Bosch 9608 Spark Plug

Overview of Bosch OE Fine Wire Double Iridium Spark Plug 9608

The Bosch OE Fine Wire Double Iridium Spark Plug 9608 is engineered for reliable ignition performance in select Ford, Lincoln, Mazda, and Mercury vehicles. 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 design with a standard ground configuration
• Pre-gap size of 1.1 mm optimized for ignition efficiency
• Resistor type spark plug with 6000 ohms resistance to reduce electrical noise
• Compatible with 4-cycle engines in various Ford and Lincoln models

Features and Technical Specifications

This spark plug features a 16 mm hex size and a 17.5 mm reach with a 14 mm thread diameter, ensuring proper fitment and installation. The center electrode is made from iridium with a nickel-yttrium and copper core, while the ground electrode tip combines platinum-iridium and nickel-yttrium materials for extended wear resistance. The ceramic insulator is non-projected and designed to withstand high temperatures, with a manufacturer heat range rating of 6. The spark plug also includes a tapered seat type for secure sealing.

About the OE Fine Wire Double Iridium Product Line

The Bosch OE Fine Wire Double Iridium line focuses on delivering precise ignition performance through the use of fine wire electrodes made from durable iridium alloys. This product line is designed to provide consistent spark delivery and longer service life compared to conventional spark plugs. The double iridium construction reduces electrode wear and improves ignition reliability, making it suitable for demanding applications in vehicles such as the Ford F-150, Lincoln Town Car, and Mazda Ranger.

Compatible Vehicles and Applications

• Ford F-150, F-250, Expedition, Mustang, Ranger, E-150, E-250, E-350 Econoline series
• Lincoln Town Car, Grand Marquis, Crown Victoria
• Mazda B4000
• Mercury Grand Marquis, Mountaineer

Common Issues Addressed by Bosch Spark Plug 9608

• Engine misfires and rough idling
• Reduced fuel efficiency due to incomplete combustion
• Difficulty starting the engine in cold conditions
• Increased emissions from worn or fouled spark plugs
• Loss of engine power and acceleration

Installation Notes and Tips

Ensure the spark plug gap is set to 1.1 mm before installation if adjustment is necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the tapered seat. The 16 mm hex size allows for standard spark plug socket compatibility. It is recommended to replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Bosch OE Fine Wire Double Iridium spark plugs are manufactured to meet strict OEM standards for fit, form, and function. The use of high-quality materials such as iridium and platinum alloys 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.