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  3. MERCEDES 2720701495

MERCEDES 2720701495 Fuel Injector Rail 060708091011 Benz S400

fits model: W221, C350, E350, R350. make: Mercedes. year: 2006–2011.

2720701495 Mercedes-benz 06-11 W221 S400 C350 E350 R350 Fuel Injector Rail With Injectors Oem

( Manufacturer Part Number: 2720701495 ), ( Type: Fuel Rail ), ( Oe/oem Part Number: A2720701495, A2720701795, A2720701395, A2720780023 ), ( Manufacturer Warranty: 3 Months ), ( Universal Fitment: No ), ( Country Of Origin: Germany ), ( Fuel Type: Gasoline ), ( UPC: 060708091011 )

Review MERCEDES benz Fuel Injector Rail Injectors Oem fits W221 C350 E350 R350 2006–2011

The **Mercedes-Benz 2720701495 fuel injector rail injectors** for the **W221 S-Class (2006 2011) models**, including the **S400, C350, E350, and R350**, represent a critical component in the high-performance, emissions-compliant direct-injection systems that define these luxury sedans. These precision-engineered injectors are designed to deliver an exact, atomized spray of fuel directly into the combustion chamber, ensuring optimal combustion efficiency, power output, and compliance with stringent Euro 4 and Euro 5 emissions standards. Crafted from high-grade materials, including durable stainless steel and corrosion-resistant coatings, these injectors are built to withstand the extreme pressures (up to **2,000 bar or higher**) and temperatures generated by the advanced **OM646 DE22** (for the S400) and **M272 DE30** (for the C350/E350/R350) diesel engines, which feature **common-rail direct injection (CDI)** technology. Each injector is equipped with a **piezoelectric actuator**, allowing for rapid, precise fuel delivery with minimal lag, which is essential for maintaining smooth power delivery and reducing particulate emissions. The **OEM-quality rail assembly** ensures seamless integration with the engine s fuel management system, including the **ECU (Engine Control Unit)**, which dynamically adjusts injection timing, duration, and pressure based on real-time engine conditions such as load, RPM, and exhaust gas recirculation (EGR) demands. These injectors are engineered to support **turbocharged** operation, where the **VGT (Variable Geometry Turbocharger)** enhances low-end torque, and the **EGR system** helps regulate emissions all while the injectors maintain consistent performance under varying operating conditions. Whether restoring a high-mileage W221 to factory specifications or upgrading an aftermarket performance build, these **genuine Mercedes-Benz part number 2720701495** injectors provide the reliability and precision needed to replicate or exceed the original engine s efficiency and power potential. Proper installation, including calibration and potential ECU reprogramming, is recommended to ensure optimal performance and longevity, as these injectors are designed to work in tandem with the engine s fuel rail, high-pressure pump, and fuel filter system for peak operation.

### **Pros and Cons of Buying Mercedes-Benz W221 S-Class (2720701495, 2006-2011) Fuel Injector Rail Injectors**

#### **Pros:**

1. **Performance Improvement** New or high-quality aftermarket rail injectors can restore or enhance fuel delivery, improving throttle response, power, and overall engine efficiency. This is particularly beneficial in older W221 models where injectors may degrade over time, leading to rough idling or power loss.

2. **Reliability and Longevity** Worn or failing injectors can cause misfires, poor fuel atomization, and increased carbon buildup. Replacing them prevents further damage to the engine, fuel system, or catalytic converter, extending the vehicle s lifespan.

3. **Better Fuel Economy** Properly functioning injectors ensure optimal fuel delivery, which can improve mileage compared to clogged or leaking original injectors.

4. **Compatibility with Modifications** If you plan to modify the engine (e.g., turbocharging, tuning, or upgrading to higher octane fuel), new injectors are often necessary to handle increased fuel demands without causing fueling issues.

5. **Prevents Costly Repairs** Ignoring injector problems can lead to more severe issues like failed catalytic converters, engine misfires, or even engine damage. Addressing them early is more cost-effective than dealing with downstream failures.

6. **Potential for Increased Resale Value** A well-maintained W221 with updated components (like fresh injectors) can appeal to buyers looking for a reliable, high-performance luxury sedan.

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#### **Cons:**

1. **Cost** High-quality OEM or aftermarket rail injectors for the W221 can be expensive, especially if sourced from reputable brands (e.g., Delphi, Siemens, or specialized Mercedes injectors). Labor costs for installation (if not DIY) can also add up.

2. **Installation Complexity** The W221 s fuel rail system is intricate, and improper installation can lead to leaks, electrical issues, or even fuel system contamination. This may require professional installation or careful DIY work.

3. **Compatibility Risks** Not all injectors are drop-in replacements. Some may require matching flow rates, electrical connectors, or software adjustments (e.g., for tuning). Using incompatible injectors can cause fueling problems or damage the engine control unit (ECU).

4. **Potential for Counterfeit Parts** Cheap aftermarket injectors may not meet Mercedes specifications, leading to premature failure or poor performance. Always source from trusted suppliers.

5. **Tuning May Be Required** Upgrading injectors often necessitates a tune to adjust fuel maps, especially if increasing power or fueling capacity. This adds to the cost and complexity.

6. **Warranty and Return Risks** If purchasing used injectors or from a less reputable seller, there s a risk of receiving faulty or mismatched parts. OEM injectors may come with limited warranties, while aftermarket options vary.

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### **Conclusion:**

Replacing the fuel injector rail injectors in a **Mercedes-Benz W221 (2006-2011) S-Class** is a **highly recommended maintenance or upgrade** if the original injectors are failing or degraded. The benefits improved performance, reliability, and prevention of costly damage outweigh the drawbacks, provided you invest in **quality parts and proper installation**. However, the upfront cost and technical complexity mean it s not a trivial fix, and DIYers should be prepared for potential challenges.

For **best results**, opt for **OEM or high-quality aftermarket injectors** (e.g., Delphi, Siemens, or specialized Mercedes injectors) and consider professional installation if unsure. If modifying the engine, pair the injector upgrade with a **tune** to ensure optimal performance.

### **Recommendation:**

- **If symptoms of injector failure exist** (e.g., rough idling, power loss, check engine lights for injector-related codes), **replace the injectors as soon as possible** to avoid further damage.

- **Prioritize quality** avoid no-name injectors and stick to reputable brands.

- **Budget for installation** if not comfortable with DIY, factor in labor costs.

- **Consider a tune** if upgrading injectors for performance gains.

- **Document the work** this can help with resale value and future diagnostics.

For most W221 owners, this upgrade is a **worthwhile investment** in the long-term health and performance of the vehicle.

Details:

part #: 2720701495 prices

  • $79.99-$82.12

specifications carfuelinjector:

  • for models: W221, C350, E350, R350
  • for makes: Mercedes
  • for years: 2006-2011
  • mpn: 2720701495
  • type: Fuel Rail
  • oe/oem part number: A2720701495, A2720701795, A2720701395, A2720780023
  • manufacturer warranty: 3 Months
  • universal fitment: No
  • country of origin: Germany
  • fuel type: Gasoline
  • upc: 060708091011

seller carfuelinjector:

  • city: Pleasant Grove, California
  • # reviews: 4365
  • rating: 99.1%

returns carfuelinjector:

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

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  • wallet: Apple-pay

offer carfuelinjector:

  • started: February 11, 2026
  • best offers: True
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home
  • sold: 0

general carfuelinjector:

  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
  • condition: Used

shipping carfuelinjector:

  • cost: $15.00
  • transit: 3-8 Days
  • carrier: FedEx
  • service: FedEx Ground / FedEx Home Delivery
  • type: Fixed
  • class: Standard
for models: w221, c350, e350, r350, for makes: mercedes, for years: 2006-2011, type: fuel rail, oe/oem part number: a2720701495, a2720701795, a2720701395, a2720780023, manufacturer warranty: 3 months, universal fitment: no, country of origin: germany, fuel type: gasoline,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 14654114704375762,
Mercedes 2720701495 Is Similar To:
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5 offers $79.99–$82.12 USD
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