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Replacement for OEM 6R12. 12mm threaded, 19mm (3/4") reach. Used with a 16mm spark plug socket. Removable terminal. Copper-core centre electrode.
NGK copper core V-Power spark plugs feature a specially designed v-groove centre electrode, improving ignitability and reducing quenching.
The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating.
Cold-rolled threads prevent cross-threading and damage to cylinder heads. Trivalent plating eliminates need for anti-seize. High-grade alumina silicate ceramic.
NGK copper core V-Power spark plugs feature a specially designed v-groove centre electrode, improving ignitability and reducing quenching.
The 98% pure copper nickel plated core delivers increased heat dissipation for more reliable starts and a reduced risk of overheating.
Cold-rolled threads prevent cross-threading and damage to cylinder heads
Trivalent plating eliminates need for anti-seize
High-grade alumina silicate ceramic
Part numbers +
ARM750339
933057
Fitment +
HARLEY DAVIDSON
Dyna Switchback - FLD: 2012-2016
Road King - FLHR: 1999-2017
Road King Classic - FLHRC: 2004, 2007-2017
Road King Classic (EFI) - FLHRCI: 1999-2006
Road King (EFI) - FLHRI: 1999-2006
Road King Custom - FLHRS: 2004-2007
Road King CVO/SE - FLHRSE3: 2007
Road King CVO/SE - FLHRSE4: 2008
Road King CVO/SE - FLHRSE5: 2013
Road King CVO/SE - FLHRSE6: 2014
Road King CVO/SE (EFI) - FLHRSEI: 2002
Road King CVO/SE (EFI) - FLHRSEI2: 2003
Road King Custom - FLHRSI: 2004-2006
Road King Special - FLHRXS: 2017
Electra Glide Standard - FLHT: 1999-2005, 2007-2010
Softail Breakout Pro Street CVO/SE - FXSE: 2016-2017
Softail - FXST: 1999-2007
Softail Night Train - FXSTB: 1999-2009
Softail Night Train (EFI) - FXSTBI: 2003-2006
Softail Custom - FXSTC: 1999, 2007-2010
Softail Deuce - FXSTD: 2000-2007
Softail Deuce (EFI) - FXSTDI: 2001-2006
Softail Deuce CVO/SE - FXSTDSE: 2003
Softail Deuce CVO/SE - FXSTDSE2: 2004
Softail Standard (EFI) - FXSTI: 2003-2006
Softail Springer - FXSTS: 1999-2006
Softail Springer (EFI) - FXSTSI: 2003-2006
Softail Springer CVO/SE - FXSTSSE: 2007
Softail Springer CVO/SE - FXSTSSE2: 2008
Softail Springer CVO/SE - FXSTSSE3: 2009
Sportster Custom - XL 1200 C: 1996-2020
Roadster - XL 1200 CX: 2016-2020
Sportster Low - XL 1200 L: 2006-2011
Sportster Nightster - XL 1200 N: 2007-2012
Sportster 1200 Iron - XL 1200 NS: 2018-2021
Sportster Roadster - XL 1200 R: 2004-2008
Sportster Sport - XL 1200 S: 1996-2003
Sportster Super Low - XL 1200 T: 2014-2020
Sportster Seventy-Two - XL 1200 V: 2012-2016
Sportster Forty-Eight - XL 1200 X: 2010-2022
Sportster Forty-Eight Special - XL 1200 XS: 2018-2020
Sportster - XL 883: 1986-2009
Sportster Custom - XL 883 C: 1998-2010
Sportster SuperLow - XL 883 L: 2005-2020
Sportster Iron - XL 883 N: 2009-2022
Sportster Roadster - XL 883 R: 2002-2015
Sportster 50th Anniversary - XL50: 2007
Sportster - XLH: 1986-2003
Delivery +
All orders are shipped with either DPD, Fedex, UPS, DHL or Royal Mail. The courier used to ship your order is determined by ourselves once your order has been placed and normally depends on the size, volume and the shipping destination. The selected courier for your order will be quoted in your order confirmation email which you will receive once we have processed your order. Once your order has been shipped, this will be confirmed via email and you will receive a tracking number so you can keep an eye on your shipments progress.