Harley-Davidson Road King Special Spark Plugs
Genuine HD spark plugs and aftermarket alternatives that fit the Road King Special — all years. Select your year for exact fitment and pricing.
Genuine Harley-Davidson (3)
Aftermarket for your Road King Special
Confirmed to fit your Road King Special
Aftermarket spark plugs the supplier lists against the Road King Special. Genuine Harley-Davidson is listed above, not here.
V-Twin
SPARK PLUG AIR COOLED RETRO CONVERSION KIT
In stock
£56.90Iron Pass £48.93£51.21View
Samwel Supplies
SPARK PLUG AIR COOLED RETRO CONVERSION KIT
In stock
£61.43Iron Pass £54.06£56.52View
Nology
NOLOGY SILVER SPARK PLUGS
In stock
£91.88Iron Pass £78.10£82.69View
OEM
OEM spark plug SE performance
In stock
£35.27Iron Pass £33.51£34.21View
OEM
OEM spark plug 6R10
In stock
£7.44Iron Pass £7.07£7.22View
NGK
NGK, spark plug Iridium IX CR9EIX
In stock
£15.42Iron Pass £13.11£13.88View
NGK
NGK, spark plug CR9EB
In stock
£9.26Iron Pass £7.87£8.33View
Champion
Champion, Copper Plus spark plug. CCH388
In stock
£3.68Iron Pass £3.13£3.31View