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Ignition Coils (Tohatsu)

Spark Plug Cap with Resistance 346-06999-0

Brand: Tohatsu

SKU: 346-06999-0

$24.20
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The Genuine Tohatsu 346-06999-0 Spark Plug Cap with Resistance is a replacement ignition component designed for selected Tohatsu 2-stroke outboard motors. It connects the ignition lead to the spark plug while incorporating electrical resistance to help suppress ignition interference. Ideal for replacing cracked, corroded or loose plug caps, this genuine component helps maintain a secure electrical connection and reliable engine ignition during normal marine operation.

Key benefits

Key Benefits

  • - Genuine Tohatsu replacement ignition component.
  • - Built-in resistance for ignition interference suppression.
  • - Provides a secure connection between the ignition lead and spark plug.
  • - Suitable for selected Tohatsu 2-stroke outboards.
  • - Helps restore reliable ignition when replacing a faulty plug cap.
  • - Suitable for routine ignition-system servicing and repairs.
  • - Individual replacement without purchasing a complete ignition coil, where the cap is separately serviceable.

Specifications & Dimensions

  • - Manufacturer: Tohatsu
  • - OEM Part Number: 346-06999-0
  • - Compact Part Number: 346069990
  • - Product Type: Spark Plug Cap
  • - OEM Description: Plug Cap with Resistance
  • - Application: Outboard ignition system
  • - Engine Type: 2-stroke
  • - Installation Location: Spark plug end of ignition lead

Compatible Tohatsu Outboards

  • 2-Stroke – 6HP to 9.8HP
  • - M6B – 6HP
  • - M8B – 8HP
  • - M9.8B – 9.8HP
  • 2-Stroke – 9.9HP to 18HP
  • - M9.9D2 – 9.9HP
  • - M15D2 – 15HP
  • - M18E2 – 18HP
  • 2-Stroke – 60HP to 70HP
  • - M60C – 60HP
  • - M70C – 70HP
  • 2-Stroke – 2.5HP to 3.5HP
  • - M3.5A – 3.5HP
  • 2-Stroke – 25HP to 30HP
  • - M25H – 25HP
  • - M30H – 30HP
  • - 25JET – Jet-drive model
  • 2-Stroke – 40HP to 50HP
  • - M40D2 – 40HP
  • - M50D2 – 50HP
  • - MW50D2 – 50HP

Signs the Spark Plug Cap Needs Replacing

  • - Engine Misfiring: Intermittent ignition, particularly under load.
  • - Difficult Starting: Weak or inconsistent ignition caused by a poor plug-cap connection.
  • - Rough Idling: Uneven engine operation or occasional cylinder misfire.
  • - Cracked Insulation: Visible splitting or deterioration of the cap.
  • - Loose Connection: Plug cap does not grip the spark plug terminal securely.
  • - Corroded Contacts: Oxidation or moisture damage inside the connector.
  • - Electrical Tracking: Burn marks or evidence of high-voltage leakage.
  • - Incorrect Resistance: Resistance measurement is outside the manufacturer's specified range.
  • These symptoms can also arise from defective spark plugs, ignition coils or wiring.

Important Fitment Information

  • - Confirm the exact outboard model and serial number before ordering.
  • - Match the existing cap and ignition coil arrangement.
  • - The cap contains electrical resistance; do not substitute a non-resistor cap without confirming the manufacturer's ignition specifications.
  • - Check the spark plug terminal connection and ignition lead condition.
  • - Some twin-cylinder engines use two caps, while three-cylinder engines may require three.
  • - Sold individually, not as a complete ignition coil assembly.

Shipping

Ships Australia-wide