Sierra Replacement Manifold Kit for MerCruiser Big Block V8 454 / 502 Engines 18-1957-2

Comparable Part Numbers:
 • Osco: 9011A
 • GLM: 51240
 • MerCruiser: 89011A8 , 807078T08 , 807078T10 , 89011
 • Barr marine: MC-1-89011

Kit Contains:
 • 1x Exhaust Manifold
 • 1x Hose Fitting with Drain plug
 • 1x Mounting Package
 • 1x Manifold to Riser/Elbow Gasket
 • 1x Manifold to Head Gasket