Description

Mercury MerCruiser / Quicksilver Impeller – 89983T

Maintain proper engine cooling and prevent overheating with the genuine Mercury Marine / Quicksilver 89983T Water Pump Impeller. This OEM impeller circulates raw water through the engine’s cooling system, ensuring consistent water flow to maintain safe engine operating temperatures.

Designed to Mercury Marine’s original equipment specifications, the impeller features flexible elastomer vanes bonded to a metal hub, providing durability and reliable cooling performance in demanding marine environments.

Key Features

• Genuine Mercury / Quicksilver OEM water pump impeller

• Restores proper raw-water cooling flow through the engine

• Flexible elastomer vanes with metal hub for durability

• Helps prevent engine overheating and cooling system damage

• Designed for direct replacement in Mercury and Mariner outboard water pumps

Replaces / Cross Reference

• Mercury 47-89983T

• Mercury 47-89983

• Mercury 47-65959

• Mercury 47-20268

• Sierra 18-3007

• Mallory 9-45300

Compatible Mercury / Mariner Engines

Commonly used on Mercury and Mariner outboard engines, including:

• 30 HP outboards

• 35 HP outboards

• 40 HP outboards

• 45 HP outboards

• 50 HP outboards

• 60 HP outboards

• 65 HP outboards

• 70 HP outboards

These applications cover many 2-stroke and some early 4-stroke Mercury/Mariner outboards from the 1970s through the 1990s, depending on serial number range.

Service Recommendation

Water pump impellers are wear items and should generally be inspected annually and replaced every 100 operating hours or once per season to maintain proper cooling performance.

Important Compatibility Note

Impeller fitment can vary by engine model, gearcase design, and serial number range. Always verify compatibility using the engine serial number to ensure the correct replacement part.