NGK 3975 Spark plug Spanner Size: 20,8 mm

Spanner Size: 20,8 mm; Thread Size: M14 x 1,25; Thread Length [mm]: 12,7; Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat; Spark Position [mm]: 3,5; Product line: V-Line; Electrode Gap [mm]: 0,7, 0,6, 0,8; Construction Year to: 01/1990, 01/1982, 09/1984, 03/1985; TecDoc Engine Number: 3028, 3013, 3038, 3036, 3032, 21386, 3034, 5088, 601, 600, 599, 701, 700, 690, 871, 873, 3608, 5346, 5195, 5341, 5345, 688, 3919, 4900, 5348; Engine Code: M22 / M23, 742.12, M20, B18 A / D, 742.13