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Fuel Pumps (Tohatsu)

Fuel Pump Diaphragm – 3H6-04005-0

Brand: Tohatsu

SKU: Fuel Pump Diaphragm – 3H6-04005-0

$40.10
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The Genuine Tohatsu Fuel Pump Diaphragm 3H6-04005-0 is an OEM replacement component for selected carburetted Tohatsu four-stroke outboard motors. Fitted inside the mechanical fuel pump, this flexible diaphragm operates with engine pressure pulses to help deliver fuel to the carburettor. Ideal for repairing pumps affected by damaged, hardened or leaking diaphragms, it provides an individual replacement component for fuel pump servicing and maintenance.

Key benefits

Key Benefits

  • - Genuine Tohatsu OEM fuel pump diaphragm.
  • - Helps restore the operation of a compatible mechanical fuel pump.
  • - Designed for selected carburetted four-stroke outboards.
  • - Suitable for fuel pump repairs and maintenance.
  • - Replaces split, hardened or deteriorated diaphragms.
  • - Supplied individually — not a fuel pump assembly or repair kit.

Compatible Outboard Motors

  • Tohatsu Four-Stroke – 4HP–6HP
  • - MFS4B – 4HP
  • - MFS5B – 5HP
  • - MFS6B – 6HP
  • - MFS4C – 4HP
  • - MFS5C – 5HP
  • - MFS6C – 6HP
  • - MFS4D – 4HP
  • - MFS5D – 5HP
  • - MFS6D – 6HP
  • - MFS6BZ – 6HP
  • Tohatsu Four-Stroke – 8HP–9.8HP
  • - MFS8A3 – 8HP
  • - MFS9.8A3 – 9.8HP
  • - MFS8B – 8HP
  • - MFS9.8B – 9.8HP
  • - MFS9.8BX – 9.8HP

Cross-Reference & Superseded Part Numbers

  • Genuine Tohatsu References
  • - 3H6-04005-0 – Fuel pump diaphragm
  • - 3H6040050M – Genuine ordering reference
  • - 3H6040050 – Unhyphenated reference

Suitable Applications

  • - Mechanical fuel pump diaphragm replacement.
  • - Four-stroke outboard fuel system servicing.
  • - Repair of faulty or leaking fuel pumps.
  • - Fuel pump disassembly and rebuilding.
  • - Replacement of damaged or deteriorated diaphragms.
  • - Restoration of reliable carburettor fuel delivery.

Signs the Fuel Pump Diaphragm Needs Replacing

  • - Cracked, split or punctured diaphragm.
  • - Hardened or distorted diaphragm material.
  • - Insufficient fuel delivery to the carburettor.
  • - Engine hesitation or stalling under load.
  • - Difficulty starting due to inadequate fuel supply.
  • - Fuel leakage caused by diaphragm deterioration.
  • - Intermittent pump operation.

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