Bosch 79002 Spark Plug

Reliable Spark Plug for Nissan and Toyota Vehicles

The Bosch Nickel 79002 spark plug is engineered to deliver consistent ignition performance for select Nissan and Toyota models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 6000 ohms for optimal electrical noise suppression
• Ground Electrode Tip Design: Tapered with v-groove for improved spark exposure
• Center Electrode Core Material: Nickel-yttrium and copper for enhanced conductivity
• Pre-Gap Size: 1 mm, factory set for proper ignition timing
• Thread Diameter: 14 mm with 19 mm reach for secure fitment
• Seat Type: Flat to ensure proper sealing in the combustion chamber
• Hex Size: 16 mm for standard installation tools
• Manufacturer Heat Range: 8, suitable for moderate to high operating temperatures
• Insulator Material: Ceramic with a non-projected design for durability

About the Bosch Nickel Spark Plug Line

The Bosch Nickel product line focuses on spark plugs that utilize nickel-based electrode materials, providing a balance of durability and conductivity. The Nickel 79002 spark plug features nickel-yttrium and copper in the center electrode core and nickel in the ground electrode tip, which supports stable ignition and consistent performance in 4-cycle engines. This line is designed to meet OEM specifications for vehicles requiring reliable secondary ignition components.

Detailed Product Description

The Bosch 79002 spark plug is designed for secondary ignition systems in 4-cycle engines, compatible with Nissan and Toyota models such as the 4Runner, Celica, D21, MR2, Paseo, Pathfinder, Pickup, Quest, and Tacoma. Its tapered ground electrode with a v-groove enhances spark exposure, promoting efficient combustion. The resistor built into the plug reduces electromagnetic interference, protecting vehicle electronics. With a flat seat type and a 16 mm hex size, installation and sealing are straightforward and secure. The ceramic insulator ensures electrical insulation and heat resistance, while the heat range 8 rating suits engines operating under moderate to high temperatures.

Common Applications and Issues Addressed

• Restores proper ignition timing and spark delivery
• Reduces misfires and rough idling in compatible Nissan and Toyota models
• Improves fuel efficiency by ensuring complete combustion
• Minimizes electromagnetic interference affecting vehicle electronics
• Prevents fouling and electrode wear in standard ignition systems

Installation Notes and Tips

• Verify compatibility with your specific Nissan or Toyota model before installation
• Use a 16 mm socket wrench for proper torque application
• Check and maintain the pre-gap size of 1 mm if adjustment is necessary
• Ensure the spark plug threads and seat are clean to prevent cross-threading
• Follow manufacturer torque specifications to avoid damage

Quality Assurance and Warranty

Bosch manufactures the 79002 spark plug to meet strict OEM standards, ensuring reliable performance and durability. The use of nickel-yttrium and copper materials in the electrodes supports long service life. While specific warranty details may vary, Bosch products typically come with a limited warranty against manufacturing defects. Always consult Bosch or your vehicle’s service manual for warranty and maintenance guidelines.