Hirschmann 805-992-541 4-Way Female 1.2mm HMK Plug | Auto-Click

4 Way Automotive Connector (includes terminals and seals)

Hirschmann 805-992-541 SealStar 1.2 HMK Series 4-Way Sealed Female Sensor Plug with CPA

Protect critical engine telemetry, variable-valve actuators, and high-pressure fuel monitoring systems from extreme mechanical vibration and fluid ingress with the genuine Hirschmann 805-992-541 4-way female automotive connector. Precision-engineered in Germany by Hirschmann to rigorous automotive engineering standards, this 4-pin single-row socket housing belongs to the heavy-duty SealStar 1.2 HMK interconnect family. Built explicitly to pass severe European LV214 powertrain testing profiles, it utilizes a high-compression internal silicone face seal and individual cable-entry tracks to achieve an unyielding IPX7/IPX9K waterproof barrier capable of withstanding high-pressure steam washdowns, boiling engine oils, and aggressive road spray.

The 805-992-541 housing block is injection-molded from premium, 35% glass-fiber reinforced polyamide (PA66 GF35) finished in an industrial black tone, delivering phenomenal dimensional stability and absolute defense against thermal stress cracking under a severe operational envelope up to +150°C. The internal 4-position cavity matrix is designed around a 1.2mm flat terminal interface on a compact 4.0mm pitch grid. For ultimate safeguard against connection failures, this plug features a dual-locking defensive system: an internal primary terminal latch reinforced by a secondary TPA lock frame, plus a highly visible red mechanical Connector Position Assurance (CPA) top slider that locks the plug immovably onto its mating header. Extensively relied upon across premium European platforms to run high-vibration powertrain accessories—such as common rail fuel pressure sensors, electronic turbo wastegate actuators, and engine knock loops—this authentic component allows wiring harness builders and diagnostic technicians to perform absolute zero-resistance factory loom restorations.

### Engineering Specifications & Technical Attributes:

* **Manufacturer Part Number:** 805-992-541 (Series: SealStar 1.2 HMK)

* **Configuration:** 4-Way Female Receptacle Plug, Single-Row Inline

* **Vibration Performance:** Certified to LV214 Severity 4 (SG4) engine-mounted parameters

* **Locking Security:** Integrated mechanical red CPA slider lock with internal TPA retention plate

* **Terminal Cavity Sizing:** Accepts 1.2mm flat socket terminals (HMK 1.2 / MLK 1.2 series)

* **Centerline Pitch Grid:** 4.0mm layout spacing

* **Sealing Classification:** Environmentally Sealed / Waterproof (IPX7 / IPX9K Pressure Washdown Rated)

* **Material Substrate:** Premium heat-stabilized, impact-resistant Polyamide 66 with 35% Glass Fiber (PA66 GF35)

* **Commercial Access:** Tiered automated B2B trade volume discounts apply instantly inside your shopping basket for independent tuning garages, commercial fleet hubs, and specialist wire-harness assembly centers.