manual to confirm the original part number on your application before ordering.

Replaces (OEM)

• 60930

Frequently Asked Questions

What does the Sierra 18-2727 exhaust water shutter replace? It is a direct OEM replacement for Mercury Marine part number 60930.

What color is the 18-2727 water shutter? It is white, matching the original Mercury Marine 60930 shutter it replaces.

How thick is the Sierra 18-2727 shutter? The shutter measures 0.25 inches thick.

What shape is the Sierra 18-2727 exhaust water shutter? It is round, the standard shape for this exhaust water shutter application.

How much does the 18-2727 shutter weigh? The Sierra 18-2727 weighs 0.14 pounds.

How many shutters come in a package? The 18-2727 is sold as a single unit, with a unit count of 1.

Will the 18-2727 fit any boat with an exhaust water shutter? Confirm compatibility by checking whether your engine currently uses a Mercury Marine 60930 shutter; the Sierra 18-2727 is built as a direct replacement for that specific OEM part.

Is the Sierra 18-2727 a genuine Mercury Marine part or aftermarket? The 18-2727 is a Sierra-branded aftermarket part manufactured as a direct replacement for Mercury Marine 60930, not a Mercury Marine-branded original part.

Does installing the 18-2727 require any modification? No, the Sierra 18-2727 is designed as a direct fit replacement for Mercury Marine 60930, so no modification is needed during installation.

What is included when I order part 18-2727? One Sierra 18-2727 exhaust water shutter is included per order.