Bosch 7992 Spark Plug

Overview of Bosch Nickel Spark Plug 7992

The Bosch Nickel Spark Plug 7992 is engineered for reliable secondary ignition performance in select Honda, Maserati, and Porsche vehicles. Designed with precision attributes, this spark plug supports efficient combustion and consistent engine operation for models like the Honda Prelude, Maserati 228i, and Porsche 911 and 944.

• Resistance: 6000 ohms for noise suppression
• Ground Electrode Tip Design: Tapered v-profile for optimized spark
• Pre-Gap Size: 0.8 mm for precise ignition timing
• Center Electrode Core Material: Nickel-yttrium and copper for durability
• Seat Type: Flat for secure installation
• Thread Diameter: 14 mm with 19 mm reach
• Hex Size: 20.8 mm for standard tool compatibility
• Manufacturer Heat Range: 5 suitable for moderate engine temperatures
• Insulator Material: Ceramic with non-projected design
• Resistor included to reduce electromagnetic interference

Detailed Product Description

The Bosch Nickel Spark Plug 7992 belongs to the Nickel product line, which focuses on durable nickel-based electrode materials to provide consistent ignition performance in 4-cycle engines. The center electrode combines nickel-yttrium and copper, enhancing conductivity and wear resistance, while the ground electrode tip is crafted from nickel with a tapered v-profile to improve spark exposure and combustion efficiency. The spark plug features a flat seat type and a 14 mm thread diameter with a 19 mm reach, ensuring compatibility with specific engine designs. Its 6000 ohm resistance resistor helps minimize radio frequency interference, supporting stable engine electronics operation.

Compatible Vehicles and Applications

This spark plug is compatible with various models, including the Honda Prelude, Maserati 228i, and Porsche 911 and 944. It is designed specifically for 4-cycle engines requiring a heat range 5 spark plug with the specified dimensions and electrode configuration.

• Improves ignition reliability in Honda Prelude and Maserati 228i engines
• Supports consistent combustion in Porsche 911 and 944 models
• Reduces misfires and rough idling caused by worn spark plugs
• Helps maintain fuel efficiency and engine responsiveness
• Minimizes electromagnetic interference affecting vehicle electronics

Installation Notes and Tips

When installing the Bosch Nickel Spark Plug 7992, ensure the pre-gap size of 0.8 mm is maintained for optimal ignition performance. Use a 20.8 mm socket for proper torque application and verify the flat seat type matches the engine’s cylinder head design. The 19 mm reach must be compatible with the engine to avoid damage or improper combustion. Always replace spark plugs in sets as recommended by the vehicle manufacturer.

Quality Assurance and Warranty

Bosch manufactures the Nickel Spark Plug 7992 to meet strict quality standards, using high-grade ceramic insulators and nickel-based electrodes for durability and consistent performance. The resistor built into the plug reduces electromagnetic interference, supporting vehicle electronics. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed quality assurance to ensure reliability in compatible Honda, Maserati, and Porsche vehicles.