Sumitomo 6189-0591 HX Series 1-Way Female Sealed Plug

Includes terminals and seals

The Component: Genuine Sumitomo 6189-0591 1-way female automotive sealed connector plug. HX Series 090 (2.3mm) 1-position socket receptacle housing (Black / PBT+G / Single-Wire Sealed / Loose Piece).

Series Taxonomy: Sumitomo HX Series 090 Sealed System. A high-reliability, micro-format Japanese automotive environmental interconnect platform engineered by Sumitomo. Developed to maintain total weatherproofing, exceptionally low initial contact resistance, and secure telemetry transmission within high-stress engine management layouts subject to extreme thermal spikes and continuous chassis vibration.

Connector Interface: 1-position (1-way) single-cavity female socket plug configuration explicitly designed to house a standard 2.3mm (.090 size) wide female socket receptacle contact (such as Sumitomo HX series contacts).

Locking and Sealing Security: Environmentally sealed to an IP67 waterproof and dustproof automotive classification, engineered to operate continuously within a demanding sub-hood temperature threshold certified from -40 to +120 degrees Celsius. Equipped with an integrated, highly effective Terminal Position Assurance (TPA) front-lock retainer mechanism that snaps into the front face to completely eliminate the risk of contact pin back-out under severe harness pulling. Utilizes a robust inner silicone perimeter compression seal combined with matching rear single-wire rubber insulation cavity seals (SWS) to construct an absolute water-tight, gas-tight environmental barrier against fluid contamination.

Mating Complement: Connects inline wire-to-wire or wire-to-sensor by mating directly onto its corresponding 1-way male inline tab partner plug variant under Sumitomo part number 6181-0803, or matching engine-mount sensor male component header pin shrouds.

Common Applications: Extensively specified as a factory original equipment (OE) mainstay across prominent Japanese passenger car networks and high-performance powertrain layouts, most notably within Honda, Acura, Toyota, and Nissan engine infrastructure. Universally recognized across the auto-electrical trade as the definitive wiring harness repair pigtail for Honda B-Series, K-Series, D-Series, and H-Series engine configurations. Most frequently deployed as the factory engine knock sensor wiring plug, vehicle horn speaker connector, and high-vibration air conditioner compressor clutch link (commonly cross-referenced across tuning workshops as the Honda K20/K24 engine knock sensor plug overhaul kit). Highly vulnerable to front retainer fracture, exterior locking latch snapping from age-related thermal embrittlement, or terminal throat distortion if forced aggressively during routine engine diagnostics or starter/knock sensor swaps.

Sumitomo 6189-0591 HX Series 1-Way Sealed Female Knock Sensor & Car Horn Plug Housing

Clear persistent engine malfunction codes, eliminate erratic timing telemetry dropouts, and reinstate maximum factory-standard environmental insulation at your powertrain layout with the genuine Sumitomo 6189-0591 1-way female sealed connector plug housing. Precision-manufactured to strict Tier-1 original equipment global automotive engineering guidelines by Sumitomo, this 1-pin HX Series 090 contact carrier block is an indispensable piece for executing professional sensor pigtail restorations, custom motorsport wire tucking, and clean auto-electrical loom repairs. Engineered explicitly to survive punishing dynamic forces directly on the engine block, it establishes a solid, zero-clearance conduction channel that safely routes critical logic reference signals and knock sensor data lines back to the ECU.

The 6189-0591 carrier housing features an ultra-stable single-cavity matrix optimized around the 2.3mm (.090) female terminal footprint, cleanly handling thin-wall automotive cabling cross-sections from 0.30mm² up to 2.00mm² (22–14 AWG) depending on your choice of socket contact pin and wire seal. The housing block is injection-molded from a premium, heat-stabilized Polybutylene Terephthalate compound with glass reinforcement (PBT+G) finished in a factory black profile, ensuring outstanding structural impact defense, high dimensional tracking tracking stability, and complete immunity to chemical degradation from hot engine oils, fuel vapors, and road salt spray. Working in absolute uniformity with its internal perimeter radial face seals and single-wire insulation rubber seals, it forms an impenetrable shield that blocks ambient moisture and grime. This authentic component allows independent auto-electrical trade specialists, diagnostic garages, and custom import engine tuners to deliver zero-resistance, professional factory restorations.

Engineering Specifications and Technical Attributes:

- Manufacturer Part Number: 6189-0591 (Brand: Sumitomo / Japan Genuine Class)

- Component Mating Blueprint Variant: HX090-1S (HX Series 1-Pole Female Carrier)

- Configuration: 1-Way Female Receptacle Housing, Single-Cavity Layout

- Product Series Taxonomy: HX Series Connectors / 090 (2.3mm) Sealed Micro Class

- Mating Terminal Size Footprint: 2.3mm (.090 inch standard automotive footprint)

- Target Wire Cross-Section Envelope: Accommodates wire sizes from 0.30mm² up to 2.00mm² (22–14 AWG)

- Associated Single Wire Seals: Fits individual seals sized to wire diameter (e.g., Grey 0.3-0.5mm² or Green/Yellow variants)

- Base Structural Compound: Premium High-Temperature Glass-Filled PBT+G

- System Sealing Classification: Waterproof / Dustproof High-Performance Environmental Shielding (IP67 Rated)

- Operating Temperature Envelope: Robust -40 to +120 degrees Celsius capability

- Terminal Position Assurance: Yes (Integrated separate front-lock TPA plate insert)

- Primary Vehicle Fleet Application: Fits Honda K-Series / B-Series Knock Sensors, Horn Speakers, and A/C Compressors (Mates with 6181-0803)

- Commercial Access: Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent tuning garages, fleet service hubs, and trade auto-electrical stockists.HX sealed series

Housing Inline

2.3mm (090)

Sealed/Unsealed sealed

Male/Female F

Way 1

Mating parts 6181-0803 (HX sealed series)

Materials PBT

Color Black

Contact resistance

Initial 3mΩ Max.

after durability tests 6mΩ Max.

Leak current 100μA Max.

Insulation resistance 100MΩ Min.

Seal

Initial 98kPa Min.

after durability tests 49kPa Min.

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