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Manifold Riser, 18-1976-2 (replaces 18-1976-1)
Manifold Riser, 18-1976-1. Replaces: Mercruiser Inboard/Outboard #44354A3. Fits most Mercruiser V-6 & V-8 applications 7 Deg. (4" O. D. Riser). Includes 18-0987, 18-4263, 18-4258. Use with. Manifold (18-1952-1)(18-1953-1)(18-19571