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Fuel Accessories (Tohatsu)

Fuel Cock Assembly 309-70011-0

Brand: Tohatsu

SKU: 309-70011-0

$25.75
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The Genuine Tohatsu 309-70011-0 Fuel Cock Assembly is designed for selected 2.5HP and 3.5HP 2-stroke outboard motors fitted with an integral fuel tank. This genuine OEM fuel shut-off valve allows the operator to control petrol flow from the tank to the carburettor. Ideal for replacing leaking, seized or damaged fuel taps, it helps maintain reliable fuel delivery and prevents unwanted fuel flow during storage and servicing.

Key benefits

Key Benefits

  • - Genuine Tohatsu OEM fuel cock assembly.
  • - Designed for selected 2.5HP and 3.5HP 2-stroke outboards.
  • - Allows manual control of fuel flow.
  • - Helps prevent unwanted fuel leakage when closed.
  • - Suitable for integral fuel tank systems.
  • - Factory-specified replacement for compatible engines.
  • - Ideal for replacing seized or leaking fuel taps.
  • - Supports reliable fuel delivery to the carburettor.
  • - Suitable for routine fuel system repairs and maintenance.

Specifications & Dimensions

  • - Manufacturer: Tohatsu
  • - OEM Part Number: 309-70011-0
  • - OEM Ordering Number: 309700110M
  • - OEM Description: Fuel Cock
  • - Product Type: Manual fuel shut-off valve
  • - Fuel System: Gravity-fed integral fuel tank
  • - Operation: Manual ON/OFF fuel control
  • - Engine Type: 2-stroke
  • - Compatible Horsepower: 2.5HP and 3.5HP
  • - Installation Location: Integral fuel tank outlet / fuel supply system

Compatible Tohatsu Outboards

  • 2-Stroke – 2.5HP
  • - M2.5A2 – 2.5HP: Documented 2003 model.
  • 2-Stroke – 3.5HP
  • - M3.5A2 – 3.5HP: Documented 2003 model.
  • - M3.5B2 – 3.5HP: Documented 2003 model; also listed in the 2026 parts catalogue.

Cross-Reference & Replacement Part Numbers

  • Genuine Tohatsu OEM
  • - 309-70011-0 – Genuine fuel cock assembly.
  • - 309700110M – OEM ordering number.
  • - 309700110 – Alternative unformatted part reference.

Signs the Fuel Cock Needs Replacing

  • - Fuel leaking around the tap body.
  • - Fuel continues flowing when the valve is closed.
  • - Valve lever is seized or difficult to operate.
  • - Cracked or damaged fuel tap housing.
  • - Corrosion or deterioration around the fittings.
  • - Fuel tap cannot be securely mounted.
  • - Restricted fuel flow to the carburettor.
  • - Engine stalls or suffers fuel starvation despite adequate fuel in the tank.
  • - Damaged valve seals or worn internal components.

Important Fitment Information

  • - Confirm the exact outboard model and serial number before ordering.
  • - This is a genuine Tohatsu OEM fuel cock assembly, not an aftermarket replacement.
  • - Designed for selected 2.5HP and 3.5HP 2-stroke engines with integral fuel tanks.
  • - Not every 2.5HP or 3.5HP outboard uses the same fuel valve.
  • - Compare the original valve's mounting and fuel outlet arrangement.
  • - Inspect the fuel hose and hose clips during replacement.
  • - Replace damaged or deteriorated fuel hoses.
  • - Ensure the fuel tap operates freely between ON and OFF.
  • - Check all connections for fuel leaks after installation.
  • - Perform fuel system servicing with the engine stopped, away from ignition sources.
  • - Follow the manufacturer's service instructions.

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