Best Harley Spark Plug Wires Available Right Now (2022)

Sometimes it might be quite difficult to find the best harley spark plug wires. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this harley spark plug wires buying guide.

Our Top 20 Picks:

# Preview Product
1 AIP Electronics Dragon Fire Race 10.2mm Spark Plug Wire Set for 1999-2017 Harley DYNA Models OEM Fit PWJ188 AIP Electronics Dragon Fire Race 10.2mm Spark Plug Wire Set for 1999-2017 Harley DYNA Models OEM Fit...
2 NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair) NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
3 Aokus Blue 10mm Spark Plug Wires Compatible with Harley Davidson 883 1200 Sportster XL 86-03 Aokus Blue 10mm Spark Plug Wires Compatible with Harley Davidson 883 1200 Sportster XL 86-03
4 Aokus 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Red) Aokus 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail...
5 Spark Plug Wires Black 8.8mm For Davidson 883 1200 Sportster XL 86-03,‎2104-0143,144025,Black, Vanshly Spark Plug Wires Black 8.8mm For Davidson 883 1200 Sportster XL 86-03,‎2104-0143,144025,Black,...
6 Motoforti 2 Pcs 10.4mm 10mm Spark Plug Wire Kit for Harley Davidson Big Twin FXD Dyna 2000-2017 for Harley-Davidson Softail 1999-2017 Spark Plug Wires Motorcycle DYNA-409RD Red Silicone Motoforti 2 Pcs 10.4mm 10mm Spark Plug Wire Kit for Harley Davidson Big Twin FXD Dyna 2000-2017 for...
7 XtremeAmazing Red 10.4mm Spark Plug Wires Set Compatible with Harley Davidson Big Twin FXD Dyna Softail XtremeAmazing Red 10.4mm Spark Plug Wires Set Compatible with Harley Davidson Big Twin FXD Dyna...
8 Tavaski 10.4mm 10mm Spark Plug Wire Kit Fit for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail, Replace DYNA-409RD - Red Silicone Tavaski 10.4mm 10mm Spark Plug Wire Kit Fit for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail,...
9 TONRYCUE Spark Plug Wire Compatible with Harley Davidson Big Twin 1999-2019, and for FXD Dyna Softail (Red) TONRYCUE Spark Plug Wire Compatible with Harley Davidson Big Twin 1999-2019, and for FXD Dyna...
10 10mm Spark Plug Wire Fits for Harley Davidson Sportster 883 1200 XL 1986-2003, 2104-0143 - Blue Silicone 10mm Spark Plug Wire Fits for Harley Davidson Sportster 883 1200 XL 1986-2003, 2104-0143 - Blue...
11 Aokus Black 8.8mm Spark Plug Wires Compatible with Harley Davidson FXST FLST Softail FLS 00-17 Aokus Black 8.8mm Spark Plug Wires Compatible with Harley Davidson FXST FLST Softail FLS 00-17
12 TONRYCUE 10mm Spark Plug Wires Compatible with Harley Davidson Softail FXST FLST 1984-1999 TONRYCUE 10mm Spark Plug Wires Compatible with Harley Davidson Softail FXST FLST 1984-1999
13 TONRYCUE 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 1999-2019, and for FXD Dyna Softail TONRYCUE 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 1999-2019, and for FXD...
14 Red Spark Plug Wires Black 8.8mm Compatible with Davidson 883 1200 Sportster XL 86-03,2104-0143, Red Color, Vanshly Red Spark Plug Wires Black 8.8mm Compatible with Davidson 883 1200 Sportster XL 86-03,2104-0143, Red...
15 TONRYCUE Spark Plug Wires for Harley Davidson Big Twin 1999-2019 FXD Dyna FXDWG Softail TONRYCUE Spark Plug Wires for Harley Davidson Big Twin 1999-2019 FXD Dyna FXDWG Softail
16 Tavaski 10.4mm 10mm Spark Plug Wire Kit Fit for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail, Replace DYNA-409BL - Blue Silicone Tavaski 10.4mm 10mm Spark Plug Wire Kit Fit for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail,...
17 Motoforti 2 Pcs 10.4mm 10mm Spark Plug Wire Kit for Harley Davidson Big Twin FXD Dyna 2000-2017 for Harley-Davidson Softail 1999-2017 Spark Plug Wires Motorcycle DYNA-409BL Blue Silicone Motoforti 2 Pcs 10.4mm 10mm Spark Plug Wire Kit for Harley Davidson Big Twin FXD Dyna 2000-2017 for...
18 Aokus 8.8mm Spark Plug Wire Set 144022 Compatible with Harley Davidson FLH 80 1200 lectra Glide FLHS 80 Electra Glide Sport FXDB Dyna FXDS-Conv FXE 1200 Aokus 8.8mm Spark Plug Wire Set 144022 Compatible with Harley Davidson FLH 80 1200 lectra Glide FLHS...
19 ALLMOST Hi Performance 18-5227-1 Premium 9' Marine 7MM Spark Plug Wire Lead Compatible with Mercury/Mariner Outboard Engines Replaces Mercury 84-813715A1,ZF696 ALLMOST Hi Performance 18-5227-1 Premium 9" Marine 7MM Spark Plug Wire Lead Compatible with...
20 Aokus 10mm Black Spark Plug Wires Compatible with Harley-Davidson Softail 1984-1999 FXST/FLST Aokus 10mm Black Spark Plug Wires Compatible with Harley-Davidson Softail 1984-1999 FXST/FLST

The 20 Best Harley Spark Plug Wires Reviews:

Bestseller No. 1
AIP Electronics Dragon Fire Race 10.2mm Spark Plug Wire Set for 1999-2017 Harley DYNA Models OEM Fit PWJ188
  • MANUFACTURER: Dragon Fire Performance MODEL: Sport Series Direct Factory Fit
  • WIRE DIAMETER & RESISTANCE: 10mm 150 Ohms per foot
  • Compatible with 1999-2017 Harley Davidson Dyna Models
  • FEATURES: Industry Leading High Heat Silicone - High Performance Coated Copper-Nickel Alloy (CuNi) (3:1) Conductor - Precision Wound at 100 Turns per inch (+/- 10%) for Maximum Voltage Transfer and Superior RFI/EMI Protection - Kevlar Core - High Tensile Strength Fiberglass Protection Mesh - High Temp. Rated to 600F - Extra Thick Boot Wall Design - Long Service Life
  • WIRE LENGTHS - 1x8" 1x20"
SaleBestseller No. 2
NGK Iridium IX DCPR7EIX Spark Plugs for 1999-2016 Harley Davidson Twin Cam (Pair)
  • Come pre-gapped
  • The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
  • Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
  • The ultimate in spark plug technology and performance from the industry leader
  • New metal shell plating has enhanced anti corrosion qualities
Bestseller No. 3
Aokus Blue 10mm Spark Plug Wires Compatible with Harley Davidson 883 1200 Sportster XL 86-03
  • Fitment:1996 - 2003 Harley-DavidsonXL 1200C Custom, 1996 - 1997 Harley-DavidsonXL 1200S Sport, 1999 - 2003 Harley-DavidsonXL 883C Custom, 2002 - 2003 Harley-DavidsonXL 883R, 1986 - 1987 Harley-DavidsonXLH 1100, 1988 - 2003 Harley-DavidsonXLH 1200, 1986 - 2003 Harley-DavidsonXLH 883, 1986 - 1995 Harley-DavidsonXLH 883 Deluxe, 1987 - 2003 Harley-DavidsonXLH 883 Hugger
  • 10mm high performance ignition wires available for street or race applications
  • Perfect Fitment, directly replacement. Made of high quality material, reliable quality and durable.
  • Constructed with silicone throughout the jacket, insulation and core to deliver high-temperature resistance
  • Package includes: 2 * blue Spark Plug Wires (one 8." and one 20" long wires pre-crimped)
Bestseller No. 4
Aokus 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 99-19 FXD Dyna Softail (Red)
  • ●Replace for Manufacturer Part Number: DYNA-409RD
  • ●Fits for virtually like factory location on cylinder Harley-Davidson or Big-Twin that has the coil mounted on the seat post.10.4mm high performance ignition wires available for street or race applications
  • ●Great for replacement wire, relocation kits, new look, bobbers, scramblers, cafe racer etc
  • ●Perfect Fitment, directly replacement. Made of high quality material, reliable quality and durable.
  • ●Package includes: 2 * Red Spark Plug Wires (one 8" and one 20" long wires pre-crimped)
SaleBestseller No. 5
Spark Plug Wires Black 8.8mm For Davidson 883 1200 Sportster XL 86-03,‎2104-0143,144025,Black, Vanshly
  • √【OEM Part Number】:2104-0143
  • √【Compatible with】:2002-2003 Davidson 883 Roadster XLR ,1996-2003 Harley-Davidson 1200 Custom XLC ,1999-2003 Harley-Davidson 883 Custom XLC ,1988-2003 Harley-Davidson Sportster 1200 XLH ,1986-2003 Harley-Davidson Sportster 883 XLH ,1986-1987 Harley-Davidson Sportster 1100 XLH ,1986-1995 Harley-Davidson 883 Deluxe XLH ,1987-2003 Harley-Davidson 883 Hugger XLH ,1996-1997 Harley-Davidson 1200 Sport XLS ‎
  • √【High-Quality】:The spark plug wire kit is made of high-quality materials, with wear resistance, high reliability, long service life and stable performance. Helps provide maximum voltage and ensures final performance.
  • √【Function description】:The spark plug wire is used as the medium between the ignition coil and the spark plug to power the engine. It can transfer the high-pressure fire distributed by the distributor to the spark plug and then drive the engine to rotate. Engine spark plug wire damage will cause engine fire and cause engine shaking. Timely replacement of damaged spark plug wires can prolong the service life of the engine and reduce fuel waste.
  • √【Warm Tips】:If you encounter problems during the installation process, please contact us immediately,Please make sure your model matches what is listed he
Bestseller No. 6
Motoforti 2 Pcs 10.4mm 10mm Spark Plug Wire Kit for Harley Davidson Big Twin FXD Dyna 2000-2017 for Harley-Davidson Softail 1999-2017 Spark Plug Wires Motorcycle DYNA-409RD Red Silicone
  • [OE Number] DYNA-409RD. This is available for street or race applications.
  • [Fitment] For Harley-davidson Dyna FXD 2000-2017, For Harley-davidson Softail 1999-2017. Normally fit for like factory location on cylinder for Harley-Davidson or Big-Twin which has the coil mounted on the seat post. Please confirm make/model/year and size of the spark plug before purchase.
  • [Features] Come with 10.4mm & 10mm rubber ends, black 90 degree and straight boots for pre-crimped. Adopted with silicone material for whole jacket, insulation and core to bear high-temperature.
  • [Function] Prolong the service time of the engine and reduce fuel waste. A replacement for wire, relocation kits, new look, bobbers, scramblers, cafe racer etc.
  • [Package] Include 2x Spark plug wire pre-crimped. Please connect it with original way or search professional video when replace it in doubt.
Bestseller No. 7
XtremeAmazing Red 10.4mm Spark Plug Wires Set Compatible with Harley Davidson Big Twin FXD Dyna Softail
  • Color: Red
  • Great for replacement wire, relocation kits, new look, bobbers, scramblers, cafe racer etc.
  • Compatible with Harley-Davidson Dyna 2000-2017, Softail 1999-2017
  • Package Contents: 1x 8" long 10.4mm width wire pre-crimped, 1x 20" long 10.4mm width wire pre-crimped
Bestseller No. 8
Tavaski 10.4mm 10mm Spark Plug Wire Kit Fit for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail, Replace DYNA-409RD - Red Silicone
  • Fitment- The spark plug wire kit fit for Harley-Davidson Dyna and fit for Harley-Davidson Softail.Fits for virtually like factory location on cylinder Harley-Davidson or Big-Twin that has the coil mounted on the seat post. Warm Tips:Please check the description for the specific model.
  • Perfect Fit - The spark plug wire kit is great for replacement wire, relocation kits, new look, bobbers, scramblers, cafe racer etc. Replace number is DYNA-409RD.
  • Function - Timely replacement of the damaged spark plug wire can prolong the service life of the engine and reduce fuel waste.10.4mm high performance ignition wires available for street or race applications.
  • High Quality Material - The spark plug wire kit made of high-quality materials, wear-resistant, high reliability, long use time, and stable performance.reliable quality and durable.
  • You will Get: 2 * Red Spark Plug Wires (one 8" and one 20" long wires pre-crimped).
Bestseller No. 9
TONRYCUE Spark Plug Wire Compatible with Harley Davidson Big Twin 1999-2019, and for FXD Dyna Softail (Red)
  • Compatible with: for Harley-davidson Dyna 2000-2017;Softail 1999-2017
  • Material: Made of high quality material, reliable quality and durable
  • Package Included: 1 x 8" long wire pre-crimped and 1* 20" long wires pre-crimped
  • Note: Please make sure the car's model if fit your car or not before you order
Bestseller No. 10
10mm Spark Plug Wire Fits for Harley Davidson Sportster 883 1200 XL 1986-2003, 2104-0143 - Blue Silicone
  • 10mm Spark Plug Wire Fits for Harley Davidson Sportster 883 1200 XL 1986-2003
  • The spark plug wire kit fit for Harley Davidson Sportster 883 1200 XL 1986-2003. Warm Tips:Please check the description for the specific model.
  • Function - Timely replacement of the damaged spark plug wire can prolong the service life of the engine and reduce fuel waste.10mm high performance ignition wires available for street or race applications.
  • High Quality Material - The spark plug wire kit made of high-quality silicone throughout the jacket, wear-resistant, high reliability, long use time, and stable performance.reliable quality and durable.
  • You will Get - 2 * Blue Spark Plug Wires (one 8" and one 20" long wires pre-crimped).
Bestseller No. 11
Aokus Black 8.8mm Spark Plug Wires Compatible with Harley Davidson FXST FLST Softail FLS 00-17
  • ▲Compatible with Harley Davidson FXST FLST Softail FLS 2000-2017
  • ▲Rated at SAE Class E J2031 with a continuous operating temperature of 450° F
  • ▲Constructed with silicone throughout the jacket, insulation and core to deliver high-temperature resistance
  • ▲Perfect Fitment, directly replacement. Made of high quality material, reliable quality and durable.
  • ▲Package includes: 2 * black Spark Plug Wires (one 8" and one 20" long wires pre-crimped)
Bestseller No. 12
TONRYCUE 10mm Spark Plug Wires Compatible with Harley Davidson Softail FXST FLST 1984-1999
  • Fitment: for Harley Davidson Softail 1984-1999
  • Material: made of high quality material, reliable quality and durable
  • Package Included: 2* red spark plug wires
  • Note: Please make sure the car's model if fit your car or not before you order
SaleBestseller No. 13
TONRYCUE 10.4mm 10mm Spark Plug Wire Compatible with Harley Davidson Big Twin 1999-2019, and for FXD Dyna Softail
  • Compatible with: for Harley-davidson Dyna 2000-2017;Softail 1999-2017
  • Material: Made of high quality material, reliable quality and durable
  • Package Included: 1 x 8" long wire pre-crimped and 1* 20" long wires pre-crimped
  • Note: Please make sure the size of the spark plug if fit your car or not before you order
Bestseller No. 14
Red Spark Plug Wires Black 8.8mm Compatible with Davidson 883 1200 Sportster XL 86-03,2104-0143, Red Color, Vanshly
  • √【OEM Part Number】:Red,2104-0143
  • √【Compatible with】:2002-2003 Harley-Davidson 883 Roadster XLR ,1996-2003 Harley-Davidson 1200 Custom XLC ,1999-2003 Harley-Davidson 883 Custom XLC ,1988-2003 Harley-Davidson Sportster 1200 XLH ,1986-2003 Harley-Davidson Sportster 883 XLH ,1986-1987 Harley-Davidson Sportster 1100 XLH ,1986-1995 Harley-Davidson 883 Deluxe XLH ,1987-2003 Harley-Davidson 883 Hugger XLH ,1996-1997 Harley-Davidson 1200 Sport XLS ‎
  • √【High-Quality】:The spark plug wire kit is made of high-quality materials, with wear resistance, high reliability, long service life and stable performance. Helps provide maximum voltage and ensures final performance.
  • √【Function description】:The spark plug wire is used as the medium between the ignition coil and the spark plug to power the engine. It can transfer the high-pressure fire distributed by the distributor to the spark plug and then drive the engine to rotate. Engine spark plug wire damage will cause engine fire and cause engine shaking. Timely replacement of damaged spark plug wires can prolong the service life of the engine and reduce fuel waste.
  • √【Warm Tips】:If you encounter problems during the installation process, please contact us immediately,Please make sure your model matches what is listed he
Bestseller No. 15
TONRYCUE Spark Plug Wires for Harley Davidson Big Twin 1999-2019 FXD Dyna FXDWG Softail
  • Fitment: for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail
  • Material: Made of high quality rubber material, Constructed with silicone throught the jacket, insulation and core to deliver high-temperature resistance
  • Rated Temperature: Rated at SAE Class E J2031 with a continuous operating temperature of 450° F
  • Package Included: 1 * spark plug wires
Bestseller No. 16
Tavaski 10.4mm 10mm Spark Plug Wire Kit Fit for Harley Davidson Big Twin 1999-2019 FXD Dyna Softail, Replace DYNA-409BL - Blue Silicone
  • Fitment- The spark plug wire kit fit for Harley-Davidson Dyna and fit for Harley-Davidson Softail.Fits for virtually like factory location on cylinder Harley-Davidson or Big-Twin that has the coil mounted on the seat post. Warm Tips:Please check the description for the specific model.
  • Perfect Fit - The spark plug wire kit is great for replacement wire, relocation kits, new look, bobbers, scramblers, cafe racer etc. Replace number is DYNA-409BL.
  • Function - Timely replacement of the damaged spark plug wire can prolong the service life of the engine and reduce fuel waste.10.4mm high performance ignition wires available for street or race applications.
  • High Quality Material - The spark plug wire kit made of high-quality materials, wear-resistant, high reliability, long use time, and stable performance.reliable quality and durable.
  • You will Get - 2 * Blue Spark Plug Wires (one 8" and one 20" long wires pre-crimped).
Bestseller No. 17
Motoforti 2 Pcs 10.4mm 10mm Spark Plug Wire Kit for Harley Davidson Big Twin FXD Dyna 2000-2017 for Harley-Davidson Softail 1999-2017 Spark Plug Wires Motorcycle DYNA-409BL Blue Silicone
  • [OE Number] DYNA-409BL. This is available for street or race applications.
  • [Fitment] For Harley-davidson Dyna FXD 2000-2017, For Harley-davidson Softail 1999-2017. Normally fit for like factory location on cylinder for Harley-Davidson or Big-Twin which has the coil mounted on the seat post. Please confirm make/model/year and size of the spark plug before purchase.
  • [Features] Come with 10.4mm & 10mm rubber ends, black 90 degree and straight boots for pre-crimped. Adopted with silicone material for whole jacket, insulation and core to bear high-temperature.
  • [Function] Prolong the service time of the engine and reduce fuel waste. A replacement for wire, relocation kits, new look, bobbers, scramblers, cafe racer etc.
  • [Package] Include 2x Spark plug wire pre-crimped. Please connect it with original way or search professional video when replace it in doubt.
Bestseller No. 18
Aokus 8.8mm Spark Plug Wire Set 144022 Compatible with Harley Davidson FLH 80 1200 lectra Glide FLHS 80 Electra Glide Sport FXDB Dyna FXDS-Conv FXE 1200
  • ▲Part number:144022
  • ▲Fits for many Harley Davidson models ( please refer to the below description)
  • ▲Constructed with silicone throughout the jacket, insulation and core to deliver high temperature resistance.
  • ▲Rated at SAE Class E J2031 with a continuous operating temperature of 450 F.
  • ▲DIAMETER8.8 MM
Bestseller No. 19
ALLMOST Hi Performance 18-5227-1 Premium 9" Marine 7MM Spark Plug Wire Lead Compatible with Mercury/Mariner Outboard Engines Replaces Mercury 84-813715A1,ZF696
  • ▲Compatible with Mercury/Mariner Outboard Engines
  • ▲Replaces Mercury 84-813715A1,ZF696
  • ▲Easier to insall and works perfect!Make Your Engine Great Again!
  • ▲Constructed with silicone throughout the jacket, insulation and core to deliver high-temperature resistance
  • ▲Package includes 1pcs Spark Plug Wire
Bestseller No. 20
Aokus 10mm Black Spark Plug Wires Compatible with Harley-Davidson Softail 1984-1999 FXST/FLST
  • ▲Compatible with Harley Softail 84-99 FXST/FLST
  • ▲WIRE LENGTH: 17" / 7"
  • ▲10mm high performance ignition wires available for street or race applications
  • ▲Perfect Fitment, directly replacement. Made of high quality material, reliable quality and durable.
  • ▲Package includes: 2 * blue Spark Plug Wires (one 17" and one 7" long wires pre-crimped)

Last update on 2022-12-08 / Affiliate links / Images from Amazon Product Advertising API

How to find the best harley spark plug wires?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best harley spark plug wires for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good harley spark plug wires recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the harley spark plug wires need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for harley spark plug wires to find what you’re looking for:

Brand

In some cases, the brand of harley spark plug wires is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given harley spark plug wires are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about harley spark plug wires are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare harley spark plug wires quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best harley spark plug wires can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.