One new EPC brand transmission front oil seal, part number NA090, 15-98701, B364, WR340, S3506, 8544355, CY123013, 17x35x8, 052-1856, N75.123.  This fits:

Renault 4CV 1955 - 1960
Renault Dauphine 1955 - 1963
Renault R8 & Caravelle 1959 - 1965
Renault R10 & Caravelle S 1100cc 1966 - 1971