Bosch 8516 Double Iridium Spark Plug

The Bosch 8516 Double Iridium Spark Plug delivers superior ignition performance and extended service life for modern engines. Engineered with advanced original equipment (OE) technology, this premium spark plug features iridium electrodes on both the center and ground positions for maximum durability and reliability.

Key Features:

• Double iridium construction with iridium center electrode and ground electrode for long-lasting performance
• Ultra-fine wire design delivers optimum ignition efficiency and fuel combustion
• Laser-welded tapered ground electrode ensures consistent spark delivery
• Pre-gapped at the factory for easy installation - gap adjustment not required or recommended
• Nickel-plated shell and rolled threads provide corrosion resistance and prevent seizure
• OE-equivalent design meets or exceeds original equipment specifications

Bosch Double Iridium Spark Plugs represent cutting-edge ignition technology designed to unlock your engine's full performance potential. The precision-engineered electrodes deliver reliable starts, smooth acceleration, and improved fuel efficiency throughout the plug's extended service life.