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Sierra Mercruiser GM Big Block Exhaust Manifold - 18-1957-2
$437.58
Sierra Mercruiser GM Big Block Exhaust Manifold - 18-1957-2 Item # 1555728
Description
Sierra Mercruiser GM Big Block Exhaust Manifold for MerCruiser 330, 340, and 454 Magnum Big Block V8 marine gas engines
Features:
- Interchangeable between port and starboard side
- Ideally suited for freshwater applications
- Heavy duty cast iron
- Painted black
- Includes all gaskets, short riser studs, drain elbow, and plugs
- Manifold mounting not included
Replaces:
- Barr: MC-1-89011
- GLM: 51240
- HE: 9011
- Mallory: 9-40506
- Marine Power: 0991-1000
- Mercruiser Stern Drive:
- 807078Q07
- 807078T08
- Osco: 9011