Bosch 6706 Spark Plug

Bosch OE Fine Wire Platinum Spark Plug 6706

Bosch 6706 is an OE Fine Wire Platinum spark plug built for precise ignition performance and steady fuel efficiency. It uses a fine-wire platinum center electrode with a tapered ground electrode to promote reliable spark delivery in a wide range of GM applications, including Chevrolet Cavalier, Lumina, Malibu, Monte Carlo, and Pontiac Grand Prix fitments.

Key Features

• Fine wire platinum firing pin on the center electrode for improved ignitability
• Tapered ground electrode design for efficient spark exposure
• OE-style platinum construction engineered to meet or exceed original equipment specifications
• Resistor plug design for ignition system noise control
• Preset gap; do not gap before installation
• 14 mm thread diameter, 17.5 mm reach, 16 mm hex size, tapered seat
• Ceramic insulator with nickel-yttrium ground electrode tip material

Product Details

The Bosch OE Fine Wire Platinum line is aimed at drivers who want an original-equipment replacement spark plug with platinum durability and consistent combustion performance. Bosch 6706 uses a platinum center electrode, nickel-yttrium and copper core materials, and a non-projected insulator design to support stable ignition under everyday driving conditions. This part number is a direct service-style choice for many GM vehicles, including Buick Century, Chevrolet Impala, Oldsmobile Silhouette, and Pontiac Montana applications.

This part cross-references AC Delco 41-932 for the same application.

What It Helps Address

• Hard starting caused by worn or inefficient spark plugs
• Rough idle from inconsistent ignition firing
• Misfire conditions related to aged plug electrodes
• Reduced fuel economy from weak spark delivery
• Service intervals that call for OE-style platinum replacement plugs

Installation Notes and Tips

Install Bosch 6706 exactly as supplied and do not adjust the gap. The preset gap is part of the plug’s OE-style specification. Verify the vehicle’s engine code and service requirements before installation, and use the correct torque procedure for the tapered seat design to avoid thread or sealing damage.

Compatible With 1980-2003 GM applications listed in the fitment data, including Chevrolet Cavalier, Chevrolet Lumina, Chevrolet Monte Carlo, Buick Century, Pontiac Grand Prix, and Oldsmobile Alero. Fitment notes on many applications specify “Do Not Gap, Gap is Preset.”

Quality Assurance

Bosch OE Fine Wire Platinum spark plugs are engineered to meet or exceed original equipment specifications for platinum spark plug applications. The 6706 part number is built for OE-style service replacement use across the listed fitments.