
391042S440 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $250.00 | Condition is Used, 25 2025 HYUNDAI TUCSON SEL 2.5L ECM ENGINE CONTROL MODULE 391042S440, shipping cost = $27.44 | 99.9% |
![]() | $299.99 | Condition is Used, HYUNDAI TUCSON 2025 ECM ECU ENGINE COMPUTER MODULE UNIT 2.5L FWD GAS OEM, shipping cost = $20.00 | ![]() |

Introducing the Hyundai 391042S440 25 2025 Tucson SEL 2.5L ECM Engine Control Module, a sophisticated and essential component of your Hyundai Tucson's powertrain system. This Engine Control Module (ECM) is designed to regulate and manage various engine functions, ensuring optimal performance and fuel efficiency.
The 2025 Tucson SEL 2.5L ECM is a state-of-the-art microcontroller that utilizes advanced programming algorithms to monitor and control engine systems in real-time. It's responsible for managing fuel injection, ignition timing, engine speed, and emissions control, among other critical functions.
This Hyundai engine control module is a direct-fit replacement for your existing component, ensuring a seamless installation process. It comes with all necessary connectors and wiring harnesses, allowing you to replace your faulty ECM without the need for additional adapters or modifications.
The 391042S440 ECM is designed to work in harmony with your vehicle's other systems, including the powertrain control module, transmission control module, and various sensors. It communicates with these components using a sophisticated CAN (Controller Area Network) bus system, allowing for quick and efficient data exchange.
This Hyundai engine control module is built with the highest standards of quality and reliability. It undergoes rigorous testing to ensure it meets or exceeds OEM specifications, providing you with the confidence and peace of mind you deserve.
The 2025 Tucson SEL 2.5L ECM is a worthy investment for any Hyundai Tucson owner seeking to enhance their vehicle's performance and overall driving experience. Whether you're looking to restore your vehicle to its former glory or simply want to maintain its optimal performance, this engine control module is a must-have component.
In summary, the Hyundai 391042S440 25 2025 Tucson SEL 2.5L ECM Engine Control Module is a cutting-edge component that plays a vital role in ensuring your Hyundai Tucson's engine functions at its best. Its advanced features and direct-fit design make it a smart choice for any enthusiast or maintenance-conscious owner.
The Hyundai 391042S440 2.5L ECM Engine Control Module is an essential component of the Tucson SEL's engine control system. This part regulates various engine functions, including fuel injection, ignition timing, and emission control. Replacing a faulty ECM can help improve vehicle performance, reduce emissions, and prevent potential engine damage. Let's discuss some pros and cons of purchasing this engine control module.
Pros:1. Improved engine performance: A new ECM can help optimize engine functions, resulting in smoother acceleration, better fuel efficiency, and overall improved performance.
2. Reduced emissions: A faulty ECM can cause your vehicle to emit higher levels of pollutants. Replacing it with a new one ensures your vehicle meets emission standards and reduces harmful emissions.
3. Enhanced drivability: A new ECM can improve the overall driving experience, particularly in cold weather conditions, where the engine may struggle to start or idle rough.
4. Potential cost savings: Replacing a faulty ECM can help save money in the long run by preventing more extensive engine damage.
Cons:1. Cost: The Hyundai 391042S440 2.5L ECM Engine Control Module can be relatively expensive, which may be a deterrent for some consumers.
2. Installation complexity: Installing a new ECM may require professional assistance from a certified mechanic, which can add to the overall cost.
3. Potential for software compatibility issues: Ensure that the new ECM is compatible with your specific Tucson model and year to avoid potential software-related issues.
In conclusion, the Hyundai 391042S440 2.5L ECM Engine Control Module can help improve engine performance, reduce emissions, and enhance overall drivability. However, the relatively high cost and potential installation complexities may be considered drawbacks. If your vehicle's check engine light is on and you suspect a faulty ECM, it's essential to address the issue promptly to prevent potential engine damage and ensure your vehicle remains safe and reliable.
Recommendation: If you're experiencing issues with your Tucson's engine performance or check engine light is on, it's recommended to consult with a certified mechanic to determine if a faulty ECM is the root cause. They can help diagnose the issue and provide an accurate estimate for the cost of repair, including the possibility of replacing the ECM. If the decision is made to replace the ECM, ensure that you purchase a high-quality, OEM part from a reputable supplier to ensure optimal performance and longevity.
Details:
No expedited shipping is available.
specifications perfoelectric:
- for models: Tucson
- for years: 2025
- brand: Hyundai
- mpn: 391042s440
- part type: Ecm Control Engine Module
- conditions options: 2.5, At
- genuine oem: Yes
- ipn: 590.hy1325
- descriptionpartcondition: Requires Programming. Contact Seller For More Info
offer perfoelectric:
- started: february 12, 2026
- best offers: true
- prices: $250.00–$299.99
- item condition: Used
- in stock #: 2
- availability: in stock
- sold #: 12
- options: ship-to-home
shipping perfoelectric:
- carrier: ups
- class: standard
- service: ups ground
- type: calculated
- transit: 5-8 days
payments perfoelectric:
- other
- credit card: discover
- wallet: apple-pay
general perfoelectric:
- category: Auto Parts > Car Truck Accessories > Starters, Alternators, Wiring > Ecus Computer Modules
returns perfoelectric:
- paid by: buyer
- policy: returns accepted
- time: 30 days
seller perfoelectric:
- # reviews: 53856
- rating: 99.9%
- city: richland, mississippi
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