18-Pin Unsealed Automotive Connector – 6098-1164, Sumitomo Female Plug for Interior & Body Electronics Wiring Harness

Part number 6098-1164 is an 18-pin unsealed (non-waterproof) automotive connector from Sumitomo Electric Industries used in Toyota, Honda, and other Japanese OEM vehicle interior and body electronics wiring harnesses. The “unsealed” designation indicates this connector does not have individual wire seals or a waterproof housing — it is designed for interior applications where moisture exposure is not expected. Unsealed connectors are lower cost and more compact than waterproof equivalents, making them the standard for interior wiring where IP67 is not required.

Key Specifications

• Part Number: 6098-1164
• Manufacturer: Sumitomo Electric Industries
• Housing Type: Female plug (cable-mount)
• Pin Count: 18 pins
• Sealing: Unsealed (non-waterproof, for interior use)
• Housing Material: PA66 nylon, flame retardant
• Operating Temperature: -40°C to +105°C
• Application: Interior and body electronics wiring in Toyota, Honda, and Japanese OEM vehicles

Sealed vs Unsealed Connectors — When to Use Each

• Unsealed (this product): For interior applications where moisture exposure is not expected: instrument clusters, door panels (above the window line), dashboard electronics, interior lighting, and HVAC controls. Lower cost, more compact, easier to assemble (no wire seals required).
• Sealed (waterproof, IP67): For underbody, engine bay, door lower section, and exterior applications where moisture exposure is expected. Required for any connector that may be exposed to water, road spray, or condensation.
• Selection rule: Use unsealed connectors only for interior applications protected from moisture. Never substitute an unsealed connector for a sealed connector in an outdoor or underbody location.

Frequently Asked Questions

How do I identify the correct replacement for 6098-1164?

The part number 6098-1164 is molded into the connector housing. Cross-reference with the Toyota or Honda OEM parts catalog or the vehicle’s wiring diagram to verify it is the correct replacement. Verify: pin count (18), connector gender (female plug), and locking mechanism. For Toyota vehicles, the Toyota Electrical Wiring Diagram (EWD) specifies the connector part number for each harness location.

What contacts are compatible with 6098-1164?

Sumitomo 6098-series unsealed 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. Unsealed connectors do not require wire seals — the contacts are inserted directly into the housing without seals.

Can I use a sealed connector to replace an unsealed connector?

Yes, a sealed connector can replace an unsealed connector — it provides equal or better protection. However, the sealed connector may be physically larger and may not fit in the original mounting location. The reverse (using an unsealed connector to replace a sealed connector) is not acceptable — the unsealed connector will not provide the required moisture protection.

Typical Applications

• Instrument clusters: Interior cluster connections for gauge and warning light circuits
• Dashboard electronics: Interior control module connections
• Door panels: Interior door electronics above the window line
• HVAC: Interior climate control module connections
• Toyota/Honda repair: OEM connector replacement for damaged 18-pin interior harness connectors

Package Contents

1 piece — 6098-1164 18-pin unsealed automotive female connector housing. Contacts ordered separately if not included.