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Oil Seals & O-Rings (Tohatsu)

Fuel Pump Mounting O-Ring 2.6 × 18.7 mm – 3H6-07422-0

Brand: Tohatsu

SKU: 3H6-07422-0

$5.45
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The Genuine Tohatsu Fuel Pump Mounting O-Ring 3H6-07422-0 is an OEM replacement sealing component for selected Tohatsu four-stroke outboard motors. Measuring 2.6 mm in cross-section and 18.7 mm in inside diameter, this O-ring helps seal the mechanical fuel pump mounting connection. Ideal for replacing hardened, flattened or damaged seals during fuel pump removal, servicing and replacement, it helps maintain correct sealing between the pump and engine.

Key benefits

Key Benefits

  • - Genuine Tohatsu OEM replacement O-ring.
  • - Factory-specified 2.6 × 18.7 mm dimensions.
  • - Helps maintain correct fuel pump mounting seal.
  • - Suitable for selected four-stroke outboards.
  • - Ideal for mechanical fuel pump servicing.
  • - Replaces hardened, flattened or damaged seals.
  • - Supplied individually — not an O-ring kit.

Compatible Outboard Motors

  • Tohatsu Four-Stroke – 4HP–6HP
  • - MFS4B – 4HP
  • - MFS5B – 5HP
  • - MFS6B / MFS6BZ – 6HP
  • - MFS4C – 4HP
  • - MFS5C – 5HP
  • - MFS6C – 6HP
  • - MFS4D – 4HP
  • - MFS5D – 5HP
  • - MFS6D – 6HP
  • Tohatsu Four-Stroke – 8HP–9.8HP
  • - MFS8A2 / MFS8A3 – 8HP
  • - MFS9.8A2 / MFS9.8A3 – 9.8HP
  • - MFS8B – 8HP
  • - MFS9.8B / MFS9.8BX – 9.8HP

Cross-Reference & Superseded Part Numbers

  • Genuine Tohatsu References
  • - 3H6-07422-0 – O-Ring 2.6 × 18.7 mm
  • - 3H6074220M – Genuine ordering reference
  • - 3H6074220 – Unhyphenated reference

Suitable Applications

  • - Mechanical fuel pump mounting seal replacement.
  • - Four-stroke outboard fuel system servicing.
  • - Fuel pump removal and refitting.
  • - Repair of damaged or deteriorated pump mounting seals.
  • - Preventative seal replacement during fuel pump servicing.
  • - Engine maintenance and repairs.

Signs the O-Ring Needs Replacing

  • - Flattened or compressed sealing material.
  • - Cracked, hardened or deteriorated O-ring.
  • - Visible damage during fuel pump removal.
  • - Leakage or loss of sealing at the mounting connection.
  • - Swollen or distorted O-ring.
  • - Poor sealing following fuel pump servicing.

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