The champion copper plus spark plug for indian chief 105 2009-2013 24 pack is part of the latest collection from champion.Features: features a copper core center electrode that allows for accurate control of heat range, optimizing performance and longevity of the spark plug patented sac-9 semi-conductor resistor for maximum emi and rfi suppression patented ultrasealâ coated shell for rust prevention specifications: center electrode projection: projected center electrode type: standard electrode tip material: nickel alloy ground electrode configuration: single ground electrode shape: standard heat range: 12 hex size imperial: 13 16 hex size metric: 20.6 Mm model: rn12yc product name: spark plug research value: finalized riding style: street to fit: harley davidson flhr 1340 1994 road king all models harley davidson flhr 1340 1995 road king all models harley davidson flhr 1340 1996 road king all models harley davidson flhr 1340 1997 road king all models harley davidson flhr 1340 1998 road king all models harley davidson flhr 1450 1999 road king all models harley davidson flht 1340 1986 electra glide all models harley davidson flht 1340 1987 electra glide all models harley davidson flht 1340 1988 electra glide all models harley davidson flht 1340 1995 electra glide standard all models harley davidson flht 1340 1996 electra glide standard all models harley davidson flht 1340 1997 electra glide standard all models harley davidson flht 1340 1998 electra glide standard all model...