Bosch 79003 Spark Plug

Overview of Bosch Nickel Spark Plug 79003

The Bosch Nickel Spark Plug 79003 is engineered for reliable ignition performance in select Mercedes-Benz vehicles. Designed specifically for models like the C230 and S320, this spark plug ensures consistent engine operation and efficient combustion.

• Resistance: 6000 ohms for optimal electrical noise suppression
• Ground Electrode Tip Design: Standard with multiple ground electrodes
• Pre-Gap Size: 1 mm for precise spark delivery
• Ground Electrode Quantity: 3 for improved spark stability
• Hex Size: 16 mm for easy installation
• Manufacturer Heat Range: 8 suitable for moderate engine temperatures
• Seat Type: Flat for secure fitment
• Reach: 19 mm thread length
• Thread Diameter: 14 mm compatible with specified Mercedes-Benz engines
• Center Electrode Core Material: Nickel-yttrium and copper for durability
• Center Electrode Tip Material: Nickel-yttrium
• Ground Electrode Tip Material: Nickel
• Insulator Material: Ceramic with non-projected design
• Resistor: Yes, to reduce electromagnetic interference
• Designed for 4-cycle engines

About the Bosch Nickel Product Line

The Bosch Nickel line focuses on spark plugs that utilize nickel-based electrode materials to provide reliable ignition and consistent performance. This product line balances durability and cost-effectiveness, making it suitable for a range of vehicles including Mercedes-Benz models like the C230 and S320. The Nickel spark plugs are designed to meet OEM specifications, ensuring compatibility and dependable operation.

Detailed Product Description

The Bosch 79003 spark plug features a triple ground electrode configuration with nickel tips, enhancing spark stability and combustion efficiency. Its 6000-ohm resistance resistor helps minimize radio frequency interference, protecting vehicle electronics. The ceramic insulator with a non-projected design improves heat dissipation and prevents misfires. With a 1 mm pre-gap and a heat range of 8, this spark plug is optimized for moderate engine temperatures commonly found in Mercedes-Benz C230 and S320 models. The 16 mm hex size and 19 mm reach facilitate straightforward installation and secure fitment in the engine cylinder head.

Applications and Problem Solving

• Compatible with Mercedes-Benz C230 and S320 ignition systems
• Addresses engine misfires caused by worn or faulty spark plugs
• Reduces electromagnetic interference affecting vehicle electronics
• Improves fuel combustion efficiency and engine responsiveness
• Helps maintain smooth engine idle and acceleration performance

Installation Notes and Tips

• Ensure the spark plug gap is set to 1 mm before installation
• Use a 16 mm socket wrench for proper torque application
• Verify the flat seat type matches the engine cylinder head design
• Apply anti-seize compound on threads if recommended by vehicle manufacturer
• Replace spark plugs in sets of six for Mercedes-Benz models requiring multiple cylinders

Quality Assurance

Bosch spark plugs, including the 79003 model, are manufactured to meet strict OEM standards for fit, form, and function. The use of nickel-yttrium and copper materials in the electrodes ensures durability and consistent performance. This spark plug includes a built-in resistor to reduce electromagnetic interference, supporting vehicle electronic system integrity. While specific warranty details depend on the point of purchase, Bosch products typically come with manufacturer-backed quality guarantees.