I want to replace spark plugs on a 2005 1200C sporty that I bought in Feb 07. I'm looking for suggestions on what brand I should buy.... If anyone has any suggestions it would be helpful...:eam
I would stay with the HD plugs for that engine or go with some champion that makes the HD plugs. Here's a cross reference to champ and other plugs. http://www.harley-performance.com/harley-spark-plug.html
Champion Plugs for '05 Sportster are the RA8HC Autolite is 4164 NGK is DCPR7E NGK IX is DCPR7EIX So, other than H-D Genuine, these are the other leading brands and the corresponding part numbers for your bike.