Sierra 18-1845 Dry Joint Exhaust Elbow Riser for MerCruiser V6 V8 Engines

The Sierra 18-1845 is a dry-joint exhaust riser elbow designed for MerCruiser V6 and V8 marine gas engines with dry-joint style exhaust systems (2004 and newer). This replacement riser is engineered to replace 14-degree down-angle risers and does not replace 7-degree versions. The universal design fits either side of the engine and accepts all original mounting brackets, making installation straightforward.

Key Features:

• Machined using computerized CNC equipment ensuring proper gasket mating surfaces with innovative core placement process that prevents internal shifting
• 100% leak tested prior to leaving the manufacturing facility
• Primed and painted for added durability and protection against the harsh marine environment
• Manufactured as a direct OE replacement and fully interchangeable with OEM products
• 14-degree outlet angle with 4-inch outlet diameter
• Features finished gasket contact surfaces for reliable sealing

Compatibility: Fits 2004 and Up V6 and V8 (305, 350, 377 cubic inch) engines with serial number 0W310000 and Up, and 2002 and Up V8 (350 and 377) engines with serial number 0M317000 and Up.

OEM Cross-Reference: Replaces MerCruiser part number 864591T02.

Required Gaskets (sold separately): 18-0720 (Closed), 18-0721 (Open), or 18-0722 (Restricted). Use With Manifold: 18-1843.

Qualifies for Sierra's Industry Leading Customer Satisfaction Warranty. Sierra is dedicated to protecting you and your investment. For 50 years Sierra has proudly been offering high quality engine and drive parts.