JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Color-Labeled Wires for Automotive Truck Van Motorc

The JD1912 Car Relay Harness is a reliable 12V 40A 4-pin SPST relay solution designed for a wide range of automotive applications, including trucks, vans, and motorcycles. Built to handle a robust 40A load current, this relay delivers stable power switching for high-draw accessories such as headlights, horns, cooling fans, and more. The pre-wired harness socket features color-labeled 12AWG wires — yellow, black, red, and white — making identification straightforward and installation fast, eliminating the need for custom wiring setups. The compact relay body measures approximately 0.98 x 1.06 x 1.10 inches, while the harness extends 4.92 inches for flexible routing. A metal mounting bracket (0.59 x 1.57 inches) is included for secure, fixed installation. Operating on a 12V DC power source, this SPST relay is compatible with standard low-voltage automotive electrical systems. The precision-fit connector ensures a snug, secure connection every time. Ideal for general-purpose automotive use, this relay harness kit simplifies electrical upgrades and replacements in virtually any 12V DC vehicle system.

• SPST 4-PIN CONFIGURATION: Features a 12V DC, 40A single pole single throw relay designed for reliable switching in automotive, truck, van, and motorcycle electrical systems.
• COLOR-LABELED 12AWG WIRES: Pre-wired harness includes color-coded wires for easy identification, ensuring secure connections capable of handling up to 40A of current.
• PRE-WIRED HARNESS SOCKET: Precision-fit harness socket reduces installation time and eliminates the need for custom wiring, making setup straightforward and hassle-free.
• HIGH CURRENT CAPACITY: Supports up to 40A load current, providing stable and dependable power handling for headlights, horns, cooling fans, and other high-draw accessories.
• COMPACT DIMENSIONS: Relay measures 0.98 x 1.06 x 1.10 inches and the harness socket measures 1.10 inches wide with a 4.92-inch wire length for flexible installation in tight spaces.