FR7DCX+ Bosch Spark Plug +11 x4

The FR7DCX+ Bosch Spark Plug +11 x4 delivers quality performance based on technology that's proven on racetracks around the world in the most sophisticated racing engines. Testing has confirmed the durability of yttrium-enhanced center electrodes. Now Bosch brings these benefits to you in Bosch Super Plus, the longest-lasting copper core spark plug on the market.

FR7DCX+ Bosch Spark Plug +11 x4 Extra Info

• Heavy-duty yttrium-enhanced copper core center electrode
• Superior reliability & durability for 50% longer performance life vs. even OE plugs
• Tapered, v-profile nickel chromium ground electrode
• Improved starting in cold weather and increased fuel ignitability
• Nickel-plated rolled threads
• Complete anti-seize and corrosion protection
• Metal glass fused resistor
• Maximum interference suppression
• Angular, five-ribbed insulator design
• Prevents misfire due to current leakage