This set of 4 Bosch spark plugs, part number 0242229534, is designed for optimal ignition performance. These standard nickel spark plugs feature a M 14 x 1.25 thread size and a 1 mm spark position. The spanner size is 20.8 mm, and the thread length is 12.7 mm. The electrode gap is set at 0.6 mm. These spark plugs are cross-referenced with ACDelco, Champion, Denso, Motorcraft, NGK, and compatible with OEM references from Buick, Chevrolet, Honda, and Oldsmobile. They are suitable for various vehicle makes and models including VW Beetle. For any queries, please contact us. If ordered before 2:30 PM Monday to Friday, same-day dispatch is available.