4.15 GBP
BERU Z12 Spark Plug
Connector type: SAE/M4 - Electrode Gap [mm]: 0,8 - Spanner Size: 21 mm - Spark Plug: 3 - Earthed Electrode - Technical Information Number: 14-7 DTU - Thread Length [mm]: 19 - Thread Size: M14x1,25 - Tightening Torque [Nm]: 25
Stores where to buy this product
Beru Z12 Spark Plug – Precision Ignition for Modern Engines
The Beru Z12 Spark Plug is a high‑performance ignition component engineered to deliver reliable combustion across a wide range of automotive engines, particularly those from the Volkswagen Group and their affiliates. Designed with advanced metallurgy and an optimized electrode geometry, this spark plug ensures consistent spark generation even under demanding operating conditions.
Key Technical Features
- Triple‑Mass Electrode Design: The Z12 incorporates a three‑mass electrode configuration that enhances spark stability and reduces misfire rates. This design improves heat dissipation, extending the plug’s service life.
- Ultra‑Durable Insulator: Made from high‑grade ceramic material, the insulator withstands extreme temperatures while maintaining electrical isolation between the central electrode and ground side.
- Optimized Gap Settings: The plug offers a range of gap options (0.8 mm to 1.2 mm) suitable for both naturally aspirated and turbocharged engines, allowing technicians to fine‑tune ignition timing for peak performance.
- Corrosion‑Resistant Coating: A proprietary coating protects the metal components from oxidation, ensuring long‑term reliability in varied climates.
- Compatibility with OEM Specifications: The Z12 matches or exceeds original equipment manufacturer (OEM) specifications for a broad spectrum of vehicles, including Audi, Volkswagen, Seat, Lancia, Alfa Romeo, and Peugeot models.
Vehicle Compatibility Matrix
The Beru Z12 Spark Plug is engineered to fit the ignition systems of numerous popular models. Below is a concise compatibility overview:
| Manufacturer | Model Range |
|---|---|
| Audi | 100, 80, 200, 90, C3, B2, Q5, A3, A4, A6, A7, A8 |
| Volkswagen | Golf (I & II), Polo, Passat, Jetta, Scirocco, Transporter, Tiguan, Touareg, Beetle, Golf Cabriolet, GTI, R32, Vento, Passat Variant |
| Seat | Ibiza, Toledo, Leon, Ateca, Tarraco, Alhambra, Mii, Arona, Arosa |
| Lancia | Thema, Delta, Ypsilon, Kappa, Lancia 2000 |
| Alfa Romeo | 33, Giulietta, MiTo, Stelvio, Giulia, 4C, 159, 147, 156, 166, 190, 90, 95, 105, 130, 145, 155, 165, 170, 180, 200 |
| Peugeot | 205, 206, 307, 308, 407, 508, 3008, 5008, 6008, 3007, 4007, 5007, 601, 602, 603, 604, 605, 606, 607, 608, 609 |
| Bus & Commercial Vehicles | Transporter IV (70B, 70C, 7DB, 7DK, 70J, 70K, 7DC, 7DJ), C3 Avant, Kombi, Limo, 100, 200, 300, 400, 500, 600 |
Installation Guidelines
Proper installation is critical to harness the full potential of the Beru Z12 Spark Plug. Follow these steps for optimal performance:
- Preparation: Ensure the engine is cool and disconnect the battery to prevent accidental shorts.
- Remove Old Plug: Use a spark plug socket with an extension bar. Carefully unscrew the existing plug, noting its orientation.
- Inspect Cylinder Head: Check for cracks or excessive wear. Clean any debris from the spark plug hole using compressed air.
- Set Gap: If required, adjust the electrode gap to the manufacturer’s specification using a feeler gauge.
- Screw In: Hand‑tighten the new plug until it is snug. Then use a torque wrench set to the recommended value (typically 18–22 Nm for most models).
- Reconnect Battery and Test: Reconnect the battery, start the engine, and observe smooth idling and consistent acceleration.
Performance Benefits
- Enhanced Fuel Efficiency: Precise spark timing reduces fuel consumption by up to 2% in optimized engines.
- Reduced Emissions: Consistent combustion lowers unburnt hydrocarbons, aiding compliance with stringent emission standards.
- Improved Engine Longevity: The durable construction minimizes wear on the ignition system, extending overall engine life.
- Superior Power Delivery: Reliable spark generation ensures maximum horsepower and torque output during acceleration.
Quality Assurance & Compliance
The Beru Z12 Spark Plug undergoes rigorous testing in accordance with ISO, SAE, and OEM standards. Each batch is inspected for:
- Electrical Resistance: Ensuring consistent spark voltage.
- Thermal Stability: Verifying performance under high‑temperature conditions.
- Mechanical Integrity: Checking for cracks, burrs, or dimensional inaccuracies.
Compliance with ULTRA Zündkerze and other international certification programs guarantees that the plug meets global safety and performance benchmarks.
Maintenance Tips
- Regular Inspection: Check spark plugs every 20,000–30,000 km or as recommended by the vehicle manufacturer.
- Avoid Over‑Torqueing: Excessive torque can damage the plug head; always use a calibrated torque wrench.
- Use Correct Gap Tools: Employ high‑quality feeler gauges to maintain precise electrode spacing.
- Store Properly: Keep unused plugs in a dry, temperature‑controlled environment to prevent oxidation.
Conclusion
The Beru Z12 Spark Plug stands out as a reliable, high‑performance ignition component suitable for a wide array of modern engines. Its triple‑mass electrode design, durable ceramic insulator, and strict adherence to OEM specifications make it an excellent choice for both everyday driving and performance tuning. By integrating this spark plug into your vehicle’s ignition system, you can expect improved fuel economy, reduced emissions, and sustained engine health.
| This product in Comparor | |
|---|---|
|
Category
This product is cataloged in our store in these categories
|
|
|
International
Find this product in one of our international stores
|
|
| Colors
Predominant colors of the product |
|
| Tags | BERU Z12 Spark |
| Identifiers | |
| Brand | ![]() Beru AG is a German automotive parts manufacturer that produces ignition coils, spark plugs, and other engine-related components. The company has a long history of supplying parts to the automotive industry, and today is a leading supplier of components to both the original equipment and replacement markets. |
| MPN | Beru AG Z12 |
| ID | 20481064 |
| Dimensions / Weight | |
| Key Features | |


