8-Pin 2.3mm Unsealed Male & Female Connector – Motorcycle Harness OEM 6090-1051 / 6090-1021

Direct-fit replacement for part numbers 6090-1051 (male housing) and 6090-1021 (female housing), an 8-pin 2.3mm pitch unsealed connector set used in motorcycle ECU, instrument cluster, and body harness circuits. The 2.3mm pitch is a standard motorcycle harness format used across Honda, Yamaha, Kawasaki, and Suzuki platforms for multi-function body control connectors.

Key Specifications

• Part Numbers: 6090-1051 (male) / 6090-1021 (female)
• Pin Count: 8
• Gender: Male & Female set (with wire)
• Terminal Pitch: 2.3mm
• Wire Gauge: 20 AWG (0.5 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 5A per pin

6090-1051 vs 6090-1021 – Male vs Female

In this series, 6090-1051 = male plug (pin side) and 6090-1021 = female receptacle (socket side). The last two digits of the suffix (-51 vs -21) differentiate male from female in the 6090 series.

Pin Assignment Reference (8-Pin Body Harness)

Note: Verify pin assignment with motorcycle-specific wiring diagram before installation.

Compatible Applications

• Honda / Yamaha / Kawasaki / Suzuki: ECU sub-harness, instrument cluster, and body control connectors using 2.3mm pitch 8-pin format

Diagnosis – Common Faults

• Intermittent ECU or instrument cluster faults: Inspect terminal contact pressure – unsealed 2.3mm terminals are prone to spread from vibration
• No CAN bus communication: Inspect Pin 7 (CAN-H) and Pin 8 (CAN-L) – an open circuit on either line causes complete loss of CAN bus communication

Package Contents

1 × 8-Pin Male Connector (6090-1051) + 1 × 8-Pin Female Connector (6090-1021), each with 20 AWG wire and terminal insert