Genuine Denso 3421 SK20HR11 Spark Plug Iridium Long Life 6 Pack

Resistance 5000
Ground Electrode Tip Design Platinum Chip
Ground Configuration Standard
Ground Electrode Core Material Nickel
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium
Gap Size 1.1 mm
Ground Electrode Quantity 1
Hex Size 16.0 mm
Manufacturer Heat Range 20
Seat Type Flat
Reach 26.50 mm
Thread Diameter 14.00 mm