Description

Double Platinum spark surfaces offer superior erosion resistance even after millions of sparks. H-D® Double Platinum Plugs also feature a semiconductor suppressor, a triple-coated shell with special anti-seize coating, a copper core centre electrode for high thermal capacity and peak performance at all engine speeds, tapered centre and platinum side electrodes for maximum combustibility. Special high alumina insulator provides self-adjusting temperature for maximum resistance to fouling. Harley-Davidson®’s longest-lasting spark plugs.

(10R12APP) each