Champion, Spark Plug, RA8HC For Harley-Davidson

(6R12).
12 mm thread.
19mm (1/2") long reach.
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.
Custom replacement for 32317-80 and 32362-04A.
4 units

Fits: > 99-17 Twin Cam; 86-22 XL (except XR1200)