Sierra 18-1931-1 Exhaust Manifold for GM 5.0L 5.7L V8 Volvo Penta

The Sierra 18-1931-1 is a marine exhaust manifold designed for GM small block V8 engines displacing 5.0L (305 CID) and 5.7L (350 CID). This high-quality aftermarket replacement manifold is engineered to meet the demanding requirements of marine applications and stands up to the harsh saltwater environment.

Key Features:

• Factory painted and leak tested for reliable performance
• Includes mounting package with gaskets for complete installation
• Port and starboard configuration sold individually
• Direct replacement for Volvo Penta part numbers 835804 and 856883
• Also interchangeable with GLM 51630, Mallory 9-40901, and Osco 5805

Applications:

Compatible with Volvo Penta AQ and BB series engines including models AQ200D, 200F, 225D, 225E, 225F, 255B, 260A, 260AV, 260B, 260C, 271A, 280A, 290A, 311A, AQ500, 570, BB225, 225AV, and 225B. Uses mounting kit 8511 for proper installation.

Sierra manifolds meet or exceed OEM specifications, ensuring proper fit and long-lasting durability in marine environments where exhaust components are subject to constant exposure to water and high temperatures.