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Sierra Mercruiser Riser 18-1975-1 Quantity in Basket: None Code: 6801 Price: $229.95 Shipping Weight: 20.00 pounds Quantity: Fits late model Mercruiser 4 cyl. engines. Use with manifold: 18-1955-1, 18-1954-1, 18-1956-1. Replaces: Mercruiser 12076A1, 12076A2, 95864A2.Marine Power 6000-33A. Related Item(s) Code Name Price Availability 6817 Sierra Elbow Gasket 18-2833 $3.99 6822 Sierra Exhaust Boot 18-2748 $42.95