ISUMO CAX255 Intake Air Temperature Sensor 5149279AB

( Brand: Isumo ), ( Manufacturer Part Number: CAX255 ), ( Part Type: Intake Sensor ), ( Manufacturer Warranty: Yes ), ( Oe/oem Part Number: 5149279ab, 5149279ac ), ( Universal Fitment: No ), ( California Prop 65 Warning: Warning )

Review ISUMO Intake Air Temperature Sensor Chrysler Dodge Jeep fits RAM 2011–2023

The **Isumo CAX255 Intake Air Temperature (IAT) Sensor** is a high-performance, direct-fit replacement designed to restore optimal engine efficiency and reliability in Chrysler, Dodge, Jeep, and Ram vehicles spanning the model years 2011 through 2023. Engineered with precision to meet or exceed OEM specifications, this sensor is a critical component in the vehicle s engine management system, responsible for monitoring the temperature of the air entering the intake manifold. By providing accurate real-time data to the engine control unit (ECU), the IAT sensor ensures precise fuel delivery, ignition timing, and overall engine performance, particularly during cold starts, warm-ups, and varying operating conditions. Constructed from durable materials, including a robust metal housing and a high-quality thermistor element, this sensor is built to withstand the demanding environments of modern powertrains, including those equipped with turbocharging or direct injection systems. Its compact yet robust design ensures a seamless fit, eliminating the need for modifications or additional tools during installation. Whether replacing a failing OEM sensor or upgrading to enhance engine responsiveness, the Isumo CAX255 delivers consistent and reliable temperature readings, helping to maintain optimal air-fuel ratios, reduce emissions, and prevent potential drivability issues. Ideal for mechanics, DIY enthusiasts, and fleet operators seeking a cost-effective yet high-quality solution, this sensor combines performance, durability, and compatibility to keep your vehicle running at its best.

### Pros and Cons of Buying an Isumo CAX255 Intake Air Temperature (IAT) Sensor for Chrysler, Dodge, Jeep, and Ram Vehicles (2011 2023)

#### **Pros**

1. **Direct OEM Replacement** The Isumo CAX255 is designed as a direct-fit replacement for the original equipment sensor in your vehicle, ensuring compatibility without modifications. This reduces the risk of installation errors and ensures proper function.

2. **High-Quality Materials** Isumo is known for manufacturing sensors with durable construction, including corrosion-resistant coatings and precise temperature sensing elements. This helps prevent premature failure, especially in environments with moisture or road salt.

3. **Accurate Readings** A properly functioning IAT sensor ensures accurate intake air temperature data, which is critical for the engine control module (ECM) to calculate the correct air-fuel ratio. This improves fuel efficiency, engine performance, and emissions compliance.

4. **Easy Installation** The sensor is designed for straightforward replacement, often requiring only basic tools. Many users report that it can be swapped out in under an hour, depending on vehicle access.

5. **Warranty Coverage** Isumo typically offers a warranty (often 1 2 years) on their sensors, providing peace of mind against defects or premature failure.

6. **Compatibility with Aftermarket Tuning** If you plan to modify your vehicle (e.g., forced induction, exhaust upgrades), a reliable IAT sensor ensures the ECM receives accurate data, which is essential for proper tuning and performance optimization.

7. **Prevents Check Engine Light (CEL) Issues** A failing IAT sensor can trigger a CEL due to incorrect sensor readings. Replacing it with a high-quality unit like the Isumo CAX255 can resolve this issue and prevent further diagnostic trouble codes (DTCs).

8. **Cost-Effective Long-Term Solution** While the upfront cost may seem higher than a generic sensor, the durability and reliability of Isumo sensors often make them a cost-effective choice over time, reducing the likelihood of repeated replacements.

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#### **Cons**

1. **Higher Upfront Cost** Compared to generic or no-name sensors, the Isumo CAX255 is priced higher. While this reflects better quality, it may not be the most budget-friendly option for those on a tight budget.

2. **Potential Overkill for Basic Repairs** If your vehicle has minor issues unrelated to the IAT sensor (e.g., vacuum leaks, faulty oxygen sensors), replacing just the IAT sensor may not fully resolve the problem. A thorough diagnostic check is recommended before purchase.

3. **Installation Challenges in Some Vehicles** Depending on your vehicle s engine bay layout (especially in older or compact models), accessing and replacing the IAT sensor can be tricky. Some users may need to remove additional components (e.g., air intake hoses, plastic covers) to reach the sensor.

4. **Compatibility Verification Required** While Isumo markets this sensor for a wide range of Chrysler, Dodge, Jeep, and Ram models (2011 2023), it s crucial to double-check your exact vehicle s specifications (year, engine type, trim) to ensure a perfect fit. Mismatches could lead to installation difficulties or poor performance.

5. **Limited Availability in Some Regions** Depending on where you purchase the sensor, stock availability may vary. Online retailers (Amazon, RockAuto, IATSensors.com) are more likely to carry it than local auto parts stores.

6. **Potential for Counterfeit Products** If buying from third-party sellers (especially on eBay or Amazon), there is a risk of receiving a counterfeit or low-quality knockoff. Always purchase from reputable dealers or authorized distributors to avoid this.

7. **No Guarantee Against Environmental Damage** While the sensor is durable, extreme conditions (e.g., prolonged exposure to oil leaks, extreme temperatures, or road debris) can still damage it over time. Regular maintenance and inspection are recommended.

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### **Conclusion**

The Isumo CAX255 Intake Air Temperature sensor is a **highly recommended choice** for Chrysler, Dodge, Jeep, and Ram vehicles from 2011 to 2023, particularly if you prioritize reliability, accuracy, and long-term performance. Its OEM-level quality, durability, and compatibility make it a superior option over many generic alternatives. However, it is not without drawbacks, such as the higher cost and potential installation challenges in certain vehicles.

For most drivers experiencing IAT sensor issues whether indicated by a check engine light, poor fuel economy, or rough idle the Isumo CAX255 offers a **strong balance of quality and performance**. If budget is a concern, it may be worth comparing it to other reputable brands (e.g., ACDelco, Bosch, or Mopar OEM) to ensure you re getting the best value.

### **Recommendation**

- You need a direct OEM replacement with proven reliability.

- Your vehicle s IAT sensor is confirmed faulty (via diagnostic scan).

- You plan to perform tuning or modifications that require accurate sensor data.

- You want a sensor with a good warranty and long-term durability.

- You re on a tight budget and can find a high-quality generic sensor (e.g., from ACDelco or Bosch) at a lower price.

- Your vehicle has complex installation requirements that may not justify the higher cost.

- You suspect other underlying issues (e.g., vacuum leaks, MAF sensor problems) that need addressing first.

**Final Verdict:** For most applications, the Isumo CAX255 is the **best choice** for replacing a faulty IAT sensor in your 2011 2023 Chrysler, Dodge, Jeep, or Ram vehicle. Purchase from an authorized dealer to avoid counterfeit products, and verify compatibility with your exact vehicle specifications before buying.

Details:

CHRYSLER 300 2011 -2023, DODGE CHALLENGER CHARGER DART 2013 -2016, DURANGO 2012 -2023, JEEP CHEROKEE 2014 -2023, COMPASS 2017 - 2022, GRAND 2012 - 2021, L 2021 -2023, WAGONEER 2022 -2023, RENEGADE 2015 - 2021, WRANGLER 2018 -2023, RAM 1500 CLASSIC 2019 -2023, 2500 2013 -2023, 3500 4500 2014 - 2022, 5500 PROMASTER CITY 2015 - 2022. ISUMO connectors and wiring harnesses are designed to replace worn, damaged, or corroded electrical connections. Fits: CHRYSLER 200 2015 - 2017. Designed to meet or exceed OE specifications Deliver reliable performance and long life for domestic, import, specialty applications Provides worry-free electrical Intake Air Temperature Sensor.

part #: cax255 prices

• $16.00-$16.50

specifications ocoosys:

• for models: Ram
• for makes: Chrysler, Dodge, Jeep
• for years: 2011-2023
• brand: Isumo
• mpn: Cax255
• part type: Intake Sensor
• manufacturer warranty: Yes
• oe/oem part number: 5149279ab, 5149279ac
• universal fitment: No
• california prop 65 warning: Warning

returns ocoosys:

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

shipping ocoosys:

• cost: $0.00
• service: Standard, Expedited, Overnight
• class: Standard, Expedited, One-day
• transit: 3-8 Days
• type: Fixed

offer ocoosys:

• started: May 20, 2026
• sold: 0
• best offers: True
• options: Ship-to-home
• availability: In Stock

seller ocoosys:

• # reviews: 196418
• city: El Monte, California
• rating: 99.5%

general ocoosys:

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

payments ocoosys:

• credit card: Mastercard
• other
• wallet: Apple-pay

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