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Item #:
103041252
Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor
Item #:
103041252
FJD 126
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Imported from USA store
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Order now and get it around Wednesday, August 19
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What Stands Out
High Precision
This sensor ensures accurate monitoring of engine coolant temperature, helping prevent overheating and engine damage, resulting in optimal vehicle performance and longevity.
Easy Installation
Designed specifically for Mazda models, this coolant temperature sensor offers a straightforward installation process, saving time and ensuring a proper fit without modifications.
OEM Quality
As a genuine Mazda part, it guarantees reliability and durability, assuring customers of superior quality compared to aftermarket alternatives, enhancing trust and value for their investment.
Product Details
| Mounting Type | Flange Mount |
| Output Type | Push Button |
| Specific Uses For Product | Temperature |
| Smart Home Compatibility | Not Smart Home Compatible |
| Material Type | Brass |
| Style Name | Modern |
| Item Dimensions | 6 x 4 x 4 inches (15.2 x 10.2 x 10.2 cm) |
| Item Weight | 9.98 g |
| Brand Name | Mazda |
| Model | B593-18-840A |
| Manufacturer | Mazda |
| Part Number | B593-18-840A |
| Unit Count | 1.0 Count |
| Brand | Mazda |
| Item dimensions L x W x H | 6 x 4 x 4 inches (15.2 x 10.2 x 10.2 cm) |
| Material | Brass |
| Style | Modern |
Who Should Buy?
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Mazda Owners
Ideal for Mazda vehicle owners needing a reliable temperature sensor for optimal engine performance and maintenance.
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DIY Mechanics
Great for home mechanics looking to replace or upgrade their coolant temperature sensor without professional help.
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Engine Tuners
Perfect for performance tuners aiming to enhance engine monitoring and precision for better tuning adjustments.
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Non-Mazda Cars
Not suitable for vehicles other than Mazda, as compatibility issues may arise with other brands.
Product Description
Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the purpose of the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor?
Answer: The Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor monitors the temperature of the engine coolant. This information is critical for the engine control unit to optimize the fuel-to-air mixture for effective combustion. By ensuring the engine operates at the correct temperature, this sensor plays a vital role in preventing overheating and enhancing performance. For instance, if the sensor malfunctions, it can lead to poor engine performance and increased fuel consumption, making it essential for vehicle maintenance. -
Question:
How can I determine if my engine coolant temperature sensor needs replacement?
Answer: If your vehicle exhibits unusual behaviors such as engine overheating, poor fuel efficiency, or incorrect temperature readings on the dashboard, it may indicate a failing coolant temperature sensor. Additionally, check for diagnostic trouble codes (DTCs) using an OBD-II scanner. A reading of P0117 or P0118 may suggest issues with the coolant temperature sensor. Monitoring these signs will assist you in determining when a replacement is required, helping to maintain optimal engine function. -
Question:
Is the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor compatible with all Mazda models?
Answer: No, the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor is specifically designed for select Mazda models. It's crucial to verify compatibility with your vehicle's model and year before purchasing. Refer to your owner's manual or check with a trusted dealer for compatibility details. Using the correct sensor for your specific model ensures accurate readings and optimal engine performance, thus preventing potential issues related to temperature regulation. -
Question:
What are the symptoms of a faulty engine coolant temperature sensor?
Answer: Symptoms of a malfunctioning engine coolant temperature sensor include fluctuating temperature gauge readings, engine overheating, poor fuel efficiency, and trigger check engine light. In some cases, it might also lead to hard starting or stalling. Recognizing these symptoms promptly allows you to address the problem swiftly, preventing further damage to the engine and ensuring the reliability of your vehicle during operation. -
Question:
Can I install the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor myself?
Answer: Yes, with basic automotive knowledge and tools, you can replace the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor yourself. The installation typically involves locating the sensor on the engine, disconnecting the electrical connector, and unscrewing the old sensor. After securing the new sensor in place, reconnect the wiring. This process can be particularly beneficial for those who enjoy DIY repairs, allowing them to save on labor costs while maintaining their vehicle. -
Question:
What role does the engine coolant temperature sensor play in fuel efficiency?
Answer: The engine coolant temperature sensor significantly influences fuel efficiency by allowing the engine control unit to adjust the fuel-to-air ratio. When the engine is cold, it requires a richer fuel mixture to operate smoothly. As the engine warms up, the sensor informs the ECU to lean the mixture out for optimal combustion. Thus, an accurate temperature reading promotes better fuel economy and reduced emissions, making it essential to ensure the sensor is functioning correctly. -
Question:
How does a malfunctioning engine coolant temperature sensor affect emissions?
Answer: A malfunctioning engine coolant temperature sensor can lead to increased emissions. If the sensor incorrectly signals the coolant temperature, it may cause the engine control unit to use an improper fuel-to-air ratio. An overly rich mixture results in incomplete combustion, leading to higher emissions of hydrocarbons and carbon monoxide. Addressing sensor issues promptly can help in maintaining environmental standards and ensuring your vehicle passes emission tests. -
Question:
What should I do if I receive a check engine light related to the coolant temperature sensor?
Answer: If the check engine light illuminates, indicating an issue with the coolant temperature sensor, the first step is to retrieve diagnostic trouble codes using an OBD-II scanner. If codes related to the temperature sensor, such as P0117 or P0118, appear, consider replacing the sensor. Ignoring this light can lead to more severe engine issues. Regularly checking sensor functionality can aid in proactive maintenance, ensuring your vehicle operates within optimal parameters. -
Question:
Where can I buy the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor?
Answer: You can buy the Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor from Ubuy in Fiji. Ubuy provides a reliable platform for purchasing automotive parts, ensuring you receive original and authentic products directly from trusted suppliers. Shopping through Ubuy offers convenience and access to a variety of options, making it easy to find the right part for your vehicle. -
Question:
What is the difference between genuine and aftermarket engine coolant temperature sensors?
Answer: Genuine engine coolant temperature sensors, like the Mazda B593-18-840A, are specifically designed and manufactured to meet the original equipment specifications of Mazda vehicles. Aftermarket sensors might differ in quality, calibration, and longevity. While aftermarket options can be cost-effective, they may not provide the same level of performance or reliability. Choosing genuine parts can help maintain your vehicle's integrity and enhance overall performance, making them a preferred choice for many vehicle owners.
Mazda Coolant Temperature Editorial Review
The Genuine Mazda B593-18-840A Engine Coolant Temperature Sensor has garnered positive feedback from customers who have experienced significant improvements in their vehicle's performance following installation. Users noted that after replacing faulty sensors with this genuine part, they resolved issues such as faulty coolant gauge readings and engine warning lights. One customer highlighted that switching from a non-genuine sensor caused persistent problems, including the car cutting out, confirming the reliability of using original parts. Overall, the ease of installation and the immediate efficacy of the sensor have left users satisfied, with many reporting a return to normal function in their vehicles—specifically mentioning the resolution of error codes and improved readings on their dashboards. **
Customer Reviews & Ratings
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Pros
- Eliminates error codes (e.g., P2183) quickly.
- Restores functionality to vehicles that previously faced performance problems.
- Users have reported that the part works as expected, even if it appears simple.
Cons
- Some users noted that while it performs its function well, the sensor may not look particularly high-quality.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“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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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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FJD 126
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