MTC 122447 Crankcase Breather Hose 677355519237

( Brand: Mtc ), ( Manufacturer Part Number: 122447 ), ( Part Type: Breather Hose ), ( UPC: 677355519237 ), ( Features: 100 Accuracy Of Fit ), ( Caution: Fitment Is For North America Vehicles ), ( Material: Factory Specifications ), ( Universal Fitment: Direct Replacement ), ( Modified Item: No ), ( Oe/oem Part Number: 246-575-7-51-11 )

Review MTC Crankcase Breather Hose 2008 2014 Bmw fits X6 750LI 2009–2012

The **MTC 122447 Crankcase Breather Hose** is a precision-engineered aftermarket replacement designed specifically for BMW s luxury **X6 (E71) models** produced between **2008 and 2014**, including the **750Li variants** from **2009 to 2012**. This high-performance breather hose plays a critical role in maintaining optimal engine health by efficiently channeling blow-by gases resulting from combustion inefficiencies from the crankcase back into the intake system, where they are safely recirculated rather than expelled into the atmosphere. Crafted from **durable, oil-resistant synthetic rubber**, this hose is engineered to withstand the demanding conditions of high-performance engines, ensuring long-lasting reliability and resistance to cracking, swelling, or degradation from exposure to engine oils, heat, and vacuum fluctuations. The **tight-fitting, interference-free design** guarantees a secure connection to the engine s breather system, minimizing leaks and maintaining proper airflow while reducing the risk of oil contamination in the intake manifold a common issue that can lead to performance loss, rough idling, or even catastrophic engine damage over time. Ideal for both **restoration projects** and **routine maintenance**, this OEM-compatible replacement part adheres to BMW s exact specifications, ensuring a seamless fit with the **750i/750Li s** sophisticated turbocharged or naturally aspirated V8 engines. Whether addressing a failing original component or upgrading during a full engine bay refresh, the **MTC 122447** delivers the durability and precision needed to keep your BMW X6 running at peak efficiency, free from the headaches of oil leaks, carbon buildup, or inefficient breather function.

### Pros and Cons of buying a MTC 122447 Crankcase Breather Hose for a 2008 2014 BMW X6 (09 12, 750Li)

1. **OEM Quality and Fitment** The MTC part is designed to match the original equipment manufacturer (OEM) specifications for your BMW X6, ensuring a proper fit and function. This reduces the risk of leaks, improper sealing, or compatibility issues that can arise with aftermarket parts that are not specifically engineered for your vehicle.

2. **Reliability and Durability** MTC is a reputable brand known for producing high-quality automotive parts. Their crankcase breather hoses are typically made from durable materials that resist cracking, hardening, or degrading over time, especially under the heat and pressure conditions found in an engine bay.

3. **Prevents Engine Contamination** A faulty or clogged crankcase breather hose can allow blow-by gases (containing oil and combustion residues) to escape into the engine bay or intake system. This can lead to oil sludge buildup, reduced engine performance, or even damage to the intake manifold or turbocharger. A new, properly functioning hose helps maintain clean airflow and prevents these issues.

4. **Easy Installation** The hose is straightforward to install, requiring minimal tools and time. Most DIY mechanics or even those with basic automotive knowledge can replace it without professional assistance. The MTC part should come with clear instructions or fitment guides to simplify the process.

5. **Cost-Effective Maintenance** Replacing a worn-out crankcase breather hose is a relatively inexpensive preventive measure compared to the potential costs of repairing engine damage caused by neglected maintenance. It s a small investment that can extend the life of your engine and avoid costly repairs down the line.

6. **Compatibility with Aftermarket Upgrades** If you ve installed aftermarket components like a turbocharger, supercharger, or high-flow air intake, a high-quality breather hose like the MTC part ensures that these modifications function optimally without restrictions.

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1. **Price Compared to Generic Alternatives** While MTC offers a high-quality part, it may be more expensive than generic or no-name crankcase breather hoses available from other brands or online retailers. If budget is a concern, you might consider third-party options, though you should verify their compatibility and reviews before purchasing.

2. **Potential for Counterfeit Parts** There is a risk of purchasing a counterfeit MTC part, especially if buying from untrusted sellers (e.g., unverified online marketplaces or unauthorized dealers). Counterfeit parts may not meet the same quality standards, leading to premature failure or improper fitment. Always buy from authorized dealers or reputable sellers with return policies.

3. **Limited Availability** Depending on your location, the MTC 122447 part may not be as widely stocked as other brands. You might need to order it online, which could result in longer wait times for delivery compared to parts available locally at an auto parts store.

4. **Installation Challenges for Inexperienced Mechanics** While the installation is generally simple, some users may encounter difficulties if they are unfamiliar with working on BMW vehicles. For example, accessing the hose may require removing other components (like the air intake or plastic covers), and improper handling could damage surrounding parts.

5. **Overkill for Minor Wear** If the hose is only slightly worn or clogged but not yet failing, replacing it with a new MTC part might be seen as unnecessary by some owners. However, it s generally recommended to replace it as a preventive measure rather than waiting for it to fail completely.

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The MTC 122447 crankcase breather hose is an excellent choice for your 2008 2014 BMW X6 (750Li) due to its OEM-quality fitment, reliability, and role in preventing engine contamination. While it may cost more than generic alternatives, the long-term benefits such as improved engine health, extended component life, and peace of mind outweigh the drawbacks for most owners. The potential risks (e.g., counterfeit parts or installation difficulties) can be mitigated by purchasing from trusted sources and following installation guidelines carefully.

- **Buy the MTC 122447 part** if you prioritize quality, longevity, and compatibility with your BMW. Order it from an authorized dealer, BMW-approved parts supplier, or a well-reviewed online retailer (e.g., RockAuto, Amazon, or local BMW specialty shops) to avoid counterfeit products.

- **Replace it as part of routine maintenance**, especially if your vehicle has high mileage or you ve noticed signs of wear (e.g., cracks, hardening, or clogging).

- **Consider third-party options** only if you ve thoroughly researched the brand s reputation and verified compatibility. Avoid cheap, no-name parts unless you re certain they meet BMW s specifications.

- **Follow the installation instructions** closely, and don t hesitate to consult a professional if you re unsure about accessing or replacing the hose.

- **Pair this replacement with other preventive maintenance tasks**, such as checking the PCV valve and inspecting the intake system, to ensure your engine remains in optimal condition.

In summary, the MTC part is a strong recommendation for your BMW X6, offering a balance of quality, performance, and reliability.

Details:

Manufacturer Part Number: 122447. Tire Chains And Accessories. Material: Factory Specifications. Rotating Electrical.

CAUTION: Fitment is for North America vehicles. Timing Parts/Kits-Valve Train. Ignition and Filters. Features: 100% Accuracy of Fit.

Condition: New. Crankcase Breather Hose fits 2008 2014 BMW X6 09-12 750Li: MSRP: $45.59. Radiators And Cooling.

part #: 122447 prices

• $40.55-$51.99

specifications emissyste:

• for models: X6, 750li
• for makes: Bmw
• for years: 2009-2012
• brand: Mtc
• mpn: 122447
• part type: Breather Hose
• upc: 677355519237
• features: 100 Accuracy Of Fit
• caution: Fitment Is For North America Vehicles
• material: Factory Specifications
• universal fitment: Direct Replacement
• modified item: No
• oe/oem part number: 246-575-7-51-11

returns emissyste:

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

shipping emissyste:

• cost: $0.00
• class: Economy
• transit: 3-6 Days
• service: Economy
• type: Fixed

payments emissyste:

• credit card: Diners-club
• wallet: Google-pay
• other

seller emissyste:

• city: Portland, Oregon
• rating: 99.9%
• # reviews: 13835

offer emissyste:

• sold: 0
• quantity: 5
• started: April 19, 2026
• availability: In Stock
• options: Ship-to-home

general emissyste:

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

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