NGK Pride themselves on being the No1 OEM supplier. Quintet 1.6 (1981-1983) 01/81-07/83. Sigma 2.0 (1980-1982) 01/80-12/82. Sigma 1.6 (1980-1982) 01/80-12/82. Land Rover. Component Spark Plug. Spark Plug 1 - Earthed Electrode; interference Suppression 5 kOhm; Nickel Middle Electrode; Unscrewable SAE connector; with gasket seat.