Here is a New Old Stock Intermotor Oil Pressure Switch for 

Peugeot

104 1.0, 1.1, 1.2, 1.4 1972-83

104 S, ZS 1.4 1981-83

204 1.1 1965-76

205 1.0, 1.1, 1.4, 1.4GT 1983 on

304 1.1, 1.3 1969-80

305 1.3, 1.5 1978 on

305 S 1.5 1981 on

404 1.6 1960-73

404 Injection 1966-73

504 1.8, 2.0 1968-82

504 2.0 1979-82

504 Injection 1968-82

504 V6 Coupe 1974-82

505 1.8, 2.0 1979 on

505 2.0 Ti, STi, Injection 1979-86

505 2.2 GTi 1967-88

505 V6 1989-90

604 2.7 V6 1975 on

604 Ti, Injection 1977 on models.