Bosch 7415 Spark Plug

Bosch Nickel Spark Plug for OE-Style Ignition

Bosch 7415 is a conventional nickel-copper spark plug built for steady ignition performance and value. It uses a nickel-ytrium center electrode with a copper core, a projected ceramic insulator, and a resistor design to meet or exceed original equipment specifications for nickel-copper spark plugs.

Compatible With Volkswagen Golf, Volkswagen Jetta, Volkswagen Cabriolet, Volkswagen Quantum, Audi 90, and Audi 4000 applications listed below, Bosch 7415 is a direct-fit secondary ignition service part for older European vehicles that call for a flat-seat, 14 mm spark plug with a preset gap.

Key Features

• Bosch Nickel line spark plug for OE-style replacement service
• Nickel-ytrium center electrode with copper core for durable spark delivery
• Resistor plug design with 6000 resistance rating
• Projected ceramic insulator for stable combustion chamber exposure
• Flat seat, 14 mm thread diameter, 19 mm reach, and 20.8 mm hex size
• Multiple ground electrode design with three ground electrodes
• Manufacturer heat range 7
• Preset gap; do not gap before installation on listed applications

Product Details

Bosch 7415 is engineered as a conventional 4-cycle spark plug for secondary ignition service in select Audi and Volkswagen models. The nickel-ytrium center electrode and copper core construction is used to balance service life and ignition performance, while the multiple ground configuration supports consistent spark exposure. This Bosch Nickel spark plug is a practical choice for drivers servicing older Audi 4000, Audi 90, Volkswagen Cabriolet, Volkswagen Quantum, Volkswagen Jetta, and Volkswagen Golf ignition systems that specify a nickel-copper style plug.

This part cross-references common OE-style spark plug applications for the same vehicle families, including Bosch 7415 and equivalent nickel-copper service references where specified by the vehicle application.

What It Helps Address

• Misfires caused by worn or fouled spark plugs
• Hard starting from weak ignition output
• Rough idle and inconsistent combustion
• Reduced throttle response from aged secondary ignition components
• Maintenance replacement for preset-gap OE-style spark plug service

Installation Notes and Fitment

• Fits 1993-1998 Volkswagen Golf, N/A; Do Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; Nickel
• Fits 1993-1995 Volkswagen Jetta, N/A; Do Not Gap, Gap is Preset; Original Center Electrode Material is Copper/Nickel; Nickel
• Fits 1985-1989 Volkswagen Cabriolet, N/A; Do Not Gap, Gap is Preset; with External Resistor; Original Center Electrode Material is Copper/Nickel; Nickel
• Fits 1988 Audi 90, N/A; Nickel
• Fits 1985-1987 Volkswagen Quantum, N/A; Do Not Gap, Gap is Preset; with External Resistor; Original Center Electrode Material is Copper/Nickel; Nickel
• Fits 1986 Volkswagen Jetta, N/A; Do Not Gap, Gap is Preset; with External Resistor; Original Center Electrode Material is Copper/Nickel; Nickel
• Fits 1984 Audi 4000, N/A; Nickel
• Fits 1982-1983 Audi 4000, N/A; Do Not Gap, Gap is Preset; with External Resistor; Original Center Electrode Material is Copper/Nickel; Nickel

Verify the vehicle’s original spark plug specification before installation. Bosch 7415 is a preset-gap plug, so the gap should not be adjusted on applications that call for the factory setting. Confirm thread diameter, reach, seat type, and heat range match the engine requirements before service.

Quality Assurance

Bosch designs this Nickel spark plug to meet or exceed original equipment specifications for nickel-copper core spark plugs. The construction uses a ceramic insulator, resistor design, and nickel-ytrium/copper core materials to support consistent ignition service in the listed Audi and Volkswagen applications.