Exhaust Manifold Elbow - 18-1970-1 - Sierra
Replaces OEM part #
- MERCURY MARINE 98504A3
- Manifold: 18-1952-1, 18-1953-1, 18-1957-1
Elbow Gasket: 18-0897 restrictor, 18-2849 open, 18-0672 blocked
Mounting Kit: 18-8529 or if spacer is included use 18-8554
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