Bosch 8519 Spark Plug

Reliable Ignition Performance for Audi and Volkswagen Vehicles

The Bosch EVO 8519 spark plug is engineered to deliver consistent ignition and efficient combustion for select Audi and Volkswagen models. Designed with advanced materials and precise specifications, this spark plug supports optimal engine performance and durability.

• Part Number: 8519
• Brand Line: Bosch EVO
• Compatible with Audi A3 Sportback e-tron and Volkswagen Golf, Golf SportWagen, Jetta
• Iridium center electrode tip for enhanced ignition
• Platinum ground electrode tip with tapered J-gap design
• Copper core electrodes for improved conductivity
• Resistor type spark plug with 1000 ohm resistance
• Flat seat type with 16 mm hex size and 20.5 mm reach
• Ceramic insulator with projected insulator type
• Pre-gap size of 0.75 mm for precise spark gap

About the Bosch EVO Spark Plug Line

The Bosch EVO line focuses on delivering advanced ignition components that combine durability and performance. The EVO spark plugs utilize fine wire iridium center electrodes and platinum ground electrodes to provide reliable spark delivery and longer service life. This line is designed to meet the demands of modern 4-cycle engines, such as those found in Audi and Volkswagen vehicles, ensuring consistent combustion and fuel efficiency.

Technical Details and Features

The Bosch EVO 8519 spark plug features a fine wire iridium center electrode tip paired with a platinum ground electrode tip, both supported by copper cores to enhance electrical conductivity and heat dissipation. The tapered ground electrode with a J-gap configuration optimizes spark exposure for efficient ignition. The spark plug includes a 1000 ohm resistor to reduce electrical noise and protect vehicle electronics. Its ceramic insulator with a projected design improves insulation and heat management. The flat seat and 16 mm hex size facilitate proper installation and secure fitment. With a manufacturer heat range of 5 and a 0.75 mm pre-gap, this spark plug is engineered for stable performance in compatible Audi and Volkswagen models.

Compatible Vehicles and Common Applications

• Designed for Audi A3 Sportback e-tron ignition systems
• Suitable for Volkswagen Golf and Golf SportWagen engines
• Compatible with Volkswagen Jetta 4-cycle engines
• Addresses ignition misfires and rough idling issues
• Helps improve fuel efficiency and engine responsiveness

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.75 mm before installation. Use a 16 mm spark plug socket for proper torque application. Verify the flat seat type matches the engine’s cylinder head design to prevent compression leaks. Avoid over-tightening to protect the ceramic insulator and threads. It is recommended to replace spark plugs at manufacturer-recommended intervals to maintain optimal engine performance.

Quality Assurance and Warranty

Bosch spark plugs, including the EVO 8519, are manufactured to meet strict quality standards for durability and performance. The use of premium materials such as iridium and platinum ensures extended service life. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Audi and Volkswagen vehicles.