2-Pin 7.8mm Waterproof Female Connector – High-Current Motorcycle Harness OEM 10717422

Direct-fit replacement for OEM part number 10717422, a 2-pin 7.8mm pitch IP68 waterproof female connector designed for high-current motorcycle electrical harness applications including battery leads, starter motor circuits, main power distribution, and lighting relay harness connections. The large 7.8mm terminal pitch handles up to 30A continuous current per pin.

Key Specifications

• OEM Part Number: 10717422
• Pin Count: 2
• Gender: Female (with wire)
• Terminal Pitch: 7.8mm
• Wire Gauge: 14 AWG (2.5 mm²)
• Wire Length: 5.5 inches (140 mm)
• Waterproof Rating: IP68
• Housing Material: PA66 glass-filled nylon
• Terminal Material: Copper alloy, tin-plated
• Current Rating: Up to 30A per pin (high-current circuits)

7.8mm vs 6.3mm vs 2.8mm – Terminal Pitch Current Capacity

Warning: Never substitute a smaller-pitch terminal in a high-current circuit. Using a 6.3mm or 2.8mm terminal in a 30A circuit will cause terminal overheating, melting, and fire risk.

Compatible Applications

• Motorcycle main power harness: Battery positive lead connector, starter relay harness
• ATV / UTV power distribution: Main fuse block and relay harness connector
• Marine / boat: Bilge pump, windlass, and high-current accessory harness connector
• General: Any 2-pin high-current (up to 30A) IP68 waterproof harness application

Diagnosis – High-Current Connector Faults

• Voltage drop under load: Measure voltage at both ends of the connector under full load – >0.2V drop indicates high contact resistance from a corroded or loose 7.8mm terminal
• Connector melting / discoloration: Caused by sustained high contact resistance – replace connector and verify terminal crimp quality and wire gauge match
• Intermittent starter engagement: A corroded 7.8mm terminal in the starter relay circuit causes voltage drop and intermittent starter motor engagement

FAQ

Q: What is the maximum current for a 7.8mm terminal?
A: The 7.8mm pitch terminal is rated for up to 30A continuous. For circuits above 30A, use a bus bar or ring terminal connection instead of a standard connector housing.

Q: Can I use a 6.3mm connector instead of 7.8mm?
A: No – the 6.3mm terminal is rated for 20A maximum. Using it in a 30A circuit will cause overheating and connector failure. Always match the terminal pitch and current rating to the circuit requirements.

Package Contents

1 × 2-Pin Female Connector (10717422) with 14 AWG wire and terminal insert