OEM Water Pump Impeller for Selected Tohatsu 9.9HP–20HP Outboards Keep your outboard running cool and reliable with the Genuine Tohatsu Water Pump Impeller 334-65021-0. Manufactured to genuine OEM specifications, this premium impeller provides maximum cooling water flow, dependable engine protection, and long service life. Regular replacement helps prevent overheating, protects vital engine components, and ensures reliable performance on every trip.
Water Pump Impellers (Tohatsu)
Water Pump Impeller 334-65021-0
Brand: Tohatsu
SKU: 334-65021-0
$46.65
Key benefits
Dimensions
- Outside Diameter (OD) - 40.7 mm
- Inside Diameter (ID) - 13.9 mm
- Overall Height - 22.3 mm
- Number of Blades - 8
- Drive Type - 3-Key Drive
- Material - Marine Grade Neoprene Rubber
Key Benefits
- Genuine Tohatsu OEM replacement
- Precision moulded for maximum water flow
- Eight-blade impeller for efficient cooling
- Marine-grade neoprene construction
- Direct OEM fit
- Suitable for scheduled servicing or complete water pump rebuilds
- Helps prevent overheating and expensive engine repairs
Compatible Tohatsu Outboard Motors
- 2-Stroke Models
- M9.9B2
- M9.9C
- M9.9D2
- M12C2
- M15B2
- M15C
- M15D2
- M18C2
- M18D
- M18E2
- MX18E2
- M25A2
Factory parts catalogues specifically list this impeller for
- M9.9D2
- M15D2
- M18E2
- MX18E2
4-Stroke Models
- MFS9.9B
- MFS9.9B2
- MFS9.9C
- MFS9.9D
- MFS15B
- MFS15B2
- MFS15C
- MFS15D
- MFS18B
- MFS18B2
- MFS18C
- MFS20C
- MFS20D
Suitable for many Japanese-built Mercury and Mariner outboards manufactured by Tohatsu, including
- Mercury
- 9.9HP Super 2-Stroke (2005–2014)
- 15HP Super 2-Stroke (2005–2014)
- 9.9HP EFI Four Stroke
- 15HP EFI Four Stroke
- 20HP EFI Four Stroke
- Mariner
- 9.9HP Super 2-Stroke
- 15HP Super 2-Stroke
- 9.9HP EFI Four Stroke
- 15HP EFI Four Stroke
- 20HP EFI Four Stroke
- Important: Fits Japanese-built Mercury and Mariner outboards (generally serial numbers beginning with 0N for many 2-stroke models). Always confirm your engine model and serial number before ordering.
Cross Reference Part Numbers
- Tohatsu 334-65021-0
- Mercury 47-803748
- Mercury 8M0135803
- Sierra 18-8921
Signs Your Impeller Needs Replacing
- Weak or no tell-tale water stream
- Engine overheating
- High engine temperature alarm
- Reduced cooling water flow
- Impeller more than two years old
- Outboard stored for extended periods
- Water pump serviced during annual maintenance
Why Replace Your Water Pump Impeller?
- The water pump impeller is one of the most important service items on any outboard motor. As the rubber blades age they become hard, crack, or break apart, reducing cooling water flow. Replacing the impeller every 2–3 years or every 100 operating hours, or according to your manufacturer's maintenance schedule, helps prevent overheating, protects internal engine components, and maximises engine reliability.
Shipping
Ships Australia-wide