NGK Spark Plug ZKBR7A-HTU- Set of 4 Set of 4 NGK Spark Plugs. When you require the best, count on The World Leader in spark plug technology NGK Spark Plugs. NGK offers the highest quality products for virtually every vehicle application. Count on NGK Spark Plugs to deliver the finest quality products and customer service. Designed by NGK Japan, 100% Genuine.