Bosch 6708 Spark Plug

Reliable Ignition with Bosch OE Fine Wire Platinum Spark Plug

The Bosch OE Fine Wire Platinum Spark Plug 6708 is engineered to deliver consistent ignition performance for a range of GM vehicles. Designed with precision materials and specifications, this spark plug supports efficient combustion and engine reliability.

• Platinum center electrode tip for enhanced durability
• Tapered ground electrode tip design for optimal spark exposure
• 6000 ohm resistance resistor to reduce electrical noise
• Ceramic insulator with non-projected design for heat management
• Standard ground configuration with a single ground electrode
• Compatible with multiple Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models
• Pre-gap size of 1.3 mm and tapered seat type for precise fit
• Heat range 9 for balanced thermal performance

About the OE Fine Wire Platinum Product Line

The Bosch OE Fine Wire Platinum line focuses on delivering spark plugs with fine wire platinum electrodes that provide improved wear resistance and longer service life compared to conventional plugs. This product line is designed to meet or exceed original equipment specifications, ensuring reliable ignition and consistent engine performance for vehicles requiring platinum spark plugs.

Technical Details and Specifications

The Bosch 6708 spark plug features a platinum center electrode tip combined with a nickel-yttrium and copper core, enhancing conductivity and durability. The ground electrode tip is made of nickel-yttrium with a tapered design to optimize spark exposure and combustion efficiency. The spark plug has a 14 mm thread diameter, 11.2 mm reach, and a 16 mm hex size for installation compatibility. Its ceramic insulator is non-projected, providing effective heat dissipation and electrical insulation. The resistor value of 6000 ohms helps suppress radio frequency interference, making it suitable for modern ignition systems.

Compatible Vehicles and Applications

• Designed for use in 4-cycle engines of Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models
• Compatible with vehicles such as Chevrolet Camaro, GMC Sierra, Cadillac DeVille, Pontiac Firebird, and Buick LeSabre
• Suitable for various GM trucks and SUVs including Suburban, Blazer, and Yukon
• Ideal replacement for spark plugs in models like Chevrolet Impala, Oldsmobile Cutlass, and Pontiac Grand Prix

Common Issues Addressed by Bosch 6708 Spark Plug

• Misfiring or rough engine idle due to worn or fouled spark plugs
• Reduced fuel efficiency caused by incomplete combustion
• Difficulty starting the engine in cold conditions
• Engine hesitation or loss of power under acceleration
• Excessive emissions from inefficient ignition

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 1.3 mm as specified. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the tapered seat. Ensure the spark plug threads are clean and free of debris. The 16 mm hex size allows for standard spark plug socket compatibility. It is recommended to replace all spark plugs in the engine simultaneously to maintain balanced performance.

Quality Assurance and Warranty

Bosch OE Fine Wire Platinum spark plugs are 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 against manufacturing defects. Always consult the vehicle’s service manual and Bosch documentation for proper maintenance intervals and warranty information.