Yazaki 7157-3570 58 Connectors X Type Single Wire Seal

The Component: Genuine Yazaki high-performance single-wire rubber cable gate seal. 58 Connectors X Type Heavy-Duty Sealed Series taxonomy / Single wire seal (SWS) cavity isolator / Standard Material Profile (High-Resiliency Silicone Elastomer Rubber / Deep Black Finish / Multi-Ribbed Compression Rings / Moisture-Blocking Cable Gland / Waterproof Fuel Pump, Alternator, and Power Distribution Housing Cavity Plug / Component Variant Alias: 7157-3570 / Global Order Reference: 71573570).

Applications & Fitment: Engineered as a premium, high-integrity original equipment (OE) specification single-wire waterproof seal designed explicitly to prevent moisture tracking, fluid ingress, and dirt bypass inside heavy-load automotive power circuits and exterior-exposed chassis junctions. This individual rubber wire gland is an absolute benchmarking, custom harness construction, and field loom repair staple across prominent Japanese passenger, utility, and heavy 4x4 transport platforms—most extensively integrated within factory Toyota, Lexus, Nissan, and Mitsubishi electrical harness layouts. It is standardly deployed across high-exposure under-hood and chassis environments, serving as the primary sealing barrier paired with Yazaki 58 Connectors X Type heavy-duty multi-way housing blocks (including 3-way female plug housing 7123-6234-40 and matching male inline casings).

It features a robust, multi-tier outer rib configuration designed to compress seamlessly inside standard housing cavity walls, alongside a precision inner wire gate hole that tightly conforms around thin-wall or standard automotive cable jackets. When compressed via terminal insulation crimp wings, it establishes a reliable, low-tolerance dual-stage moisture lock highly resilient to high-pressure under-body steam washdowns, boiling oil misting, fuel vapor saturation, and harsh winter road salt spray. Highly critical service component for auto-electrical workshops, professional harness remanufacturers, and fleet diagnostic garages overhauling corroded multi-pin plugs or building waterproof pigtail sub-assemblies for high-current fuel distribution or powertrain accessory modules.

Technical Attributes:

- Manufacturer Part Number: 7157-3570 / 71573570 (Brand: Yazaki / Japan Genuine Component Class)

- Product Series Taxonomy: 58 Connectors / X Type Sealed Interconnect Component Family

- Component Function: Individual Single-Wire Cable Seal (SWS) / Waterproof Cavity Isolator Ring

- Target Terminal Series Compatibility: Precision engineered to fit the rear insulation crimp wings of Yazaki 58 X Type 6.3mm (.250 series) nominal female and male crimp contacts (such as 7116 series box sockets)

- Compatible Housing Alignment: Form-fitted to slide into and seal the rear wire entry gates of Yazaki 58 X Type sealed automotive housings (including reference shell 7123-6234-40)

- Base Structural Compound: Premium High-Resiliency Silicone Elastomer Rubber for long-term compression set resistance, high thermal deflection, and robust ozone/chemical immunity over vehicle service life

- Color Profile: Factory Standard Deep Black finish for quick line identification and trade catalog matching

- Wire Insulation Outer Diameter Range Accommodation: Form-fitted for standard automotive low-voltage wire insulation profiles typically spanning from 2.00mm up to 3.10mm OD (optimized standardly for 0.50mm² up to 1.25mm² core cross-sections depending on wire wall type)

- Environmental Protection Rating: Establishes complete weather-tight IP-rated moisture-blocking, dust isolation, and fluid barrier performance when fully seated inside locked connector blocks

- Installation Protocol: Threaded onto the raw wire jacket core prior to conductor striping and terminal mechanical machine crimping; requires secure containment inside rear insulation ears

- Commercial Access: Available as loose individual seals, convenient trade workshop repair bench refill bags, or bulk trade master logistics boxes. Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent garages, loom builders, and trade auto-electrical stockists.