Bosch 8100 Spark Plug

Overview of Bosch OE Fine Wire Double Platinum Spark Plug 8100

The Bosch OE Fine Wire Double Platinum Spark Plug 8100 is engineered for reliable ignition performance in a wide range of vehicles including Acura, BMW, Ford, Honda, Toyota, and Volkswagen models. Designed with precision, this spark plug supports efficient combustion and consistent engine operation.

• Double platinum electrodes for extended durability
• 6000 ohm resistor to reduce electrical interference
• Standard ground electrode tip and configuration
• 1.1 mm pre-gap size optimized for 4-cycle engines
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Ceramic non-projected insulator for heat resistance
• Hex size 16 mm for easy installation
• Manufacturer heat range rating of 8

Detailed Product Features and Specifications

This Bosch spark plug features a center electrode tip made of platinum, combined with a nickel-yttrium and copper core material to ensure stable spark delivery and longevity. The ground electrode tip also uses platinum and nickel-yttrium, enhancing wear resistance and maintaining consistent gap over time. The 6000 ohm resistor helps suppress radio frequency interference, protecting sensitive electronic components in modern vehicles.

The spark plug’s flat seat and 14 mm thread diameter with a 19 mm reach make it compatible with many popular models such as the Toyota Camry, Honda Civic, Ford F-100, and Volkswagen Jetta. Its 1.1 mm pre-gap size is optimized for 4-cycle engines, supporting efficient ignition and fuel combustion.

About the OE Fine Wire Double Platinum Product Line

The Bosch OE Fine Wire Double Platinum line is designed to provide enhanced durability and consistent performance by utilizing fine wire electrodes made from platinum on both the center and ground electrodes. This design reduces electrode wear and maintains optimal spark gap, which is critical for maintaining engine efficiency and emissions compliance in vehicles like the BMW 3 Series, Acura TL, and Lexus RX.

Applications and Common Issues Addressed

• Improves ignition reliability in 4-cycle engines
• Reduces misfires caused by electrode wear
• Minimizes radio frequency interference affecting vehicle electronics
• Helps maintain fuel efficiency and smooth engine operation
• Supports consistent engine starting and acceleration response

Installation Notes and Tips

When installing the Bosch 8100 spark plug, ensure the spark plug gap is set to the recommended 1.1 mm pre-gap size if adjustment is necessary. Use a 16 mm socket wrench for proper torque application. The flat seat design requires careful seating to avoid cross-threading. It is recommended to replace spark plugs in sets to maintain balanced engine performance, especially in vehicles like the Nissan Altima or Subaru Outback.

Quality Assurance and Warranty

Bosch spark plugs are manufactured to meet strict OEM standards, ensuring consistent quality and performance. The OE Fine Wire Double Platinum spark plug 8100 includes a resistor to protect against electrical interference and is built with durable materials such as ceramic insulators and platinum electrodes. Bosch typically offers a limited warranty on their ignition components; please refer to Bosch’s official documentation for specific warranty details.