3YM30R 29-30 4-Stroke 128270-12540
and 20 HP F20 (2006–2021) outboard motors
Install the new key and lightly lubricate the impeller and housing with marine grease
27-8503181 Mercury Marine 225 HP 6 CYL (3
including Mercury 853720T25
Head and Cover Gasket Set – Fits Johnson/Evinrude 18-35 HP (Replaces 765012, 327674) Generic 3YM30R 29-30 4-Stroke 128270-12540Product Details This Head and Cover Gasket Set Fits Johnson Evinrude 18 35 HP Outboards (Replaces 765012, 327674) is engineered for a precise fit on Johnson Evinrude 18, 20, 25, 28, 30, and 35 HP, 2 Stroke outboard engines from model years 1979 through 2001. It provides a direct interchange for Johnson Evinrude OEM part numbers 765012, 327674, 324324, and 329419, as well as aftermarket equivalents like Sierra 18 3899 and 18 3803. Installs as a direct