This is a genuine GM AC Delco horn relay as shown for the 58-62 GM Full Size cars like Pontiac Laurentian/Parisienne, Impala & Belair & El Camino etc.

Power Window or Tailgate Window Relay 

ALSO Used on may 67-75 GM full size and intermediate models like the 67-75 Firebird

 

 

Buick Applications: Horn Relay 

1957-1958 Buick

Cadillac Applications: Horn Relay 

1958-1966 Cadillac Calais 

Chevrolet Applications: Horn Relay 

1957-19627 Chevrolet full size

1962-1962 Chevrolet Chevy II 

1959-1960 Chevrolet El Camino 

1964-1965 Chevrolet El Camino 

1968-1972 Chevrolet El Camino 

Pontiac Applications: Horn Relay 

1957-1966 Pontiac full size & GP

1966-1966 Pontiac GTO / LeMans/ Tempest

1962-1966 Pontiac Parisienne