7 Spark Plug Manufacturers in 2024
This section provides an overview for spark plugs as well as their applications and principles. Also, please take a look at the list of 7 spark plug manufacturers and their company rankings. Here are the top-ranked spark plug companies as of November, 2024: 1.HKS CO.,LTD, 2.Autolite, 3.R&R Products, Inc.
Table of Contents
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What Is a Spark Plug?
Spark plugs are an essential ignition component in gasoline engines. They ignite the fuel-air mixture within an engine's cylinders using electrical sparks. While spark plugs are used in gasoline engines, diesel engines often utilize glow plugs, which ignite fuel through heat rather than an electrical spark.
Uses of Spark Plugs
Spark plugs have various applications, primarily in vehicles and other machinery that require ignition of fuel for power. They are used in:
- Gasoline engine automobiles.
- Pilot ignition of boilers and hot air drying furnaces.
- Starting gas turbines for power generation.
- Starting jet engines for aircraft.
They are crucial in internal combustion engines, as they provide the necessary spark to initiate combustion.
Principle of Spark Plugs
Spark plugs work in conjunction with a power supply and an ignition coil. They consist of a terminal, insulator, and electrode.
1. Terminal
The terminal receives high voltage from the ignition coil and is usually made of conductive metal.
2. Insulator
The insulator prevents ground faults and electric shocks, essential for handling the high voltage generated by the ignition coil.
3. Electrode
The electrode consists of two conductors separated by a narrow gap. High voltage applied across this gap breaks the air insulation, creating a spark. Durable metals are used for the electrodes due to wear from sparking.
Types of Spark Plugs
Spark plugs vary based on the electrode material:
1. Resistor Plugs
Resistor plus use a nickel alloy electrode and includes a resistive element to reduce ignition noise.
2. Platinum Plugs
Made with a platinum alloy electrode, these plugs are more durable and have higher ignition performance, but are more expensive due to the use of rare metals.
3. Iridium Plugs
Feature an iridium electrode, offering superior durability and performance over platinum plugs but at a higher cost.
Other Information on Spark Plugs
1. Spark Plugs and Gasoline
Spark plugs are crucial in gasoline engines for efficient combustion. Deterioration of spark plugs can lead to starting difficulties, poor acceleration, and reduced fuel efficiency. Regular inspections are essential to maintain optimal performance.
2. Spark Plug Life Span
Spark plugs typically have a lifespan of around 60,000 miles for automotive use. The lifespan can vary based on the plug type and the vehicle's usage.
List of 7 Spark Plug Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- Japan
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R&R Products, Inc
Spark Plug Parts
Manufacturer Overview
R&R Products, Inc., founded in 1971, is a manufacturer of turf equipment replacement parts headquarters in Tucson, Arizona. The company’s product categories include equipment parts, golf course accessories, irrigation equipment, safety & security tools, and maintenance tools. They offer various equipment parts including aerating tines, bearings, sod harvester blades, hydraulics, and rotary mower blades as well as engines and parts for Honda, Kohler, Briggs & Stratton, Kawasaki, and Kubota. They also offer electricals such as wires, landscape & work lighting, connectors, connectors, and cables & cords. These products are used in commercial golf and turf industries including agriculture, electrical, recreation, and utility.
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HKS CO.,LTD
PLUG
Manufacturer Overview
HKS CO. LTD. is a Japanese manufacturer and distributor of aftermarket automotive parts as well as components established in 1973 and based in Fujinomiya, Shizuoka. The company offers a wide selection of aftermarket tuning products including exhaust manifolds and systems, electronic components such as boost controllers and turbo timers, vehicle-specific supercharger kits, and intercooler systems. It also offers carbon engine covers, fuel injectors, tool sets, blow-off valves, and body kits. The company's products are primarily used by tuning shops and car enthusiasts, with additional applications in major motorsports events such as Formula Drift Japan and Super GT.
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NGK SPARK PLUG CO.,LTD.
SPARK PLUGS
Manufacturer Overview
NGK Spark Plugs Co. Ltd, established in 1936 at Nagoya, Japan is a manufacturer of spark plugs for internal combustion and other varieties of engines used in automobiles. The company has a global clientele and manufactures new age spark plugs for automobiles that come with better ignition and reliability. The products included but not limited to are spark igniter plugs, glow plugs, glow controller and resistor cables. These spark plugs are temperature-resistant, safe, environmentally sustainable and reduce fuel consumption with their better ignition properties. They also manufacture sensors and ceramics for multiple applications such as automobiles, semiconductors and medical equipment.
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DENSO CORPORATION
SPARK PLUG
Manufacturer Overview
DENSO CORPORATION, a Japanese company established in 1949 with its headquarters located in Kariya, Aichi, Japan, operates as both a manufacturer and supplier of automotive solutions. The company holds a position as a Tier 1 automotive supplier, providing thermal, powertrain, mobility, electrification, and electronic systems to a wide range of global carmakers and manufacturers. Its extensive product portfolio includes air conditioning systems, radiators, alternators, motors, starters, and various other automotive components. It has research, production, and sales offices throughout the world, with a total of 190 consolidated subsidiaries.
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Oregon Tool, Inc.
Spark Plugs
Manufacturer Overview
Oregon Tool, Inc. is a manufacturer and supplier of saw chains, bars, sprockets, and outdoor power equipment accessories that was established in 1947 and is headquartered in Portland, Oregon, USA. The company produces a wide range of saw chains, including universal chains, low-profile chains, and strength chains. Its products, such as Chainsaw Chain, Bar, and Sprocket, are used by a number of industries, as diverse as forestry, construction, and landscaping industries. The company also provides a range of services, including custom manufacturing, repair, and sharpening.
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Autolite
Spark Plugs
Manufacturer Overview
Autolite, established in 1911 as a division of FRAM Group, is headquartered in Cleveland, Ohio, USA, and is a manufacturer and distributor of ignition wire sets and spark plugs. The company primarily produces ignition wire sets, which provide stable electrical connectivity for automotive ignition systems, and spark plugs that ignite the air-fuel mixture within the combustion chamber. It also offers consultancy and catalog services to support customers with specific needs. Autolite has been the official spark plug of NASCAR since April 2000, and mainly serves clients in the automotive and motorsport industries.
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Robert Bosch LLC
Double Iridium Spark Plugs
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Spark Plug Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | HKS CO.,LTD |
27.4%
|
| 2 | Autolite |
16.6%
|
| 3 | R&R Products, Inc |
16.2%
|
| 4 | NGK SPARK PLUG CO.,LTD. |
12.2%
|
| 5 | Robert Bosch LLC |
11.6%
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| 6 | Oregon Tool, Inc. |
8.6%
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| 7 | DENSO CORPORATION |
7.3%
|
Derivation Method
The ranking is calculated based on the click share within the spark plug page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- DENSO CORPORATION: 164,572
- HKS CO.,LTD: 413
Newly Established Company
- HKS CO.,LTD: 1973 (51 years ago)
- NGK SPARK PLUG CO.,LTD.: 1936 (88 years ago)
Company with a History
- NGK SPARK PLUG CO.,LTD.: 1936 (88 years ago)
- HKS CO.,LTD: 1973 (51 years ago)
Spark Plug Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Spark Plug Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
Japan
|
3 | 75.0% |
United States of America
|
1 | 25.0% |
