Keep your vehicle's electrical systems running smoothly with this set of five 12V 40A 5-pin SPDT car relays, each complete with a pre-wired harness socket. Rated at 40 amps and 12 volts, these relays are built to handle the demands of a wide range of vehicles, including cars, trucks, vans, motorcycles, and boats. The 5-pin SPDT (Single Pole Double Throw) configuration offers versatile switching capability, making them ideal for controlling high-current accessories such as lights, horns, fans, and more. Each relay comes pre-assembled with a matching socket and color-labeled wires, so you can identify connections at a glance and reduce the risk of wiring errors. The corrosion-resistant terminals ensure dependable performance even in challenging conditions. With five complete relay-and-socket sets included, you'll have everything you need for multiple installations or replacements in one convenient package. A practical solution for DIY automotive enthusiasts and professional installers alike.