1. Engine Crankshafts Products
  2. sku: 19658724463591731
  3. MERCEDES 11JBTXQK

MERCEDES 11JBTXQK Febi Breather Hose Connector Crankcase Ventilation

fits make: Mercedes. year: 2003–2005.

11jbtxqk Febi Breather Hose Connector - Crankcase Ventilation Fits Mercedes Ml350 2003-2005

( Manufacturer Part Number: 11JBTXQK ), ( Part Type: Breather Hose ), ( Compatible Make/model: Mercedes Ml350 ), ( Compatible Years: 2004 2003 2005 04 03 05 ), ( Fitment Info: Breather Hose Connector Crankcase Ventilation ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review MERCEDES Febi Breather Hose Connector Crankcase Ventilation fits ML350 2003–2005

The **FEBi BILSTEIN 11JBTXQK crankcase ventilation hose connector** is a precision-engineered replacement part specifically designed to maintain optimal engine performance and longevity in Mercedes-Benz ML350 models produced between 2003 and 2005, particularly those equipped with the M113 V8 engine. This high-quality component serves as a critical link in the vehicle s crankcase ventilation system, ensuring proper pressure regulation within the engine bay by efficiently routing blow-by gases from the combustion chambers back into the intake manifold. Crafted from durable, heat-resistant materials, the FEBi connector is built to withstand the demanding conditions of high-performance driving, preventing oil leaks, reducing emissions, and minimizing the risk of harmful carbon buildup on intake valves a common issue in vehicles with aging or improperly functioning ventilation systems. The connector s robust design guarantees a secure, leak-free fit, maintaining factory-like performance while offering enhanced reliability compared to generic aftermarket alternatives. Whether used as an original equipment replacement during routine maintenance or as part of a comprehensive engine service, this FEBi part ensures seamless integration with the vehicle s existing components, delivering peace of mind for owners seeking long-term dependability and optimal engine health.

### **Pros and Cons of buying a Febi Breather Hose Connector (11JBTXQK) for a Mercedes ML350 (2003 2005)**

#### **Pros:**

1. **OEM Quality and Compatibility** Febi is a well-known aftermarket brand that produces parts designed to meet or exceed OEM specifications. The 11JBTXQK connector is specifically engineered for the 11J engine (used in the ML350), ensuring a proper fit and function.

2. **Prevents Engine Contamination** The crankcase ventilation system removes blow-by gases (oil vapors) from the engine, preventing them from entering the intake and causing oil dilution or carbon buildup. A faulty or missing connector can lead to poor engine performance or long-term damage.

3. **Easy Installation** The part is a straightforward replacement, typically requiring only basic tools. Most owners report that it can be installed in under an hour, especially if the engine bay is already open for other maintenance.

4. **Cost-Effective Solution** Compared to labor-intensive repairs (such as replacing the PCV system or dealing with oil leaks caused by improper ventilation), this is a relatively inexpensive fix. Prices are reasonable, and it avoids the need for professional installation in many cases.

5. **Prevents Future Issues** Addressing a failing breather system early can prevent more serious problems, such as:

- **Oil leaks** (from excessive pressure in the crankcase).

- **Intake valve fouling** (from oil vapors entering the combustion chamber).

- **Reduced engine efficiency** (due to restricted airflow in the ventilation system).

6. **Widely Available** Febi parts are stocked by many auto parts retailers (both online and in-store), making it easy to source without long waits.

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#### **Cons:**

1. **Potential for Counterfeit Parts** Since Febi is a reputable brand, there is a risk of purchasing fake or low-quality knockoffs, especially from untrusted sellers. Always verify the seller s reputation and check for authenticity markings.

2. **Mismatched Part Number Confusion** Some sellers may list incorrect part numbers or mix up similar connectors (e.g., for different engine variants or years). Double-check that **11JBTXQK** is the correct number for your 2003 2005 ML350 (11J engine).

3. **Additional System Checks Needed** While the connector itself is a simple fix, a failing breather system may indicate other underlying issues, such as:

- **Worn piston rings or valve seals** (causing excessive blow-by).

- **Clogged PCV valve** (if the system still has one).

- **Cracked or damaged hoses** (which may need replacement alongside the connector).

You may need to inspect the rest of the system to ensure long-term reliability.

4. **Installation Challenges** If the engine bay is cluttered or the hoses are stiff, removing the old connector might require some effort. Rust or corrosion could also make the process trickier, especially on older vehicles.

5. **Limited Lifespan of Related Components** Even with a new connector, other parts of the crankcase ventilation system (such as the PCV valve, hoses, or seals) may degrade over time. This could require future replacements.

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### **Conclusion**

The **Febi breather hose connector (11JBTXQK)** is a **reliable and cost-effective solution** for restoring proper crankcase ventilation in a 2003 2005 Mercedes ML350 (11J engine). It prevents engine contamination, avoids more expensive repairs, and is relatively easy to install. However, buyers should **verify the part number, source it from a trusted seller, and inspect the rest of the ventilation system** to ensure optimal performance.

If the issue persists after replacement (e.g., oil leaks or unusual noises), further diagnosis may be needed, as the problem could stem from deeper engine wear.

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### **Recommendation**

1. **Purchase from a reputable supplier** (e.g., RockAuto, Amazon with verified sellers, or a local Mercedes specialist) to avoid counterfeit parts.

2. **Confirm the correct part number (11JBTXQK)** matches your vehicle s engine variant.

3. **Inspect the entire breather system** (hoses, PCV valve, seals) while working on the connector replace any worn or damaged components.

4. **Follow installation instructions carefully** to avoid misrouting hoses or creating leaks.

5. **Monitor the engine for improvements** after installation. If symptoms (oil leaks, rough idle, etc.) persist, consult a mechanic to rule out internal engine issues.

**Final Verdict:** This is a **worthwhile upgrade** for maintaining engine health, provided the part is genuine and the system is properly serviced. It is a **preventative measure** rather than a cure for severe engine wear.

Details:

Febi Crankcase Breather Hose Connector fits Mercedes ML350 2003 - 2005 11JBTXQK: Brand: condition: New Detailed Applications Years: Vehicle: 2003 - 2005 Mercedes.

part #: 11jbtxqk price

  • $24.08

specifications cranshafengin:

  • for makes: Mercedes
  • for years: 2003-2005
  • mpn: 11jbtxqk
  • part type: Breather Hose
  • compatible make/model: Mercedes Ml350
  • compatible years: 2004 2003 2005 04 03 05
  • fitment info: Breather Hose Connector Crankcase Ventilation
  • manufacturer warranty: 12 Month Warranty
  • attention: Read Full Description To Confirm Fitment
  • cs-sku: 400

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  • cost: $0.00
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  • city: Whiteland, Indiana
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  • condition: New
  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

offer cranshafengin:

  • started: April 3, 2026
  • quantity: 1
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  • options: Ship-to-home
  • availability: In Stock
for makes: mercedes, for years: 2003-2005, part type: breather hose, compatible make/model: mercedes ml350, compatible years: 2004 2003 2005 04 03 05, fitment info: breather hose connector crankcase ventilation, manufacturer warranty: 12 month warranty, attention: read full description to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19658724463591731,
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