1. Engine Crankshafts Products
  2. sku: 19857892126958604
  3. APA URO 94788QQMB

APA/URO PARTS 94788QQMB Crankcase Vent Valve

fits model: A8, Quattro. make: Audi. year: 2000–2006.

94788qqmb Apa/uro Parts For 2000-2006 Audi A8 Quattro Crankcase Vent Valve 2004 2001 2005 2002

( Brand: Apa/uro Parts ), ( Manufacturer Part Number: 94788QQMB ), ( Part Type: Valve Vent ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Engine Crankcase Vent Valve Color ), ( Years: 2004 2001 2005 2000 2002 2003 2006 ), ( Application: Audi A8 Quattro Crankcase Vent Valve ), ( Product Name 2: Engine Crankcase Vent Valve ), ( Cs-sku: 400 )

Review APA/URO PARTS Audi Crankcase Vent Valve fits QUATTRO A8 2000–2006

The **APA/URO 94788QQMB Crankcase Ventilation Valve** is a precision-engineered component designed specifically for the **2000 2006 Audi A8 Quattro** models equipped with the **3.0L V6 (B5) and 4.2L V8 (B7) engines**, ensuring optimal performance, emissions compliance, and long-term reliability. This high-quality replacement valve is meticulously crafted to meet or exceed OEM specifications, delivering seamless integration with the vehicle s crankcase ventilation system. The valve regulates airflow within the engine s crankcase, preventing pressure buildup while effectively filtering out contaminants such as oil vapors and particulate matter, thereby protecting critical engine components from wear and corrosion. Constructed from durable materials, including a robust housing and a precision-engineered internal mechanism, this valve is built to withstand the demanding conditions of high-performance driving and extended use. Its design ensures smooth operation, reducing the risk of oil leaks, crankcase pressure fluctuations, or PCV (Positive Crankcase Ventilation) system malfunctions common issues that can lead to reduced engine efficiency, increased emissions, or even catastrophic failure if left unaddressed. Whether replacing a worn-out OEM part or upgrading for enhanced durability, the **94788QQMB** is a trusted solution for Audi enthusiasts and professional mechanics alike, offering a perfect balance of performance, compatibility, and longevity.

### Pros and Cons of buying a APA/URO 94788QQMB Crankcase Vent Valve for 2000 2006 Audi A8 Quattro

#### **Pros:**

1. **Direct Fitment** This part is specifically designed for your model range (2000 2006 Audi A8 Quattro), ensuring compatibility without modifications. It should align perfectly with the engine bay s crankcase ventilation system.

2. **Quality and Durability** APA and URO are reputable suppliers of aftermarket automotive parts, often using high-quality materials to prevent leaks, clogs, or premature failure. The valve is engineered to withstand the pressure and temperature fluctuations in the crankcase.

3. **Prevents Oil Leaks and Contamination** A faulty crankcase vent valve can allow oil vapors to escape into the intake system, leading to oil contamination in the air filter or engine. This part helps maintain proper crankcase pressure, reducing the risk of oil leaks or sludge buildup.

4. **Easy Installation** The valve typically requires minimal tools to replace, often just a socket or wrench to remove the old unit and secure the new one. No major disassembly is usually needed, making it a straightforward DIY job.

5. **Cost-Effective Solution** Replacing a failed crankcase vent valve is significantly cheaper than dealing with the consequences of a clogged or broken valve, such as engine damage from oil contamination or increased emissions due to improper ventilation.

6. **Compatibility with Aftermarket Upgrades** If you ve modified your engine (e.g., turbocharging, forced induction), a reliable crankcase vent valve ensures proper pressure regulation, which is critical for performance and longevity.

7. **Warranty and Support** Reputable suppliers like APA/URO often provide warranties or customer support in case of defects or installation issues, offering peace of mind.

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#### **Cons:**

1. **Potential Counterfeit Risk** While APA/URO are generally trusted, there is a risk of purchasing a counterfeit or low-quality duplicate, especially if buying from unauthorized resellers. Always verify the seller s reputation and check for authenticity markings.

2. **Mismatched Part Number Confusion** Ensure the part number (94788QQMB) matches your exact vehicle year and engine variant (e.g., 4.2L V8, 3.7L V8, or 4.0L V8). Some Audi models may require slight variations in the vent valve design, though this part is widely compatible across your specified range.

3. **Installation Challenges** While generally simple, the valve may be located in a tight or hard-to-reach area, requiring patience or additional tools (e.g., a pick or flexible socket) to remove the old unit without damaging surrounding components.

4. **Symptoms May Persist if Underlying Issues Exist** If the valve is replaced but symptoms like oil leaks, excessive crankcase pressure, or engine misfires continue, another issue (e.g., a cracked oil pan gasket, faulty PCV system, or turbocharger leaks) may be at play. A thorough inspection is recommended.

5. **Limited Longevity Compared to OEM** While high-quality aftermarket parts like this one are durable, they may not last as long as an original Audi part under extreme conditions (e.g., aggressive driving, high RPMs, or frequent turbo use). However, this is rare with reputable brands.

6. **Price Sensitivity** Aftermarket parts are often priced lower than OEM, but some buyers may perceive them as less reliable. However, for this specific part, the aftermarket option is a cost-effective alternative to an OEM replacement.

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### **Conclusion:**

The **APA/URO 94788QQMB crankcase vent valve** is a strong choice for your 2000 2006 Audi A8 Quattro due to its direct fitment, quality construction, and ease of installation. It addresses critical issues like oil vapor leaks and crankcase pressure regulation, which are essential for engine health and performance. The part is cost-effective and widely compatible across your model range, making it a practical upgrade or replacement option.

However, buyers should exercise caution to avoid counterfeit products and ensure the part matches their exact engine variant. If symptoms persist after replacement, further diagnostics are necessary to rule out related issues. For most owners, this valve will provide reliable service and prevent costly engine problems down the line.

### **Recommendation:**

- **Purchase from a trusted supplier** (e.g., official APA/URO dealers, reputable online marketplaces like RockAuto, or authorized Audi parts distributors) to guarantee authenticity.

- **Verify the part number** against your vehicle s specifications (e.g., engine code) to avoid mismatches.

- **Follow installation instructions carefully**, and consider consulting a mechanic if the valve is difficult to access.

- **Monitor the engine** post-installation for any unusual noises, leaks, or performance changes. If issues arise, inspect other components like the PCV system or oil pan gasket.

- **Consider OEM replacement** only if aftermarket options are unavailable or if you prioritize long-term reliability over cost savings.

For the majority of Audi A8 owners, the **APA/URO 94788QQMB is a reliable and recommended choice** for maintaining crankcase ventilation integrity.

Details:

Parts Geek - For 2000 - 2006 Audi A8 Quattro Crankcase Vent Valve 94788QQMB 2004 2001 2005 2002: Review Fitment Notes to Ensure Proper Fit condition: New Brand: APA/URO Notes: Engine Color: Black Finish: Matte Bracket Included: No OE Reference Number: 077 103 245B Smooth Paint Features: Guaranteed fitment. URO Parts' replacement breather covers for crank case vent valves are precisely manufactured to OE dimensions easy installation. Durable high-quality materials are corrosion-resistant and withstand oil vapor intense engine heat. 12 Month Warranty Fitment Notes: Vehicle: 2000 - 2006 Audi A8 Quattro.

part #: 94788qqmb price

  • $30.15

specifications cranshafengin:

  • for models: A8, Quattro
  • for makes: Audi
  • for years: 2000-2006
  • brand: Apa/uro Parts
  • mpn: 94788qqmb
  • part type: Valve Vent
  • manufacturer warranty: 12 Month Warranty
  • notes: Engine Crankcase Vent Valve Color
  • years: 2004 2001 2005 2000 2002 2003 2006
  • application: Audi A8 Quattro Crankcase Vent Valve
  • product name 2: Engine Crankcase Vent Valve
  • cs-sku: 400

shipping cranshafengin:

  • type: Fixed
  • transit: 3-7 Days
  • class: Standard
  • carrier: FedEx
  • cost: $0.00
  • service: FedEx Ground / FedEx Home Delivery

general cranshafengin:

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

seller cranshafengin:

  • rating: 98.8%
  • # reviews: 328400
  • city: Atlanta, Georgia

offer cranshafengin:

  • availability: In Stock
  • quantity: 1
  • started: April 15, 2026
  • options: Ship-to-home
  • sold: 0

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  • wallet: Google-pay
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returns cranshafengin:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days
for models: a8, quattro, for makes: audi, for years: 2000-2006, part type: valve vent, manufacturer warranty: 12 month warranty, notes: engine crankcase vent valve color, years: 2004 2001 2005 2000 2002 2003 2006, application: audi a8 quattro crankcase vent valve, product name 2: engine crankcase vent valve, cs-sku: 400,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19857892126958604,
Apa/uro Parts 94788QQMB Is Similar To:
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1 offer $30.15 USD
  • New. Offer #1 priced at $30.15 + $0.00 shipping estimate = $30.15* total. 2000-2006 Audi A8 Quattro Notes: Engine Crankcase Vent Valve -- Color: Black.FREE SHIPPING

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