Bosch 7980 Spark Plug

Bosch Nickel Spark Plug 7980 Overview

Bosch 7980 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, plus a tapered V-profile ground electrode to support consistent spark delivery in a wide range of older GM and Ford applications.

The Bosch Nickel line focuses on OE-style replacement coverage for vehicles such as the Buick Century, Chevrolet Lumina, and Pontiac Grand Prix. If you need a direct-fit secondary ignition service part for a 4-cycle engine, Bosch 7980 is built around factory-style dimensions and a resistor design for stable operation.

Key Features

• Conventional nickel-copper spark plug construction
• Nickel-ytrium center electrode with copper core for durability
• Tapered V-profile ground electrode design
• Resistor spark plug for ignition system noise control
• Non-projected ceramic insulator design
• OE-style dimensions including 14 mm thread diameter, 17.5 mm reach, and tapered seat
• Pre-gapped at 1.5 mm

Detailed Product Description

Bosch 7980 is engineered as a practical replacement spark plug for drivers maintaining older ignition systems. The nickel-ytrium center electrode and copper core help deliver dependable spark performance, while the tapered V-profile ground electrode supports efficient ignition across everyday driving conditions. With a 6000 ohm resistance value and ceramic insulation, this plug is built to match common OE requirements in secondary ignition service.

Fitment coverage includes long-tail applications such as Fits 2005-2009 Buick LaCrosse, N/A; Fits 1991-1995 Pontiac Grand Prix, N/A; and Fits 1991-1995 Chevrolet Lumina, N/A. Bosch 7980 also applies to vehicles like the Buick Century, Chevrolet Cavalier, and Pontiac Trans Sport where a nickel replacement spark plug is specified. This part cross-references common OE-style spark plug applications for the same vehicle families.

What This Spark Plug Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weakened ignition output
• Misfire symptoms related to aged secondary ignition components
• Reduced throttle response from inconsistent spark delivery
• Maintenance replacement for factory-style nickel spark plug service intervals

Installation Notes and Tips

Verify the specified gap and thread reach before installation, especially on vehicles with OE gap requirements listed in the fitment notes. Confirm the tapered seat style matches the cylinder head design, and inspect ignition wires or coil components during spark plug service to avoid repeat misfire concerns. For best results, install Bosch 7980 only in applications listed in the fitment data.

Quality Assurance

Bosch designs this Nickel line to meet or exceed original equipment specifications for nickel-copper core spark plugs. The part number 7980 is built to OE-style dimensions and materials for consistent service in approved applications.