BP7ES Spark Plug | NGK 1034Premium NGK spark plugs are known for their reliable performance and superior anti-fouling characteristics. NGK spark plug BP7ES Stock number 1034 14mm x 1.25mm thread 19.0mm thread length Projecting insulator type Gasket seat Standard type Gap 0.035 in. (0.9mm) 13/16 in. hex Replaces Volvo Penta 875820