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Moroso Ultra 40 Ignition Wire Set

(5 reviews)

Item: 346188

$28.13 – $65.69

Select Your Vehicle - Fitment Guaranteed

Moroso Ultra 40 Ignition Wire Set


All Moroso spark plug wires feature silicone plug boots that withstand high temperatures (up to 600 degrees), and have a silicone jacket to reduce heat and chafing. Locking stainless steel terminals that stay connected under high vibration and are fully compatible with the Harley-Davidson ION sensing coils used on virtually all late model bikes. Moroso High Performance Ignition wire combines state of the art engineering with the finest made in the USA workmanship and the very highest standards of quality control available.

Ultra 40

  • 8.65mm diameter, 40 ohms per foot resistance

Features of these 8.65mm wires include:

  • 100% Compatible with HD ION Sense Ignition Coils
  • Poly-paraphenylene terephthalamide core that's four times stronger than Aramid cores
  • Class-leading 40 ohms of resistance per foot
  • Nickel copper alloy conductors for superior spark energy transfer
  • Extra-thick EPDM layer for greater dielectric strength
  • High-temperature silicone boots that can withstand heat up to 600 degrees
  • Locking stainless steel plug terminals
  • Made in the USA
Specification Details
Color Varies (make selection above)
Country of Origin USA
Diameter Varies (make selection above)
Resistance Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FL 80 Electra Glide 1980
  • FLD Dyna Switchback 2012-2016
  • FLDE Softail Deluxe 2018-2020
  • FLFB Softail Fat Boy 2018-2019
  • FLFBS Softail Fat Boy 114 2018-2020
  • FLH 80 Electra Glide Heritage 1981-1983
  • FLH Electra Glide 1978-1984
  • FLHC Electra Glide Classic 1979-1982
  • FLHC Softail Heritage Classic 2018-2020
  • FLHCS Softail Heritage Classic 114 2018-2020
  • FLHR Electra Glide Road King 1994
  • FLHR Road King 1995-2021
  • FLHRC Road King Classic 2007-2013
  • FLHRS Road King Custom 2004-2007
  • FLHRXS Road King Special 2017-2023
  • FLHS Electra Glide Sport 1980-1984, 1987-1993
  • FLHT Electra Glide 1982-1983, 1986-1987
  • FLHTC Electra Glide Classic 1983-2005, 2007-2013
  • FLHTCU Electra Glide Ultra Classic 2017-2019
  • FLHTCU Ultra Classic Electra Glide 1989-2016
  • FLHTCUL Electra Glide Ultra Classic Low 2015-2016
  • FLHTCUTG Tri Glide Ultra Classic 2009-2024
  • FLHTK Electra Glide Ultra Limited 2010-2023
  • FLHTKL Electra Glide Ultra Limited Low 2015-2019
  • FLHX Electra Glide Special 1984
  • FLHX Street Glide 2006-2023
  • FLHXS Street Glide Special 2014-2023
  • FLHXXX Street Glide Trike 2010-2011
  • FLRT Freewheeler 2015-2022
  • FLS Softail Slim 2012-2017
  • FLSB Softail Sport Glide 2018-2020
  • FLSL Softail Slim 2018-2020
  • FLSS Softail Slim S 2016-2017
  • FLST Heritage Softail 1986-1990, 2006
  • FLSTC Heritage Softail Classic 1988-2017
  • FLSTF Softail Fat Boy 1990-2017
  • FLSTFB Softail Fat Boy Lo 2010-2016
  • FLSTFBS Softail Fat Boy S 2016-2017
  • FLSTN Heritage Softail Nostalgia 1993
  • FLSTN Softail Deluxe 2005-2017
  • FLSTS Heritage Springer Softail 1997-2003
  • FLSTSB Softail Cross Bones 2008-2011
  • FLSTSC Softail Springer Classic 2005-2007
  • FLT Tour Glide 1979-1983
  • FLTC Tour Glide Classic 1980-1991
  • FLTCU Ultra Classic Tour Glide 1989-1995
  • FLTD Tour Glide 1983
  • FLTR Road Glide 1998-2004, 2007-2009
  • FLTRU Road Glide Ultra 2011-2013, 2016-2019
  • FLTRX Road Glide 2015-2023
  • FLTRX Road Glide Custom 2010-2013
  • FLTRXS Road Glide Special 2015-2023
  • FX 1200 Super Glide 1978
  • FXB Sturgis 1980-1982
  • FXBB Softail Street Bob 2018-2020
  • FXBR Softail Breakout 2018-2019
  • FXBRS Softail Breakout 114 2018-2020
  • FXCW Softail Rocker 2008-2009
  • FXCWC Softail Rocker C 2008-2011
  • FXD Dyna Super Glide 1995-2005, 2007-2010
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Street Bob 2007-2017
  • FXDB Dyna Sturgis 1991
  • FXDC Dyna Glide Custom 1992
  • FXDC Dyna Super Glide Custom 2005, 2007-2014
  • FXDF Dyna Fat Bob 2008-2017
  • FXDG Disc Glide 1983
  • FXDL Dyna Low Rider 1993-2005, 2007-2009, 2014-2017
  • FXDLS Dyna Low Rider S 2016-2017
  • FXDR Softail 114 2019-2020
  • FXDS-CONV Dyna Convertible 1994-2000
  • FXDWG Dyna Wide Glide 1993-2005, 2007-2008, 2010-2017
  • FXDX Dyna Super Glide Sport 1999-2005
  • FXDXT Dyna Super Glide T-Sport 2001-2003
  • FXE 1200 Super Glide 1978-1980
  • FXE Super Glide 1981-1983
  • FXEF Super Glide Fat Bob 1979-1981
  • FXFB Softail Fat Bob 2018-2019
  • FXFBS Softail Fat Bob 114 2018-2020
  • FXLR Low Rider Custom 1991-1994
  • FXLR Softail Low Rider 2018-2020
  • FXLRS Softail Low Rider S 2020
  • FXR Super Glide 1986-1994
  • FXR Super Glide II 1982-1983
  • FXRC Low Glide 1985
  • FXRC Low Rider Chrome 1987
  • FXRD Grand Touring Edition 1986
  • FXRDG Disc Glide 1984
  • FXRS Low Glide 1982-1992
  • FXRS Super Glide II 1982-1983
  • FXRS-CONV Low Rider Convertible 1990-1993
  • FXRS-SP Low Rider Sport Edition 1986-1993
  • FXRT Sport Glide 1983-1992
  • FXS Softail Blackline 2011-2013
  • FXS Super Glide Low Rider 1978-1979, 1981-1982
  • FXSB Low Rider 1983
  • FXSB Softail Breakout 2013-2017
  • FXST Softail 1984-1990
  • FXST Softail Standard 1999-2007
  • FXSTB Softail Night Train 1999-2009
  • FXSTC Softail Custom 1986-1999, 2007-2010
  • FXSTD Softail Deuce 2000-2007
  • FXSTS Springer Softail 1988-2006
  • FXSTSB Softail Bad Boy 1995-1997
  • FXWG Wide Glide 1980-1983
  • Sportster XLX 1983
  • XG500 Street 500 2015-2020
  • XG750 Street 750 2015-2020
  • XG750A Street Rod 750 2017-2020
  • XL1200C Sportster 1200 Custom 1996-2019
  • XL1200CX Sportster Roadster 2016-2020
  • XL1200L Sportster 1200 Low 2006-2011
  • XL1200N Sportster 1200 Nightster 2007-2012
  • XL1200R Sportster 1200 Roadster 2004-2008
  • XL1200S Sportster 1200 Sport 1998-2003
  • XL1200T Sportster SuperLow 2014-2018
  • XL1200V Sportster Seventy-Two 2012-2016
  • XL1200X Sportster Forty-Eight 2010-2022
  • XL883 Sportster 883 2004-2008
  • XL883C Sportster 883 Custom 1999-2009
  • XL883L Sportster SuperLow 2011-2019
  • XL883N Sportster Iron 883 2009-2022
  • XL883R Sportster 883R 2002-2003, 2005-2007
  • XLCH1000 Sportster 1000 1978-1980
  • XLH Sportster 1979-1980, 1982-1983
  • XLH1000 Sportster Standard 1978
  • XLH1100 Sportster 1100 1986-1987
  • XLH1200 Sportster 1200 1988-2003
  • XLH883 Sportster 883 1986-2003
  • XLH883DLX Sportster 883 Deluxe 1986-1995
  • XLH883HUG Sportster 883 Hugger 1987-2003
  • XLS1000 Sportster Roadster 1979-1983
  • XLT1000 Sportster Touring 1980
  • XLX1000 Sportster 1000 1983

Customer Reviews

Write Review

Moroso worth every $$$

By   on  Verified Purchaser

For the money cannot beat it, I got to throw my junk wires out and quit dealing with losing spark randomly. 100% worth it


Darn nice

By   on  Verified Purchaser

Best wires for competition Harley.


Moroso Wires

By   on 

These wires fit my bike perfectly!


Heavy duty

By   on  Verified Purchaser

These are very heavy duty and seems to be the best value for Harley wires.


Well worth it

By   on  Verified Purchaser

Fantastic.


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