8-Pin Automotive Waterproof Connector – 6188-6386, Sumitomo Plastic Wire Harness Connector

Part number 6188-6386 is an 8-pin waterproof automotive connector from Sumitomo Electric Industries used in Toyota, Honda, and other Japanese OEM vehicle wiring harnesses. The 6188-XXXX part number format is characteristic of Sumitomo’s waterproof connector series. The 8-pin configuration is common for sensor clusters, multi-function actuator connections, and body electronics sub-connectors where 8 circuits are required in a single sealed connector.

Key Specifications

• Part Number: 6188-6386
• Manufacturer: Sumitomo Electric Industries
• Pin Count: 8 pins
• IP Rating: IP67
• Housing Material: PA66 nylon, flame retardant
• Operating Temperature: -40°C to +125°C
• Application: Toyota, Honda, and Japanese OEM vehicle wiring harnesses

8-Pin Connector — Common Applications in Japanese Vehicles

• ABS/VSC modules: 8-pin connectors for ABS wheel speed sensor cluster connections
• Transmission: Automatic transmission solenoid and sensor connections
• Body electronics: Door module and body control sub-connector connections
• Lighting: Multi-circuit lighting assembly connections (headlight with DRL, indicator, and position light)
• HVAC: Blower motor and climate control actuator connections

Frequently Asked Questions

How do I identify the correct replacement for 6188-6386?

The part number 6188-6386 is molded into the connector housing. Cross-reference with the Toyota or Honda OEM parts catalog to verify it is the correct replacement for your specific vehicle and connector location. The Toyota Electrical Wiring Diagram (EWD) and Honda Service Manual wiring diagrams specify the connector part number for each harness location. Verify pin count (8), gender, and locking mechanism before ordering.

What contacts are compatible with 6188-6386?

Sumitomo 6188-series connectors use Sumitomo-specific contacts. Cross-reference the connector part number in the Sumitomo catalog or Toyota/Honda parts catalog to identify compatible contact part numbers. Common Sumitomo contact sizes for 8-pin connectors: 0.64mm, 1.5mm, or 2.0mm pitch depending on the specific connector series.

Can I repair individual terminals in a Sumitomo 8-pin connector?

Yes. Individual terminal replacement is the most cost-effective repair. Use a Sumitomo-compatible terminal extraction tool to remove the damaged terminal, crimp a new terminal onto the wire, and reinsert until the locking lance clicks. Verify seating with a pull-test. For Toyota vehicles, the Toyota Repair Manual specifies the terminal extraction tool and replacement procedure for each connector type.

Typical Applications

• Toyota vehicles: ABS, transmission, and body electronics connector repair
• Honda vehicles: Sensor cluster and body electronics connector replacement
• Japanese OEM repair: Sumitomo 8-pin connector replacement in Japanese vehicle wiring harnesses
• Automotive workshops: Workshop stock for Toyota/Honda connector repairs

Package Contents

1 piece — 6188-6386 8-pin automotive waterproof connector (housing as specified). Contacts and wire seals ordered separately if not included.