VW 45KBMJ Ap Front Crankcase Vent Valve Sport Utility 4DR

( Brand: Vw ), ( Manufacturer Part Number: 45KBMJ ), ( Part Type: Valve Vent ), ( Trim: Sport, Utility, 4dr, Highline, Sel, Trendline, Se, Comfortline, S ), ( Compatible Make/model: Volkswagen Tiguan ), ( Compatible Years: 2013 2010 2012 2011 2009 13 10 12 11 09 ), ( Position: Front ), ( Fitment Info: Engine Crankcase Vent Valve 4-door, Sport Utility ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Read Full Description To Confirm Fitment ), ( Cs-sku: 400 )

Review VW Replacement Ap Front Crankcase Vent Valve Sport Utility 4dr fits TIGUAN 2009–2013

The **AP 45KBMJ Front Crankcase Vent Valve** is a precision-engineered component designed specifically for Volkswagen Tiguan models produced between 2009 and 2013, ensuring optimal performance and reliability in the engine bay. This high-quality vent valve plays a critical role in maintaining proper crankcase pressure within the engine, preventing oil leaks, and reducing emissions by efficiently channeling blow-by gases away from critical components. Crafted from durable materials, the AP 45KBMJ is built to withstand the demanding conditions of modern automotive engines, offering a robust and long-lasting solution that exceeds OEM standards. Its seamless integration into the Tiguan s engine compartment ensures a secure fit, minimizing the risk of leaks or malfunctions while contributing to smoother engine operation. Whether addressing a replacement need due to wear, failure, or proactive maintenance, this vent valve is an essential upgrade for maintaining engine health and compliance with emission regulations. Engineered for compatibility and performance, the AP 45KBMJ is a trusted choice for Tiguan owners seeking reliability and peace of mind.

### **Pros and Cons of buying a AP 45KBMJ Front Crankcase Vent Valve for a 2009 2013 VW Tiguan**

1. **Prevents Oil Leaks and Contamination** The crankcase vent valve regulates pressure in the engine bay, preventing oil from being forced out of seals or gaskets under high engine load. Without it, oil can leak into the intake system, causing misfires, poor performance, or even engine damage.

2. **Improves Engine Reliability** A failing or missing crankcase vent valve can lead to excessive crankcase pressure, straining the PCV (Positive Crankcase Ventilation) system and increasing wear on seals and gaskets. Replacing it restores proper ventilation.

3. **Prevents Carbon Buildup** A clogged or missing vent valve can allow unburned fuel and oil vapors to accumulate, leading to carbon deposits on intake valves and pistons, reducing efficiency and power.

4. **Easy Installation** The AP 45KBMJ is a direct replacement for the OEM valve in the 2009 2013 Tiguan, requiring minimal tools and no modifications. It fits standard OEM mounting points.

5. **Cost-Effective Solution** Compared to major engine repairs (e.g., valve cover gasket replacement or intake manifold leaks), replacing the vent valve is a low-cost fix that extends engine life.

6. **OEM-Quality Alternative** While not an exact OEM part, AP is a reputable aftermarket brand with good reliability ratings, offering a balance between cost and performance.

7. **Prevents Oil Foaming** Excessive crankcase pressure can cause oil to foam, reducing lubrication effectiveness and increasing wear on engine components.

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1. **Not a Permanent Fix for Underlying Issues** If the problem stems from a failing PCV system, oil leaks, or other engine issues (e.g., blown head gasket, worn piston rings), replacing just the vent valve may not fully resolve symptoms. A diagnostic check is recommended.

2. **Potential for Counterfeit or Low-Quality Parts** If purchasing from an untrusted seller, there s a risk of receiving a fake or substandard part. Always buy from reputable dealers or authorized distributors.

3. **Minor Installation Challenges** Some Tiguan models may have tight clearance around the valve housing, requiring careful handling to avoid stripping threads or damaging surrounding components.

4. **Limited Longevity Compared to OEM** While AP parts are durable, they may not last as long as genuine VW components, especially under extreme conditions (e.g., heavy towing, aggressive driving).

5. **May Not Fix All Symptoms** If the issue is related to a failing oil pump, worn crankshaft seals, or a clogged PCV hose, replacing just the vent valve might not fully eliminate all problems.

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The **AP 45KBMJ Front Crankcase Vent Valve** is a **highly recommended replacement** for the 2009 2013 VW Tiguan if the symptoms (oil leaks, excessive crankcase pressure, carbon buildup, or PCV-related issues) are confirmed. It is an **affordable, reliable, and easy-to-install** solution that prevents further engine damage and restores proper ventilation. However, if the problem persists after replacement, further diagnostics (e.g., checking the PCV system, oil leaks, or intake manifold gaskets) are necessary.

- **Buy from a trusted source** (e.g., RockAuto, Amazon, or a local auto parts store with return policies).

- **Inspect the surrounding components** (PCV hose, valve cover gasket, intake manifold) during installation.

- **Monitor engine behavior** after replacement if symptoms return, consult a mechanic for a deeper diagnosis.

- **Consider pairing it with a new PCV hose** for optimal performance.

- **If unsure about the root cause**, run a **compression test or leak-down test** to rule out more serious issues.

This part is a **wise investment** for maintaining engine health in your Tiguan, but it should be part of a broader preventive maintenance approach.

Details:

Notes: Crankcase Vent Valve And Hose Kit. Product Specifications Quantity Sold: Kit. Detailed Applications Years: Vehicle: Sub model: Body: 2010 Volkswagen Edition Sport Utility 4dr, 2009 - 2013 Volkswagen Transport 4dr. Replaces OE Number: 06H103495AC, 06J103213D, 06J103221A, 06H103495E.

Front Crankcase Vent Valve fits VW Tiguan 2009 - 2013 Sport Utility 4dr 45KBMJ: Position: Brand: Replacement AP condition: New Notes: Engine 4-Door, Utility, Features:Direct Fit.

part #: 45kbmj prices

• $35.99-$82.99

specifications cranshafengin:

• for models: Tiguan
• for years: 2009-2013
• brand: Vw
• mpn: 45kbmj
• part type: Valve Vent
• trim: Sport, Utility, 4dr, Highline, Sel, Trendline, Se, Comfortline, S
• compatible make/model: Volkswagen Tiguan
• compatible years: 2013 2010 2012 2011 2009 13 10 12 11 09
• position: Front
• fitment info: Engine Crankcase Vent Valve 4-door, Sport Utility
• manufacturer warranty: 12 Month Warranty
• attention: Read Full Description To Confirm Fitment
• cs-sku: 400

offer cranshafengin:

• availability: In Stock
• sold: 0
• started: March 26, 2026
• options: Ship-to-home
• quantity: 1

shipping cranshafengin:

• service: Economy
• cost: $0.00
• transit: 2-6 Days
• class: Economy
• type: Fixed

payments cranshafengin:

• wallet: Google-pay
• other
• credit card: Visa

returns cranshafengin:

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

seller cranshafengin:

• # reviews: 23416
• rating: 99.1%
• city: Plainville, Massachusetts

general cranshafengin:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

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