FR4


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Band : NGK
Parts No. : FR4
Stock No. : 5155 / 5188
NGK Standard Types Spark Plugs FR4
Design Symbols used in NGK Spark Plugs
F - Thread Dimension / Hex Size: 14mm Hex. 5/8" 3/4" (19mm) Projected Gasket Seat

R - Resistor

Heat Rating Numbers : 4


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Price is for each plug.
To make sure which spark plug will fit your car, please let me know your make and model and we will check it up for you.


Cross Reference Denso Parts No. : K16PR-U
Denso IRIDIUM POWER : IK16
Denso IRIDIUM TOUGH : VK16


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