Sierra 18-1935-1 Marine Exhaust Riser for Volvo Penta V8 Sterndrive Engines

The Sierra 18-1935-1 is a premium marine exhaust manifold riser designed specifically for Volvo Penta V8 sterndrive engines. This durable cast iron riser is engineered as a direct OEM replacement part, delivering reliable exhaust routing performance for marine applications.

Key Features:

• Constructed from durable cast iron material for long-lasting marine use
• CNC-machined mating surfaces provide optimal seal without additional preparation
• Features 3.75-inch (95mm) outlet diameter with 30-degree down-angle configuration
• Precision castings with uniform wall thickness for consistent performance
• Primed and painted to withstand harsh marine environments
• Leak tested for quality assurance before packaging
• Includes gasket for installation

Compatibility:

• Designed for Volvo Penta V8 center rise manifold applications
• Compatible with Ford and GM center rise manifolds used in Volvo Penta engines
• Works with Sierra 18-1931-1 center rise manifolds
• Replaces Volvo Penta OEM part numbers: 855380, 855384, 855384-4, 856891, 856891-7, and 856879
• Cross-references: Mallory 9-40910, GLM 51510, Barr VO-20-855384, Osco 56879, HGE 5384

Installation Notes:

• Sold individually (most installations require two risers)
• Gasket included; mounting bolts sold separately
• Use with Sierra 18-8510 Exhaust Elbow Mounting Kit and 18-2971-1 Exhaust Manifold Gasket
• Ready for installation right out of the box

This Sierra exhaust riser meets or exceeds OEM specifications and is backed by SeaStar Solutions' limited two-year warranty. Sierra's precision manufacturing ensures exact fit and reliable performance for Volvo Penta marine engines.