Harley-Davidson Heritage Classic Spark Plugs
Genuine HD spark plugs and aftermarket alternatives that fit the Heritage Classic — all years. Select your year for exact fitment and pricing.
Genuine Harley-Davidson (1)
Aftermarket for your Heritage Classic
Confirmed to fit your Heritage Classic
Aftermarket spark plugs the supplier lists against the Heritage Classic. 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
Brisk
BRISK SPARK PLUGS
In stock
£20.62Iron Pass £17.53£18.56View
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
Accel
Accel, U-groove platinum spark plug set. 14mm
In stock
£62.47Iron Pass £54.97£56.85View
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 BPR6EIX-11
In stock
£18.88Iron Pass £16.05£16.99View
NGK
NGK, spark plug BPR7ES-11
In stock
£4.75Iron Pass £4.04£4.28View
NGK
NGK, spark plug BPR6ES-11
In stock
£4.33Iron Pass £3.68£3.90View
NGK
NGK, spark plug ZGR5C
In stock
£5.32Iron Pass £4.52£4.79View
NGK
NGK, spark plug BPR4ES-11
In stock
£5.63Iron Pass £4.79£5.07View