Bosch 79079 Spark Plug

Bosch Nickel Spark Plug 79079 Overview

Bosch 79079 is a conventional nickel-copper spark plug built for steady ignition performance and OE-style service life. It uses a nickel-ytrium center electrode with a copper core, a ceramic insulator, and a preset 1.6 mm gap for direct replacement service.

For drivers searching for a Bosch spark plug for Volvo C30, Volvo S40, or Volvo V50 applications, this part number 79079 is engineered to meet or exceed original equipment specifications for nickel-copper core spark plugs.

Key Features

• Brand: Bosch Nickel line
• Part number: 79079
• Conventional nickel-copper spark plug design
• Nickel-ytrium center electrode with copper core
• Resistor plug with 6000 resistance
• Preset 1.6 mm gap; do not gap before installation
• Flat seat, 14 mm thread diameter, 16 mm hex size
• Non-projected ceramic insulator
• Four ground electrodes with multiple tip and ground configurations

Product Details

Bosch Nickel 79079 is built for 4-cycle ignition systems that call for a conventional nickel-copper spark plug with a preset gap. The nickel-ytrium electrode materials and copper core are used to support consistent spark delivery and durable service in everyday driving. This Bosch spark plug is a direct-fit style choice for Volvo C30, Volvo S40, and Volvo V50 models listed below, and the part number 79079 should be matched to the vehicle’s original plug specification before installation.

Compatible With: Fits 2007-2010 Volvo C30, N/A; Fits 2004-2010 Volvo S40, N/A; Fits 2005-2010 Volvo V50, N/A. This part cross-references no listed aftermarket part numbers for the same application.

Common Reasons to Replace

• Hard starting or extended crank time
• Rough idle or inconsistent combustion
• Misfire codes related to worn ignition components
• Reduced throttle response from aged spark plugs
• Service interval replacement on Volvo C30, Volvo S40, or Volvo V50 ignition systems

Installation Notes

Verify the engine calls for a 14 mm, flat-seat spark plug with a 1.6 mm preset gap before installation. Do not re-gap this plug. Confirm the heat range, reach, and thread diameter match the original specification, and inspect the ignition system for wear or contamination that could affect plug performance.

Quality Assurance

Bosch designs this Nickel line spark plug to meet or exceed original equipment specifications for nickel-copper core applications. The 79079 part number reflects Bosch’s OE-focused approach to ignition service parts for Volvo C30, Volvo S40, and Volvo V50 applications.