Yazaki 7157-3646 2.3II (090II) Series Red Single Wire Seal

The Component: Genuine Yazaki high-performance single wire seal (SWS). 2.3II (090II) Sealed Interconnect taxonomy / Individual moisture barrier gland / Premium High-Elasticity Silicone Rubber / Multi-Rib Weather-Tight Profile / Wire Insulation Moisture Block / Component Variant Alias: 7157-3646 / Global Order Reference: 71573646 / Yazaki Component Class: Single Wire Cavity Seal for 090II Series Waterproof Automotive Connectors.

Applications & Fitment: Engineered as a premium, severe-duty original equipment (OE) specification environmental sealing gland designed explicitly to isolate individual wire insulation entry points from high-pressure moisture, road spray, fluid track dirt, and engine compartment contaminants. This high-visibility red silicone rubber cavity seal is an absolute wire harness remanufacturing, custom loom assembly, and localized field repair staple across leading international vehicle platforms—most extensively integrated within Toyota, Lexus, Honda, Nissan, Mitsubishi, and Subaru factory automotive electrical networks utilizing the Yazaki 2.3II (090II) series sealed connector family.

It is standardly deployed across critical exterior and under-hood wiring junctions, crimped directly behind the terminal insulation ears for camshaft sensors, electronic throttle bodies, fuel injection nodes, and chassis-mounted safety runs. It features a precision-molded triple-outer-rib geometry that exerts continuous, stable compression against the internal plastic cavity walls of the connector housing block, creating a resilient, low-tolerance waterproof barrier (IP-rated) that stands up to severe multi-axis vibration, continuous engine thermal cycling, and heavy engine washing down steps. Engineered to conform to rigid tier-1 automotive manufacturing and environmental isolation standards, its pliable inner bore slides tightly over standard automotive thin-wall insulation boundaries, preventing moisture tracking down the copper strands and entirely eliminating wire corrosion over continuous service lifetimes. Highly critical service item for auto-electrical workshops, marine electronic installers, motorsport loom builders, and diagnostic technicians who must replace compromised, heat-aged, or oil-soaked seals whenever pins are extracted during harness rebuilding.

Technical Attributes:

- Manufacturer Part Number: 7157-3646 / 71573646 (Brand: Yazaki / Japan Genuine Component Class)

- Product Series Taxonomy: 2.3II (090II) Series Sealed Automotive Interconnect Family

- Component Type: Single Wire Seal (SWS) / Cavity Moisture Blocking Gland

- Physical Dimensions: 5.80mm Overall Length × 5.70mm Maximum Outer Diameter × 5.70mm Radial Depth

- Target System Tab Sizing: Engineered for 2.3mm (.090 inch) nominal blade width contact systems

- Base Material Compound: Premium High-Grade Silicone Rubber providing exceptional ozone stability, high tear resistance, and robust fuel/oil misting deflection

- Color Profile: Factory Standard High-Visibility Red finish for swift sizing identification and optical inspection confirmation inside the harness entry paths

- Wire Insulation Range Capacity: Precision optimized to seal securely against standard automotive thin-wall low-voltage cables (such as AVS / CAVS profiles) ranging from 0.50mm² up to 1.25mm² (approx. 20 AWG to 16 AWG core runs depending on overall outer insulation diameter)

- Housing Matrix Integration: Tailored to fit tightly inside the rear terminal entry channels of standard Yazaki 2.3II (090II) series sealed female receptacle plugs and male pin tab connector shroud blocks

- Target Terminal System Compatibility: Certified for direct crimping co-assembly onto matching 090II series contacts, including Male Pins (7114-4025, 7114-4026, 7114-4029-08, 7114-4028-08) and Female Sockets (7116-4028-08, 7116-4029-08, 7116-5044-02, 7116-5045-02)

- Environmental Sealing Level: Complete splashproof, dustproof, and high-pressure washdown isolation when properly seated alongside matched housing and terminal sub-assemblies

- Operational Thermal Window: Severe-duty engine block, chassis route, and wheel-well layout certified to maintain material elasticity and sealing compliance across a harsh performance spectrum from -40°C up to +120°C

- Assembly Recommendation: Must be loaded onto the wire insulation *prior* to strip and terminal crimp operations; requires appropriate F-crimp profile insulation jaws on an automotive open-barrel crimp tool to roll the terminal ear neatly over the seal neck without piercing the silicone mantle

- Commercial Access: Available as loose individual pieces for immediate field repair, convenient trade-pack workshop refill boxes, or bulk volume master production runs. Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent garages, loom remanufacturers, and trade auto-electrical stockists.