The Component: Genuine Bosch high-performance sealed female socket connector plug housing. Kompakt 1.1a Series taxonomy / 2-position single-row linear female casing / Code 1 Standard Keying Profile (Jet Black Housing Shell / Premium Glass-Reinforced PA66 GF30 / Sealed Waterproof / 1x2 Configuration / Female Inline Injector and Sensor Plug / Component Variant Alias: 1-928-403-874 / Global Order Reference: 1928403874).

Applications & Fitment: Engineered as a premium, original equipment (OE) heavy-duty waterproof connection plug designed explicitly for harsh, extreme-vibration under-hood environments. This 2-pin female socket block is a core engine-room staple globally integrated across major passenger vehicle and heavy commercial transport platforms—prominently utilized by BMW (12512247471), VW/Audi Group (7L0973702), Volvo (31268192), Renault (7703597062), MAN (81254750152), and Cummins (3164098) networks. It is standardly deployed for critical low-voltage powertrain monitoring runs including diesel common-rail fuel injectors, high-pressure fuel pumps, camshaft/crankshaft position sensors, and engine oil temperature units. It features an integrated high-stiffness mechanical top locking latch that seats cleanly with a distinct audible click over the mating male counterpart's indexing ramp, establishing an absolute, low-tolerance retention hold certified resilient up to severe 30G powertrain vibration profiles. Engineered to meet strict tier-1 environmental validation parameters, its internal silicone rubber radial interface matrix and independent terminal cavity seal configurations form an impermeable barrier against high-pressure washdowns, road salt mist, fine track dust penetration, and hot oil misting. Highly vulnerable to primary locking tab fracture if field technicians attempt coarse workshop pry tools to release the plug instead of cleanly depressing the rear thumb latch arm.

Technical Attributes:

- Manufacturer Part Number: 1928403874 / 1-928-403-874 (Brand: Bosch / Automotive Genuine Component Class)

- Product Series Taxonomy: Kompakt 1.1a Low-Pole Interconnect Family

- Configuration: 2-Position / 2-Way Female Socket Plug, Single-Row 1x2 Linear Layout

- Keying Profile Architecture: Code 1 physical keyway alignment guide layout

- Contact System Terminal Envelope: Custom-engineered to shield high-reliability 2.8mm nominal blade width lance-locking female terminal contacts (such as Bosch BDK 2.8 series micro-crimp sockets)

- Connector Style: Socket Housing for Female Contacts (Free-Hanging Inline Wire Loom or Direct Engine Device Interface Plug)

- Fastening & Locking Architecture: Features an integrated heavy-duty plastic thumb locking latch clip lever arm

- Environmental Sealing Level: High-performance waterproof and dustproof isolation utilizing a pre-installed internal bright orange silicone rubber radial perimeter interface matrix seal

- Base Structural Compound: Premium 30% Glass-Fiber Reinforced Polyamide (PA66 GF30) engineering polymer for maximum thermal tracking resistance, rigid dimensional memory, and impact toughness

- Color Profile: Factory Standard Jet Black housing assembly block

- Circuit Rating Threshold: Form-fitted to support standard low-voltage signaling networks operating below 32V DC continuous

- Operational Thermal Window: Extended-durability engine bay and cylinder block mounting envelope certified to maintain structural form and seal compliance from -40°C up to +150°C

- Target Female Terminal Contacts (Not Included): Precision optimized to accept genuine Bosch 2.8mm female crimp terminals (requires individual single-wire cavity rubber seals to preserve full IP-rated waterproof performance)

- Mating Counterpart Interface: Pairs seamlessly inline or to device headers as the direct female partner to matching 2-way male Bosch Kompakt 1.1a component part number 1928404226 or corresponding male device pins

- Commercial Access: Available as loose individual housing shells or complete trade repair connection kits containing matched terminals and wire seals. Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent garages, loom remanufacturers, and trade auto-electrical stockists.