Aircraft Starter / Master Contactor Relay – S1578

This listing is for a Type S1578 aircraft starter/master contactor relay, commonly used in general aviation aircraft electrical systems.

Starter contactors are used to control the flow of electrical power from the aircraft battery to the starter motor and other primary electrical circuits. When activated by the cockpit switch, the internal coil engages the contactor, allowing high-current power to pass through the main terminals.

This style of relay is commonly installed in Cessna and Piper aircraft electrical systems and is used as either a starter contactor or master relay depending on installation configuration.

The unit features heavy-duty threaded power terminals for the high-current circuit and smaller terminals for the control coil, typical of aircraft electrical contactor assemblies.

The attached service tag indicates the component has been tested and marked serviceable by Stauning Aero Service.

Condition

Serviceable / tested
Shows normal cosmetic wear from service use
No structural damage visible

Guaranteed to pass your inspection or your money back.

See pictures for details.

Actual item shown.

Weight 1 lbs
Dimensions 6 × 6 × 6 in
Brand

White Rodgers Cessna

Manufacturer Part Number

S-1578 S1578

MPN

S-1578 S1578

Country/Region of Manufacture

US

Condition

Used

Condition Details

Safe $$$ nice pre-owned fully functional Item at a fraction of the List Price

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