Bosch 7411 Spark Plug

Bosch Nickel Spark Plug for Audi V8 Applications

Bosch 7411 is a conventional nickel-copper spark plug built for steady ignition performance and OE-style service life. It uses a nickel center electrode with a copper core, a ceramic insulator, and a resistor design to support consistent spark delivery in the Audi A8, Audi A8 Quattro, and Audi V8 Quattro applications listed below.

The Bosch Nickel line focuses on practical replacement value with construction that meets or exceeds original equipment specifications for nickel-copper core spark plugs. Part number 7411 is supplied with a preset gap, so it is ready for the specified applications without adjustment.

Key Features

• Nickel center electrode with copper core for durable ignition performance
• Resistor spark plug design with 5000 resistance
• Preset 1.6 gap for listed Audi applications
• Multiple ground electrode design with four ground electrodes
• Tapered seat, 14 mm thread diameter, and 17.5 reach
• Ceramic insulator and non-projected insulator type
• Heat range 7 for OE-style replacement use

Detailed Description

Bosch 7411 is a 4-cycle spark plug from the Bosch Nickel product line, engineered for drivers who need a direct replacement ignition component with conventional nickel-copper construction. The nickel center electrode and nickel ground electrode tip work with the copper core to support stable combustion and reliable spark transfer in secondary ignition systems. This part number is a practical choice for Audi A8, Audi A8 Quattro, and Audi V8 Quattro models where the factory specification calls for a nickel-copper style plug with a preset gap.

Fits 1997-1999 Audi A8, N/A. Fits 1997-1999 Audi A8 Quattro, N/A. Fits 1990-1994 Audi V8 Quattro, N/A. Bosch 7411 is built to match the listed OE-style requirements, including tapered seat construction and preset gap configuration.

Common Issues This Part May Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weakened ignition output
• Misfire conditions related to aged secondary ignition components
• Reduced throttle response from inconsistent spark delivery
• Service replacement for plugs that no longer meet factory gap and heat specifications

Installation Notes and Tips

Use Bosch 7411 only on the listed Audi applications and follow the vehicle service specification for ignition service. The gap is preset, so do not gap this plug before installation. Verify thread size, reach, seat type, and heat range against the engine specification before installation, and inspect the ignition system for wear if misfire symptoms are present.

Quality Assurance

Bosch designs this Nickel spark plug to meet or exceed original equipment specifications for nickel-copper core spark plugs. The conventional construction, resistor design, and OE-style dimensions support consistent replacement quality for the listed Audi fitments.