Bosch 79173 Suppressed Spark Plug

The Bosch 79173 is a suppressed spark plug designed to reduce electromagnetic interference in sensitive electronic systems. This plug features built-in resistor technology that suppresses radio frequency interference (RFI), making it ideal for applications with onboard electronics, communication equipment, or aviation systems where signal clarity is critical.

Key Features:

• Suppressed design with integral resistor for RFI reduction
• Bosch quality construction for reliable ignition performance
• Copper core center electrode for excellent heat dissipation
• Nickel-plated shell resists corrosion and seizing
• Precision-engineered insulator for optimal performance

Bosch spark plugs are engineered to meet OEM specifications and deliver consistent firing performance. The suppressed design prevents interference with radio, GPS, avionics, and other sensitive electronics while maintaining dependable ignition in demanding conditions.