R4, wheel brake cylinder rear. Suitable, on the left + on the right. Brake system: Bendix. Suitable for Renault R4

R1123 from 10/1962 to 12/1988, R1128/2391/2106/2370 from 1978 to 1990). Piston diameter: 20,64mm. Brake line connector: 3/8 x 24UNF. Mounting board bore: 31 mm. Length over everything: 56 mm.