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 automotive relay designed for straightforward plug-and-play installation in a wide range of vehicles, including trucks, vans, SUVs, motorcycles, and marine applications. Rated at a heavy-duty 40 amps, this relay delivers stable electro-mechanical switching and consistent power distribution even under continuous high-current demands. The compact relay body measures approximately 0.98 x 1.06 x 1.10 inches, making it easy to fit into tight engine bays or electrical panels. The included harness socket features 12AWG color-labeled wires — yellow, black, red, and white — spanning 4.92 inches in length, allowing for quick and accurate connection identification that minimizes wiring errors. A metal mounting bracket (0.59 x 1.57 inches) is also included for secure, vibration-resistant installation. Operating on DC power at 12V, this general-purpose relay is well-suited for controlling lights, horns, fans, and other automotive accessories. The 4-pin SPST configuration keeps wiring simple and efficient, making it an ideal choice for both experienced installers and DIY enthusiasts tackling automotive electrical projects.

• SPST 4-PIN RELAY DESIGN: Features an enclosed 4-pin single pole single throw configuration for straightforward plug-and-play installation in DIY automotive wiring projects.
• HEAVY-DUTY 40A LOAD CAPACITY: Rated at 40 amps to deliver reliable power distribution for trucks, vans, SUVs, motorcycles, and other high-demand automotive applications.
• COLOR-LABELED 12AWG WIRES: Includes color-coded wires (yellow, black, red, and white) to simplify connection identification and minimize wiring errors during installation.
• COMPACT 12V DC RELAY: Measures 0.98 x 1.06 x 1.10 inches and operates on 12V DC power, providing stable electromechanical switching for continuous high-current applications.
• VERSATILE AUTOMOTIVE USE: Suitable for general purpose use across a wide range of vehicles including cars, trucks, vans, motorcycles, and off-road applications requiring dependable DC power switching.