Sumitomo 6189-0256 4-Way Female TS 090 Housing

The Component: Genuine Sumitomo OEM 4-position sealed female socket inline housing / Premium Sumitomo TS Sealed Series waterproof automotive plug / 4-way 2x2 square-grid configuration layout / Direct factory alternative for Toyota OEM Part Number 90980-11178 / Fitted with a front-loading white secondary locking retainer / Integrated internal silicone perimeter moisture face seal / Molded from premium, impact-resistant, heat-stabilized glass-reinforced PBT (Polybutylene Terephthalate) / Component Part Number: 6189-0256 / Alternate Engineering Identifier: 61890256.

Applications & Fitment: Heavy-duty, waterproof, and dust-proof electrical wiring harness interface engineered specifically for critical emission, sensor, and powertrain circuits on Japanese automotive platforms—most notably throughout Toyota, Lexus, Suzuki, and Subaru engine bays. This authentic 4-pin 2.3mm (090) Sumitomo female housing is the primary factory-standard plug for heated oxygen (O2) sensors, air-fuel ratio sensors, and camshaft positioning sensors. Designed to withstand the punishing environment of the lower exhaust path, high ambient engine heat, chemical fluids, and continuous road vibrations, its rugged PBT-GF shell ensures a secure, long-term electrical contact. Once the 2.3mm female crimp terminals and wire seals are fully seated in the rear cavities, the front-loading white secondary lock snaps home to prevent pin back-out. A high-demand stocking item for diagnostic sensor repairs, custom wiring loom production, aftermarket exhaust integrations, and trade wholesale distribution.

Technical Attributes:

- Manufacturer Part Number: 6189-0256 / 61890256 (Brand: Sumitomo Wiring Systems, Ltd)

- Cross-Reference Part Number: Toyota 90980-11178 / 9098011178

- Product Component Classification: TS Sealed Series Female Socket Housing

- Total Position Count: 4-Way / 4-Cavity Female Plug Block

- Cavity Layout Matrix: 2x2 Square-Grid Configuration Profile

- Mating Terminal System Compatibility: Accepts genuine Sumitomo TS series female crimp socket terminals (2.3mm / 090 wire terminals)

- Primary Locking Mechanism: Top-mounted integrated thumb-depress lock lever with positive tactile feedback

- Terminal Position Assurance: Front-loading white secondary locking wedge insert

- Ingress Protection Status: Completely Weatherproof / Waterproof Fully Sealable (Includes internal premium silicone face seal)

- Structural Material Base: PBT (Polybutylene Terephthalate)

- Colour Profile: Factory Gray (GR)

- Physical Dimensions: Length: 31.8 mm | Width: 21.4 mm | Height: 21.0 mm

- Commercial Procurement Status: Supplied as an individual standalone female plug with pre-loaded face seal and front lock wedge. Crimp terminals, individual wire seals, and mating male plugs (6188-0175 / Toyota 90980-11177) are purchased separately. Standard multi-tier bulk trade pricing applies automatically at checkout.