JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat

The JD1912 Car Relay Harness is a 12V 40A 4-pin SPST relay designed for a wide range of automotive applications, including trucks, vans, motorcycles, and boats. Rated at 40 amps, it handles high-power accessories such as lights, horns, and winches with ease. The built-in diode safeguards your electrical system against voltage spikes and back EMF, providing an added layer of protection for sensitive components. Heavy-duty 12AWG copper wires ensure reliable current flow while minimizing heat buildup, even under demanding conditions. The pre-assembled harness and socket make installation straightforward, eliminating the need for custom wiring. With a compact footprint measuring approximately 1.3 x 2.1 inches and 7.47-inch wire leads, this relay fits neatly into tight spaces. Its universal 4-pin design is compatible with most standard automotive relay sockets, making it a versatile and dependable choice for DIY enthusiasts and professional installers alike.

• BUILT-IN DIODE PROTECTION: The integrated diode safeguards your vehicle's electrical system from voltage spikes and back EMF damage.
• HEAVY-DUTY 12AWG WIRING: Thick copper wires ensure reliable current flow, reduced heat buildup, and long-lasting performance under demanding conditions.
• HIGH-POWER RATED: Operates at 12V with a 40A rating, making it ideal for powering high-draw accessories such as lights, horns, and winches.
• UNIVERSAL 4 PIN SPST DESIGN: Compatible with a wide range of vehicles including cars, trucks, vans, motorcycles, and boats for versatile use.
• PRE-ASSEMBLED HARNESS SOCKET: Comes ready to install with a plug-and-play harness socket, eliminating the need for custom wiring or additional connectors.