OER Parts offers a wide selection of Relays for your 1974 Oldsmobile Omega. OER Parts offers 1974 Oldsmobile Omega Power Window Relay, 1974 Oldsmobile Omega Fuel Pump Relay, 1974 Oldsmobile Omega AC / Blower Motor Relay, 1974 Oldsmobile Omega Headlamp Relay, 1974 Oldsmobile Omega Coolant Fan Relay, 1974 Oldsmobile Omega Horn Relay, 1974 Oldsmobile Omega Fog Lamp Relay, and 1974 Oldsmobile Omega Multiple Task Relay.