Mercruiser Open Riser Gasket Sierra 18-0721

Sierra 18-0721 Open Riser Gasket

Sierra 18-0721 Mercruiser Open Riser Gasket

Sierra high-quality engine parts are designed to meet OEM specifications. Sierra Mercruiser dry joint open riser gasket.

• For standard cooling – full flow gasket
• Fits GM V-6 & V-8 engines with dry joint exhaust manifold (2002 & newer)

Use With:

• 18-1845 Riser
• 18-1843 Manifold

Interchangeable with:

• Mercruiser Stern Drive
  • 27-864547A02
  • 27-864547A1