MANIFOLD MERCRUISER #89011
Part Number: OSC-9011-A
HM Order #: 157831
Aluminum exhaust manifold for MerCruiser big block GM V8 454 gas engines. Used on many MerCruiser models, including 330, 340, and 454 magnum inboard and stern-drive (for fitment use part number cross reference below). Comes with gaskets, manifold-to-head bolts, and all necessary plugs.
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