The Motorcraft SW6578 is a clutch starter safety switch used on select manual-transmission Ford applications, preventing the starter from engaging unless the clutch pedal is fully depressed. As a Motorcraft part, it is built to the same specification Ford uses at the factory, so fit, connector type, and switch actuation match the original equipment rather than a generic aftermarket replacement. A failing switch on this circuit typically shows up as an intermittent no-start or a car that only starts with the clutch pedal held in an unusual position, both of which point back to this component.

Motorcraft SW6578 Clutch Starter Safety Switch Features:

• Genuine Motorcraft OE replacement engineered to Ford factory specifications.
• OE-style connector provides a secure, positive electrical connection.
• Direct-fit design allows installation without modification to the factory wiring or clutch pedal assembly.
• Applications include select manual-transmission Ford Focus, Fusion, and Mustang models; verify exact fitment for your specific vehicle before ordering.