Powerhead Gasket Set 

Interchanges/Replaces

GLM

• 39350

Johnson/Evinrude Outboard

• 390078
• 439084

Mallory

• 9-64102

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-0118	GLM 33740 Johnson/Evinrude Outboard 325092 Mallory 9-60427	3	Carburetor Gasket		N/A
18-0951	GLM 34860 Johnson/Evinrude Outboard 317305	1	Carburetor to Manifold Gasket		N/A
18-0975	GLM 34420 Johnson/Evinrude Outboard 333008 Mallory 9-60419	1	Carburetor to Silencer Gasket		N/A
18-0989	GLM 34430 Johnson/Evinrude Outboard 321794 Mallory 9-60418	1	Air Silencer Gasket		N/A
18-2543	GLM 34310 Johnson/Evinrude Outboard 318609 766871	1	Water Jacket Gasket		N/A
18-2548	GLM 34630 Johnson/Evinrude Outboard 317226 332108	1	Thermostat Cover Gasket		N/A
18-2865	GLM 33410 34550 Johnson/Evinrude Outboard 313763 Mallory 9-60424	1	Powerhead Base Gasket		N/A
18-2913	GLM 34610 Johnson/Evinrude Outboard 319097 331916 Mallory 9-60430	2	Exhaust Cover Gasket		N/A
18-2938	GLM 34620 Johnson/Evinrude Outboard 317227 331917 Mallory 9-60431	1	Exhaust Cover Gasket		N/A
18-2960	GLM 33400 Johnson/Evinrude Outboard 313413 Mallory 9-63827	1	Head Gasket		N/A
18-1212	GLM 34530 Johnson/Evinrude Outboard 326926 Mallory 9-60439	1	Intake Manifold Gasket		N/A
NSS	Johnson/Evinrude Outboard 321796 319283 331016	1	Gasket, Adapter to plate	No Image	N/A