---
product_id: 54376074
title: "2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat"
brand: "gebildet"
price: "$26.05"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/54376074-2pcs-jd1912-car-relay-harness-12v-40a-4-pin-spst
store_origin: US
region: United States of America
---

# 40A Switching Power 12V Operational Voltage 100,000 Cycle Life 2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat

**Brand:** gebildet
**Price:** $26.05
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Ride with Confidence!

## Quick Answers

- **What is this?** 2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat by gebildet
- **How much does it cost?** $26.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/54376074-2pcs-jd1912-car-relay-harness-12v-40a-4-pin-spst)

## Best For

- gebildet enthusiasts

## Why This Product

- Trusted gebildet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Design:** Built to last with a life expectancy of 100,000 electrical operations and 10 million mechanical operations.
- • **Compact & Efficient:** Small size and low power consumption make it perfect for any vehicle setup.
- • **Powerful Performance:** Experience reliable 40A switching capability for all your automotive needs.
- • **Versatile Applications:** Ideal for automotive, trucks, vans, motorcycles, and boats—your go-to relay solution!
- • **Color-Coded Convenience:** Easily identify connections with color-labeled wires for hassle-free installation.

## Overview

The GebildetJD1912 Car Relay Harness is a robust 12V relay solution designed for automotive applications. With a 40A switching capability and color-labeled wires, it ensures easy installation and reliable performance. Built to endure, it boasts a life expectancy of 100,000 electrical operations, making it a must-have for any vehicle enthusiast.

## Description

Gebildet 2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat

## Features

- About this item     Brand new heavy duty SPST(Single Pole Single Throw) relays with color-labeled wires     Rated operational voltage: 12V/ Switching Capability: 40A     Minimum operating voltage 8V, corresponding minimum operating current is 100mA; Standard operating voltage 12V, corresponding standard operating current is 150mA.     Small size/Low power consumption/High contact voltage/ High sensitivity     Contact Material: Ag Alloy / Contact Resistance: ≤ 100MΩ. Life Expectancy Electrical: 100,000 Operation, Life Expectancy Mechanical: 10,000,000 Operation.    ›See more product details

## Images

![2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat - Image 1](https://m.media-amazon.com/images/I/516oU5co43L.jpg)

## Available Options

This product comes in different **Colour Name** options.

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**Shop now:** [https://www.desertcart.us/products/54376074-2pcs-jd1912-car-relay-harness-12v-40a-4-pin-spst](https://www.desertcart.us/products/54376074-2pcs-jd1912-car-relay-harness-12v-40a-4-pin-spst)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*