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Sierra Mercruiser Elbow 18-1971 Quantity in Basket: None Code: 6798 Price: $203.95 Shipping Weight: 23.00 pounds Quantity: Fits most early Mercruiser 140 HP (4 cyl) applications. Use with manifolds 18-1960-1, 18-1958-1, 18-1950-1. Replaces: Mercruiser 76351A2, 76351A1, 76351A04, 60426A1, 49964A1, 49964A2.Marine Power 0993-001. Barr MC20-60426P. Related Item(s) Code Name Price Availability 6790 Sierra Mercruiser Manifold 18-1950-1 $468.95 6817 Sierra Elbow Gasket 18-2833 $3.99