Kostal 09441391 3-Way Female SLK 2.8 Sealed Connector - Coding A

The Component: Genuine Kostal high-performance sealed female receptacle connector plug housing. SLK 2.8 Sealed Series taxonomy / 3-position single-row female casing / Coding A Profile (Jet Black Housing Shell / Premium Glass-Fiber Reinforced Polyamide PA66-GF30 / Single Wire Sealed SWS System / 1x3 Linear Layout / Female Automotive Sensor and Actuator Loom Plug / Component Variant Alias: 09441391 / Factory Reference: 9441391 / Production drawing alias: 09 4413 91 / Engineering Blueprint: SLK28-3S-3A / Alternative ID: 9444034 / Major OEM Cross-References: BMW 12.52.1.433.916 / 12521433916 / Ford 4R8Q-14A464-DB / Volvo 32359631 / Mercedes-Benz A1685452528 / A1685452528).

Applications & Fitment: Engineered as a premium, high-reliability original equipment (OE) specification waterproof connection plug designed explicitly for harsh environmental routing, heavy-duty chassis networks, and high-vibration under-hood vehicle layouts. This 3-pin heavy power and sensory female socket block is an absolute wiring loom repair, factory recall adjustment, and harness reconstruction staple across prominent European automotive manufacturing groups—most extensively integrated within BMW, Mercedes-Benz, Ford, Volvo, and VAG (VW, Audi, Skoda) factory electrical architectures. It is standardly deployed across multiple high-exposure vehicle zones, serving as the primary factory connector interface for high-pressure auxiliary fluid pumps, camshaft adjustment solenoids, exterior lighting hubs, and specialized powertrain sensory loops requiring high mechanical resilience.

It features a robust top-integrated thumb-locking latch lever that clicks securely over the mating header's retention deck, establishing a low-tolerance, positive engagement hold highly resilient to intense structural vibrations, engine compartment heat-soaking, and multi-axis heavy chassis harmonics. Engineered to conform to rigid global tier-1 tier-validation guidelines, its internal single-row cavities feature a standard 5.0mm structural spacing pitch designed to accept 2.8mm flat blade SLK series female socket terminals. Paired with independent silicone single-wire cavity seals (SWS), it forms an absolute moisture-proof and dustproof isolation field that blocks road salt spray, engine cleaning steam washdowns, and industrial grease tracking. Highly vulnerable to top-latch fatigue or front guide slot deformation on older high-mileage vehicle platforms if service technicians attempt removal using aggressive workshop picks or blunt pull leverage instead of releasing the integrated catch ramp.

Technical Attributes:

- Manufacturer Part Number: 09441391 / 9441391 / 09 4413 91 (Brand: Kostal / Germany Genuine Component Class)

- Product Series Taxonomy: SLK 2,8 Sealed Series Interconnect Family (Single Wire Sealing SWS Type)

- Configuration: 3-Position / 3-Way Female Receptacle Plug, Single-Row 1x3 Linear Layout

- Mechanical Polarization: Factory Indexed Coding A (Jet Black housing finish styling)

- Major Automotive OEM Cross-References: BMW 12521433916, Ford 4R8Q-14A464-DB, Volvo 32359631, Mercedes-Benz A1685452528

- Centerline Contact Pitch: 5.00mm lane depth spacing

- Contact System Terminal Envelope: Custom-engineered to shield high-reliability Kostal SLK 2.8 series flat female receptacle terminal leaves

- Connector Style: Receptacle Housing for Female Sockets (Free-Hanging Wire Loom Sensor and Power Module Plug)

- Fastening & Locking Architecture: Features an integrated positive locking mechanical thumb latch lever paired with clean-release front terminal alignment guide lanes

- Environmental Sealing Level: High-performance waterproof and dustproof isolation utilizing individual single-wire rubber cavity seals (SWS) inside 5.2mm nominal diameter entry gates

- Base Structural Compound: Premium Glass-Fiber Reinforced Polyamide (PA66-GF30) engineering polymer for maximum structural impact rigidity, high tensile strength, and exceptional thermal tracking memory

- Circuit Rating Threshold: Form-fitted for heavy-duty signaling and medium-to-high power delivery lines; ampacity limits certified up to 10A / 32A continuous reference levels depending on final wire cross-section loading

- Wire Gauge Range Accommodation: Precision bored to accept wire cross-sections from 0.22mm² up to 2.50mm² (approximately 24 AWG to 14 AWG nominal core width)

- Target Female Terminal Contacts (Not Included): Precision optimized to accept genuine Kostal SLK 2.8 single-wire sealed female crimp sockets (requires individual cavity single-wire rubber seals to preserve full IP-rated waterproof isolation; removal utilizes TOOL-IRT20 series tools)

- Mating Counterpart Interface: Pairs seamlessly inline inside wire-to-wire looms or directly onto device-side module pins as the direct female partner to matching 3-way male Kostal SLK 2.8 interface pin systems

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