Sierra 18-0721 Open Dry Joint Exhaust Riser Gasket MerCruiser 27-864549A02


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Sierra 18-0721 marine exhaust gasket for MerCruiser dry joint risers and manifolds. This is the “open” style, meaning both water passages are open. Replaces Mercury 27-864547A02. Each purchase is for one gasket. View other dry joint parts for the manifolds, risers, and other gasket styles.

About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.

Product Details

Shipping Weight0.4 lbs
FitsMerCruiser Dry Joint
Shipping Dimensions9" x 6" x 2"
TypeDry Joint Open Gasket
Country of ManufactureTaiwan
WarrantyLimited Lifetime
Part Number18-0721
Item Weight0.2 lbs
Manufacturer Part Number18-0721