DENSO Iridium Spark Plug, heat range 27, reach 19mm, Threaded, thread 10mm, IUH27

Description

DENSO Iridium Spark Plug, heat range 27, reach 19mm, Threaded, thread 10mm, IUH27

• Six times harder than platinum, iridium doesn’t melt in temperatures up to 4,000 F
• Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
• 360 laser welding of electrode provides a seal that resists wear even in the worst conditions
• Ground electrode features a tapered cut and U-groove that form a large volume area for the flame’s center
• Use NGK reference chart to order and stock these plugs