Sumitomo 6189-0031 2-Way Female MT Sealed Series Connector

The Component: Genuine Sumitomo MT Sealed Series high-performance 2-way female receptacle connector housing. Features a compact 2-position single-row layout / 2.2mm (090) terminal size profile / Premium impact-resistant, heat-stabilized PA66 nylon composite construction / Complete weatherproof sub-assembly plug / Component Part Number: 6189-0031 / Sumitomo Order Reference: 61890031.

Applications & Fitment: Engineered to maintain uncompromised signal continuity and absolute environmental insulation within harsh, high-vibration automotive applications and severe under-bonnet locations. This authentic 2-pin Sumitomo female plug is a highly utilized standard interface across major Japanese vehicle manufacturing architectures, notably specified throughout Toyota, Honda, Nissan, and Mitsubishi factory engine looms. It is heavily relied upon to connect and seal low-voltage circuits on high-exposure engine components, including VVT solenoids, oil pressure switches, camshaft position sensors, engine coolant temperature (ECT) sensors, and select auxiliary ignition infrastructure. Molded from premium, raw PA66 nylon polymer, the structural body provides excellent dimensional stability, minimal chemical aging, and absolute structural resistance against typical engine bay solvents, oils, and fuel vapours. The physical connector design includes a robust, top-mounted mechanical primary locking latch that snaps down securely to eliminate connector drift or backing off under continuous powertrain vibrations. Absolute ingress protection is established through an integrated internal red silicone perimeter lip seal paired with independent single-wire seals (SWS), easily satisfying IP67 dustproof and waterproof benchmarks against driving rain, road salt spray, and pressure washdowns. An indispensable original hardware item for high-level EFI loom building, professional motorsport harness configuration, and precise workshop wiring harness repairs.

Technical Attributes:

- Manufacturer Part Number: 6189-0031 / 61890031 (Brand: Sumitomo Wiring Systems, Ltd.)

- Product Series Taxonomy: MT Sealed Series / 2.2mm (090) Interconnection System

- Configuration: 2-Position / 2-Way Female Receptacle Assembly, Single-Row 1x2 Layout

- Contact System Blade Envelope: Form-fitted to house 2.2mm (090) series unplated or tin-plated female terminal blades

- Connector Style: Receptacle Housing for Female Sockets (Free-Hanging, Cable Mount, or Inline Device Shroud)

- Environmental Sealing Level: Weatherproof isolation via an integrated internal red silicone ring seal and matching single-wire cable seals

- Primary Fastening Architecture: Top-mounted snap-action finger latch with mechanical locking ramp

- Base Structural Compound: High-Grade Heat-Stabilized Polyamide 66 (PA66 Nylon)

- Colour Profile: Factory Standard Blue body casing with a bright Red internal lip seal

- Certified Operating Temperature: Continuous high-performance limits rated from -40°C minimum up to +120°C maximum

- Mating Counterpart Reference: Connects flawlessly with corresponding 2.2mm MT series 2-way male tab headers or inline male plugs (Sumitomo matching male housing reference: 6181-0070)

- Commercial Access: Available as loose individual connector plug bodies, complete field service replacement repair kits (with terminals and seals), or trade volume bulk allocations. Progressive B2B tiered wholesale discounts apply instantly to your trade basket.