DORMAN 904-726 Exhaust Gas Temperature Sensor

( Brand: Dorman ), ( Manufacturer Part Number: 904-726 ), ( Part Type: Exhaust Sensor ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review DORMAN Genuine Exhaust Gas Temperature Sensor

The **Dorman 904-726 Exhaust Gas Temperature Sensor** is a high-performance, direct-fit replacement designed to restore optimal engine efficiency and emissions compliance in a wide range of modern vehicles. Engineered to meet or exceed OEM specifications, this sensor is crafted from durable materials, including a robust stainless steel housing and a precision-machined thermocouple junction, ensuring long-lasting reliability even under the harshest operating conditions. Ideal for applications on turbocharged, diesel, and high-performance gasoline engines, this sensor plays a critical role in monitoring exhaust gas temperatures, helping the engine control module (ECM) maintain proper fuel delivery, turbocharger protection, and emissions control. Its robust construction resists corrosion and thermal stress, making it a dependable choice for both daily drivers and performance enthusiasts. The sensor features a threaded connection for secure installation, ensuring a tight seal to prevent leaks and maintain accurate temperature readings. Whether replacing a failed OEM sensor or upgrading an aging system, the Dorman 904-726 delivers consistent performance, helping to prevent costly engine damage while keeping emissions within regulatory limits. Backed by Dorman s reputation for quality and compatibility, this sensor is a trusted solution for mechanics and DIY enthusiasts alike.

### **Pros and Cons of buying a Dorman 904-726 Exhaust Gas Temperature Sensor**

1. **Compatibility** The Dorman 904-726 is a direct replacement for many OEM exhaust gas temperature (EGT) sensors, including those found in GM vehicles (e.g., 3.5L, 4.3L, 5.0L, and 5.7L V8 engines). It is designed to fit common applications like the **Chevy 350, 454, 502, and 700R4 transmissions**, as well as older GM trucks and SUVs.

2. **Quality Construction** Dorman is a well-known aftermarket brand that produces reliable, durable sensors. The 904-726 is built to withstand high temperatures and corrosive exhaust gases, reducing the risk of premature failure compared to cheaper generic alternatives.

3. **Easy Installation** The sensor is designed for straightforward replacement, often requiring only basic tools. It typically threads directly into the exhaust manifold or turbocharger housing, making it a DIY-friendly upgrade.

4. **Cost-Effective Alternative to OEM** While not as expensive as a brand-new OEM sensor, the Dorman 904-726 is significantly cheaper than purchasing an original equipment part, offering good value for performance and longevity.

5. **Widely Available** Dorman parts are stocked by most auto parts retailers (AutoZone, O Reilly, RockAuto, etc.), making it easy to purchase without long wait times.

6. **Improved Engine Protection** A properly functioning EGT sensor helps prevent engine damage by monitoring exhaust temperatures. A faulty sensor can lead to incorrect readings, potentially causing overheating or catalytic converter issues.

7. **Compatibility with Aftermarket Mods** If you have modified your engine (e.g., forced induction, turbocharging), a reliable EGT sensor ensures accurate data for tuning and performance monitoring.

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1. **Potential Fitment Issues** While the 904-726 fits many GM applications, there is always a chance of misalignment or incorrect threading, especially in older or heavily modified engines. Always verify fitment with your specific vehicle s application before purchasing.

2. **Quality Variability** Like all aftermarket parts, there is a risk of receiving a defective unit, particularly if purchased from a less reputable seller. Buying from a trusted retailer (e.g., RockAuto, Amazon, or a local auto parts store) reduces this risk.

3. **Limited Warranty** Dorman offers a standard warranty (typically 12 months or 12,000 miles), which may not be as comprehensive as an OEM warranty. If the sensor fails prematurely, you may incur additional costs for replacement.

4. **Compatibility with Modern Vehicles** Some newer vehicles (especially those with advanced emissions systems) may require OEM-level sensors for proper calibration. The 904-726 is best suited for older GM applications rather than modern trucks or performance builds with complex tuning requirements.

5. **Installation Challenges in Tight Spaces** Depending on your vehicle s design, accessing the EGT sensor location may require removing other components (e.g., exhaust headers, intake manifolds). If you re not comfortable with disassembly, professional installation may be necessary.

6. **Potential for Contamination** If the sensor is exposed to oil, coolant, or exhaust leaks before installation, it may fail prematurely. Always ensure the mounting area is clean and free of debris before threading in the new sensor.

7. **No Additional Features** Unlike some high-end sensors, the Dorman 904-726 does not include advanced diagnostics or wireless connectivity. It serves a basic monitoring function rather than providing detailed performance data.

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### **Conclusion**

The **Dorman 904-726 Exhaust Gas Temperature Sensor** is a solid, budget-friendly choice for replacing a faulty or worn-out OEM sensor in many GM applications. It offers reliable performance, ease of installation, and broad availability, making it a practical option for both DIY enthusiasts and professional mechanics. However, it is not a universal fit, and users should verify compatibility before purchasing. While it may not match the longevity of an OEM part, it provides a cost-effective solution for maintaining engine health and preventing costly damage from overheating or sensor failure.

For **older GM V8 engines (3.5L, 4.3L, 5.0L, 5.7L)**, this sensor is an excellent replacement. For **modern vehicles or high-performance builds**, consider an OEM or high-quality aftermarket sensor with better warranty coverage.

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### **Recommendation**

- You have a confirmed application match (GM V8 engines, 700R4 transmissions, etc.).

- You need a reliable, affordable replacement sensor.

- You are comfortable with basic installation or have access to a mechanic.

- You prioritize durability over advanced features.

- Your vehicle is a newer model with strict emissions requirements (may need OEM-level sensors).

- You require advanced diagnostics or wireless monitoring (higher-end sensors may be necessary).

- You suspect the sensor location is difficult to access (professional installation may be worth the extra cost).

**Final Verdict:** The Dorman 904-726 is a **strong, cost-effective choice** for its intended applications and is highly recommended for GM enthusiasts looking for a direct replacement sensor. Always cross-reference your vehicle s specifications before purchasing to ensure compatibility.

Details:

Genuine Dorman Exhaust Gas Temperature Sensor 904-726: Parts: EGT sensors frequently seize in the exhaust bung, making replacement difficult and damaging bung. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. EXHAUST GAS TEMPERATURE SENSOR, Exhaust, Temperature, Sensor, Exhausts, Temperatures, Sensors, Exhaust Gas Temperature Sensor.

This Dorman OE FIX solution directly replaces the sensor and comes with a bung repair kit just in case. Electrical parts are not returnable.

part #: 904726 prices

• $105.86-$118.81

specifications emissyste:

• brand: Dorman
• mpn: 904-726
• part type: Exhaust Sensor
• parts included: Only Part Reference 0 On The Diagram Is Included

shipping emissyste:

• type: Fixed
• service: Standard
• cost: $12.50
• class: Standard
• transit: 3-9 Days

payments emissyste:

• wallet: Paypal
• other
• credit card: Diners-club

seller emissyste:

• city: Dallas, Texas
• rating: 99.4%
• # reviews: 891

offer emissyste:

• started: March 4, 2026
• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home

returns emissyste:

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

general emissyste:

• Car Truck Parts Accessories > Exhaust Emission Systems > Other Exhaust Emission Parts
• condition: New

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