Robert Bosch LLC
R&R Products, Inc
Oregon Tool, Inc.
NGK SPARK PLUG CO.,LTD.
HKS CO.,LTD
DENSO CORPORATION
Autolite

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 December, 2024: 1.HKS CO.,LTD, 2.Autolite, 3.R&R Products, Inc.

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List of 7 Spark Plug Manufacturers

*Including some distributors, etc.

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  • Year Founded: oldest first
  • Year Founded: earliest first

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  • United States of America
  • Japan
    • R&R Products, Inc
      • United States of America Address: 3334 E Milber St., Tucson, Arizona, United States of America

      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.

    • HKS CO.,LTD
      • HKS CO.,LTD
        PLUG

      • Japan Address: 2266 Kamiide, Fujinomiya, Shizuoka, Japan

      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.

    • NGK SPARK PLUG CO.,LTD.
      • Japan Address: URBANNET NAGOYA NEXTA Bldg. 1-1-1 Higashisakura, Higashi-ku, Nagoya, Aichi, Japan

      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.

    • DENSO CORPORATION
      • Japan Address: 1-1, Showa-cho, Kariya, Aichi, Japan

      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.

    • Oregon Tool, Inc.

      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.

    • Autolite

      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.

Spark Plug Manufacturer Ranking

*Including some distributors, etc.

Ranking as of December 2024

Derivation Method
Rank Company Click Share
1 HKS CO.,LTD
27.4%
2 Autolite
16.5%
3 R&R Products, Inc
16.1%
4 NGK SPARK PLUG CO.,LTD.
12.0%
5 Robert Bosch LLC
11.6%
6 Oregon Tool, Inc.
8.9%
7 DENSO CORPORATION
7.5%

Derivation Method

The ranking is calculated based on the click share within the spark plug page as of December 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

  1. DENSO CORPORATION: 164,572
  2. HKS CO.,LTD: 413

Newly Established Company

  1. HKS CO.,LTD: 1973 (51 years ago)
  2. NGK SPARK PLUG CO.,LTD.: 1936 (88 years ago)

Company with a History

  1. NGK SPARK PLUG CO.,LTD.: 1936 (88 years ago)
  2. 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 Japan 3 75.0%
United States of America United States of America 1 25.0%

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