Authorised Dealer
1 / 2
Authorised Dealer
E18-6655SDS Spark Plugs 99-22 TC/XL
£8.95 SAVE £1.34 (15%)
£7.61
incl. VAT
In Stock
Stock updated: 17 Jul 2026 JOIN IRON STABLE — SAVE 15%
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Part #: E18-6655SDS | Pack: PR
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Drag Specialties
- Part Number
- E18-6655SDS
- OEM Reference
- —
- Pack Quantity
- Sold as pr
- Category
- 2103-SPARK PLUG GROUP
- VAT Rate
- 20%
About This Product
These Drag Specialties spark plugs are designed for use in Harley-Davidson Twin Cam and Sportster engines. These NGK-type DCPR7E plugs are engineered to provide a reliable spark for efficient combustion and smooth engine performance. They feature a durable construction that withstands the high heat and vibration levels typical of V-twin engines. Replacing spark plugs is a fundamental part of routine maintenance to ensure easy starting and optimal fuel economy. These plugs are a direct replacement for standard heat range applications, helping to maintain the ignition system's integrity over thousands of miles. Sold as a pair.
Manufacturer part number: E18-6655SDS.
Fitment
167 models Cvo/Custom 48 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2013 | Breakout CVO FXSBSE |
| Harley-Davidson | 2009 | Dyna Fat Bob CVO FXDFSE |
| Harley-Davidson | 2010 | Dyna Fat Bob CVO FXDFSE2 |
| Harley-Davidson | 2007 | Dyna Screamin Eagle FXDSE |
| Harley-Davidson | 2008 | Dyna Screamin Eagle FXDSE2 |
| Harley-Davidson | 2001 | Dyna Wide Glide Limited Edition FXDWG2 |
| Harley-Davidson | 2002 | Dyna Wide Glide Limited Edition FXDWG3 |
| Harley-Davidson | 2005 | Electra Glide Screamin Eagle FLHTCSE2 |
| Harley-Davidson | 2009 | Electra Glide Ultra Classic CVO FLHTCUSE4 |
| Harley-Davidson | 2010 | Electra Glide Ultra Classic CVO FLHTCUSE5 |
| Harley-Davidson | 2011 | Electra Glide Ultra Classic CVO FLHTCUSE6 |
| Harley-Davidson | 2012 | Electra Glide Ultra Classic CVO FLHTCUSE7 |
| Harley-Davidson | 2013 | Electra Glide Ultra Classic CVO FLHTCUSE8 |
| Harley-Davidson | 2013 | Electra Glide Ultra Classic CVO 110th Anniversary FLHTCUSE8 |
| Harley-Davidson | 2006 | Electra Glide Ultra Classic Screamin Eagle FLHTCUSE |
| Harley-Davidson | 2007 | Electra Glide Ultra Classic Screamin Eagle FLHTCUSE2 |
| Harley-Davidson | 2008 | Electra Glide Ultra Classic Screamin Eagle FLHTCUSE3 |
| Harley-Davidson | 2014–2016 | Electra Glide Ultra Limited CVO FLHTKSE |
| Harley-Davidson | 2017 | Electra Glide Ultra Limited CVO 114 FLHTKSE |
| Harley-Davidson | 2005 | Fat Boy Screamin Eagle FLSTFSE |
| Harley-Davidson | 2006 | Fat Boy Screamin Eagle FLSTFSE2 |
| Harley-Davidson | 2012 | Road Glide Custom CVO FLTRXSE |
| Harley-Davidson | 2013 | Road Glide Custom CVO FLTRXSE2 |
| Harley-Davidson | 2013 | Road Glide Custom CVO 110th Anniversary FLTRXSE2 |
| Harley-Davidson | 2009 | Road Glide CVO FLTRSE3 |
| Harley-Davidson | 2000 | Road Glide Screamin Eagle FLTRSEI |
| Harley-Davidson | 2001 | Road Glide Screamin Eagle FLTRSEI2 |
| Harley-Davidson | 2011 | Road Glide Ultra CVO FLTRUSE |
| Harley-Davidson | 2013 | Road King CVO FLHRSE5 |
| Harley-Davidson | 2002 | Road King Screamin Eagle FLHRSEI |
| Harley-Davidson | 2003 | Road King Screamin Eagle FLHRSEI2 |
| Harley-Davidson | 2007 | Road King Screamin Eagle FLHRSE3 |
| Harley-Davidson | 2008 | Road King Screamin Eagle FLHRSE4 |
| Harley-Davidson | 2010 | Softail Convertible CVO FLSTSE |
| Harley-Davidson | 2011 | Softail Convertible CVO FLSTSE2 |
| Harley-Davidson | 2012 | Softail Convertible CVO FLSTSE3 |
| Harley-Davidson | 2003 | Softail Deuce Screamin Eagle FXSTDSE |
| Harley-Davidson | 2004 | Softail Deuce Screamin Eagle FXSTDSE2 |
| Harley-Davidson | 2009 | Softail Springer CVO FXSTSSE3 |
| Harley-Davidson | 2007 | Softail Springer Screamin Eagle FXSTSSE |
| Harley-Davidson | 2008 | Softail Springer Screamin Eagle FXSTSSE2 |
| Harley-Davidson | 2010–2016 | Street Glide CVO FLHXSE |
| Harley-Davidson | 2011 | Street Glide CVO FLHXSE2 |
| Harley-Davidson | 2012 | Street Glide CVO FLHXSE3 |
| Harley-Davidson | 2017 | Street Glide CVO 114 FLHXSE |
| Harley-Davidson | 1999 | Super Glide Screamin Eagle FXR3 |
| Harley-Davidson | 1999 | Super Glide Screamin Eagle FXR2 |
| Harley-Davidson | 2000 | Super Glide Screamin Eagle FXR4 |
Dyna 23 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2008–2017 | Dyna Fat Bob FXDF |
| Harley-Davidson | 1999–2017 | Dyna Low Rider FXDL |
| Harley-Davidson | 2004–2006 | Dyna Low Rider FXDLI |
| Harley-Davidson | 2016–2017 | Dyna Low Rider S FXDLS |
| Harley-Davidson | 2006 | Dyna Street Bob FXDBI |
| Harley-Davidson | 2007–2017 | Dyna Street Bob FXDB |
| Harley-Davidson | 2013–2016 | Dyna Street Bob Factory Custom FXDBP |
| Harley-Davidson | 2013 | Dyna Street Bob Limited FXDBA |
| Harley-Davidson | 2016 | Dyna Street Bob Limited FXDBC |
| Harley-Davidson | 2014–2015 | Dyna Street Bob Special FXDBB |
| Harley-Davidson | 1999–2010 | Dyna Super Glide FXD |
| Harley-Davidson | 2004–2006 | Dyna Super Glide FXDI |
| Harley-Davidson | 2006 | Dyna Super Glide 35th Anniversary FXDI35 |
| Harley-Davidson | 1999–2000 | Dyna Super Glide Convertible FXDS-CON |
| Harley-Davidson | 2005–2006 | Dyna Super Glide Custom FXDCI |
| Harley-Davidson | 2005–2014 | Dyna Super Glide Custom FXDC |
| Harley-Davidson | 2013 | Dyna Super Glide Custom 110th Anniversary FXDC |
| Harley-Davidson | 1999–2004 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 2004–2005 | Dyna Super Glide Sport FXDXI |
| Harley-Davidson | 2001–2003 | Dyna Super Glide T-Sport FXDXT |
| Harley-Davidson | 2012–2016 | Dyna Switchback FLD |
| Harley-Davidson | 1999–2017 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 2004–2006 | Dyna Wide Glide FXDWGI |
Softail 34 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2011–2013 | Blackline FXS |
| Harley-Davidson | 2013–2017 | Breakout FXSB |
| Harley-Davidson | 2008–2011 | Cross Bones Springer FLSTSB |
| Harley-Davidson | 1999–2017 | Fat Boy FLSTF |
| Harley-Davidson | 2001–2006 | Fat Boy FLSTFI |
| Harley-Davidson | 2005 | Fat Boy 15th Anniversary FLSTFI |
| Harley-Davidson | 2010–2017 | Fat Boy Lo FLSTFB |
| Harley-Davidson | 2013 | Fat Boy Lo 110th Anniversary FLSTFB |
| Harley-Davidson | 2016–2017 | Fat Boy S FLSTFBS |
| Harley-Davidson | 2010–2017 | Fat Boy Special FLSTFB |
| Harley-Davidson | 2013 | Fat Boy Special 110th Anniversary FLSTFB |
| Harley-Davidson | 2006 | Heritage Softail FLST |
| Harley-Davidson | 2006 | Heritage Softail FLSTI |
| Harley-Davidson | 1999–2017 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2001–2006 | Heritage Softail Classic FLSTCI |
| Harley-Davidson | 2013 | Heritage Softail Classic 110th Anniversary FLSTC |
| Harley-Davidson | 1999–2003 | Heritage Softail Springer FLSTS |
| Harley-Davidson | 2003 | Heritage Softail Springer FLSTSI |
| Harley-Davidson | 2008–2009 | Rocker FXCW |
| Harley-Davidson | 2008–2011 | Rocker C FXCWC |
| Harley-Davidson | 1999–2007 | Softail FXST |
| Harley-Davidson | 2003–2006 | Softail FXSTI |
| Harley-Davidson | 2007–2010 | Softail Custom FXSTC |
| Harley-Davidson | 2005–2017 | Softail Deluxe FLSTN |
| Harley-Davidson | 2005–2006 | Softail Deluxe FLSTNI |
| Harley-Davidson | 2000–2007 | Softail Deuce FXSTD |
| Harley-Davidson | 2001–2006 | Softail Deuce FXSTDI |
| Harley-Davidson | 1999–2009 | Softail Night Train FXSTB |
| Harley-Davidson | 2003–2006 | Softail Night Train FXSTBI |
| Harley-Davidson | 2016–2017 | Softail Slim S FLSS |
| Harley-Davidson | 1999–2005 | Softail Springer FXSTS |
| Harley-Davidson | 2003–2005 | Softail Springer FXSTSI |
| Harley-Davidson | 2005–2007 | Softail Springer Classic FLSTSC |
| Harley-Davidson | 2005–2006 | Softail Springer Classic FLSTSCI |
Sportster 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2007 | 50th Anniversary XL50 |
Touring 39 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2009 | Electra Glide FLHT |
| Harley-Davidson | 2004–2006 | Electra Glide FLHTI |
| Harley-Davidson | 1999–2006 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 2002–2013 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1999–2006 | Electra Glide Ultra Classic FLHTCUI |
| Harley-Davidson | 2007–2016 | Electra Glide Ultra Classic FLHTCU |
| Harley-Davidson | 2017 | Electra Glide Ultra Classic 107 FLHTCU |
| Harley-Davidson | 2015–2016 | Electra Glide Ultra Classic Low FLHTCUL |
| Harley-Davidson | 2010–2016 | Electra Glide Ultra Limited FLHTK |
| Harley-Davidson | 2017 | Electra Glide Ultra Limited 107 FLHTK |
| Harley-Davidson | 2013 | Electra Glide Ultra Limited 110th Anniversary FLHTK |
| Harley-Davidson | 2015–2016 | Electra Glide Ultra Limited Low FLHTKL |
| Harley-Davidson | 2017 | Electra Glide Ultra Limited Low 107 FLHTKL |
| Harley-Davidson | 1999–2010 | Road Glide FLTR |
| Harley-Davidson | 1999–2006 | Road Glide FLTRI |
| Harley-Davidson | 2015–2016 | Road Glide FLTRX |
| Harley-Davidson | 2017 | Road Glide 107 FLTRX |
| Harley-Davidson | 2011–2013 | Road Glide Custom FLTRX |
| Harley-Davidson | 2015–2016 | Road Glide Special FLTRXS |
| Harley-Davidson | 2017 | Road Glide Special 107 FLTRXS |
| Harley-Davidson | 2011–2016 | Road Glide Ultra FLTRU |
| Harley-Davidson | 2017 | Road Glide Ultra 107 FLTRU |
| Harley-Davidson | 2015–2016 | Road Glide Ultra CVO FLTRUSE2 |
| Harley-Davidson | 1999–2006 | Road King FLHRI |
| Harley-Davidson | 1999–2016 | Road King FLHR |
| Harley-Davidson | 2017 | Road King 107 FLHR |
| Harley-Davidson | 2013 | Road King 110th Anniversary FLHR |
| Harley-Davidson | 1999–2006 | Road King Classic FLHRCI |
| Harley-Davidson | 2004–2016 | Road King Classic FLHRC |
| Harley-Davidson | 2017 | Road King Classic 107 FLHRC |
| Harley-Davidson | 2004–2007 | Road King Custom FLHRS |
| Harley-Davidson | 2004–2006 | Road King Custom FLHRSI |
| Harley-Davidson | 2014 | Road King CVO FLHRSE6 |
| Harley-Davidson | 2017 | Road King Special 107 FLHRXS |
| Harley-Davidson | 2006–2016 | Street Glide FLHX |
| Harley-Davidson | 2006 | Street Glide FLHXI |
| Harley-Davidson | 2017 | Street Glide 107 FLHX |
| Harley-Davidson | 2014–2016 | Street Glide Special FLHXS |
| Harley-Davidson | 2017 | Street Glide Special 107 FLHXS |
Trike 6 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2015–2016 | Freewheeler FLRT |
| Harley-Davidson | 2017 | Freewheeler 107 FLRT |
| Harley-Davidson | 2010–2011 | Trike Street Glide FLHXXX |
| Harley-Davidson | 2010–2016 | Trike Tri Glide Ultra Classic FLHTCUTG |
| Harley-Davidson | 2017 | Trike Tri Glide Ultra Classic 107 FLHTCUTG |
| Harley-Davidson | 2013 | Trike Tri Glide Ultra Classic 110th Anniversary FLHTCUTG |
55ci (883cc) Ohv 4 Cycle-Twin 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2010–2013 | Forty-Eight XL |
| Harley-Davidson | 2009–2013 | Iron XL |
| Harley-Davidson | 2005–2011 | Low XL |
| Harley-Davidson | 2007–2012 | Nightster XL |
| Harley-Davidson | 2002–2013 | Roadster XL |
| Harley-Davidson | 2012–2013 | Seventy-Two XL |
| Harley-Davidson | 1996–2003 | Sport XL |
| Harley-Davidson | 1986–2003 | Sportster XLH |
| Harley-Davidson | 2005–2009 | Sportster XL |
| Harley-Davidson | 1998–2003 | Sportster 53 Custom XL |
| Harley-Davidson | 1996–2013 | Sportster Custom XL |
| Harley-Davidson | 2013 | Sportster Custom 110th Anniversary XL |
| Harley-Davidson | 1988–1995 | Sportster Deluxe XLH |
| Harley-Davidson | 1988–2003 | Sportster Hugger XLH |
| Harley-Davidson | 2011–2013 | Super Low XL |
74ci (1200cc) Ohv Twin 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2012–2017 | Softail Slim FLS |
Related Products
View all →
More from Drag Specialties
View all →
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.