VAG 4B0973724 4-Way Female Sealed Ignition Coil Connector

The Component: Genuine VAG high-performance sealed female flat contact receptacle connector plug housing. VAG Automotive Powertrain Interconnect taxonomy / 4-position single-row female casing / Standard Keying Profile (Deep Black Housing Body / Premium Glass-Fiber Reinforced Polyamide Nylon / Sealed Waterproof IP Rated / 1x4 Flat Linear Layout / Female Ignition Coil Pack, Camshaft Phase, and Air Flow Sensor Loom Plug / Component Variant Alias: 4B0-973-724 / Global Order Reference: 4B0973724 / VAG Group Factory Reference: 4B0 973 724 / Interchangeable / Upgraded Reference Crosses: 1J0 973 724, 8K0 973 724).

Applications & Fitment: Engineered as a premium, heavy-duty original equipment (OE) specification wire-to-device waterproof connection plug designed explicitly for harsh top-of-engine valve cover routing, ignition primary circuits, high-vibration coil-on-plug (COP) assemblies, and critical engine bay sensor linkages. This 4-pin female socket block is an absolute wiring loom repair, engine swap pigtail, and harness reconstruction staple across prominent European passenger and performance platforms—most extensively integrated within Volkswagen, Audi, Seat, and Skoda factory petrol electrical architectures from the late 1990s through the 2010s. It is standardly deployed across high-heat engine valve-cover zones, serving as the primary factory connector interface for electronic ignition coil packs across classic 1.8T, 2.0T FSI/TSI, VR6, 2.7T, and related V6/V8 engine families. It features an integrated high-stiffness top-mounted primary plastic thumb-release locking tab mechanism paired with a high-visibility pink/purple internal secondary locking matrix clip, establishing a low-tolerance, positive engagement hold highly resilient to intense valve-train harmonics, continuous cylinder head thermal expansion cycles, and ignition block vibration feed. Engineered to conform to rigid tier-1 automotive manufacturing guidelines, its heavy-wall flat 1x4 internal cavities feature a standard 3.5mm center spacing pitch designed to receive and lock down high-performance 2.8mm nominal flat tab box receptacle terminals (such as TE Connectivity MCP 2.8 or Junior Power Timer / JPT series contacts). Paired with an integrated inner circumferential rubber perimeter interface seal and independent single-wire cavity rubber cable gates, it creates a fully weather-tight, IP-rated barrier against high-pressure engine bay steam washdowns, boiling oil misting, volatile fuel vapors, and unburnt hydrocarbon tracking. Highly vulnerable to top locking clip fatigue snapping, outer shield heat-scorching, or rear wire entry seal degradation due to thousands of hours of severe cylinder head thermal cycling, making it a high-demand service item for trade auto-electrical workshops, performance tuning garages, and motorsport engine loom builders.

Technical Attributes:

- Manufacturer Part Number: 4B0 973 724 / 4B0973724 (Brand: VAG / Germany Genuine Automotive Component Class)

- Product Series Taxonomy: VAG Automotive Sealed Flat Contact Interconnect Family

- Configuration: 4-Position / 4-Way Female Receptacle Plug, Single-Row 1x4 Flat Linear Layout

- Centerline Matrix Pitch: 3.50mm terminal centerline layout spacing pitch

- Contact System Terminal Envelope: Custom-engineered to shield high-reliability 2.8mm flat box female receptacle terminals (accepts TE MCP 2.8 and Junior Power Timer series contacts)

- Connector Style: Receptacle Housing for Female Sockets (Free-Hanging Wire Loom Ignition Coil or Engine Sensor Interface Plug)

- Fastening & Locking Architecture: Features a top-mounted integrated plastic thumb lever latch paired with a high-visibility pink/purple internal secondary terminal retention locking slide

- Environmental Sealing Level: High-performance waterproof, dustproof, and oil-resistant isolation utilizing a pre-installed internal rubber perimeter interface seal ring and individual single-wire rubber cavity seals (SWS)

- Base Structural Compound: Premium Glass-Fiber Reinforced Polyamide engineering polymer for maximum structural impact stiffness, chemical deflection, and robust dimensional thermal memory under hood

- Color Profile: Factory Standard Deep Black outer housing assembly block accented with a distinctive pink/purple internal secondary locking plate

- Circuit Rating Threshold: Form-fitted for high-integrity low-to-medium voltage primary ignition triggers and sensory monitoring loops operating safely within standard MCP 2.8 current thresholds

- Wire Gauge Range Accommodation: Form-fitted for standard automotive low-voltage cross-sections from 0.50mm² up to 1.00mm² (20-18 AWG) for signal runs, and up to 1.50mm² to 2.50mm² (16-14 AWG) for primary ground/power paths

- Target Female Terminal Contacts (Not Included): Precision optimized to accept genuine VAG or compatible open-barrel female 2.8mm crimp sockets (typically cross-referenced with VAG wire profiles 000 979 141 E or 000 979 237 E; requires individual cavity single-wire rubber cable seals to preserve full waterproof isolation)

- Mating Counterpart Interface: Pairs seamlessly directly onto factory engine-side device headers (including Bosch, Eldor, and Beru factory ignition coil pack pins)

- Commercial Access: Available as loose individual housing shells, convenient trade-pack workshop refill boxes, complete pigtail repair sub-assemblies, or bulk trade logistics runs. Tiered B2B wholesale trade volume pricing breaks apply instantly inside your basket for independent garages, auto-electrical specialists, and trade stockists.