Mercury Water Pump Impeller Repair Kit, 8HP-9.9HP EFI & Carbureted FourStroke 803748K01

Mercury Water Pump Impeller Repair Kit, 8HP-9.9HP EFI & Carbureted FourStroke 803748K01 is a genuine OEM service kit designed for 2005 and newer Mercury and Mariner 8HP and 9.9HP FourStroke outboards with a standard gearcase. Replacing the water pump impeller at the recommended service interval helps maintain proper cooling water flow and protect your engine from overheating.

Compatible with the following (2005 and newer w/ standard gearcase):

• Mercury 8HP EFI FourStroke
• Mercury 8HP Carbureted FourStroke
• Mercury 9.9HP EFI FourStroke
• Mercury 9.9HP Carbureted FourStroke
• Mariner 8HP FourStroke
• Mariner 9.9HP FourStroke

This complete 6-piece repair kit includes the essential components needed to service the water pump and restore cooling system performance. Designed as a direct OEM replacement, each component is built to Mercury Marine specifications for proper fit and reliable operation.

Kit Includes:

• Water pump impeller
• Gaskets
• Roller pin
• Grommet
• Wear plate
• Water guide tube

Routine water pump maintenance is one of the most important services for any outboard. Replacing worn impeller components helps maintain proper engine cooling, improve reliability, and reduce the risk of costly overheating damage.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.