2-Pin 6.3mm Unsealed Male Connector – Motorcycle High-Current Relay & Power Harness

A 2-pin 6.3mm pitch unsealed male connector for high-current motorcycle harness applications including relay sockets, main fuse connections, starter relay harness, and lighting power distribution circuits. The large 6.3mm terminal pitch handles up to 20A continuous current per pin, making it suitable for high-current motorcycle power circuits.

Key Specifications

• Pin Count: 2
• Gender: Male (with wire)
• Terminal Pitch: 6.3mm
• Wire Gauge: 16 AWG (1.5 mm²)
• Wire Length: 5.5 inches (140 mm)
• Sealing: Unsealed (interior / protected harness location)
• Housing Material: PA66 glass-filled nylon
• Terminal Material: Copper alloy, tin-plated
• Current Rating: Up to 20A per pin

6.3mm Terminal – High-Current Applications

Warning: Never substitute a smaller-pitch terminal in a 20A circuit. Using a 2.8mm terminal in a 6.3mm circuit will cause overheating and connector failure.

Compatible Applications

• Motorcycle relay socket: Main relay, fuel pump relay, starter relay harness
• Fuse box harness: Power distribution and fuse block connector
• Lighting power: Headlight relay and high-current lighting harness
• Honda / Yamaha / Kawasaki / Suzuki: High-current body harness connectors

Diagnosis – Common Faults

• Relay not engaging: Check 12V supply at the male connector pins under load – voltage drop >0.2V indicates high contact resistance from a corroded 6.3mm terminal
• Connector melting: Caused by sustained high contact resistance – replace connector and verify terminal crimp quality and wire gauge match

Package Contents

1 × 2-Pin Male Connector with 16 AWG wire and 6.3mm terminal insert