Bosch 9673 Spark Plug

Overview of Bosch OE Fine Wire Double Iridium Spark Plug 9673

The Bosch OE Fine Wire Double Iridium Spark Plug 9673 is engineered for reliable ignition performance in select Chrysler, Dodge, Jeep, and Ram vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability
• Tapered ground electrode tip design for improved spark efficiency
• Standard ground configuration with a single ground electrode
• Pre-gap size of 1.1 mm optimized for ignition performance
• Flat seat type with 14 mm thread diameter and 26.5 mm reach
• Ceramic projected insulator for heat resistance and electrical insulation
• Manufacturer heat range rating of 8 suitable for various driving conditions
• Hex size of 16 mm for installation compatibility
• Resistor included with 6000 ohm resistance to reduce electrical noise

Detailed Product Description and Attributes

The Bosch OE Fine Wire Double Iridium spark plug 9673 features a center electrode tip made from iridium, a material known for its high melting point and wear resistance, which contributes to longer service life and stable ignition. The ground electrode tip combines platinum-iridium and nickel-yttrium materials, enhancing electrode durability and maintaining consistent spark gaps over time. The tapered design of the ground electrode tip improves spark exposure to the air-fuel mixture, promoting efficient combustion.

This spark plug has a pre-gap size of 1.1 mm, which is factory set to optimize ignition timing and performance. The flat seat type ensures a secure fit in the cylinder head, while the 26.5 mm reach and 14 mm thread diameter match specific engine requirements. The ceramic insulator is projected to provide excellent electrical insulation and heat dissipation, supporting stable operation under various engine temperatures.

OE Fine Wire Double Iridium Product Line

The OE Fine Wire Double Iridium line by Bosch is designed to meet or exceed original equipment specifications for ignition components. This product line focuses on fine wire electrodes made from iridium and platinum alloys, which offer improved ignition reliability and longevity compared to conventional spark plugs. The double iridium construction enhances electrode wear resistance and maintains consistent spark performance, making it suitable for modern 4-cycle engines found in Chrysler, Dodge, Jeep, and Ram vehicles.

Compatible Vehicles and Applications

This spark plug is compatible with a range of Chrysler, Dodge, Jeep, and Ram models, including but not limited to:

• Chrysler 300 and Aspen
• Dodge Challenger, Charger, Durango
• Jeep Commander, Grand Cherokee, Grand Cherokee L, Wagoneer
• Ram 1500, 1500 Classic, 2500, 3500

Common Issues Addressed by Bosch Spark Plug 9673

• Engine misfires and rough idling
• Reduced fuel efficiency due to incomplete combustion
• Difficulty starting the engine in cold conditions
• Increased emissions from inefficient ignition
• Premature electrode wear affecting spark consistency

Installation Notes and Tips

When installing the Bosch OE Fine Wire Double Iridium spark plug 9673, ensure the spark plug gap is verified at 1.1 mm if adjustments are necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the cylinder head or spark plug. The 16 mm hex size allows for standard spark plug socket compatibility. It is advisable to inspect the ignition system components and replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Bosch spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The OE Fine Wire Double Iridium spark plug 9673 includes a resistor with 6000 ohm resistance to minimize electrical interference with vehicle electronics. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects. Refer to Bosch’s official documentation for complete warranty information.