“A trip is good if thinking about it makes you happy.” This happens only when your buddy is prepared to provide you with a pleasurable journey. Yes, Harley Davidson is a dependable road and ride buddy, as is its popularity.
The world’s leading motorbike, on the other hand, needs well-chosen accessories to match its notoriety. For a fact, not all ignition wires are compatible with all Harley models.
That is why we have compiled a list of the top 5 best spark plug wires for Harley Davidson. Hopefully, you’ll find the right fit for your Harley-Davidson here.
Our Top 5 Picks’ Wires for Harley Davidson
ACCEL 175100 Custom Wire Set for Cross Bones Fat Boys
Best For Cruisers Types
Aokus 10.4mm Spark Plug Wire Set For H-D Big Twin
Best For Street Types
Accel ACC Spark Plug Wire Set for Sportster
Best For Triking Types
AIP Dragon Fire Performance 8.5mm Spark Plug Wire Set
Best For Touring Types
CARBEX 10mm Spark Plug Wire for Harley Davidson Big Twin
1. Editor’s Choice: ACCEL 175100 Custom Wire Set for Cross Bones Fat Boys
- Thick silicone jacket that prevents electrical leakage
- Limited Warranty of 90 Days
Not So Good Side
- A bit more costly than the standard wires
The ACCEL spark plug wires, the best product on the list, provide optimum performance.
The first thing you should know about this ignition wire is that it fits most models, including Cross Bones, Fat Boys Heritage, Softails & Softail Classics Heritage, Springers Night Trains, and so on. However, not all ignition wires are compatible with all Harley models.
Second, it has rust-free terminals and insulators that are extremely protective. The ignition wires rely heavily on the terminals. The wire is linked to the distributor and the spark plug through these terminals.
Moreover, the wires are 8.8 mm thick and capable to provide optimum resistance. High resistance wires have the advantage of reducing frequency interference.
Also, the ACCEL ignition wire has a thick insulator to protect the inner conducting metal. This unique shielding also guarantees that the spark plugs work at their best.
So, if you want the best wires for Harley Davidson, use the ACCEL brand.
2. Best For Cruisers Types: Aokus 10.4mm Spark Plug Wire Set For H-D Big Twin
- Dependable and long-lasting quality
- Pretty affordable price
Not So Good Side
- Can’t fit all models of H-D
Another high-quality wire at an affordable price! This Aokus 10.4mm Spark Plug Wire Set For H-D Big Twin is a high-quality spark plug wire set at a low cost.
This Aokus spark plug wire fits cylinder Harley-Davidson or Big-Twins with the coil located on the seat post in an almost factory-like placement.
Moreover, it comes with 10.4mm high-performance ignition wires that may be used on the street or in races. Wires are designed for a flawless fit and a straight replacement for street or racing applications.
These Aokus spark plug wires, on the other hand, are constructed of high-quality material. It’ll last a long time! In addition, two blue spark plug wires, one 8′′, and one 20′′, are included in the bundle. As a result, this could be a viable choice.
3. Best For Street Types: Accel ACC Spark Plug Wire Set for Sportster
- Fiberglass braid coverings for heat protection
- Thick silicone jackets are used for leakage protection
Not So Good Side
- Not compatible with Harley stock coil
This Accel ACC Spark Plug Wire Set for Sportster is another amazing ignition wire set for H-D on the list.
these Accel ACC Spark Plug Wire Set are ideal for Sportster 883 Huggers, Sportster 1100s, Sportster 883 Huggers, Sportster 1200s, Sportster 883 Deluxes, Sportster 883s, and Sportster 1200 Customs.
The terminals on the wires are designed to provide corrosion-free performance and facilitate installation. They bite down hard on the spark plugs to keep them from opening in the case of a tremor.
The wires, on the other hand, are covered in high-quality insulators that can endure temperatures of 500 degrees. As a result, the ACCEL wire set eliminates the risk of heat damage to your spark plug wires.
The Ferro-Spiral Core is best protected by these ignition wires, which have an 8 mm diameter and protect it from all sorts of heat, oil, and moisture. With all of the features, this brand stands out as a decent option.
4. Best For Triking Types: AIP Dragon Fire Performance 8.5mm Spark Plug Wire Set
- High-performance conductor for optimal voltage transmission
- Silicone-made terminal boots for overheating protection
Not So Good Side
- Overprice than usual standard wires
This AIP Dragon Fire Performance 8.5mm Spark Plug Wire Set is for your 2000-2017 Harley-Davidson Softail Fatboy.
This wire set is compatible with Harley-Davidson Softail, Heritage Springer, Fatboy, and Fatboy Lo models from 2000 to 2017.
This wire set is also a fire performance wire set with high tensile strength and temperature adjustment up to 500°F. It matches all voltage-transfer criteria. This one is made to last a little longer.
For prolonged service life, the wire set features a sturdy, thick bolt wall construction. You’ll also have a perfect fit for the street series. This Dragon wire combination is recommended for excellent dielectric performance and efficient spark delivery.
5. Best For Touring Types: CARBEX 10mm Spark Plug Wire for Harley Davidson Big Twin
- Boots that are 90 degrees and straight fit perfectly
- High-Quality terminals
Not So Good Side
- Not compatible with most engines
CARBEX is a well-known manufacturer of Harley-Davidson ignition wires. And, for Harley Davidson Big Twin 99-19 FXD Dyna Softail, this CARBEX 10mm Spark Plug Wire is one of the top professional aftermarket spark plug wires.
This CARBEX 10mm Harley Davidson Big Twin Spark Plug Wire is designed for the Harley Davidson Big Twin, FXD Dyna Softail 99-19.
This wire combination, however, has two ignition wires. One is little, measuring 8″, while the other is large, measuring 20″.
This wire is also a typical variety, with 90-degree straight boots that fit everyone. It also has High-Quality terminals. These terminals connect the wire to the distributor and the spark plug.
Spark Plug Wire Replacement for Harley – Davidson
In a Harley, replacing the spark plug wire is not difficult. Simply follow the instructions, and you’ll get to replace it easily. But first, check the old spark plug wires if they get cracks, wear, or any other indicators that they are malfunctioning.
If you find any, then replace the old ones. However, to replace the wires,
First, with a ratchet, remove the distributor cap from your Harley engine.
Second, remove the old spark plug wires and replace them with new ones. Tighten their boots after they’re in to ensure that the plugs are securely connected to the wires.
Then, using a high-velocity air compressor, suck away any dust from your distributor housing.
Fourth, before replacing the cap on your engine, wipe it out. As a consequence, the cap and the distributor will fit together smoothly.
Why Should You Use These Harley-Davidson Spark Plug Wires
Not all Harley models are compatible with all ignition wires. That’s why we’ve put together a list of the top 5 best Harley-Davidson spark plug wires, so you can discover the right fit for your bike.
The spark plug wires reviewed in this article are from recognized companies such as Accel, Aokus, Carbex, and Dragon Fire. They provide high-quality ignition wires that supply the highest possible voltage to the spark plugs.
The aforementioned wires are only compatible with Harley-Davidson motorcycles. Just because certain cables are suitable for one Harley model while others are not, we double-check that the wire you want is compatible with your Harley model. For that reason, you can look at the fitting model.
Features of the Harley Davidson Spark Plug Wires
The specific features of the ignition wires are listed below. To choose the best spark plug wires, look for these features.
The resistance of spark plug wires varies from 7,5oo to 12,000 ohm per foot. So, the bottom line is to choose a spark plug wire with high resistance.
You should get spark plug wires with high resistance because high-resistance wires have the advantage of reducing frequency interference. The ignition wires have a high resistance in general, although some have low resistance.
If you use low-resistive wires, the electromagnetic waves created surrounding the ignition wires will damage your vehicle’s sensors, electronic systems, or radio.
High Conductivity of Core Metal
As the spark plug wires transport roughly 10,000 volts of energy from the distributor to the spark plugs, it’s best to choose a highly conductive material. Copper has a very high conductivity. It provides the spark plug with the highest voltage at the proper time. That’s why it should be used as the conducting material in the ignition wires.
The ignition wires rely heavily on the terminals. The wire is linked to the distributor and the spark plug through these terminals. So, the terminals must be protected, especially from corrosion to provide long-term function.
Additionally, to prevent unplugging during vibration, they should bite down hard on the spark plug. If the connections are not properly tightened, the excessive voltage may not be transferred to the spark plugs. If they rust, they lose their effectiveness.
Right Fit for Your Model
Some spark plug wires are fit for Dyna Harley, and many work fine with Softail Harley. But not all wires fit all Harley models. So, check if the type of spark plug wire you want to buy matches your vehicle or not.
No, A new spark plug wire will not boost the horsepower of a vehicle. It is connected to the engine wiring. Installing new ignition wires, on the other hand, will improve the engine’s performance. It also appears that the horsepower has risen.
Some symptoms of a faulty spark plug wire include: The engine making a rattling noise, being difficult to start when cold owing to unburned gasoline in the exhaust system, and the cranking speed is slow.
A spark plug wire has an average lifespan of 60,000 to 70000 miles. Of course, it also relies on the motorcycle’s surroundings, operating circumstances, and maintenance. But we recommend changing it whenever you change your spark plugs. It will improve the engine performance.
All of the following products are highly compatible with Harley-Davidson since they are high-performing, long-lasting, and will increase overall engine performance. Hopefully, you’ll find the perfect fit wire for your Harley-Davidson here.
If you’re still unsure and want our suggestion, then we recommend the ACCEL 175100 Custom Wire Set among all the 5 best Harley Davidson spark plug wires. It has a spiral-core design and is a cost-effective solution. At the same time, it is quite simple to set up and will last a long time.
I am Todd Hicks, a classically trained automotive expert with a vast knowledge of autos. I own an automotive workshop in the United States. In this field, I have 20 years of experience. I’m particularly interested in sharing vehicle tips and tricks with car-dedicated people. Writing is equally fascinating to me as a technique of sharing my thoughts.