Skipper's Locker

Sierra 18-0670 Powerhead Base Gasket

Brand:
Sierra
Part no:
18-0670

Where to buy

Specifications

Position
Powerhead base

This is the Sierra 18-0670 gasket for the base of the powerhead. It is intended for Mercury and Mariner outboard engines. No thickness, material or model list is given for it, so match the part number against your outboard's parts diagram and check Sierra's catalog for the applications before fitting.

Our take

The 18-0670 seals the powerhead base, and it is stated only for Mercury and Mariner outboards. With no model list given, match the part number to your outboard's parts diagram rather than going by brand alone.

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Sources