Car spark plugs are among the components that may vary based on the vehicle type, and it can be said that Hyundai spark plug types are NOT universal.
Spark plugs are categorized into various types based on material, number of electrodes, and thermal code. The most important types of spark plugs include hot, semi-hot, cold, needle-type, etc.
If you need to replace your vehicle’s spark plugs, consult a professional mechanic at a specialized repair shop and select and purchase the required spark plugs from ArsinTrading. At ArsinTrading, we have tried to prepare the best quality spark plugs for Kia and Hyundai vehicles.
How many types of Hyundai spark plugs are in the market?
Since spark plugs are not universal, there are various Hyundai spark plug types in the market depending on the vehicle’s usage and lifespan; we have different types of spark plugs.

Hot Spark Plug
Before defining such spark plugs, we should mention that the classification of spark plugs in terms of thermal code relates to the spark plug’s heat level and resistance to such temperatures; in other words, the spark plug should be able to transfer the ideal heat for ignition.
Accordingly, hot spark plugs transfer less heat and become hotter themselves and such spark plugs are usually better for engines operating at lower temperatures.
Semi-Hot Spark Plug
These spark plugs fall into the middle category between hot and cold spark plugs and has more extended bases than cold spark plugs but shorter bases than hot spark plugs.
Semi-hot spark plugs are more suitable for engines with medium operating temperatures.
Cold Spark Plug
Such spark plugs have short bases. Cold spark plugs transfer heat faster, and their heat transfer rate is high. Cold spark plugs are used for engines with high temperatures.
Needle-Type Spark Plug
Needle-type spark plugs have advantages over regular spark plugs. The difference between needle-type and regular spark plugs relates to the design of their positive electrode in such a way that regular spark plugs have a positive electrode with a round head. In contrast, in needle-type spark plugs, the electrode design will be needle-shaped.
Due to their design, needle-type spark plugs perform the sparking action better and more robustly, and therefore, by improving the combustion quality in the cylinder, they will reduce fuel consumption, improve acceleration, etc. Needle-type spark plugs themselves are divided into iridium and platinum categories, whose classification is based on the alloy material used in the electrodes.
Iridium Spark Plug
Iridium spark plugs can be considered among the best spark plugs. The positive electrode of such spark plugs is made of the element iridium, and the negative electrode is also made of platinum.
Using such materials, you can witness the best type of sparking, resulting in improved engine performance and reduced wear on other parts. Also, iridium spark plugs have a longer lifespan.
Platinum Spark Plug
The electrode material of such spark plugs is made of platinum, and their thermal resistance is high. Due to the presence of platinum, good sparking and combustion can be observed, ultimately leading to improved vehicle performance.
What are the components of a car spark plug?
Although Hyundai spark plug types is small in size, it has one of the critical roles in the engine’s proper functioning.
This part consists of various components; the most essential parts of a car spark plug are the base, insulator, electrodes (positive and negative), and gasket.

Although usually overlooked, spark plug replacement is essential as this component, like any other vehicle part, has its specific helpful life.
Upon noticing signs such as improper engine performance, increased fuel consumption, and the vehicle’s check light turning on, it’s necessary to inspect the spark plugs and replace them if needed. However, to make the right choice for your vehicle, you must know the technical specifications of the spark plug. When selecting a spark plug, consider electrode material, thermal code, number of electrodes, etc.
Reading the vehicle’s manual before choosing a replacement spark plug is better.
If the vehicle manufacturer has any specific recommendations, you can consider them when purchasing the appropriate spark plug.
Another critical factor is the electrode material. You should not purchase another type if the vehicle standardly uses platinum or iridium spark plugs. Otherwise, you will incur damages and costs for repairing parts.
Regarding the number of electrodes and the size of the spark plug base, it is better to check the vehicle’s original spark plug. Another important factor when buying a car spark plug is its thermal code, usually between 450 to 800 degrees Celsius (840 – 1480 Fahrenheit).

Factors such as manual or automatic gearbox, number of cylinders, engine type, etc., also affect the choice of the appropriate spark plug with the vehicle’s specifications.
As mentioned, spark plugs have a specific lifespan, but certain problems can shorten their lifespan. Improper installation of the spark plug or tightening it too much can cause performance issues and reduce lifespan.
Also, not setting the spark plug electrode gap in the cylinders according to the vehicle manufacturer’s recommendations is another reason for spark plug failure. To these issues, we must add oil burning, running rich, using low-quality spark plugs, etc.
Frequently Asked Questions About Spark Plugs
Are Spark Plugs Universal?
One of the most common questions asked is: Are spark plugs universal? No, spark plugs are not universal. While some spark plugs will fit a number of various vehicles, each car engine is designed to run best with a specific type, size, and heat range of spark plug. The wrong spark plug will result in poor engine operation, increased fuel usage, or in a few instances, engine damage.
Are All Spark Plugs Universal for Cars?
Are all spark plugs universal for cars? No, all spark plugs are not universal for cars. Different cars require different spark plug specifications, like thread size, reach, heat range, and electrode material. Always refer to the manual of your vehicle or consult an expert prior to purchasing spark plugs.
Do All Cars Have Spark Plugs?
Do all cars have spark plugs? Most gasoline cars have spark plugs, but not all cars have spark plugs. For example, diesel engines do not use spark plugs; they use glow plugs or another kind of ignition system. Do all cars have spark plugs? No, only gasoline engine cars require spark plugs.
Do Newer Cars Have Spark Plugs?
Do new vehicles come with spark plugs? Yes, new gas-powered cars still use spark plugs, although the material and technology have been improved over the years for better performance and longevity.
Are All Spark Plugs the Same?
No, Hyundai spark plug types are various based on the model and they are not the same and differ in types, sizes, and material. There are hot and cold spark plugs, iridium spark plugs, platinum spark plugs, and more. Each is appropriate for specific engine specifications.
Do All Cars Use the Same Spark Plugs?
No, each car model may use a different type of spark plug all vehicle companies use various types of this spark plug because of the difference of design. Engine size, engine configuration, and performance demands determine the appropriate spark plug for your vehicle.
How Many Spark Plugs Do Cars Have?
How many spark plugs do cars have? Spark plugs in a car are determined by the number of cylinders. A 4-cylinder, for example, will typically have 4 spark plugs, a V6 will have 6, and a V8 will have 8. In certain applications, high-performance engines will have two spark plugs per cylinder.
Types of Spark Plugs
- There are several types of Hyundai spark plugs available, such as:
- Copper Spark Plugs: Cheaper, but shorter lifespan.
- Platinum Spark Plugs: Higher performance and more durable.
- Iridium Spark Plugs: Most durable and most efficient, installed in the majority of newer vehicles.
- Hot and Cold Spark Plugs: Refers to heat range; hot spark plugs retain heat longer, cold spark plugs lose heat faster.
What Type of Spark Plug Does My Car Require?
What type of spark plug does my car need? Always refer to your vehicle’s owner manual or consult a trusted mechanic. The correct type of spark plug ensures improved engine performance and longevity.
Spark Plug Materials
What is spark plug made of? Spark plugs are typically made of copper, platinum, or iridium. The material affects the performance and longevity of the spark plug.
Other Common Questions
Do all vehicles have spark plugs? Spark plugs are present only in petrol vehicles.
Plugs for vehicles: Generally, this is a term that refers to spark plugs, which are utilized to burn the fuel-air mixture in the engine.
Types of plugs for vehicles: There are several Hyundai spark plug types for vehicles, including standard, platinum, and iridium.
50cc spark plug: Small engines, like 50cc scooters, require specialized spark plugs that match their size and performance needs.