NGK Iridium IX Spark Plug LFR7AIX 2309
IRDurance NGK Iridium IX spark plug with corrosion-resistant coating and strong heat transfer. Customers note smooth idle and improved engine responsiveness in certain models
Highlights
- trivalent metal plating
- corrugated ribs to prevent flashover
- alumina silicate ceramic insulator
Pros
- corrosion and anti-seize properties
- strong heat transfer
- improved idle performance (customer insight)
- good fit and build quality (customer insight)
Cons
- mixed reviews on pre-gap accuracy
- gap accuracy varies by user feedback
Best For
Features
- Trivalent metal plating provides corrosion and anti-seize properties
- Corrugated ribs prevent flashover during operation
- Pure alumina silicate ceramic insulator for reliability
- High-strength ceramic insulator with improved heat transfer
- Copper core aids in heat removal
