BMW 11-61-1-729-728 Engine Crankcase Vent Valve Seal

( Manufacturer Part Number: 11-61-1-729-728 ), ( Model: 530I 540I 740I 740IL 840CI X5 ), ( Part Type: Valve Seal Engine Vent ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review BMW Genuine Engine Crankcase Vent Valve Seal fits 530I 1993–2003

The **BMW 11-61-1-729-728 Engine Crankcase Vent Valve Seal** is a precision-engineered component designed to maintain optimal airflow and pressure regulation within the crankcase ventilation system of select BMW internal combustion engines. This critical seal ensures that harmful blow-by gases generated during combustion are efficiently routed away from the engine block while preventing the ingress of contaminants, such as dust, moisture, or debris, that could compromise engine performance or longevity. Crafted from high-quality elastomeric materials, this valve seal is engineered to withstand the thermal and mechanical stresses of high-performance driving conditions, offering reliable sealing properties even under extreme operating temperatures. Its unique design incorporates a spring-loaded mechanism that allows controlled venting of crankcase gases while minimizing oil loss and maintaining a tight seal when closed, thereby reducing emissions and preventing oil dilution in the intake system. Ideal for applications in BMW engines equipped with the N52, N54, or N55 inline-six architectures, this part is a direct-fit replacement for the original equipment manufacturer (OEM) component, ensuring seamless integration with the engine s crankcase ventilation system. Whether addressing symptoms of excessive oil consumption, unusual hissing noises, or concerns about reduced engine efficiency, this valve seal plays a pivotal role in preserving the integrity of the engine s internal environment, contributing to smoother operation, extended component life, and adherence to emissions standards. For optimal results, it is recommended to install this seal during routine maintenance or as part of a comprehensive crankcase ventilation system overhaul, ensuring compatibility with the engine s specific airflow dynamics.

### **Pros and Cons of buying a BMW N13/N14 11-61-1-729/728 Engine Crankcase Vent Valve Seal**

1. **Prevents Oil Contamination** A failing crankcase vent valve seal can allow oil vapors to escape, leading to oil leaks or carbon buildup in the intake system. Replacing it ensures proper ventilation and reduces the risk of engine damage.

2. **Improves Engine Performance** A clogged or leaking vent valve can restrict airflow, leading to poor combustion efficiency. A new seal restores proper airflow, enhancing engine performance and fuel economy.

3. **Extends Engine Life** By maintaining proper crankcase pressure, the seal helps prevent excessive oil consumption and internal wear, prolonging the engine s lifespan.

4. **Prevents Oil Leaks** A worn seal may allow oil to seep into the intake manifold or airbox, causing leaks. Replacing it eliminates this risk.

5. **OEM or High-Quality Replacement** If purchasing an aftermarket part, reputable brands offer durability comparable to OEM seals, ensuring reliability.

6. **Easy Installation** The crankcase vent valve seal is typically a straightforward replacement, often requiring only basic tools and minimal disassembly.

1. **Potential for Counterfeit Parts** If buying from untrusted sellers, there is a risk of receiving low-quality or fake parts that may fail prematurely.

2. **Cost Consideration** While individual seals are relatively inexpensive, labor costs (if not DIY) can add up, especially if additional components (like the intake manifold gasket) need replacement.

3. **Misdiagnosis Risk** Symptoms like oil leaks or rough idle can stem from other issues (e.g., valve cover gasket, PCV system failure). Replacing just the vent valve seal may not solve the problem if the root cause is elsewhere.

4. **DIY Difficulty for Beginners** While the job is manageable, inexperienced mechanics may struggle with proper sealing or reassembly, leading to leaks or improper function.

5. **Limited Lifespan** Like all rubber seals, this part will eventually wear out again, requiring future replacement.

The BMW N13/N14 crankcase vent valve seal is a critical but often overlooked component. Replacing it is a cost-effective preventive measure that can avoid more serious engine issues down the line. The benefits such as improved performance, extended engine life, and prevention of oil leaks far outweigh the minor drawbacks, provided the part is genuine and installed correctly.

- **Purchase from a trusted source** (BMW dealership, reputable aftermarket suppliers, or verified online retailers) to avoid counterfeit parts.

- **Inspect surrounding components** (valve cover gasket, PCV system, intake manifold) during installation to ensure no related issues exist.

- **Consider DIY installation** if comfortable with basic engine work, as it saves labor costs. If unsure, consult a professional mechanic.

- **Replace the seal as part of routine maintenance** (e.g., during valve cover or intake manifold service) rather than waiting for symptoms to appear.

For most BMW N13/N14 owners, replacing this seal is a worthwhile investment in long-term engine health.

Details:

Genuine BMW Engine Crankcase Vent Valve Seal 11-61-1-729-728: Parts: To Intake Manifold. Electrical parts are not returnable. Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 11611729728 prices

• $17.44-$21.15

specifications emissyste:

• for makes: Bmw
• for years: 1993-2003
• mpn: 11-61-1-729-728
• model: 530i 540i 740i 740il 840ci X5
• part type: Valve Seal Engine Vent
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
• parts included: Only Part Reference 0 On The Diagram Is Included

payments emissyste:

• credit card: Mastercard
• other
• wallet: Apple-pay

shipping emissyste:

• cost: $0.00
• transit: 3-7 Days
• type: Fixed
• class: Standard, Expedited, One-day
• service: Standard, Expedited, Overnight

offer emissyste:

• quantity: 1
• availability: In Stock
• started: March 3, 2026
• sold: 0
• options: Ship-to-home

general emissyste:

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

returns emissyste:

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

seller emissyste:

• rating: 99.6%
• city: Glendale, Arizona
• # reviews: 1050

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