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2/4/6/8pcs Original K5RIU High Performance Spark Plug Compatible with Nissan
Specifications:
Hex Size: 0.6 inches (16 mm)
Thread Reach: 19mm
Screw Size: 0.6 inches (14 mm)
Heating Value: 5
An innovative U-Groove design that helps make the spark plug famous, employs a channel ground electrode designed to produce larger spark at the ignition point. Spark energy is higher than normal plugs, which improves flame movement and provides a more complete, consistent and efficient combustion.