Sierra 18-4334 Powerhead Gasket Set

Sierra 18-4334 Mercury Powerhead Gasket Set

Sierra high-quality marine engine parts are designed to meet OEM specifications. 

• For 15HP, 18HP, 20HP, & 25HP outboards

Interchangeable with:

• GLM
• 39335
• Mercury Marine
• 27-41499A87
• 27-41499A88
• 27-41499A84

Set Includes:

• (1) 18-2717 Exhaust Manifold Gasket
• (1) 18-2716 Exhaust Cover Gasket
• (1) 18-2714 Exhaust Cover Gasket
• (1) 18-2710 Reed Block Gasket
• (1) 18-2712 Adapter Plate Gasket
• (1) 18-0336 Adapter Plate Gasket
• (1) 18-2713 Drive Shaft Housing Gasket
• (1) 18-2562 Impeller Gasket
• (1) 18-0633 Carburetor Mounting Gasket
• (1) 18-2736 Cylinder Head Gasket
• (1) 18-7421 O-Ring
• (2) 18-7163 O-Ring
• (1) 18-0514 Water Tube Rubber Seal
• (1) 18-7100 O-Ring
• (1) 18-7419 O-Ring
• (1) 18-7956 O-Ring (pkg of 5)
• (1) 18-0323 Thermostat Gasket
• (2) 18-7115 O-Ring
• (1) 18-7135 O-Ring