Bosch F6DSR Silver Spark Plug - High Performance Racing Plug

The Bosch F6DSR Silver Spark Plug is a high-performance fine wire spark plug engineered specifically for racing and demanding powersports applications. Designed for engines operating at full throttle under extreme conditions—including racing, water skiing, and towing—this plug features a silver-enhanced center electrode that delivers superior electrical conductivity compared to conventional copper or nickel electrodes.

Important Application Note: This plug is optimized for high-performance racing environments and is not recommended for regular street driving or stop-and-go traffic, where it may foul prematurely. Silver's lower melting point compared to nickel means these plugs prioritize maximum performance over extended service life, making them ideal for racers who replace plugs frequently between events or runs.

Key Features:

• Silver-enhanced center and ground electrodes for superior electrical conductivity and consistent spark performance
• 16mm hex size for easy installation and removal
• 14mm thread diameter with nickel-plated rolled threads for excellent anti-seize properties and corrosion resistance
• Five-rib insulator design prevents misfires caused by current leakage
• Engineered for colder racing applications and full-throttle operation
• Optimized for maximum performance in racing, marine, and powersports engines

This single spark plug is the choice of performance enthusiasts who demand reliable ignition under the most demanding conditions. Replace regularly according to your racing schedule for optimal performance.