Description: NGK has been developing spark plug technology since the 1930s and manufacture plugs for every type of automotive engine as well as for motorcycles marine horticultural plant and many other applications. In fact NGK produces and stocks over 1000 different types of spark plug and every product matches even the most demanding manufacturers' specifications. The vast experience and technology that NGK has ensures that there is no doubt that NGK are the world's No.1 spark plug.