Champion Spark Plug, CCH388 For Harley-Davidson

RG6HCC.
10 mm thread.
4 used in M8, 2 used in XG.
Used with a 16mm spark plug socket.
Copper core center electrode with patented SAC-9 semiconductor resistor.
The spark plug comes with the patented Ultraseal™ coated housing, to help keep the spark plug body corrosion-free and looking better for a longer period of time.
1 unit
Replaces OEM: 31600012

Compatible with: > 17-23 M8; 15-20 Street XG750/500; 17-20 XG750A