KOSTAL 10800507250

Kostal 10800507250 SealStar / MLK 1.2 Series Single-Wire Silicone Cavity Seal

Protect sensitive powertrain telemetry and block fluid contamination at the terminal level with the genuine Kostal 10800507250 single-wire cavity seal. Precision-molded to strict original equipment quality metrics, this high-performance silicone rubber grommet is the primary factory-specified sealing component for Kostal MLK 1.2 terminals and the high-density Hirschmann SealStar 1.2mm automotive connector range. Designed with high-compression external sealing ribs, it creates a robust environmental block inside the housing cavity to achieve an IP67 and IP69K protection rating against high-pressure steam cleaning, road spray, fuel vapors, and engine oils.

The 10800507250 variant features a bright yellow color-coding profile for quick inspection alignment on the build bench. It is engineered specifically to accept standard thin-wall automotive cabling with an insulation outer diameter tracking between 1.4mm and 2.1mm (perfectly matching conductor cross-sections from 0.5mm² to 1.0mm²). Optimized for 1.2mm compact terminal systems, this resilient silicone seal crimps directly onto the terminal wire wings to provide excellent strain relief and defense against capillary moisture transmission. It is extensively utilized across European passenger car and heavy commercial vehicle platforms to safeguard critical engine block sensors, ignition loops, and exterior chassis camera systems.

### Engineering Specifications & Technical Attributes:

* **Manufacturer Part Number:** 10800507250

* **Component Type:** Single-Wire Cavity Seal (SWS) / Wire Grommet

* **System Family Interfacing:** Hirschmann SealStar 1.2 / Kostal MLK 1.2 Series

* **Insulation Jacket Capacity:** Optimized for outer wire diameters between 1.4mm and 2.1mm

* **Conductor Range Compatibility:** Fits 0.5mm² to 1.0mm² (20–16 AWG) cabling

* **Material Substrate:** High-temperature, fluid-stabilized Yellow Silicone Rubber

* **Environmental Protection:** Meets IP67 and IP69K pressure washdown parameters

* **Commercial Access:** Tiered B2B trade pricing structures apply automatically at checkout for auto-electrical distributors, heavy fleet maintenance garages, and wire-harness factories.