1. Engine Cooling Components Deals
  2. sku: 22084075282691723
  3. EQUIPMENT 39090

ORIGINAL EQUIPMENT 39090 Engine Coolant Temperature Sensor 190619745000

39090 Original Equipment Engine Coolant Temperature Sensor

( Brand: Original Equipment ), ( Manufacturer Part Number: 39090 ), ( Part Type: Engine Sensor ), ( Department: Replacement ), ( Product Type: Engine Cooling ), ( UPC: 190619745000 ), ( Universal Fitment: Direct Replacement ), ( Product Details: Engine Coolant Temperature Sensor ), ( Product Subtype: Cooling System Switches, Sensors Relays )

Review ORIGINAL EQUIPMENT Engine Coolant Temperature Sensor

The **39090 Engine Coolant Temperature Sensor** is a precision-engineered component designed to provide critical feedback for modern automotive cooling systems, ensuring optimal engine performance, efficiency, and longevity. This high-quality sensor, typically manufactured to meet or exceed OEM specifications, plays a pivotal role in monitoring the temperature of the engine coolant, allowing the vehicle s electronic control unit (ECU) to regulate fuel injection, ignition timing, and other vital functions in real time. Crafted from durable materials such as stainless steel or high-grade aluminum, the sensor features a robust threaded housing that ensures a secure and leak-proof connection to the engine block or cooling system, while its internal thermistor element delivers accurate temperature readings across a wide operational range typically spanning from -40 F to 257 F (-40 C to 125 C). The sensor s design incorporates a protective coating to prevent corrosion and contamination, making it ideal for use in demanding environments where exposure to moisture, oil, and extreme temperatures is common.

Functioning as a key part of the engine s feedback loop, the **39090 sensor** transmits real-time temperature data to the ECU via a two-wire electrical connection, enabling precise adjustments to the air-fuel mixture, throttle response, and emissions control systems. This ensures that the engine operates at peak efficiency while minimizing wear and tear, reducing the risk of overheating, and preventing potential damage to critical components such as the catalytic converter or turbocharger. Whether installed in high-performance vehicles, diesel engines, or everyday passenger cars, this sensor is engineered to deliver consistent and reliable performance, adhering to strict manufacturing tolerances to guarantee compatibility with a broad range of automotive applications.

For maintenance and replacement purposes, the **39090 Engine Coolant Temperature Sensor** is designed for straightforward installation, featuring a standard threaded interface that matches common engine coolant passages. Its compact yet sturdy construction allows for easy access during service procedures, while its compatibility with most aftermarket and OEM cooling systems ensures seamless integration without the need for additional modifications. Whether used as an original equipment replacement or an upgrade for enhanced durability, this sensor exemplifies the balance of precision engineering and practical reliability, making it an indispensable component for any vehicle requiring accurate temperature monitoring to maintain optimal engine health.

### **Pros and Cons of Buying a Replacement Engine Coolant Temperature Sensor (Part Number: 39090)**

#### **Pros:**

1. **Prevents Engine Damage** A faulty coolant temperature sensor can lead to incorrect readings, causing the engine to run too hot or too cold. Replacing it ensures proper temperature monitoring, reducing the risk of overheating, warped heads, or seized engines.

2. **Improves Fuel Efficiency** The sensor helps the engine control unit (ECU) optimize fuel injection and ignition timing. A malfunctioning sensor can result in poor fuel economy, and replacing it restores proper operation.

3. **Enhances Engine Performance** Accurate temperature readings allow the ECU to adjust throttle response, idle speed, and turbocharger operation (if applicable), leading to smoother and more efficient performance.

4. **Avoids Check Engine Light (CEL) Issues** A failing sensor often triggers a CEL due to error codes (e.g., P0115, P0116, P0117, P0118). Replacing it resolves the code and prevents unnecessary diagnostic trouble.

5. **Compatibility with Modern Diagnostics** Many newer vehicles rely on precise sensor data for emissions control and drivability. A new sensor ensures compatibility with OBD-II systems and aftermarket diagnostic tools.

6. **Prevents Long-Term Consequences** Ignoring a bad sensor can lead to more expensive repairs, such as radiator leaks, water pump failure, or even engine failure. Replacing it early is a cost-effective preventive measure.

7. **Easy Installation** Most sensors are plug-and-play replacements, requiring only basic tools. Many drivers or mechanics can install it without professional assistance.

8. **Warranty Coverage Potential** If the sensor fails due to manufacturer defect, some warranties (especially extended or powertrain warranties) may cover replacement costs.

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#### **Cons:**

1. **Cost of Replacement** While individual sensors are relatively inexpensive (typically $20 $100 for the part), labor costs (if professional installation is required) can add up, especially in high-labor-rate areas.

2. **Potential Counterfeit Parts** Purchasing from untrusted sellers may result in low-quality or incompatible sensors, leading to premature failure or incorrect readings.

3. **Misdiagnosis Risk** If the actual issue is elsewhere (e.g., a faulty thermostat, radiator, or water pump), replacing just the sensor may not fully resolve the problem, leading to repeated issues.

4. **Time-Consuming for DIYers** Locating the sensor (often hidden behind components like the intake manifold or turbocharger) and ensuring a proper seal can be challenging for those unfamiliar with engine work.

5. **Compatibility Issues** Some aftermarket sensors may not match the original equipment (OEM) specifications exactly, potentially causing intermittent problems or reduced accuracy.

6. **Secondary Problems May Arise** If the sensor was failing due to underlying issues (e.g., coolant leaks, electrical corrosion), these problems may persist and require additional repairs.

7. **Warranty Voiding (If Applicable)** In some cases, attempting a DIY replacement may void the vehicle s warranty, though this is rare if the sensor is clearly faulty.

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### **Conclusion**

Replacing a faulty engine coolant temperature sensor (part number 39090) is generally a **necessary and beneficial** repair for maintaining engine health, fuel efficiency, and drivability. The long-term benefits of preventing engine damage and avoiding costly repairs far outweigh the short-term inconvenience or cost. However, it s important to ensure the sensor is the actual cause of the issue (via diagnostic testing) and to source a high-quality replacement to avoid future problems.

### **Recommendation**

1. **Verify the Issue** Use an OBD-II scanner to confirm the sensor is the source of the problem (e.g., P0115/P0117 codes). If other components (e.g., thermostat, radiator) are suspect, address those first.

2. **Purchase from a Reputable Source** Buy the sensor from a trusted auto parts retailer (e.g., OEM, RockAuto, Amazon with verified sellers) to avoid counterfeit or low-quality parts.

3. **Consider Professional Installation** If the sensor is difficult to access or requires specialized tools (e.g., turbocharged engines), a mechanic may be worth the cost to ensure proper sealing and installation.

4. **Monitor Post-Installation** After replacement, watch for the check engine light returning or unusual engine behavior. If issues persist, further diagnostics may be needed.

5. **Maintain Coolant System** While replacing the sensor, consider flushing the coolant system to remove contaminants that may have contributed to the sensor s failure.

**Final Verdict:** **Proceed with replacement** if the sensor is confirmed faulty, as the risks of inaction (engine damage, poor performance) far exceed the costs and effort involved. Choose quality parts and proper installation to ensure long-term reliability.

Details:

Don't want to spend a fortune make your vehicle look and perform the way it was designed. Engineered to offer a perfect fit and trouble-free installation. So why not get OEM quality at an affordable price with Original Equipment Parts. They are manufactured from the finest materials according to strict OEM specifications, so they look, fit, and function exactly like parts dealer.

Then Original Equipment automotive parts are for you. No modifications required. Engine Coolant Temperature Sensor by Original Equipment. Features: Perfect replacement for your damaged or worn out original part.

They are very easy to install and offer exceptional wear tear resistance. Highly resistant to wear and tear, Original Equipment products are sure offer dependable operation for a long time. Proven to meet exact specifications of the original manufacturer. Be sure you won't spot any difference between these parts and genuine.

They will install easily and fit perfectly. Looking for high-quality replacement parts to restore the performance of your vehicle.

part #: 39090 price

  • $28.26

specifications ocoosys:

  • brand: Original Equipment
  • mpn: 39090
  • part type: Engine Sensor
  • department: Replacement
  • product type: Engine Cooling
  • upc: 190619745000
  • universal fitment: Direct Replacement
  • product details: Engine Coolant Temperature Sensor
  • product subtype: Cooling System Switches, Sensors Relays

returns ocoosys:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days

offer ocoosys:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 5
  • started: June 4, 2026

seller ocoosys:

  • # reviews: 13276
  • city: Shawnee, Kansas
  • rating: 95.7%

payments ocoosys:

  • wallet: Apple-pay
  • other
  • credit card: Diners-club

general ocoosys:

  • Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
  • condition: New

shipping ocoosys:

  • cost: $15.00
  • service: UPS Ground
  • transit: 2-6 Days
  • type: Fixed
  • carrier: UPS
  • class: Standard
part type: engine sensor, department: replacement, product type: engine cooling, universal fitment: direct replacement, product details: engine coolant temperature sensor, product subtype: cooling system switches, sensors relays,
category: auto parts > car truck parts accessories > engine cooling components, sku: 22084075282691723,
Original Equipment 39090 Is Similar To:
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1 offer $28.26 USD
  • New. Offer #1 priced at $28.26 + $15.00 shipping estimate = $43.26* total. They are very easy to install and offer exceptional wear and tear resistance. Engine Coolant Temperature Sensor by Original Equipment .+$15.00 shipping

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