Sierra MerCruiser 4.3 Liter V6 Exhaust Manifold 99746A17 9975 18-19521

Sierra 18-1952-1 Replacement Exhaust Manifold Kit 

For Sierra MerCruiser 4.3 Liter Exhaust Manifold V6 Engine

• Clean exhaust channels, high quality, homogeneous wall thickness externally, shot-peened for a smooth finish to provide a precise gasket mating surface, all mounting surfaces have been CNC machined. 
• Exhaust channels are clean and of good quality, with consistent wall thickness.
• Externally, shot-peened for a smooth finish.
• Surfaces for mounting CNC machining ensure a precise gasket mating surface.
• The manufacturer examined for leaks and applied a baked enamel finish.

SPECS