MERCEDES 000-905-40-09 Exhaust Gas Temperature Egt Sensor Benz

( Manufacturer Part Number: 000-905-40-09 ), ( Part Type: Exhaust Sensor ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Parts Included: Only Part Reference 4 On The Diagram Is Included ), ( Replaces Part Number: 9051206, 9053101, 9059207 )

Review MERCEDES benz Genuine Exhaust Gas Temperature Egt Sensor

The **Mercedes-Benz 000-905-40-09 Exhaust Gas Temperature (EGT) Sensor** is a precision-engineered component designed to monitor the temperature of exhaust gases within the vehicle s emissions control system, ensuring optimal performance, compliance with stringent environmental regulations, and protection of critical after-treatment devices such as the Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) system. This high-quality sensor is a critical part of the engine management system, providing real-time feedback to the vehicle s Electronic Control Unit (ECU) to regulate exhaust flow, prevent thermal damage, and maintain efficient emissions processing. Crafted to Mercedes-Benz s exacting standards, this sensor features a robust stainless-steel housing and a durable thermocouple junction, capable of withstanding extreme temperatures typically ranging from -40 C to over 1,000 C while delivering accurate and reliable readings even under the most demanding driving conditions. The 000-905-40-09 is specifically designed for compatibility with a range of Mercedes-Benz diesel models, including those equipped with OM646, OM654, OM651, and OM642 engines, ensuring seamless integration with the vehicle s diagnostic and control systems. Its advanced construction minimizes signal noise and maximizes durability, reducing the risk of premature failure and costly repairs. Whether installed in a high-performance luxury sedan, a robust SUV, or a commercial-grade van, this EGT sensor plays a pivotal role in maintaining the vehicle s efficiency, longevity, and adherence to emissions standards, making it an indispensable component for both original equipment and aftermarket applications.

### **Pros and Cons of buying a Mercedes-Benz 000-905-40-09 Exhaust Gas Temperature (EGT) Sensor**

1. **OEM Quality** This is a genuine Mercedes-Benz part, meaning it meets the manufacturer s exact specifications for fit, performance, and durability. OEM components are designed to integrate seamlessly with the vehicle s systems, reducing the risk of compatibility issues.

2. **Reliability and Longevity** Mercedes-Benz sensors are built to last, often outperforming aftermarket alternatives in terms of longevity, especially in high-performance or turbocharged engines where EGT sensors are critical for proper function.

3. **Warranty Coverage** Purchasing directly from an authorized dealer or a reputable supplier may include a warranty, providing peace of mind against premature failure or defects.

4. **Accurate Readings** A high-quality EGT sensor ensures precise temperature monitoring, which is essential for engine management, emissions control, and preventing damage from overheating or turbo failure.

5. **Compatibility with Diagnostic Systems** Since it s an OEM part, it will work correctly with the vehicle s onboard diagnostics (OBD-II) and Mercedes-Benz diagnostic tools, avoiding false error codes or calibration issues.

6. **Resale Value Preservation** Using genuine parts helps maintain the vehicle s value, especially if it s being sold or serviced under warranty.

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1. **Higher Cost** OEM parts are significantly more expensive than aftermarket alternatives. The 000-905-40-09 EGT sensor will likely cost more than a third-party equivalent, which could be a financial drawback for budget-conscious buyers.

2. **Limited Availability** Depending on the region or supplier, genuine Mercedes-Benz parts may not always be in stock, leading to potential delays in replacement.

3. **Potential Overkill for Minor Issues** If the sensor failure is due to a minor issue (e.g., a loose connection or minor contamination), replacing it with an OEM part may be unnecessary if an aftermarket sensor could suffice.

4. **Installation Complexity** Some EGT sensors require careful installation, especially in tight engine bays or near turbochargers. Improper installation could lead to leaks or damage, though this applies to both OEM and aftermarket parts.

5. **Environmental Stress** EGT sensors are exposed to extreme heat, exhaust gases, and vibrations. Even OEM sensors can fail prematurely if the vehicle is driven aggressively or maintained poorly.

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The **Mercedes-Benz 000-905-40-09 EGT sensor** is a high-quality, reliable choice for owners who prioritize authenticity, long-term performance, and compatibility with their vehicle s systems. While it comes at a premium price, the benefits in terms of accuracy, durability, and warranty support make it a strong option for those who want the best possible fit for their Mercedes-Benz.

However, if cost is a major concern and the vehicle s condition allows for it, an **aftermarket EGT sensor from a reputable brand** (such as Bosch, NGK, or AEM) could be a viable alternative. These parts often provide similar performance at a fraction of the cost, though they may lack the same warranty and long-term guarantees as OEM components.

- You want the most reliable and long-lasting solution.

- The vehicle is under warranty or you plan to keep it for many years.

- You value seamless integration with the car s diagnostic systems.

- You re willing to pay the premium for genuine Mercedes-Benz quality.

- Budget is a significant factor, and you ve verified the aftermarket sensor meets Mercedes-Benz specifications.

- The sensor failure is isolated and not part of a broader engine issue.

- You re comfortable with third-party brands and can source one with good reviews.

For most Mercedes-Benz owners, the **OEM sensor is the safest and most practical choice**, especially for turbocharged or high-performance models where EGT accuracy is critical. Always ensure the part is new and from an authorized source to avoid counterfeit or reused components.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Electrical parts are not returnable. Parts must be resealable and in the original packaging.

part #: 0009054009 prices

• $104.14-$115.60

specifications emissyste:

• for makes: Mercedes
• mpn: 000-905-40-09
• part type: Exhaust Sensor
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• parts included: Only Part Reference 4 On The Diagram Is Included
• replaces part number: 9051206, 9053101, 9059207

offer emissyste:

• availability: In Stock
• quantity: 1
• started: May 8, 2026
• sold: 0
• options: Ship-to-home

general emissyste:

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

payments emissyste:

• credit card: Discover
• wallet: Google-pay
• other

shipping emissyste:

• class: Standard, One-day
• carrier: FedEx
• cost: $14.00
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery, Overnight
• transit: 3-6 Days

seller emissyste:

• rating: 99.2%
• city: Farmington, Utah
• # reviews: 1375

returns emissyste:

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

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