Sierra 18-3071 Water Pump Impeller for Yamaha Outboard Engines

The Sierra 18-3071 is a high-quality replacement water pump impeller designed specifically for Yamaha outboard engines. This critical cooling system component ensures proper water circulation to prevent engine overheating and maintain optimal operating temperatures.

Key Features:

• Engineered to meet or exceed OEM specifications for reliable performance
• Direct replacement for Yamaha OEM part numbers 6E5-44352-00-00 and 6E5-44352-01-00
• Designed for use on Yamaha 115, 130, 150, 175, 200, 225, and 250 HP outboard engines
• Compatible with F225 and LF225 3.3L engines and VF225 SHO 4.2L engines
• Cross-references with GLM 89930, Mallory 9-45609, and 9-45609-10

Water pump impellers are essential maintenance components that should be inspected regularly and replaced as needed. The impeller is water-lubricated and can be damaged quickly if run dry, or can become stiff and brittle over time due to heat exposure or prolonged storage. Sierra marine engine parts are manufactured to deliver dependable performance and long service life in demanding marine environments.