11 Best Spark Plug Wires (2022 Reviews & Buying Guide)

Spark plug wires are equally as essential to the engine’s operation as the spark plugs themselves, and this is debatable.

When the ignition switch is turned on, a little amount of electricity is sent to the spark plugs, which subsequently utilize it to start the combustion process. A distributor-less ignition system, in which the spark plug wires are directly connected to the coil packs, is available in certain current vehicles. Other autos employ a coil on an ignition plug type that doesn’t even need a spark plug wire.

However, the usage of spark plug wires is still common in most autos.

As with all other engine components, they will ultimately have to be replaced due to their constant wear and tear over time and usage. If you don’t know much about how to select the best spark plug wire, you’ll have a hard time making the right decision. No worries whatsoever are required.

Benefits Of Spark Plug Wires

Increase Engine Performance

Benefits Of Spark Plug Wires

A spark plug wire has to be made of a conductive material that can handle high voltage. The best material is copper because it has low resistance and conducts electricity very well. It also lasts longer than other materials used in spark plugs like aluminum or steel because it can withstand higher temperatures without breaking down.

Improve Gas Mileage

A well-maintained car will increase gas mileage by up to 2% according to studies done by Consumer Reports. When the spark plugs were removed from several vehicles, there was an average savings of 0.4 mpg (mile-per-gallon). This may not seem like much, but if you drive 15,000 miles per year then it adds up to 750 gallons per year of extra gas!

Save Money

If properly maintained, spark plug wires may survive for many years. Replacing them only when necessary helps you save money on replacement and maintenance costs.

Reduce Radio Frequency Interference

Radiofrequency interference (RFI) is a common problem with older cars that have been exposed to electromagnetic radiation from cellphones, radar detectors, and other electronic devices. This type of interference can cause misfires and damage electronic components like distributor caps and ignition coils. Spark plug wires help minimize RFI by conducting electricity across the length of each wire rather than through a single point like in older cars without them.

Types Of Spark Plug Wire

Distributed Resistance Wires

Distributed resistance wires are used on older vehicles that have manual transmission systems. They use a resistance wire that is wound around a core to create an inductor effect, which helps reduce radio frequency interference (RFI). These kinds of wires can be found on older vehicles with points ignition or distributorless ignition systems.

Magnetic Resistance Wires/Inductance Wires

Magnetic resistance wires are made of copper alloy conductors bonded together with an insulating material called polyurethane. They are then coated with an insulating compound called silicone rubber, which makes them flexible so they can bend easily without breaking or cracking.

The magnetic resistance wires have a high-resistance core, which produces a strong magnetic field around it when current is passed through it. This helps control the ignition timing by providing feedback information back to the engine’s computer so it knows when to fire the spark plugs to ignite the fuel mixture inside each cylinder during the combustion cycle.

Fixed Resistor Wires

These types of wires have fixed resistors embedded in them that help reduces radio interference and prevent interference with other systems in your vehicle. They also provide better protection against moisture than other types of wires do, making them ideal for use in wet conditions or rainy weather.

What Makes For A Good Spark Plug Wire?

What Makes For A Good Spark Plug Wire

Using spark plug wires, you connect your car’s spark plugs to the distributor. They carry current to each spark plug, which ignites fuel in your engine, causing it to run. Wires are available in a number of lengths and gauges and are constructed from a variety of materials. The quality of the spark plug wire you choose depends on several factors, including its cost, durability, and resistance to heat.

There are several things that make for a good spark plug wire:


Spark plug wires come in many different price ranges. You can find them for under $20 or as much as $100. The higher-priced ones generally have better insulation than the lower-priced ones, but this does not necessarily mean they will last longer or perform better than their lower-priced counterparts.


Durability refers to how long a spark plug wire will last before it needs to be replaced again. Durability is usually measured by gauge thickness and material composition (copper). Thicker gauge wires will last longer because they have more insulation between the metal strands inside of them. Copper is also used in high-performance applications because it is highly conductive and resistant to heat damage from engine exhaust gases.

Resistance To Heat Damage

The most important feature of a good spark plug wire is resistance to heat damage. No lasting damage should occur if it can tolerate temperatures up to 1800 degrees Fahrenheit. In hot climates or if you often drive your automobile on hot days, this is very crucial.

Top 11 Best Spark Plug Wires Reviews

ACDelco 758EE Spark Plug Wires

ACDelco 758EE Spark Plug Wires

  • Many applications and autos may benefit from spark plug wire sets manufactured by ACDelco. Professional Spark Plug Wire Set, one of the company’s most popular items, is made of high-temperature silicone insulators and reinforced fiberglass. There are now 96% of domestic automobiles on the road today that are covered by ACDelco’s Professional Spark Plug Wire Set, according to the company.
  • All of the components of the Professional Spark Plug Wire Sets have been carefully crafted to provide optimal spark delivery and protection. Good corrosion resistance is provided by the configuration of the terminals on the spark plug distributor, which enhances spark plug retention and makes it easier to install. High-dielectric materials are also used in the insulator of these spark plug wires. It’s also important to note that a coil retainer helps avoid fretting and micro-arcing.
  • Spark plug wire sets from the original equipment manufacturer are also available from the business.

MSD 32819 Spark Plug Wires

MSD 32819 Spark Plug Wires

  • MSD is another well-known manufacturer of ignition components, including coils, distributors, and even ignition boxes.
  • With a variety of spark plug wires, including 8.8mm and Extreme 9000 ceramic and Spiral and Ferro-Spider and ThunderSport, and the 8.5mm. This particular pair of wires have the potential to be one of the most expensive options on the market. Although it’s expensive, there are several benefits to purchasing this product. The 8.5 mm copper alloy is without a doubt one of them.
  • Ferromagnetic impregnation and 40 feet of copper wire wrapped around the core make it an excellent RFI suppressor. Due to its exceptional strength and resistance to wear and heat, DuPont Kevlar was chosen to make the outer sleeves. There are two crimp tabs on each terminal, one for the conductor and one for the jacket.

ACCEL 9070C Spark Plug Wires

ACCEL 9070C Spark Plug Wires

  • It’s hardly a stretch to say that the ACCEL 9070C Extreme Ceramic Boot Plug Wire is the best spark plug wire on the market for GM LS Gen IV engines, even if they’re a specialized product.
  • Even the most ferocious street machines won’t be able to melt these ceramic boots, which are certified for temperatures of over 2,000 degrees Fahrenheit. The greatest spark plug wires for drag vehicles are these.
  • It’s worth mentioning, though, that they are only suitable for a certain kind of vehicle. Technology that can withstand such high temperatures is very astounding.

NGK (8034) Spark Plug Wires

NGK (8034) Spark Plug Wires

  • Spark plug wires and plugs made by NGK are well-known for their durability, dependability, and performance in both high-performance vehicles and everyday automobiles.
  • Consumers have consistently given the HE76 performance wires the highest ratings of any high-end aftermarket wire combination. A customized magnetic core with half the resistance of typical carbon core wires is used in these wires. Wire sets with a non-wearable inner core that outlasts other sets by more than 60,000 miles are the longest-lasting on the market.

Denso 671-4239 Spark Plug Wires

Denso 671-4239 Spark Plug Wires

  • If you’re looking for a high-quality spark plug wire set, go no further than Denso. When you remove the old ones, they’ll be familiar and straightforward to install. The conductor wire that makes up these replacement wires is the main difference. Compared to the conventional wires that come with your automobile, these are far more robust.
  • With a fiberglass braided wire, your spark plugs are promptly and effectively ignited. Copper wire and cabling are protected from punctures and severe temperatures by a robust, thick casing. Besides that, the wires are a little less expensive than the identical matching pair that comes with your car.
  • The Denso spark plug wire has certain drawbacks, including the fact that it may not be long enough to reach the OEM routing clips. Stretching them out to make them more comfortable should be no problem. You may also have a hard time grabbing hold of the gasket on the engine side of things.

JEGS Spark Plug Wires

JEGS Spark Plug Wires

  • JEGS’ Ultra Pow’r Spark Plug Wires, which come in red, yellow, and black, are often found on domestic automobiles. If you’re looking for one of these models, double-check that the product you’re interested in will work with your vehicle before you buy it.
  • After 32 wraps of a fiberglass strand coated in stainless alloy and latex, the JEGS Red Hot Pow’r Wires’ spiral core is made of Kevlar. These wires are considered performance plug wires at an affordable price. RFI suppression equals that of OE carbon conductor wire, but with four times less resistance, thanks to a special wire composition.
  • There are fiberglass reinforcing braided sections between the wire’s spark plug boots and outer jackets for increased pull strength and protection against high temperature, fuels, and lubricants.

Edelbrock 22716 Spark Plug Wires

Edelbrock 22716 Spark Plug Wires

  • Edelbrock’s reputation in the ignition market as a high-quality manufacturer with high-quality goods is shown by this spark plug wire set. As a consequence, they are very cost-effective and time-saving devices.
  • Spark plug wires with a resistance of 40 ohms per foot have a strong RFI suppression rating. An 8.5mm silicone jacket covers the exterior of the core, making it resistant to heat, abrasion, moisture, and chemicals. This also protects the core from the inside. The materials utilized to make these wires are of the finest quality, ensuring that they work to their fullest potential at all times.

Denso 671-8062 Spark Plug Wires

Denso 671-8062 Spark Plug Wires

  • This carbon core ignition wire set is just as good as the AC Delco’s, but it’s even less costly. You may save a lot of money while still receiving high-quality spark plug wires for your everyday driving by purchasing these.
  • Class E is the highest possible wire-insulation grade for the outer silicon layer. In addition to being tested for heat shrinkage and chemical resistance, this shields the electrical core from temperatures ranging from -40 to 428 degrees Fahrenheit (i.e. motor oil exposure).
  • Customers love Denso 671-8062 Original Equipment Replacement Wires, making it one of the finest values in spark plug wires you can get if you’re on a budget.

ACDelco Professional 16-806G Spark Plug Wires

ACDelco Professional 16-806G Spark Plug Wires

  • These premium aftermarket replacement wires are a straight fit and a premium aftermarket option. The 7mm diameter is compatible with the wire looms that come with the vehicle. In addition to the little packet of dielectric grease included in the package, there are also some pre-packaged within the fittings on the ends of the cables. As a whole, they’re dependable, and the red cable is a lovely visual accent.
  • The cables, on the other hand, have received some concerns about their length. In certain cases, customers have gotten fewer wires than they ordered. Additionally, you should only install one at a time to avoid becoming lost in the process.

TAYLOR CABLE 98003 Spark Plug Wires

TAYLOR CABLE 98003 Spark Plug Wires

  • Tuners and those interested in performance modifications will find that these spark plug wires are among the finest in the sub-$100 price range. (In reality, they’re a lot less expensive than that.
  • As opposed to “tuned” automobiles and ordinary drivers, they are not recommended for “non-tuned” vehicles or drivers due to the fact that most conventional cars only carry 40-60% of the distributor’s voltage.
  • The conductive boot end of the Taylor Cable Spark Plug Wire Set is heat-bonded to the wire core, providing practically fail-proof terminal connections, and the heat-treated fiberglass weave under the outer jacket provides some of the stiffest and most durable performance ignition wires on the market today.

Walker Products 900-1607 Spark Plug Wires

Walker Products 900-1607 Spark Plug Wires

  • Designed to meet or surpass OE criteria in fit, shape, and performance, Thundercore extreme wire sets High-temperature coils on the plug boots of the SAEJ2031 Class E rated wire-wound, insulated cable is resistant. A corrosion-resistant snap lock terminal is included on the spark plug wires, making installation a breeze.
  • The only difference between these wires and OEM wires is that they do not have a serial number. While sturdy, they are also soft and pliable. When you put them on, you’ll hear a gratifying snap as they firmly grip your feet. The wires may increase engine starting, acceleration, and fuel efficiency when used with a high-quality spark plug. They suit minivans like the Dodge Caravan and the Chrysler Town & Country.
  • This product has minimal drawbacks. There have been some concerns that the wires begin to break after a short amount of time or that one may be too short for the intended function.

Buying Guide For the Best Spark Plug Wire


There are two general types of spark plug wire materials that you’ll find on the market today: copper and aluminum. Copper is generally considered to be superior to aluminum because it can withstand higher temperatures without becoming brittle and cracking over time. However, copper is also more expensive than aluminum and contributes slightly more weight to your vehicle’s engine bay.

Voltage Rating

The next thing to consider is the voltage rating of your new spark plug wires. This refers to the amount of electricity they can withstand without overheating or bursting into flame. It’s important that you choose a wire that has a higher voltage rating than what your vehicle originally came with so that it doesn’t overheat and cause additional problems down the road.


Another thing you’ll want to consider is the brand name when making your purchase. A well-known brand like ACDelco or Motorcraft will typically provide higher quality products than an unknown brand name that isn’t as trusted by consumers. However, if you’re trying to save money on parts for your vehicle, some lesser-known brands may provide just as good of quality for less money spent overall.


There is no way around it: Spark plug wire replacement can be expensive. The cost varies depending on the type of wire you choose and how many miles you have on your car’s engine. Because new spark plug wires live longer than worn ones, this is fantastic news for you! This means they’re less likely to break down or fail prematurely while they’re still under warranty.


Buying Guide For Spark Plug Wires

The length of the wire is one of the important considerations when buying spark plug wires. The length of a spark plug wire should be sufficient enough to reach the top side of your engine block without having to stretch it too much. This will allow you to connect it easily without any hassle and make sure that it does not get damaged while connecting or disconnecting.


This is an important factor when shopping for any car part. The compatibility of your new components should always be checked before installation on your vehicle. Spark plug wire sets are compatible with many different types of vehicles, but some are more universal than others.

Number Of Spark Plugs

Some spark plug wire sets come with only one or two wires, but others come with multiple spark plugs included in the package. If you want more than one or two wires, make sure that they’re included in the price before purchasing them online or at a local auto supply store.

How Do You Test Spark Plug Wires to Tell if They’re Good?

Visual Inspection

First, inspect the wires visually. Look for any obvious physical damage like cuts, burns, or corrosion on the wire. If you find any of those problems, replace them immediately because they could cause an electrical short.


If you have a leaky plug wire, you may notice a drop in fuel economy as well as an increase in oil consumption. If that’s the case, it’s time to get new ones.


Next, test for sparks by spraying some water on the terminals and watching for sparks when you crank the engine over. If you don’t see any sparks at all when cranking over the engine with a spray of water on the terminals, then it’s time to replace your old spark plug wires with new ones!


Do Spark Plug Wires Increase Horsepower?

They don’t, in fact. Your prior spark plug wires were so worn out that even a tiny improvement seems like a huge improvement, so you may notice a considerable increase in performance.

New, high-quality spark plug wires allow your car to function to its full potential. This is what’s actually going on.

Do Spark Plug Wires Have A Universal Size?

Yes and no, in a nutshell. Pre-cut and terminated wire sets are available for almost every engine family ever produced. However, the original application normally determines these settings. Wire routing for small blocks in Camaros and trucks is likely to vary from one to another, especially when it comes to tiny blocks in Chevy 350s. For these unique applications, pre-made sets are a huge time and money saver. All the popular muscle vehicles, trucks, and even some recent muscle cars are available as pre-made wire kits.

Do You Need To Replace Your Spark Plug Wire Sets?

Spark plug wires should be replaced as soon as you observe any of the following symptoms. Hard starting, rough idle, sluggish acceleration, and use of extra gasoline are only a few of the engine’s symptoms.

Other engine and general automobile component problems might manifest themselves in the same way as the warning signals for bad spark plug wires described above. Your wires should be tested if you want to be absolutely sure that the problem is with your automobile.

Do You Always Need To Use High-Performance Wires?

In order to boost the performance of your automobile, you may want to get a set of high-performance spark plug wires. High-performance cables may be true for certain purposes, but they may compromise characteristics that might impair the functioning of electronics in your engine bay by not confining radio waves. For some everyday drivers, they aren’t the best options, even if they’re perfect for race vehicles.

In Closing About Best Spark Plug Wire

To get the most out of your engine, you need to choose the top spark plug wires to make sure that the spark plugs get adequate power. These manufacturers are a good place to start your search if you’re looking for a good set for your car. They’re some of the best out there.

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