You are buying A Clutch Master cylinder repair / Seal kit to fit Make Model Type Year From Year To BMW 3 Series E21 1975 1982 See Compatibility List for Full Details 19mm bore Important Information Please read prior to purchase It is common practisefor vehicle manufacturers to fit not only different makes of Master cylinder to the same range of vehicles, but also differing sizes. In most cases this information will be needed to confirm the suitability of a particular kit. The size is normally stamped into the casting, however this is not always visible without removing. Sizes are normally expressed in the major measurment, ie 23.8mm bore cylinders will be stamped 23 Please see below the most common size chart with Imperial equivalents.
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