Bosch 79079 Spark Plug

Reliable Spark Plug for Volvo C30, S40, and V50 Models

The Bosch Nickel 79079 spark plug is engineered to deliver consistent ignition performance for select Volvo vehicles. Designed specifically for 4-cycle engines, this spark plug supports efficient combustion and reliable engine operation in Volvo C30, S40, and V50 models.

• Resistance: 6000 ohms for optimal electrical noise suppression
• Multiple ground electrode tip design with four ground electrodes
• Pre-gap size of 1.6 mm for precise spark delivery
• Flat seat type with a 16 mm hex size for secure installation
• Reach length of 26.5 mm and thread diameter of 14 mm
• Center and ground electrode tips made from nickel-yttrium alloy
• Ceramic non-projected insulator for durability and heat resistance
• Manufacturer heat range rating of 6 suitable for various driving conditions
• Resistor included to reduce electromagnetic interference

About the Bosch Nickel Spark Plug Line

The Bosch Nickel product line focuses on spark plugs with nickel-yttrium and copper core materials, providing a balance of durability and conductivity. The Nickel series spark plugs, including part number 79079, are designed to meet the ignition requirements of many European vehicles, offering reliable performance and consistent spark quality.

Technical Details and Performance Features

The Bosch 79079 spark plug features a multiple ground electrode configuration with four ground electrodes, enhancing spark exposure and improving ignition reliability. The nickel-yttrium alloy used in both the center and ground electrode tips offers resistance to wear and corrosion, extending the service life of the plug. The 1.6 mm pre-gap size is factory set to optimize spark efficiency, while the ceramic non-projected insulator ensures excellent heat dissipation and electrical insulation. With a heat range of 6, this spark plug is suitable for a range of operating temperatures commonly encountered in Volvo C30, S40, and V50 engines.

Compatible Applications and Common Issues Addressed

• Compatible with Volvo C30, S40, and V50 4-cycle engines
• Helps resolve misfires and rough idling caused by worn spark plugs
• Improves cold start performance and throttle response
• Reduces electromagnetic interference with built-in resistor
• Supports consistent combustion to prevent engine hesitation

Installation Notes and Tips

Ensure the spark plug gap is verified before installation, although the pre-gap is factory set at 1.6 mm. Use a 16 mm socket wrench for proper tightening to the recommended torque specifications for your Volvo model. Avoid over-tightening to prevent damage to the flat seat and threads. Inspect the spark plug threads and cylinder head for cleanliness before installation to ensure proper fit and sealing.

Quality Assurance and Warranty

Bosch spark plugs, including part number 79079, are manufactured to meet strict quality standards for durability and performance. The use of premium materials such as nickel-yttrium alloys and ceramic insulators ensures long service life. While specific warranty details are not provided, Bosch products typically adhere to industry standards for reliability and are backed by Bosch's reputation for quality automotive components.