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Item #:
94817686
4 PCS Relays, 5 Pin Relay, 40A Waterproof Car Relays, 12V Relay Switch for Electric Cooling Fans, Motor Starters, Automotive Taillights
Item #:
94817686
RON 78
Price Details
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*All items will import from US
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Imported from USA store
Order now and get it around Friday, August 14
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Enhance your vehicle’s efficiency and reliability with our durable, waterproof, and easy-to-install relays.
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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 Capacity
Each relay supports up to 40A current, making it ideal for high-demand applications like cooling fans and motor starters, ensuring reliability in critical automotive systems.
Waterproof Design
Engineered for durability, these relays are waterproof, protecting against moisture and environmental damage, ensuring long-lasting performance in various automotive conditions.
Versatile Use
These relays can be employed for multiple automotive applications, including taillights and electric fans, providing flexibility and convenience for diverse wiring needs.
Product Details
| Connector Type | Screw |
| Contact Type | Normally Open |
| Current Rating | 40 Amps |
| Mounting Type | Plug In Mount |
| Operation Mode | Automatic |
| Wattage | 1.8 watts |
| Coil Resistance | 90 Ohms |
| Coil Voltage | 12 Volts (DC) |
| Contact Material | Copper |
| Brand Name | ecocstm |
| Part Number | ecocstm-AR-01 |
| Manufacturer | ecocstm |
| Specification Met | IP67 |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
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Car Enthusiasts
Ideal for those upgrading or modifying their vehicles, ensuring efficient cooling and electrical functions.
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Mechanics & Technicians
Perfect for professionals needing reliable relays for various automotive applications and repairs.
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DIYers
Great for hobbyists who engage in custom automotive projects, providing a durable and waterproof relay solution.
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Low-Power Applications
Not suitable for devices that require less than 12V or 40A, as it exceeds necessary specifications.
Product Description
4 PCS Relays, 5 Pin Relay, 40A Waterproof Car Relays, 12V Relay Switch for Electric Cooling Fans, Motor Starters, Automotive Taillights
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are 5 pin relays used for?
Answer: 5 pin relays are commonly used to control high-current devices in automotive and electrical systems. They act as switches, allowing low-current signals to control larger loads, such as electric cooling fans, motor starters, or automotive taillights. These relays provide efficient power management and isolation between low-voltage digital circuits and high-voltage devices. -
Question:
Can these relays be used in marine applications?
Answer: Yes, the waterproof feature of these relays makes them suitable for marine applications. They can effectively handle moisture and water exposure, making them ideal for boat lighting, pumps, and other electrical components commonly found in a marine environment. Using reliable relays in such settings ensures safety and longevity of the electrical system. -
Question:
What is the maximum current rating of these 12V relays?
Answer: These relays have a maximum current rating of 40A, which allows them to handle substantial electrical loads. This makes them reliable for applications requiring significant power, such as running electric motors, high-drain LED lights, or cooling systems in vehicles. Proper use of the rated capacity ensures optimal performance without overheating or damaging the relay. -
Question:
Are these relays compatible with all vehicle types?
Answer: Yes, the 12V relays are designed to be compatible with most automotive electrical systems. They can be used in cars, trucks, and motorcycles. Their versatility allows them to be adapted for various electrical setups, making them an excellent choice for automotive enthusiasts looking to upgrade or repair their vehicle's electrical systems. -
Question:
Can I use these relays for home appliances?
Answer: While primarily designed for automotive applications, these relays can also be used for home appliances if they match the required specifications. For example, they can control high-power devices like HVAC systems, water pumps, or lighting setups. Ensure that the appliance's voltage and current requirements conform to the relay's specifications for safe operation. -
Question:
What does it mean that these relays are waterproof?
Answer: Waterproof relays are designed to withstand moisture, humidity, and splashes, making them suitable for outdoor or damp environments. This characteristic is essential for automotive applications where water exposure is inevitable. Using waterproof relays helps avoid electrical failures and corrosion, ensuring reliable performance in challenging conditions. -
Question:
How do I wire these relays correctly?
Answer: Wiring these relays involves connecting the control signal wire to the coil terminal and the load wires to the switch terminals. Typically, the coil receives the low-voltage signal, activating the relay to connect the high-current load. It’s important to follow the wiring diagram specific to the relay to avoid incorrect connections that could damage the relay or the connected device. -
Question:
Are these relays suitable for automotive lighting?
Answer: Yes, these relays are perfect for automotive lighting applications. They can control high-beam, low-beam, or auxiliary lights, providing reliable operation without overloading the vehicle's electrical system. By using these relays, you enhance the efficiency, responsiveness, and safety of your vehicle’s lighting system, preventing potential electrical issues. -
Question:
What is the significance of having 4 PCS in a pack?
Answer: Having 4 relays in a pack provides excellent value and convenience for users who might need multiple relays for various applications. This packaging allows for simultaneous replacement of worn-out relays in a vehicle or installation across different systems without the need to purchase additional units. It is a practical solution for DIY projects or maintenance. -
Question:
Are these relays compatible with LED light systems?
Answer: Yes, these relays are compatible with LED light systems, provided they meet the voltage and current specifications. The efficient switching capability of these relays can enhance the performance of LEDs, ensuring they receive stable power. Properly pairing these relays with LED setups can prevent flickering and provide consistent illumination. -
Question:
Where can I buy 4 PCS Relays in Romania?
Answer: You can conveniently purchase 4 PCS Relays, 5 Pin Relay, 12V 40A Relay, Waterproof Car Relays, and Relay Switch for Electric Cooling Fans, Motor Starters, Automotive Taillights at Ubuy. Ubuy offers a wide selection of relays and ensures that you get reliable products for your automotive and electrical needs.
ecocstm Starter Editorial Review
The 4 PCS Relays package has garnered mixed reactions from customers. Many users appreciate the affordable pricing and the quality of the relays themselves, noting that they fit well for specific models, such as the 2006 Chrysler 300. Installation is often described as simple, which adds to the overall positive sentiment among certain buyers. However, not all experiences have been favorable. Some customers report reliability issues, indicating that the relays may not provide sufficient power, leading to performance problems with their vehicles. There are also mentions of fit discrepancies, as some users have found these relays to be not exact matches for their original equipment, with specific caution raised regarding compatibility with certain models like the 2009 Subaru Outback. In summary, while many find value in the relays’ quality and cost-effectiveness for select vehicles, others have faced significant challenges regarding functionality and fit, making these relays a product that may require careful Consideration based on specific vehicle needs. **
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Pros
- Affordable price
- Good quality relay for certain models
- Easy to install
Cons
- Not an exact replacement for all models
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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RON 78
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Features & Benefits
- Made of high-quality PA66 flame-retardant material for durability.
- Features pure copper enameled wires for excellent conductivity.
- IP67 waterproof and dustproof for reliable performance in humid environments.
- Includes four starter relays with a five-pin design for easy installation.
- Suitable for various applications like automobiles, motorboats, and more.
- Quick and straightforward installation process without additional tools needed.
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