Harley-Davidson Road King Spark Plugs

Genuine HD spark plugs and aftermarket alternatives that fit the Road King — all years. Select your year for exact fitment and pricing.

Select your year for exact fitment & prices

2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994

Genuine Harley-Davidson (5)

Genuine Harley-Davidson

Gold Spark Plugs

32365-04

£8.21Iron Pass £6.98£7.39View

Genuine Harley-Davidson

Harley-Davidson Original Equipment Spark Plug

31600012

£6.41Iron Pass £5.45£5.77View

Genuine Harley-Davidson

Gold Spark Plugs

32367-04

£9.53Iron Pass £8.10£8.58View

Genuine Harley-Davidson

Harley-Davidson Original Equipment Spark Plug

32362-04A

£7.13Iron Pass £6.06£6.42View

Genuine Harley-Davidson

Harley-Davidson Original Equipment Spark Plug

32342-04

£5.93Iron Pass £5.04£5.34View

Aftermarket for your Road King

Confirmed to fit your Road King

Aftermarket spark plugs the supplier lists against the Road King. 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

Accel

Accel, U-groove platinum spark plug set. 12mm

In stock

£59.33Iron Pass £52.21£53.99View

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 BPR4ES-11

In stock

£5.63Iron Pass £4.79£5.07View

NGK

NGK, spark plug Iridium IX DCPR8EIX

In stock

£17.15Iron Pass £14.58£15.44View