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Mercruiser 3" & 6" Riser Kits

Direct replacement

Mercruiser 3" & 6" Riser Kits
Part Number Description
MC-20-61811A4 Manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.
MC-20-61851A2 Manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.
MC-20-61851A3 Manifold to riser 3" spacer (single block). Includes all mounting hardware, gaskets and drain plug.
MC-20-93320A3 Manifold to riser 3" spacer blocks (pair) with fastener and gasket package.
MC-20-93322A3 Manifold to riser 6" spacer blocks (pair) with fastener and gasket package.
MC-20-61811P Mounting package for MC-20-61811A4 spacer block kit.
MC-20-61851A2P Mounting package for MC-20-61851A2 spacer block kit.
MC-20-61811A3P Mounting package for MC-20-61811A3 spacer block kit.
MC-20-93320A3P Mounting package for MC-20-93320A3 spacer block kit.
MC-20-93322A3P Mounting package for MC-20-93322A3 spacer block kit.
Note
Each spacer block kit includes the spacer block(s) and the corresponding package to assemble.