Keep your vehicle's electrical system running smoothly with this set of 5 automotive relays, each rated at 12V and 40A with a 5-pin SPDT (Single Pole Double Throw) configuration. Designed for use in cars, trucks, vans, motorcycles, and boats, these relays deliver reliable high-current switching for a wide range of 12V applications including lighting, horns, cooling fans, fuel pumps, and more. Each relay comes pre-assembled with a matching harness socket featuring color-labeled wires, making installation straightforward and virtually error-free — no guesswork required when connecting to your vehicle's wiring. The durable construction handles demanding electrical loads consistently, while the plug-and-play design simplifies both new installations and replacements. A metal mounting bracket on each relay allows for secure, fixed placement in tight engine bays or electrical panels. Whether you're upgrading your electrical setup or replacing a faulty relay, this 5-pack provides everything you need to get the job done right the first time.