5-Pin 3.5mm Waterproof MAF Sensor Connector for VW Golf Mk4 – OEM 1J0973775A

Direct OEM-specification replacement for the Volkswagen 5-way 3.5mm pitch waterproof female connector used in VW Golf Mk4 (1999–2001) mass airflow (MAF) sensor harness applications, cross-referencing part number 1J0973775A. The 1J0 prefix identifies this as a Golf Mk4 / Bora platform OEM part number.

Key Specifications

VW Golf Mk4 OEM Fitment: 1J0973775A

The 1J0973775A is the OEM MAF sensor connector for VW Golf Mk4 (1J) with 1.8T, 2.0, and TDI engines from 1999 to 2001. It is also used in the VW Bora and Audi A3 (8L) which share the Golf Mk4 platform. A common failure point in high-mileage Golf Mk4 vehicles, this connector is subject to heat cycling and vibration fatigue in the engine bay.

Common Vehicle Applications

• VW Golf Mk4 (1J) 1.8T / 2.0 / TDI – MAF sensor harness (1999–2001)
• VW Bora – mass airflow sensor wiring
• Audi A3 (8L) – shared Golf Mk4 platform MAF harness
• SEAT Leon Mk1 / Toledo Mk2 – shared VAG platform, verify OEM part number

Package Contents

1 × 5-Way Waterproof Female Connector Adapter (1J0973775A, 3.5mm pitch) with wire leads and terminal inserts pre-installed.

Frequently Asked Questions

Q: Which VW Golf Mk4 engines use the 1J0973775A MAF connector?
A: The 1J0973775A is used on VW Golf Mk4 1.8T (AGU, AUM), 2.0 (APK, AQY), and TDI (AGR, ALH) engines from 1999 to 2001. Cross-reference your vehicle’s VIN and engine code against the VW ETK catalogue to confirm fitment.

Q: Is the 1J0973775A compatible with aftermarket MAF sensors for Golf Mk4?
A: Yes, provided the aftermarket MAF sensor uses the same 5-pin VAG 3.5mm connector interface. Verify pin count and wire gauge against your sensor’s datasheet before installation.

Q: Is this connector compatible with Audi A3 (8L) and SEAT Leon Mk1?
A: The Audi A3 (8L) and SEAT Leon Mk1 share the Golf Mk4 platform and many connector standards. Verify the OEM part number against your vehicle’s ETK catalogue before ordering.