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Flushing Plugs & Caps (Tohatsu)

Flushing Connector Cap 3RS-72404-0

Brand: Tohatsu

SKU: 3RS-72404-0

$12.35
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The Genuine Tohatsu 3RS-72404-0 Flushing Connector Cap is designed to seal the freshwater flushing port on compatible 4-stroke outboard motors. It helps protect the flushing connection from dirt, salt and debris while maintaining a secure seal during normal operation. Ideal for replacing lost, cracked or damaged caps, this genuine replacement part supports regular freshwater flushing and cooling-system maintenance, particularly after saltwater use.

Key benefits

Key Benefits

  • - Genuine Tohatsu OEM replacement flushing connector cap.
  • - Helps seal the engine's freshwater flushing port.
  • - Protects the flushing connection from dirt, salt and debris.
  • - Suitable for selected Tohatsu 4-stroke outboards.
  • - Ideal for replacing missing, cracked or damaged caps.
  • - Supports regular freshwater flushing after saltwater operation.
  • - Simple replacement without modifying the original flushing connection.

Specifications & Dimensions

  • - Manufacturer: Tohatsu
  • - OEM Part Number: 3RS-72404-0
  • - Compact Part Number: 3RS724040
  • - Product Type: Flushing Connector Cap
  • - Application: Freshwater flushing port
  • - Installation Location: Drive shaft housing / flushing connector
  • - Engine Type: 4-stroke outboard

Compatible Tohatsu Outboards

  • 4-Stroke – 6HP to 9.9HP
  • - MFS6CZ – 6HP
  • - MFS8C – 8HP
  • - MFS9.8C – 9.8HP
  • - MFS9.9CX – 9.9HP
  • - MFS9.9CY – 9.9HP
  • These applications appear in the 2024–2025 Tohatsu factory parts catalogues.

4-Stroke – 9.9HP to 20HP

  • - MFS9.9E – 9.9HP
  • - MFS15E – 15HP
  • - MFS20E – 20HP
  • All three models list the exact cap in the drive shaft housing assembly.

4-Stroke – 25HP to 30HP

  • - MFS25D – 25HP
  • - MFS30D – 30HP
  • Both models list the cap as part number 3RS-72404-0 in the drive shaft housing assembly.

Signs the Flushing Connector Cap Needs Replacing

  • - Missing Cap: The freshwater flushing connection is left exposed.
  • - Cracked or Damaged Cap: Visible cracks, splits or deformation.
  • - Water Leakage: Water escapes around the flushing connector during operation.
  • - Damaged Threads: Cap cannot be securely tightened.
  • - Worn Seal: Seal ring is flattened, damaged or deteriorated.
  • - Corrosion or Salt Build-Up: Deposits interfere with correct seating.
  • - Loose Fitment: Cap no longer remains securely attached.

Important Fitment Information

  • - Confirm the outboard model and serial number before ordering.
  • - Inspect the flushing connector and seal ring when replacing the cap.
  • - 3RS-67147-0 seal ring is a separate part and should not be assumed included.
  • - Do not confuse this cap with a flushing hose adaptor or complete flushing connector assembly.
  • - Ensure the flushing cap is correctly fitted before operating the engine.
  • - Follow the manufacturer's flushing instructions, including any requirements concerning engine operation and water supply.

Shipping

Ships Australia-wide