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Item #:
9428411
Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle
86% of respondents would recommend this to a friend
Item #:
9428411
GMD 1092
Price Details
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Imported from USA store
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Order now and get it around Thursday, October 08
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Brand new heavy duty SPST(Single Pole Single Throw) relays with color-labeled wires.Minimum operating voltage 8V, corresponding minimum operating current is 100mA; Standard operating voltage 12V, corresponding standard operating current is 150mA.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Current Capacity
Designed to handle up to 40A, this relay harness ensures reliable performance across various vehicles, from trucks to motorcycles, preventing overheating and failure during heavy-duty applications.
Built-in Diode
The integrated diode protects against voltage spikes, enhancing the longevity of your electrical system. This feature is essential for ensuring safe and stable operations in automotive environments.
Versatile Compatibility
With a 12V rating and 4-pin SPST design, this harness fits numerous automotive applications including cars, vans, and boats, making it a one-stop solution for diverse vehicle needs.
Product Details
- Brand new heavy duty SPST relays with color-labeled wires
- Minimum operating voltage 8V, operating current is 100mA; Standard operating voltage 12V, standard operating current is 150mA
- Small size, low power consumption, high contact voltage, high sensitivity
- Life Expectancy Electrical: 100,000 Operation, Life Expectancy Mechanical: 10,000,000 Operation
- Interchangeable/Compatible with all automobiles and devices equipped with a 12 Volt DC power source
- Relay load: 40A/12VDC, Contact Resistance: ≤ 100MΩ, Life Expectancy Electrical: 100,000 Operations (at 30 Operations/min), Life Expectancy Mechanical: 10,000,000 Operations
| Connector Type | Spade |
| Contact Type | Normally Open |
| Current Rating | 40 A |
| Mounting Type | Socket Mount |
| Operation Mode | Manual |
| Wattage | 480 watts |
| Coil Voltage | 12 volts |
| Contact Current Rating | 40 A |
| Maximum Switching Current | 40 A |
| Minimum Switching Voltage | 8 volts |
| Upper Temperature Rating | 70 °C |
| Operating Time | 0.02 seconds |
| Contact Material | Silver Alloy |
| Brand Name | Gebildet |
| UPC | 694090222994 |
| Number of Packs | 2 |
| Unit Count | 2 Count |
| Number of Items | 2 |
| Manufacturer | Gebildet |
| Model | E079 |
| Part Number | E079 |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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Automotive Technicians
Perfect for professionals needing reliable relay harnesses for various automotive applications and troubleshooting.
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DIY Enthusiasts
Ideal for hobbyists wanting to customize their vehicle's electrical systems with efficient relay setups.
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Motorcycle Riders
Great for bikers requiring a durable and compact relay system to enhance their bike's electrical performance.
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High-Power Use
Not suitable for applications requiring more than 40 amps, limiting its use in high-power electrical systems.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the JD1912 Car Relay Harness used for?
Answer: The JD1912 Car Relay Harness is essential for automotive applications, primarily functioning as a switch for higher current loads in vehicles like trucks, vans, motorcycles, and boats. It allows you to control devices such as lights, horns, and motors efficiently without overloading the vehicle’s electrical system. Utilizing standard 12V systems, this harness can simplify connections and enhance performance in various setups, making it ideal for DIY enthusiasts and professional installers alike. -
Question:
How do you install the JD1912 Car Relay Harness?
Answer: Installing the JD1912 Car Relay Harness involves a few straightforward steps. You'll start by connecting the color-labeled wires according to your vehicle's schematic, ensuring proper connections to the power source and load. The harness features a 4-pin SPST design, making it compatible with various automotive applications. This clarity in wiring allows users, both novice and experienced, to set up connections efficiently, ensuring that your accessories or upgrades function as intended without confusion. -
Question:
What is the current rating of the JD1912 Car Relay Harness?
Answer: The JD1912 Car Relay Harness is rated for up to 40A, making it suitable for high current applications. This ensures reliability when switching on devices that require significant electrical current, such as lighting systems or electric fans. This robust design not only prevents overheating but also adds a layer of safety, allowing users to confidently control larger accessories in their automotive setups. -
Question:
Are the wires color-coded in the JD1912 harness?
Answer: Yes, the JD1912 Car Relay Harness features color-coded wires, which simplifies installation and ensures that users can easily identify connections. Each wire is labeled for specific functions such as power input, output to the load, and ground, reducing the chances of mismatched connections. This thoughtful design caters to both beginners and professionals, promoting a smoother installation process across various vehicles. -
Question:
Is the JD1912 suitable for marine applications?
Answer: Absolutely! The JD1912 Car Relay Harness is versatile enough for marine applications, such as boats, because it operates efficiently in 12V systems. The harness's components are designed to withstand the demands of outdoor conditions, making it reliable for controlling equipment like bilge pumps and navigation lights. This adaptability enhances both safety and functionality during your marine adventures. -
Question:
Can I use the JD1912 harness with LED lights?
Answer: Yes, the JD1912 Car Relay Harness is perfect for use with LED lights. Its 40A rating ensures that even multiple LED fixtures can be powered without risking overload. With the harness enabling efficient control over your lighting systems, it also minimizes electrical interference, allowing users to enjoy bright, consistent illumination for their vehicles, be it on the road or off-the-beaten-path. -
Question:
How many harnesses come in a pack of JD1912?
Answer: The JD1912 Car Relay Harness is sold in a pack of two, giving you the flexibility to work on multiple projects or circuits simultaneously. This is particularly beneficial for automotive enthusiasts or professionals who may need to install multiple auxiliary components in a single vehicle. The availability of two harnesses allows you to create robust electrical solutions without waiting for additional components. -
Question:
What is the wire gauge of the JD1912 relay harness?
Answer: The JD1912 Car Relay Harness comes with a 12AWG wire gauge, which is a solid choice for handling high current without significant voltage drop. This thicker wire not only improves efficiency but also enhances safety by reducing the risk of overheating during operation. Users can rely on this gauge to ensure that their automotive accessories operate smoothly, even under demanding conditions. -
Question:
Where can I buy the JD1912 Car Relay Harness in The Gambia?
Answer: You can purchase the JD1912 Car Relay Harness from Ubuy in The Gambia. Ubuy offers a reliable platform with a variety of automotive accessories, ensuring you can find the right harness to suit your needs. Their user-friendly interface and quick access to product details make it a convenient choice for securing your JD1912 harness and enhancing your vehicle's functionality. -
Question:
Can the JD1912 Car Relay Harness be used with non-automotive applications?
Answer: Yes, the JD1912 Car Relay Harness can be applied to various non-automotive applications that require a 12V relay setup. This includes home automation projects or any DIY electronics that necessitate switching larger loads. Its versatility enables users to engage in creative projects beyond automotive, making it a valuable addition for hobbyists looking to simplify their electronic connections.
Gebildet Starter Editorial Review
Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle offers an impressive solution for managing electrical needs in vehicles. Many users appreciate the harness's robust build and the thoughtful inclusion of color-coded wires, which simplifies installation for even those with limited experience. This relay harness accommodates various applications, making it ideal for connecting accessories like light bars to a vehicle's power source. Although it lacks comprehensive installation instructions, its water-resistant design and reliable performance have garnered favorable feedback. Users note that it effectively reduces battery drainage when the vehicle is not in use, proving to be a practical choice for automotive enthusiasts.
Customer Reviews & Ratings
2423 customers ratings
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5 Star
83%
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4 Star
10%
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3 Star
4%
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2 Star
1%
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1 Star
2%
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Pros
- High-quality construction ensures durability
- Color-coded wires simplify installation
- Handles up to 40 amps efficiently
- Waterproof design for outdoor use
- Versatile connections for various applications
Cons
- Installation requires basic knowledge of circuitry
Platform Trust & Buyer Confidence
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Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Important information
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GMD 1092
Order now and get it around Thursday, October 08
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Compatible with all automobiles and devices with 12V DC power source
- Relay load: 40A/12VDC
- Features Ag Alloy contact material for better conductivity
- 100,000 electrical operations and 10,000,000 mechanical operations
- Small size, low power consumption, and high sensitivity
- After-sale service and customer satisfaction guaranteed
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