Bosch 7426 Spark Plug

Overview of Bosch OE Fine Wire Double Platinum Spark Plug 7426

The Bosch OE Fine Wire Double Platinum Spark Plug 7426 is engineered for reliable ignition performance in select Audi, Bentley, Mitsubishi, and Volkswagen models. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Double platinum electrodes for enhanced durability and stable spark
• 6000 ohm resistor to reduce electrical interference
• Standard ground electrode tip and configuration for OEM compatibility
• Pre-gapped to 0.7 mm for optimal ignition timing
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Ceramic non-projected insulator for heat resistance and electrical insulation
• Hex size 16 mm for standard installation tools
• Manufacturer heat range 7 suitable for moderate engine temperatures

Detailed Product Description and Attributes

This Bosch spark plug features a center electrode tip made of platinum, supported by a nickel-yttrium and copper core, which ensures consistent conductivity and longevity. The ground electrode tip combines platinum and nickel-yttrium materials, providing wear resistance and stable spark gaps over time. The spark plug includes a 6000 ohm resistor to minimize radio frequency interference, protecting vehicle electronics. Its flat seat design and 14 mm thread diameter with a 19 mm reach make it compatible with specific OEM engine configurations. The ceramic insulator is non-projected, enhancing durability and heat dissipation. Pre-gapped at 0.7 mm, this spark plug is ready for installation without additional adjustment.

OE Fine Wire Double Platinum Product Line

The OE Fine Wire Double Platinum line by Bosch is designed to meet or exceed original equipment specifications for ignition components. This product line utilizes fine wire platinum electrodes on both the center and ground electrodes, which improves ignition reliability and extends service life compared to conventional spark plugs. The double platinum design is particularly suited for vehicles requiring precise ignition timing and durability under varied driving conditions.

Compatible Vehicles and Common Applications

• Compatible with Audi models including A4, A4 Quattro, A6 Quattro, Allroad Quattro, S4, TT, and TT Quattro
• Fits Bentley Continental
• Suitable for Mitsubishi Eclipse
• Compatible with Volkswagen Beetle, Golf, Jetta, and Passat

Common Issues Addressed by Bosch Spark Plug 7426

• Engine misfires due to worn or fouled spark plugs
• Reduced fuel efficiency from inconsistent ignition
• Difficulty starting the engine in cold or damp conditions
• Rough idling or hesitation during acceleration
• Electrical interference affecting vehicle electronics

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.7 mm before installation if adjustment is needed
• Use a 16 mm socket wrench for proper tightening
• Apply anti-seize compound sparingly on threads if recommended by vehicle manufacturer
• Torque to manufacturer specifications to avoid damage to the spark plug or cylinder head
• Inspect ignition coils and wires for wear during replacement

Quality Assurance and Warranty

Bosch OE Fine Wire Double Platinum Spark Plug 7426 is manufactured to meet strict OEM standards for fit, form, and function. The use of high-quality materials such as platinum electrodes and ceramic insulators ensures durability and consistent performance. While specific warranty details may vary, Bosch products typically come with a limited warranty covering defects in materials and workmanship.