Exhaust Manifold For MerCruiser GM V8 305 350 - 860246A15, 860246Q11, 51230

Exhaust Manifold for MerCruiser

This exhaust manifold is a direct replacement for MerCruiser GM V8 305 and 350 engines, cross-referencing OEM numbers 860246A15, 860246Q11, and 51230, routing exhaust gases from the engine to the cooling system.

Overview

This exhaust manifold for MerCruiser GM V8 305 and 350 engines replaces factory units and directs exhaust flow while integrating with the cooling system. Compatible with OEM part numbers 860246A15, 860246Q11, and 51230, it is built to restore performance and prevent overheating. Marine technicians and DIY boaters choose this exhaust manifold for its reliable fit and corrosion resistance.

Built For Performance

• Cast from durable, corrosion-resistant materials to withstand marine conditions
• Precision-machined mounting surfaces for a leak-free seal against the cylinder head
• Direct replacement for MerCruiser 860246A15, 860246Q11, and 51230 manifolds
• Optimized internal passages for efficient exhaust flow and cooling
• Includes necessary gaskets and hardware for a complete installation

Specs At A Glance

Good To Know

Q: Is this exhaust manifold a direct bolt-on for my MerCruiser 5.7L? A: It is designed as a direct replacement for the listed OEM part numbers; however, always match your engine's year and serial number to confirm compatibility with your specific model.

Q: What maintenance is required for this exhaust manifold? A: Inspect the manifold annually for cracks or corrosion and replace gaskets during installation to ensure a proper seal and prevent exhaust leaks.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.