Bosch 9602 Spark Plug

Overview of Bosch OE Fine Wire Double Iridium Spark Plug 9602

The Bosch OE Fine Wire Double Iridium Spark Plug 9602 is engineered for reliable ignition performance in a range of GM vehicles including Chevrolet, Cadillac, and GMC models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Double iridium center and ground electrode tips for enhanced durability
• Tapered ground electrode tip and seat type for optimal spark exposure
• 6000 ohm resistance resistor to reduce electrical noise
• Standard ground configuration with a single ground electrode
• Pre-gap size of 1 mm for precise ignition timing
• Compatible with 4-cycle engines requiring a 14 mm thread diameter and 17.5 mm reach
• Hex size of 16 mm for standard installation tools
• Ceramic projected insulator for improved heat dissipation
• Manufacturer heat range rating of 8 for balanced thermal performance

Details on Bosch OE Fine Wire Double Iridium Technology

The OE Fine Wire Double Iridium line from Bosch features spark plugs with fine wire iridium center electrodes combined with platinum-iridium ground electrode tips. This combination provides a longer service life and stable spark delivery under various driving conditions. The use of nickel-yttrium and copper in the center electrode core enhances conductivity, while the ceramic projected insulator improves heat management. These design elements contribute to consistent ignition and reduced misfires in compatible vehicles.

Applications and Compatible Vehicles

This Bosch spark plug 9602 is compatible with a wide range of General Motors vehicles, including Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, and Saab. Specific models include Chevrolet Silverado 1500, Cadillac Escalade, GMC Sierra 2500 HD, Buick LaCrosse, and Pontiac GTO among others. It is designed for 4-cycle engines requiring a 14 mm thread diameter, 17.5 mm reach, and a heat range of 8.

• Resolves engine misfires and rough idling
• Improves cold start performance
• Reduces spark plug fouling and wear
• Enhances fuel efficiency by ensuring complete combustion
• Minimizes electrical interference with onboard electronics

Installation Notes and Tips

When installing the Bosch OE Fine Wire Double Iridium Spark Plug 9602, ensure the pre-gap size of 1 mm is maintained for optimal ignition. Use a 16 mm socket wrench for proper torque application. The tapered seat type requires careful seating to avoid damage to the cylinder head. It is recommended to replace spark plugs in sets to maintain engine balance and performance. Always consult the vehicle’s service manual for specific torque specifications and installation procedures.

Quality Assurance and Warranty

Bosch spark plugs are manufactured to meet OE standards, ensuring consistent quality and performance. The OE Fine Wire Double Iridium spark plugs undergo rigorous testing for durability and electrical resistance, including a 6000 ohm resistor to suppress radio frequency interference. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects. Refer to Bosch’s official documentation for warranty terms applicable to part number 9602.