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Water Pump Impellers (Tohatsu)

Water Pump Impeller – 309-65021-1

Brand: Tohatsu

SKU: 309-65021-1

$23.15
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The Genuine Tohatsu Water Pump Impeller 309-65021-1 is an OEM replacement component designed for compatible Tohatsu outboard cooling systems. The flexible impeller blades circulate cooling water through the engine to help maintain correct operating temperatures. Ideal for scheduled water pump maintenance or replacing worn, cracked or damaged impellers, this genuine replacement helps restore reliable cooling performance and protect the outboard motor from overheating.

Key benefits

Key Benefits

  • - Genuine Tohatsu OEM water pump impeller.
  • - Designed for compatible factory water pump assemblies.
  • - Flexible blades support efficient cooling water circulation.
  • - Suitable for routine outboard servicing.
  • - Replaces worn, cracked or damaged impellers.
  • - Helps reduce the risk of overheating caused by poor water pump performance.
  • - Supplied individually, not as a complete water pump kit.

Specifications & Dimensions

  • - Manufacturer: Tohatsu
  • - OEM Part Number: 309-65021-1
  • - Genuine Ordering Number: 309650211M
  • - Product Type: Water pump impeller
  • - Material: Flexible rubber with central drive hub
  • - Outside Diameter: 41.0 mm (1.61 in)
  • - Inside Diameter: 12.0 mm (0.47 in)
  • - Impeller Height: 14.0 mm (0.55 in)
  • - Number of Blades: 6
  • - Drive Type: Profiled hub drive; confirm against original

Compatible Outboard Motors

  • Tohatsu Conventional Two-Stroke
  • - M2.5A / M2.5A2 – 2.5HP
  • - M3.5A / M3.5A2 – 3.5HP
  • - M3.5B – 3.5HP, selected earlier configurations only
  • Mercury / Mariner Two-Stroke
  • - 2.2HP – Selected models
  • - 2.5HP – Selected models
  • - 3HP – Selected models
  • - 3.3HP – Selected models
  • Johnson / Evinrude Two-Stroke
  • - 2HP–3HP – Selected models using the corresponding 114812 impeller configuration.

Cross-Reference & Superseded Part Numbers

  • Genuine Tohatsu References
  • - 309-65021-1 – Genuine water pump impeller.
  • - 309650211M – Tohatsu ordering format.
  • Earlier Part Reference
  • - 309-65021-0 – Earlier impeller reference; confirm supersession for the particular engine.
  • OEM & Aftermarket Cross-References
  • - Mercury / Mariner 47-95289-2
  • - Mercury / Mariner 47-114812
  • - Johnson / Evinrude 0114812 / 114812
  • - CEF 500396
  • - Mallory 9-45312
  • - Sierra 18-45312

Suitable Applications

  • - Outboard water pump impeller replacement.
  • - Scheduled cooling system maintenance.
  • - Lower unit water pump servicing.
  • - Replacement of damaged or hardened impellers.
  • - Water pump rebuilding on compatible small outboards.

Signs the Impeller Needs Replacing

  • - Weak or intermittent cooling water flow.
  • - Engine overheating.
  • - Cracked, hardened or missing impeller blades.
  • - Permanent deformation of the flexible vanes.
  • - Excessive wear or damage discovered during servicing.
  • - Impeller age or operating hours exceeding the recommended maintenance interval.

Shipping

Ships Australia-wide