Bosch F6DTC Spark Plug

Bosch Nickel Spark Plug for OE-Style Ignition

Bosch F6DTC is a conventional nickel-copper spark plug built for steady ignition performance and value. It uses a heavy-duty yttrium-enhanced nickel center electrode with a copper core, and it is engineered to meet or exceed original equipment specifications for nickel-copper core spark plugs.

For drivers servicing older Audi and Volkswagen applications, Bosch F6DTC provides a direct replacement style with preset gap and standard construction. It is a practical choice for routine ignition service on vehicles such as the Audi 100, Audi 90 Quattro, and Volkswagen Jetta.

Key Features

• Bosch Nickel line spark plug for secondary ignition service
• Nickel center electrode with copper core for durable spark delivery
• Yttrium-enhanced center electrode design for extended service life
• Preset .8 gap; do not gap before installation
• Standard ground electrode tip design with multiple ground configuration
• Non-projected ceramic insulator and flat seat design
• 4-cycle spark plug construction with 14 mm thread diameter and 19 mm reach
• Compatible with select Audi and Volkswagen applications, including Bosch F6DTC fitments

Detailed Description

The Bosch Nickel product line focuses on conventional spark plugs that balance dependable ignition performance with OE-style fitment. Bosch F6DTC uses a nickel tip and nickel-copper core construction, along with a multiple-ground electrode layout, to support consistent spark delivery in older engine designs. The preset gap and standard configuration make it a straightforward replacement for service intervals where the original plug specification calls for a nickel-copper type.

Fitment includes 1992-1993 Audi 100, 1992-1993 Audi 100 Quattro, 1993 Audi 90, 1993 Audi 90 Quattro, 1990-1991 Audi 90 Quattro, 1992 Audi 90 Quattro, 1990-1991 Audi Coupe Quattro, 1987-1989 Volkswagen Golf, and 1987-1989 Volkswagen Jetta. This part cross-references no listed alternate part numbers for the same application.

What It Helps Address

• Hard starting caused by worn spark plug electrodes
• Rough idle from inconsistent ignition output
• Misfire concerns related to aged secondary ignition components
• Reduced throttle response from degraded spark quality
• Service replacement for OE-style nickel-copper spark plug applications

Installation Notes and Tips

Install Bosch F6DTC at the preset gap; do not adjust the gap before use. Verify the engine calls for a flat-seat, 14 mm thread, 19 mm reach, and non-projected 4-cycle spark plug before installation. Confirm the vehicle application against the listed Audi and Volkswagen fitments, including the specific model year and engine specification.

Quality Assurance

Bosch engineers this spark plug to meet or exceed original equipment specifications for nickel-copper core applications. The nickel center electrode, copper core, and ceramic insulator are selected for conventional ignition service in compatible Audi and Volkswagen vehicles.