Sierra 18-3047 Marine Water Pump Impeller Kit - Neoprene 12-Fin

The Sierra 18-3047 is a complete marine water pump impeller kit designed to maintain your engine's cooling system and prevent overheating. This comprehensive kit includes a 12-fin neoprene impeller (18-3061), two water pump gaskets (18-0499 and 18-3140), and a quad ring (18-7480) for a complete installation.

Key Features:

• 12-fin neoprene impeller construction for durability in harsh marine environments
• Complete kit with impeller, gaskets, and O-ring for fast, easy installation
• Engineered to meet or exceed OEM specifications
• Compatible with Crusader 305, 350, and 454 CID engines
• Fits Volvo Penta AQ190A (1976-1977) and AQ240A (1976-1977) models

Replaces OEM Part Numbers: Volvo Penta 835874, Sherwood 10615K, Jabsco 18948-0001, Mallory 9-45706, GLM 89621

Impellers are critical components in marine engine cooling systems. Running through silty water or operating a pump dry can damage impellers quickly, causing engine overheating. Sierra makes maintenance simple by packaging complete kits with all necessary components. Regular impeller replacement is recommended annually or every 100 hours of operation to ensure reliable performance and prevent unexpected failures on the water.