Here is a New Old Stock Direct Components 14.3mm Rear Wheel Cylinder for 

Audi

50 all models without brake pressure regulator 1974-79

80 1.3, 1.5, 1.6 without brake pressure regulator 1974-78

80 1.3, 1.6, 1.6D, 1.6TD, 1.8, 1.9, 2.0i, 1.1i 1978-84 (option of 3 so please check your old cylinder size)

80 1.3, 1.6, 1.6D, 1.6TD, 1.8, 2.0 1084-86 (option of 2 so please check your old cylinder size)

80 Quattro 1983-86

Coupe 1.8, 1.9, 2.0, 2.1, 2.2, 2.3 without brake pressure regulator 1981-84

VW

Derby 1.0, 1.1, 1.3 without brake pressure regulator (up to chassis no. F127903) 1977-85

Golf Mk1, Mk2 1.0, 1.1, 1.3, 1.5, 1.5D, 1.6 Automatic 1974-91

Golf Mk1, Mk2 1.6D, 1.6TD Automatic 1980-91

Jetta Mk1, Mk2 1.1, 1.3 1981-91

Jetta 1.5, 1.6, 1.6D, 1.6TD, 1.8 Automatic 1980-92

Passat 1.6D, 1.6TD 1984-88

Polo Mk1, Mk2 900, 1.1, 1.3, 1.5 without brake pressure regulator 1975-2/1985

Scirocco Mk1 1.1, 1.3, 1.5, 1.6, 1.8 1976-83 models.