Original Hirschmann 805-120-522

Includes terminals and seals

The Component: Genuine Hirschmann 805-120-522 2-way female automotive sealed connector housing plug. SealStar 1.2mm Series (HHA-BU-2-pol. Cod. B) 2-position receptacle socket casing (Natural / Off-White / PA66 GF25 / Single-Wire Sealed / Mechanical Keying Code B).

Series Taxonomy: Hirschmann SealStar 1.2mm Sealed Series System. A premium, high-integrity German automotive interconnect platform engineered by Hirschmann to support structural miniaturization. Developed to deliver uncompromising waterproof defense, high thermal threshold capacity, and flawless signal performance under extreme dynamic vibration profiles.

Connector Interface: 2-position (2-way) single-row female socket plug configuration featuring a compact 4.00mm centerline pitch matrix. Designed with an internal contact alignment track keyed specifically to house standard 1.2mm width female socket terminals (such as TE Connectivity MCON 1.2 or MLK 1.2 series contacts).

Locking and Sealing Security: Environmentally sealed to a strict IP X9K high-pressure washdown classification, designed to perform continuously within a severe automotive temperature threshold certified from -40 to +150 degrees Celsius. Equipped with a pre-assembled, integrated top-mounted Connector Position Assurance (CPA) locking mechanism to guarantee perfect hardware latching and safeguard the connection against severe chassis harmonics or engine-block resonance. Employs a robust, high-performance inner radial silicone perimeter compression seal combined with matching rear individual single-wire insulation seals to construct an absolute water-tight, gas-tight moisture barrier.

Mating Complement: Connects inline wire-to-wire or wire-to-device by clicking directly onto its corresponding 2-way male inline tab partner housing assembly under part number 805-120-521, or matching Code B male device headers from the Hirschmann SealStar 1.2 platform.

Common Applications: Extensively specified as a factory original equipment (OE) mainstay across prominent European passenger car networks, luxury transport platforms, and motorsport wiring architectures, most prominently within Mercedes-Benz, BMW, and Volkswagen Audi Group (VAG) vehicles. Universally recognized across the auto-electrical trade as the primary wiring harness repair pigtail for supplemental restraint systems (SRS), including front/side airbags, chassis impact crash sensors, fuel injector nodes, variable valve timing (VVT) solenoids, and camshaft adjustment valves (frequently cross-referenced to Mercedes-Benz OEM part numbers A0225452026 and A0295451126). Highly vulnerable to physical locking arm distortion, CPA tab fatigue over extended operational lifespans, or internal channel fracture if pried open roughly with uncalibrated tools during routine powertrain or airbag system diagnostics.

Hirschmann 805-120-522 SealStar 1.2 Series 2-Way Sealed Female Airbag & Crash Sensor Plug Housing

Clear persistent airbag dashboard warning lights, eliminate erratic timing solenoid faults, and reinstate maximum factory-standard environmental insulation at your vehicle's safety or fuel management circuits with the genuine Hirschmann 805-120-522 2-way female sealed connector housing. Precision-molded from heat-stabilized, glass-fiber reinforced Polyamide (PA66 GF25) to strict original equipment global engineering guidelines by Hirschmann, this SealStar 1.2 series socket carrier block is an indispensable trade piece for executing professional sensor pigtail repairs, custom motorsport loom sectioning, and clean auto-electrical overhauls. Engineered explicitly to survive punishing dynamic forces near the engine block, transmission, and wheel arches, it establishes a solid, zero-clearance conduction channel that safely routes critical logic data lines, signal loops, and low-voltage current paths.

The 805-120-522 carrier housing features a 2-pole matrix layout optimized around the 1.2mm MCON/MLK terminal footprint, handling fine-gauge automotive wire sizes from 0.22mm² to 1.00mm² (24–17 AWG) cleanly. Its distinct factory natural/off-white shroud profile features Code B mechanical keying to ensure perfect alignment during assembly, preventing dangerous mis-mating errors on complex multi-sensor harness junctions. Working in absolute uniformity with its internal perimeter radial seals and rear silicone wire insulation seals, it forms an impenetrable barrier that completely locks out road spray, hot engine oil vapors, ambient grime, and abrasive dirt. This authentic component allows independent auto-electrical trade specialists, diagnostic garages, and classic vehicle restoration engineers to deliver reliable, factory-correct wiring overhauls.

Engineering Specifications and Technical Attributes:

- Manufacturer Part Number: 805-120-522 (Brand: Hirschmann / Germany Genuine Class)

- Auto-Click Core System Identifier: Our Part Number 2-AC083 (Verified Stock Allocation)

- Configuration: 2-Way Female Receptacle Housing, Single-Row Inline Sensor Layout

- Product Series Taxonomy: SealStar 1.2mm / Low Pole Sealed Interconnect Class

- Mechanical Shroud Profile: Mechanical Keying Code B / Factory Natural Off-White Color Profile

- Centerline Pitch Matrix: Tight 4.00mm Pitch spacing

- Target Terminal Interface: Accepts standard 1.2mm width female socket contacts (e.g., TE Connectivity MCON 1.2 / MLK 1.2 series)

- Target Wire Cross-Section Capacity: Accommodates wire cross-sections from 0.22mm² up to 1.00mm² (24–17 AWG)

- System Locking Feature: Pre-assembled top Connector Position Assurance (CPA) slide lock

- Environment Profile: Waterproof / Dustproof Weatherproof Shielding (IP X9K Rated)

- Operating Temperature Envelope: Extended -40 to +150 degrees Celsius capability

- Primary Vehicle Fleet Cross-Reference: Fits Mercedes-Benz A0225452026 / A0295451126 Airbag, Impact, and Crash Sensors (Mates with 805-120-521)

- Commercial Access: Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent tuning garages, safety systems specialists, and trade auto-electrical stockists.We ship worldwide daily, and you can pay safely with PayPal