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  3. REIN SX-T6K7

REIN SX-T6K7 Crankcase Breather Hose Engine Kit 3.0L L6

fits model: 330ci. make: Bmw. year: 2001–2006.

Sx-t6k7 Rein Crankcase Breather Hose Kit For 2001-2006 Bmw 330ci 3.0l L6 Engine Qq

( Brand: Rein ), ( Manufacturer Part Number: SX-T6K7 ), ( Ipn: C537 81-50 ), ( Placement On Vehicle: Emission Control Crankcase Ventilation System ), ( Compatible Year: 2006 2005 2004 2003 2002 2001 ), ( Core Charge: Free No Core Charge ), ( Type: Engine Crankcase Breather Hose Kit ), ( Universal Fitment: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Rein Engine Crankcase Breather Hose Kit )

Review REIN Crankcase Breather Hose Kit Bmw 3.0l L6 Engine fits 330CI 2001–2006

The **Rein SX-T6K7 Crankcase Breather Hose Kit** is a meticulously engineered aftermarket solution designed specifically for BMW s 3.0L inline-six engines found in the **2001 2006 330Ci models**, ensuring optimal performance, longevity, and emissions compliance. Engineered from high-quality **reinforced silicone and durable rubber compounds**, this kit replaces the factory crankcase breather system with a more robust, leak-proof alternative that withstands the demanding conditions of high-performance driving, aggressive throttle inputs, and extended use. Unlike the original equipment components, which can degrade over time due to oil and coolant exposure, the Rein SX-T6K7 features **tight-sealing fittings and reinforced hoses** that prevent oil leaks, vacuum loss, and carbon buildup common issues that plague older BMW engines. The kit includes **precision-molded hoses** that maintain consistent airflow while filtering out contaminants, reducing the risk of sludge formation and engine wear. Its **universal compatibility** with the N52 and N54 engine architectures (via optional adapters) further enhances its value, making it a versatile upgrade for enthusiasts looking to restore factory reliability or enhance their engine s breathing efficiency. Whether installed as part of a routine maintenance refresh or as a proactive measure to extend engine life, the Rein SX-T6K7 delivers a seamless, hassle-free solution that restores confidence in your BMW s performance while maintaining its original character.

The **Rein SX-T6K7 Crankcase Breather Hose Kit** is a popular aftermarket solution for BMW 330i (E90/E92/E93) models with the 3.0L L6 engine, particularly those experiencing crankcase pressure issues, oil leaks, or valve cover gasket failures. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Rein SX-T6K7 Kit**

1. **Improved Crankcase Pressure Control**

The kit replaces the stock breather system with a more efficient design that better regulates crankcase pressure. This reduces the risk of oil leaks from the valve cover gasket, PCV valve, or oil filter housing gasket. Many owners report fewer oil leaks after installation, especially in high-mileage or modified engines where stock components may be worn.

2. **Reduced Oil Consumption**

By maintaining proper crankcase pressure, the kit helps minimize oil consumption, which is a common issue in the 3.0L L6 engine. This is particularly beneficial for engines that burn oil excessively, often due to worn valve cover gaskets or a failing PCV system.

3. **Compatibility and Fitment**

The Rein SX-T6K7 kit is specifically designed for the 3.0L L6 engine (N54 is not compatible) and fits the E90, E92, and E93 body styles from 2001 2006. It includes all necessary hoses, clamps, and mounting hardware, making installation straightforward for those with basic mechanical skills. The kit also works well with aftermarket oil catch cans, which can further improve engine longevity.

4. **Durability and Material Quality**

Rein is known for using high-quality materials, including reinforced silicone or rubber hoses that resist cracking and degradation over time. The kit is designed to withstand the heat and pressure of the crankcase, reducing the likelihood of premature failure.

5. **Easy Installation**

Unlike some high-performance breather systems that require extensive modifications, the Rein SX-T6K7 kit is designed for relative ease of installation. It can typically be fitted in a few hours with standard tools, though some owners may need to replace additional components (e.g., the PCV valve) for optimal performance.

6. **Positive User Feedback**

Many BMW owners, particularly those with high-mileage or modified engines, report significant improvements in oil leaks and pressure regulation after installing this kit. Online forums and reviews frequently highlight its effectiveness in preventing valve cover gasket failures and reducing oil consumption.

7. **Supports Oil Catch Can Systems**

The Rein kit is often used in conjunction with oil catch cans, which further protect the engine from oil leaks and sludge buildup. The kit s design allows for easy integration with aftermarket catch can systems.

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### **Cons of the Rein SX-T6K7 Kit**

1. **Not a Complete Fix for All Oil Leaks**

While the kit improves crankcase pressure, it does not address underlying issues such as a failing valve cover gasket, oil filter housing gasket, or oil pan gasket. If these components are already compromised, the kit may only provide temporary relief. Owners should inspect and replace worn gaskets or seals as needed.

2. **Potential for Improper Installation**

If not installed correctly, the kit could lead to air leaks or improper pressure regulation, negating its benefits. For example, failing to properly seal hoses or clamps could result in oil leaks or a loss of vacuum assistance. Careful attention to installation details is required.

3. **Limited Performance Gains for Stock Engines**

For stock engines running without modifications, the Rein kit may not offer dramatic performance improvements. Its primary benefit lies in reliability and oil leak prevention rather than power gains. However, it can still be valuable for maintaining engine health.

4. **Cost Relative to Stock Components**

The Rein kit is more expensive than replacing just the stock breather hoses or PCV valve. However, it is often more cost-effective than dealing with repeated valve cover gasket failures or oil leaks over time. The typical price ranges between $50 $100, depending on the retailer.

5. **Compatibility with Aftermarket Mods**

While the kit works well with oil catch cans, some high-performance modifications (e.g., forced induction) may require additional tuning or adjustments to ensure the breather system functions optimally under increased stress. Consulting with a BMW specialist may be advisable for heavily modified engines.

6. **Potential for Hose Wear Over Time**

Although Rein hoses are durable, they are not indestructible. In high-mileage or aggressive driving conditions, the hoses may eventually crack or degrade, requiring replacement. Regular inspection is recommended.

7. **Mixed Reviews on Long-Term Reliability**

While many users report excellent results, some owners have experienced issues with the kit failing prematurely or not addressing all leaks. This variability underscores the importance of proper installation and complementary maintenance (e.g., replacing gaskets).

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### **Conclusion**

The **Rein SX-T6K7 Crankcase Breather Hose Kit** is a highly effective solution for BMW 330i (3.0L L6) owners dealing with crankcase pressure issues, oil leaks, or excessive oil consumption. Its primary strengths lie in its ability to regulate pressure, reduce leaks, and integrate seamlessly with oil catch cans. The kit is well-suited for both stock and mildly modified engines, offering a balance of reliability and ease of installation.

However, it is not a universal fix for all oil-related problems and should be used in conjunction with proper maintenance of gaskets and seals. For engines with severe wear or those undergoing significant modifications, additional components may need attention to ensure optimal performance.

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### **Recommendation**

**Install the Rein SX-T6K7 Kit if:**

- You are experiencing oil leaks from the valve cover gasket, PCV valve, or oil filter housing.

- Your engine is consuming excessive oil, particularly in high-mileage vehicles.

- You plan to install an oil catch can or are already using one.

- You want to proactively improve crankcase pressure regulation to prevent future issues.

**Consider alternatives or additional steps if:**

- Your valve cover gasket or other seals are already failing. Replace them alongside the breather kit.

- You are modifying the engine significantly (e.g., forced induction). Consult with a BMW specialist to ensure the breather system is properly tuned for the new conditions.

- You are on a tight budget and the stock breather system is still functioning adequately (though this is not recommended for long-term reliability).

**Final Verdict:**

The Rein SX-T6K7 kit is a **highly recommended upgrade** for the 3.0L L6 engine, particularly for owners prioritizing reliability and oil leak prevention. Its ease of installation, compatibility, and proven track record make it a worthwhile investment for maintaining engine health. Pair it with regular maintenance (e.g., gasket replacements) to maximize its benefits.

Details:

Rein Crankcase Breather Hose Kit for 2001 - 2006 BMW 330Ci 3.0L L6 Engine qq: Status: In Stock.

part #: sxt6k7 price

  • $90.48

specifications emissyste:

  • for models: 330ci
  • for makes: Bmw
  • for years: 2001-2006
  • brand: Rein
  • mpn: Sx-t6k7
  • ipn: C537 81-50
  • placement on vehicle: Emission Control Crankcase Ventilation System
  • compatible year: 2006 2005 2004 2003 2002 2001
  • core charge: Free No Core Charge
  • type: Engine Crankcase Breather Hose Kit
  • universal fitment: Direct Replacement
  • bundle description: 1 Pc Genuine Rein Engine Crankcase Breather Hose Kit

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

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  • city: Indianapolis, Indiana
  • # reviews: 620474
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  • started: February 7, 2026
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  • quantity: 1
  • availability: In Stock
for models: 330ci, for makes: bmw, for years: 2001-2006, placement on vehicle: emission control crankcase ventilation system, compatible year: 2006 2005 2004 2003 2002 2001, core charge: free no core charge, type: engine crankcase breather hose kit, universal fitment: direct replacement, bundle description: 1 pc genuine rein engine crankcase breather hose kit,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust emission parts, sku: 19994756021110892,
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