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

2 Pack Exhaust Manifold for MerCruiser

These replacement exhaust manifolds are designed for MerCruiser GM V8 305 and 350 engines, directly replacing OEM part numbers 860246A15, 860246Q11, and 51230.

Overview

Each manifold in this 2-pack is a direct-fit replacement for MerCruiser V8 exhaust manifolds, ensuring proper exhaust flow and cooling. Built for marine environments, these manifolds are ideal for boat owners maintaining MerCruiser GM V8 305 or 350 engines. The set includes two manifolds for a complete side replacement.

Built For Performance

• Constructed from durable cast iron to withstand high temperatures
• Precision-cast ports for optimal exhaust flow
• Includes all necessary gaskets and hardware for installation
• Corrosion-resistant coating for marine use
• OEM-spec dimensions ensure a proper seal and fit

Fits These Machines

• for MerCruiser GM V8 305 engines
• for MerCruiser GM V8 350 engines
• for MerCruiser models using 860246A15, 860246Q11, 51230

On-The-Job Use

• Commonly used in stern drive and inboard marine applications
• Replaces worn or cracked exhaust manifolds on saltwater and freshwater boats
• Ensures proper engine cooling and exhaust routing
• Ideal for routine maintenance or engine rebuilds

Specs At A Glance

Good To Know

Q: Will these manifolds fit a 1990 MerCruiser 350? A: These manifolds are designed for GM V8 305 and 350 engines, but fitment may vary by serial number; confirm compatibility before ordering.

Q: Are gaskets included? A: Yes, the pack includes the necessary gaskets for installation.

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