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For inquiries related to NGK SPARK PLUG CO., LTD. please provide the following information:

  • ※ Responding to NGK SPARK PLUG CO., LTD. customer inquires is based on customer identification. NGK SPARK PLUG CO., LTD. has no tolerance for diversion or secondary use of our responds either in whole or in part for other purposes.
  • ※ Depending on the contents of your inquiries, it may take a longer time for us to respond. If you are in a hurry, please contact us via telephone or fax with your inquiries.

Privacy Policy

NGK SPARK PLUG CO., LTD. uses personal data within the scope of the intended use clearly informed to customers.
Please read our Privacy Policy carefully. If you have any questions regarding the contents of this agreement, please don't hesitate to contact us.

Privacy Policy

Plugs and related products, Automotive sensors

Please contact Automotive Components Sales & Marketing Div. Aftermarket Sales & Marketing Dept. for inquiries about plugs and automotive related products and sensors.

Automotive Components Sales & Marketing Div.
Aftermarket Sales & Marketing Dept.

Headquarters & Nagoya Plant
14-18, Takatsuji-cho, Mizuho-ku, Nagoya 467-8525, Japan
TEL: +81-52-872-5933, FAX: +81-52-872-9997

Products that are mainly manufactured by the Spark Plug Division, such as spark plugs, cap cables, and plug cables, are explained in detail at the PLUG STUDIO.
Contact the Plug Studio for inquiries or comments about products and product-related motor sports or events.

Products Manufactured by the Spark Plug Division

  • Spark plugs
  • Glow plugs
  • Plug codes and power cables for four-wheel vehicles
  • Plug caps, plug codes, racing cables, and power cables for two-wheel vehicle engines and utility engines
  • A / F boost meters
  • Radiator caps

Semiconductor Components

Please contact Sales & Marketing Dept. of NTK CERAMIC CO., LTD., sales subcontractor of NGK SPARK PLUG CO., LTD., for inquires about semiconductor component.

Sales & Marketing Dept. , NTK CERAMIC CO., LTD.

2808, Iwasaki, Komaki, Aichi Pref. 485-8510, Japan
TEL: +81-568-76-1223, FAX: +81-568-76-1297

Cutting Tools

Please contact Cutting Tools Div. Sales Dept. for inquiries about cutting tools.

Cutting Tools Div.
Sales Dept.

Komaki Plant
2808, Iwasaki, Komaki, Aichi Pref. 485-8510, Japan
TEL: +81-568-76-1271, FAX: +81-568-76-1288

Products that are mainly manufactured by Cutting Tools Div., such as NTK cutting tools, are explained in detail at the NTK CUTTING TOOLS.
Contact the NTK CUTTING TOOLS for the latest information or inquiries about products and events.

Medical products

Please contact Business Development Div. Medical Products Dept. for inquiries about medical products.

Business Development Div.
Medical Products Dept.

Komaki Plant
2808, Iwasaki, Komaki, Aichi Pref. 485-8510, Japan
TEL: +81-568-76-1251, FAX: +81-568-76-1376

Fine Ceramics

Please contact Industrial Ceramics Div. Piezo Products Dept. for fine ceramics-related inquiries.

Industrial Ceramics Div. Piezo Products Dept.

Komaki Plant
2808, Iwasaki, Komaki, Aichi Pref. 485-8510, Japan
TEL:0568-76-1381 FAX:0568-76-1292

※For inquiries concerning wear-resistant parts or other ceramic products, please contact NTK CERATEC CO., LTD.

NTK CERATEC CO., LTD. Ceramics Div. Ceramics Sales Dept.

Kanda Grow Building 2F, 1-34-4, Kanda Yokosuka-cho, Chiyoda-ku, Tokyo 101-0041, Japan
TEL: +81-3-5256-2362 FAX: +81-3-5256-2361

General Inquiry Contact Information

This website contains all information about NGK SPARK PLUG CO., LTD. including company business activities, company data, product data, IR data, and other information. This website is run by the Public Relations Office.
Contact the Public Relations Office for information on all business activities of our company.

Corporate Strategy Gr.
Public Relations Dept.

Headquarters & Nagoya Plant
14-18, Takatsuji-cho, Mizuho-ku, Nagoya 467-8525, Japan

Contact NGK SPARK PLUG's GROUP Company

Please contact the NGK group company for inquiries or comments related to medical products or services.
For information regarding group companies, please visit Global Network webpage

Global Network