NGK DCR7EIX Iridium Spark Plug

Thread 12mm x hex 5/8" (16mm) x pitch 1.25mm
Ceramic resistor
Heat range 7
19mm (3/4") reach
0.6mm fine wire iridium centre electrode
0.7-0.8mm gap

Upgrade from the standard plug to NGK’s Iridium series for sharper performance and longer life. The ultra fine iridium centre electrode delivers a stronger, more consistent spark, improving throttle response, fuel efficiency, and cold starting. Iridium’s superior durability means less wear, longer service intervals, and reliable ignition even under extreme conditions. Key benefits over standard plugs:

Stronger spark for improved combustion and throttle response
Better fuel efficiency and smoother running
Easier cold starts
Longer lifespan thanks to iridium’s high melting point
Reduced misfires and consistent performance under load

Before You Place Your Order...

Note the image may not be exactly as item received and any slight difference will not be inferior or effect performance
Check the fitment list to ensure this item will fit your vehicle
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All parts and accessories are brand new and include VAT where applicable.
Most parts are pattern or aftermarket although some will be genuine but are not always stated as being so.
The use of motorcycle manufacturers' names is for reference purposes only. We do not imply that the products we sell are made by or with the permission of the names listed.

BMW

K1200 GT 2002-04

K1200 LT 1996-03

K1200 LT Lux 2000-09

K1200 RS 1996-06

Buell

S1 White Lightning 1998

S2 T Thunderbolt 1996

S2 Thunderbolt 1995-96

Harley Davidson

FLD 1584 Dyna Switchback 2012-16

FLHR 1450 Road King 1999-06

FLHR 1584 Road King 2007-11

FLHR 1690 Road King 2011-16

FLHRC 1584 Road King Classic 2007-11

FLHRC 1690 Road King Classic 2011-13

FLHRCI 1450 Road King Classic (EFI) 1999-06

FLHRI 1450 Road King (EFI) 2000-06

FLHRS 1450 Road King Custom 2004-06

FLHRS 1584 Road King Custom 2007

FLHRSE3 1802 Screamin Eagle Road King (CVO) 2007

FLHRSE4 1802 Screamin Eagle Road King (CVO) 2008

FLHRSE5 1802 Road King (CVO) 2013

FLHRSEI 1450 Screamin Eagle Road King 2002

FLHRSEI 1550 Screamin Eagle Road King (CVO) 2002

FLHRSEI2 1690 Screamin Eagle Road King (CVO) 2003

FLHRSI 1450 Road King Custom (EFI) 2004-06

FLHT 1450 Electra Glide Standard 1999-06

FLHT 1584 Electra Glide Standard 2007-09

FLHTC 1450 Electra Glide Classic 1999-06

FLHTC 1584 Electra Glide Classic 2007-11

FLHTC 1690 Electra Glide Classic 2011-13

FLHTCI 1450 Electra Glide Classic (EFI) 1999-06

FLHTCSE 1690 Screamin Eagle Electra Glide (CVO) 2004

FLHTCSE2 1690 Screamin Eagle Electra Glide (CVO) 2005

FLHTCU 1584 Electra Glide Ultra Classic 2007-11

FLHTCU 1690 Electra Glide Ultra Classic 2011-14

FLHTCU 1690 Ultra Classic Electra Glide 2015-16

FLHTCUI 1450 Electra Glide Ultra Classic 1999-06

FLHTCUL 1690 Electra Glide Ultra Classic Low 2015-16

FLHTCUSE 1690 Screamin Eagle Ultra Classic Electra Glide (CVO) 2006

FLHTCUSE2 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2007

FLHTCUSE3 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2008

FLHTCUSE4 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2009

FLHTCUSE5 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2010

FLHTCUSE6 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2011

FLHTCUSE7 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2012

FLHTCUSE8 1802 Screamin Eagle Ultra Classic Electra Glide (CVO) 2013

FLHTCUTG 1690 Tri Glide Ultra Classic Trike 2009-16

FLHTI 1450 Electra Glide Standard (EFI) 2003-06

FLHTK 1690 Electra Glide Ultra Limited 2010-14

FLHTKL 1690 Ultra Limited Low 2015-16

FLHTKSE 1802 Limited (CVO) 2014-16

FLHX 1450 Street Glide 2006

FLHX 1584 Street Glide 2007-11

FLHX 1690 Street Glide 2011-16

FLHXI 1450 Street Glide 2006

FLHXS 1690 Street Glide Special 2014-16

FLHXSE 1802 Street Glide (CVO) 2010, 2015-16

FLHXSE2 1802 Street Glide (CVO) 2011

FLHXSE3 1802 Street Glide (CVO) 2012

FLHXXX 1690 Street Glide Trike 2010-11

FLRT 1690 Freewheeler 2015-16

FLS 1584 Softail Slim 2012-16

FLS 1690 Softail Slim 2012-17

FLSS 1802 Softail Slim S 2016-17

FLST 1450 Heritage Softail 2006

FLSTC 1450 Heritage Softail Classic 2000-06

FLSTC 1584 Heritage Softail Classic 2007-16

FLSTC 1690 Heritage Softail Classic 2011-17

FLSTCI 1450 Heritage Softail Classic (EFI) 2001-06

FLSTF 1450 Fat Boy 2000-06

FLSTF 1584 Fat Boy 2007-16

FLSTF 1690 Fat Boy 2011-17

FLSTFB 1584 Fat Boy 2010-15

FLSTFB 1690 Fat Boy Special 2011-16

FLSTFBS 1801 Fat Boy S 2016-17

FLSTFI 1450 Fat Boy (EFI) 2001-06

FLSTFI 1450 Fat Boy 15th Anniversary Edition (EFI) 2005

FLSTFSE 1690 Screamin Eagle Fat Boy (CVO) 2005

FLSTFSE2 1690 Screamin Eagle Fat Boy (CVO) 2006

FLSTI 1450 Heritage Softail 2006

FLSTN 1450 Softail Deluxe 2005-06

FLSTN 1584 Softail Deluxe 2007-16

FLSTN 1690 Softail Deluxe 2011-17

FLSTNI 1450 Softail Deluxe (EFI) 2005-06

FLSTNSE 1802 Softail Deluxe (CVO) 2014-15

FLSTS 1450 Heritage Springer Softail 2000-03

FLSTSB 1584 Softail Cross Bones 2008-11

FLSTSC 1450 Softail Springer Classic 2005-06

FLSTSC 1584 Softail Springer Classic 2007

FLSTSCI 1450 Softail Springer Classic (EFI) 2005-06

FLSTSE 1802 Softail Convertible (CVO) 2010

FLSTSE2 1802 Softail Convertible (CVO) 2011

FLSTSE3 1802 Softail Convertible (CVO) 2012

FLSTSI 1450 Heritage Springer Softail (EFI) 2001-03

FLTR 1450 Road Glide 1999-02

FLTR 1584 Road Glide 2007-09

FLTRI 1450 Road Glide (EFI) 1999-06

FLTRSE3 1802 Screamin Eagle Road Glide (CVO) 2009

FLTRSEI 1550 Screamin Eagle Road Glide (CVO) 2000

FLTRSEI2 1550 Screamin Eagle Road Glide (CVO) 2001

FLTRU 1690 Road Glide Ultra 2011-13, 2016

FLTRUSE 1802 Road Glide Ultra (CVO) 2011

FLTRX 1690 Road Glide 2015-16

FLTRX 1690 Road Glide Custom 2011-13

FLTRXS 1690 Road Glide Special 2015-16

FLTRXSE2 1802 CVO Road Glide Custom 2013

FXCW 1584 Softail Rocker 2008-09

FXCWC 1584 Softail Rocker C 2008-11

FXD 1450 Dyna Super Glide 1999-05

FXD 1584 Dyna Super Glide 2007-10

FXDB 1584 Dyna Street Bob 2007-16

FXDB 1690 Dyna Street Bob 2014-17

FXDBI 1450 Street Bob 2006

FXDC 1450 Dyna Super Glide Custom 2005

FXDC 1584 Dyna Super Glide Custom 2007-14

FXDCI 1450 Dyna Super Glide Custom (EFI) 2005-06

FXDF 1584 Dyna Fat Bob 2008-16

FXDF 1690 Dyna Fat Bob 2012-14, 2016-17

FXDFSE 1802 Screamin Eagle Fat Bob (CVO) 2009

FXDFSE2 1802 Screamin Eagle Fat Bob (CVO) 2010

FXDI 1450 Dyna Super Glide (EFI) 2004-06

FXDI 35 1450 35th Anniversary Dyna Super Glide 2006

FXDL 1450 Dyna Low Rider 1999-05

FXDL 1584 Dyna Low Rider 2007-09, 2014-16

FXDL 1690 Dyna Low Rider 2014-17

FXDLI 1450 Dyna Low Rider (EFI) 2004-06

FXDLS 1800 Low Rider S 2017

FXDS-Conv 1450 Dyna Convertible 2000

FXDSE 1802 Screamin Eagle Dyna (CVO) 2007

FXDSE2 1802 Screamin Eagle Dyna (CVO) 2008

FXDWG 1450 Dyna Wide Glide 1999-05

FXDWG 1584 Dyna Wide Glide 2007-08, 2010-17

FXDWG 1690 Dyna Wide Glide 2012-17

FXDWG2 1450 Dyna Wide Glide 2002

FXDWG2 1450 Dyna Wide Glide (CVO) 2001

FXDWGI 1450 Dyna Wide Glide (EFI) 2004-06

FXDX 1450 Dyna Super Glide Sport 1999-05

FXDXI 1450 Dyna Super Glide Sport (EFI) 2004-05

FXDXT 1450 Dyna Super Glide T-Sport 2001-03

FXS 1584 Blackline 2011-13

FXSB 1584 Softail Breakout 2013-16

FXSB 1690 Softail Breakout 2013-17

FXSBSE 1802 CVO Breakout 2013-14

FXSE 1801 Pro Street Breakout 2017

FXST 1450 Softail Standard 2000-06

FXST 1584 Softail Standard 2007

FXSTB 1450 Softail Night Train 2000-06

FXSTB 1584 Softail Night Train 2007-09

FXSTBI 1450 Softail Night Train (EFI) 2001-06

FXSTC 1584 Softail Custom 2007-10

FXSTD 1450 Softail Deuce 2000-06

FXSTD 1584 Softail Deuce 2007

FXSTDI 1450 Softail Deuce (EFI) 2001-06

FXSTDSE2 1550 Screamin Eagle Softail Deuce (CVO) 2004

FXSTI 1450 Softail Standard (EFI) 2001-06

FXSTS 1450 Springer Softail 2000-06

FXSTSI 1450 Springer Softail (EFI) 2001-06

FXSTSSE Screamin Eagle Softail Springer (CVO) 2007

FXSTSSE2 Screamin Eagle Softail Springer (CVO) 2008

FXSTSSE3 Screamin Eagle Softail Springer (CVO) 2009

XL1200 C Sportster Custom 1996-19

XL1200 CX Roadster 2016-19

XL1200 L Sportster Low 2007-11

XL1200 N Sportster Nightster 2007-12

XL1200 NS Iron 2018-19

XL1200 R Sportster Roadster 2004-08

XL1200 S Sportster Sport 1996-03

XL1200 T Super Low 2014-17

XL1200 V Sportster Seventy-Two 2013-16

XL1200 X Sportster Fourty-Eight 2011-19

XL1200 XS Forty-Eight Special 2018-19

XL50 50th Anniversary Sportster 2007

XL53 C Sportster Custom 1998-03

XL883 C Sportster Custom 2002-09

XL883 L Sportster Low 2004-10

XL883 L Sportster Super Low 2011-19

XL883 N Sportster Iron 2009-19

XL883 R Sportster 2002-09

XL883 Sportster 2004-08

XLH1200 Sportster 1988-90, 1993-03

XLH883 Sportster 1986-03

XLH883 Sportster Hugger 1987-03

XLH883 Sportster Standard 2004-08

XR1200 Sportster 2009-10

XR1200 X Sportster 2011-12

NGK DCR7EIX Iridium Spark Plug