Brisk Iridium Performance ER12BIR-6 Spark Plug

ER12BIR-6 Brisk Iridium Performance Spark Plugs  Brisk SKU  -  ER12BIR-6 Parameters: Thread Diameter 14mm Thread Reach 26.5mm-1" Hexagon 16mm-5/8" Seat Type Gasket Design Iridum/Yttirum  Resistor Yes Projected No Heat Range  -  12 Brisk ER12BIR-6 Replaces:NGK 4901 R7437-8 Racing PlugNGK 4905 R7438-8 Racing PlugNGK 91006 SILFER8C7ES Laser Iridium Spark Plug Popular Applications:   With very long lifespan, the P range Brisk spark plugs are the most modern design to fit modern highly efficient and stressed engines. The Iridium core center electrode is surrounded by Yttrium alloy made body and earth electrode that gives very low voltage requirement prolonging ignition coil lifespan.   Lower voltage requirement stands for easier cold starts, less of a chance of a misfire due to fouling as a result of oil burning, use of alternative fuels or prolonged idling. Features Yttrium alloy earth electrode with Iridium core. Nickel / Zinc coating for corrosion protection Lower vol