Part Number: 710-47-8M0104229
Mercury 47-8M0104229 Sea Water Pump Impeller
Keep your marine cooling system operating reliably with the Mercury 47-8M0104229 Sea Water Pump Impeller. Designed as a genuine OEM replacement, this impeller helps maintain proper raw water circulation through the engine and exhaust system to protect against overheating and cooling system failure.
The raw water pump impeller is a critical maintenance component in any marine engine. Over time, the flexible rubber vanes can wear down, crack, or lose efficiency from heat, debris, and continuous use. Routine impeller replacement helps maintain strong cooling water flow, improve reliability, and reduce the risk of expensive engine damage caused by overheating.
Manufactured to Mercury Marine factory specifications, the 47-8M0104229 impeller is built using durable marine-grade materials engineered for long service life in both freshwater and saltwater environments. Designed as a direct replacement for compatible raw water pump systems, it delivers reliable fitment and dependable cooling performance.
Common Engine Fitments
The Mercury 47-8M0104229 impeller is commonly used on select MerCruiser and Mercury Marine engines, including:
- MerCruiser 4.5L MPI
- MerCruiser 6.2L MPI
- MerCruiser 350 MAG
- MerCruiser 377 MAG
- MerCruiser 8.2 MAG
- Mercury Racing sterndrive engine applications
These engines are frequently found in:
- Sea Ray sport boats and cruisers
- Chaparral SSX and SSi models
- Four Winns Horizon series
- Regal bowriders and cruisers
- Formula performance boats
- Crownline sport boats
The 47-8M0104229 impeller is commonly used in sea water pump systems where maintaining consistent raw water circulation is essential for engine cooling and exhaust temperature control.
Fitment can vary depending on engine serial number and raw water pump configuration, so confirming compatibility with part number 47-8M0104229 before ordering is recommended.
Key Features
- Genuine Mercury Marine OEM sea water pump impeller
- Helps restore proper cooling water circulation
- Designed for MerCruiser and Mercury Marine applications
- Durable marine-grade rubber construction
- Helps reduce the risk of overheating and cooling system failure
- Direct replacement for straightforward installation
Why Replace Your Marine Impeller?
A worn impeller can lose cooling efficiency long before complete failure occurs. Routine replacement helps maintain proper water flow, protect internal engine components, and reduce the chance of unexpected breakdowns during boating season.
If you’re servicing a compatible MerCruiser-powered boat, the Mercury 47-8M0104229 impeller delivers the OEM-quality fit and dependable cooling performance your engine was designed for.