WSM 700-403 Water Pump Impeller for Mariner 8-15 HP Outboards

The WSM 700-403 is a precision-engineered replacement water pump impeller designed specifically for Mariner 8 HP through 15 HP outboard motors. This critical cooling system component circulates water through the engine block to prevent overheating and ensure optimal performance.

Key Features:

• Direct replacement impeller for Mariner 8-15 HP outboard engines
• Constructed from durable neoprene rubber for reliable performance and longevity
• Precision-molded blades ensure proper water flow and pressure
• Designed to meet or exceed OEM specifications
• Essential preventative maintenance component to avoid costly overheating damage

Regular impeller replacement is recommended as part of routine outboard maintenance, typically every 2-3 years or 200-300 hours of operation. A failing impeller can lead to engine overheating, reduced performance, and potential engine damage. WSM marine products are manufactured to provide reliable performance for recreational and commercial marine applications.