Overview
Broken coil pack harness connector clips? Be sure to check which harness connectors you have and select 8K0 or 4D0 accordingly. Part number if on the back of the harness connector.
We recommend taking advantage and add a coil grounding kit while the harness connectors are apart.
The Volkswagen 4D0 971 994 and 8K0 971 994 is a genuine OEM 4-pin electrical connector housing used throughout a wide range of Volkswagen and Audi vehicles. Designed to OEM specifications, it provides a secure, weather-resistant connection for various engine management and electrical components, making it an ideal replacement for damaged or brittle factory connectors.
On many modern VW and Audi applications, this connector is commonly used for ignition coil connectors, although it is also found on other engine sensors and electrical components depending on the vehicle and engine configuration. Replacing a cracked or broken connector helps restore a reliable electrical connection and prevents intermittent faults caused by poor terminal contact.
Details
- Genuine Volkswagen/Audi OEM Part – Part Number 4D0 971 994 & 8K0 971 994
- 4-Pin Electrical Connector Housing
- Direct Replacement – Restores damaged, cracked, or brittle factory connector housings.
- Commonly Used for Ignition Coil Connectors – Frequently found on EA888 and other Volkswagen/Audi engine applications. Fitment varies by vehicle.
- OEM Fit & Finish – Matches the factory connector for proper locking and terminal retention.
- Durable Construction – Designed to withstand engine bay heat, vibration, and exposure to the elements.
- Ideal for Wiring Repairs – Perfect for repairing broken connector housings without replacing the entire engine harness.
- Compatible with OEM Repair Terminals – Accepts the appropriate Volkswagen/Audi repair wires and terminals for a professional-quality repair.
Note: This listing is for the connector housing only. Repair wires, terminals, seals, and locking clips (where applicable) are typically sold separately. Always verify fitment for your specific vehicle and application before ordering.
Fitment
The easiest way to identify which one you need is to unplug one ignition coil connector and inspect the molded part number on the underside. The first three characters will be either 8K0 or 4D0. Vehicle model year alone is not a reliable indicator, as Volkswagen used both connectors during production depending on the harness supplier.
This part is compatible with the following vehicles
| Years | Make | Model | Engine | Trim |
|---|---|---|---|---|
| 2014-2015 | Volkswagen | Passat (NMS) | 1.8T | All |
| 2015-2016 | Audi | S3 | 2.0T | All |
| 2015-2017 | Volkswagen | GTI | 2.0T | All |
| 2015-2017 | Volkswagen | Golf R | 2.0T | All |
| 2015-2020 | Audi | A3 | 2.0T | All |
| 2018-2019 | Volkswagen | Golf R | 2.0T | All |
| 2018-2021 | Volkswagen | GTI | 2.0T | All |
| 2019-2021 | Volkswagen | Jetta GLI | 2.0T | All |
| 2019-2021 | Volkswagen | Jetta | 1.4T | All |
| 2022-2024 | Volkswagen | Jetta GLI | 2.0T | All |
| 2022-2024 | Volkswagen | Jetta | 1.5T | All |
