Quicksilver 43749 Exhaust Riser Mounting Bolt 5-3/4 Inch

The Quicksilver 43749 is an OEM exhaust riser mounting bolt designed specifically for MerCruiser sterndrive engines. This 5-3/4 inch fastener secures the exhaust riser elbow to the engine block, ensuring a proper seal and reliable exhaust routing.

Key Features:

• Genuine Mercury Marine OEM part for guaranteed fit and quality
• 5-3/4 inch length designed for 4-inch riser elbows
• Compatible with 4.3L, small block, and big block MerCruiser engines
• Precision-engineered threads for secure installation
• Corrosion-resistant construction for marine environments

Compatibility Notes:

• Fits MerCruiser engines equipped with 4-inch exhaust riser elbows
• Not compatible with dry joint exhaust systems (2002 and newer)
• Not suitable for engines with riser-mounted remote oil filters

This critical fastener maintains the integrity of your engine's exhaust system, preventing leaks and ensuring proper engine performance. Replace worn or corroded mounting bolts during exhaust riser service to maintain system reliability.