Description

Mercury MerCruiser / Quicksilver Impeller – 89980

Maintain proper engine cooling and prevent overheating with the genuine Mercury Marine / Quicksilver 89980 Water Pump Impeller. This OEM impeller circulates raw water through the outboard’s cooling system, ensuring consistent water flow to keep the engine operating at safe temperatures.

Manufactured to Mercury Marine’s original equipment specifications, the impeller features flexible elastomer vanes bonded to a center hub for durability and reliable performance in demanding marine environments.

Key Features

• Genuine Mercury / Quicksilver OEM water pump impeller

• Restores proper raw-water cooling flow through the engine

• Durable elastomer vanes bonded to a center insert to resist tearing

• Designed for reliable cooling and long service life

• Direct replacement for the factory-installed impeller.

Replaces / Cross Reference

• Mercury 47-89980

• Mercury 47-89980T1 / 47-89980Q1

• Mercury 68988

• Sierra 18-3054 aftermarket equivalent.

Compatible Mercury / Mariner Engines

Commonly used on Mercury and Mariner 2-stroke outboard engines, including:

• 3.5 HP outboards

• 3.6 HP outboards

• 3.9 HP outboards

• 4 HP (1-cylinder) outboards

• 4.5 HP outboards

• 7.5 HP outboards

• 9.8 HP outboards

These applications are typically found on vintage Mercury/Mariner outboards produced from the late 1970s through the mid-1980s, 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 reliable cooling system performance.

Important Compatibility Note

Impeller fitment may vary by engine model, driveshaft diameter, and serial number range. Always verify compatibility using the engine serial number or the existing impeller part number before ordering.