7157-3790-90 Blue Silicone Wire Seal | 62 Z-Type

Yazaki 7157-3790-90 Blue Silicone Wire Seal | 62 Z-Type

The Component: Genuine Yazaki 7157-3790-90 single wire cavity seal (SWS). 62 Connector Z-Type system / 1.50mm (.060) connector classification / Molded Sky Blue high-durability silicone / Loose piece format.

Applications & Fitment: Engineered as a dedicated, high-integrity environmental barrier to block dirt, moisture, and spray entry into unsealed terminal cavities. This seal is processed onto individual copper leads before crimping, seating cleanly behind the rear terminal insulation grips to seal the wire entries of Yazaki 62 Z-Type automotive plugs and caps.

Commonly deployed across global Japanese standard architectures—including Toyota, Nissan, and Honda wiring looms—for medium-current underhood or external chassis paths such as wheel speed sensors, minor pump connectors, reverse light junctions, and multi-pole distribution blocks. Highly vulnerable to tearing or deformation if stretched over heavy-gauge insulation layers exceeding its maximum outer diameter, or if forced into a connector housing cavity using sharp, non-blunted tool points.

Technical Attributes:

- Manufacturer Part Number: 7157-3790-90 / 7157379090 (Brand: YAZAKI Corporation / Original OE Automotive Specification)

- Product Family Ecosystem: Yazaki 62 Connector Z-Type Series Group

- Component Typology: Single Wire Cavity Seal (SWS) / Moisture Exclusion Boot

- Mating System Tab Size: 1.50mm (.060) blade series tracking pitch layout

- Material Compound: Premium high-flexibility, thermal-grade Silicone rubber

- Component Color Coding: Sky Blue (Denotes specific wire insulation outer diameter limits)

- Physical Footprint Dimensions: Length: 6.80mm / Outer Width: 5.00mm / Outer Height: 5.00mm

- Core Wire Accommodation (AVS/CAVS): Designed to seal ultra-thin-wall metric automotive primary cables sized at precisely 0.30mm² to 0.50mm²

- Target Wire Type Compatibility: Specifically optimized for AVS (0.30mm²) and CAVS (0.30mm² to 0.50mm²) type cross-sections

- Typical Insulation Outer Diameter Range: Accommodates small-to-medium insulation jackets ranging from approximately 1.30mm to 1.70mm (frequently utilized with 20 AWG TXL thin-wall automotive cabling formats)

- System Current Group Classification: MEDIUM Current Application Domain (6A Reference Standard)

- Associated Companion Terminals: Crimps perfectly onto Yazaki 62 Z-Type male pin terminals (e.g., 7114-1304, 7114-1305) and female socket terminals (e.g., 7116-1304, 7116-1305, 7116-1306, 7116-1307)

- Compatible Connector Housings: Seals the individual poles of 62 Z-Type housing blocks, such as the 7123-7740-40 (4-Way Female Plug) and the 7222-7780-40 (8-Way Male Cap)

- Packaging Format: Supplied as individual loose pieces for small-batch wiring harness production, field repairs, and prototyping. Trade wholesale tiered volume breaks are applied at the point of invoice.