AUDI GENUINE OEM ORIGINAL FACTORY PART 4B3121107 Breather RS6 V8 Vacuum Pressure Air Hose Pipe Valve Lines

( Brand: Audi Genuine Oem Original Factory Part ), ( Part Type: Vacuum Pressure Pipe Valve Line Breather Hose ), ( Ipn: 4b3121107 ), ( Items Included: Gasket, Mounting Hardware, Protective Sleeve, Seal ), ( Features: Durability Tested ), ( Material: Metal ), ( Universal Fitment: Yes ), ( Country Of Origin: Germany )

Review AUDI GENUINE OEM ORIGINAL FACTORY PART Rs6 V8 Breather Vacuum Pressure Air Cool Hose Pipe Valve Lines fits C5 2003–2004

The Audi 4B3121107 is a crucial component for the ventilation system in the 2003-2004 Audi RS6 C5 V8 engines. This part is specifically designed as a breather vacuum pressure air hose pipe valve line. Its primary function is to facilitate the smooth flow of air between the crankcase and the intake manifold, ensuring optimal engine performance.

This hose is manufactured with high-quality materials, ensuring durability and reliability. Its outer layer is made of reinforced rubber, providing flexibility and resistance to wear and tear. Meanwhile, its inner layer is composed of a specially formulated hose material that can withstand the high pressure and temperature conditions present in the engine bay.

The Audi 4B3121107 hose features a robust design, with sturdy clamps and secure fittings that ensure a leak-free connection. The clamps are made of metal, providing a strong and durable seal that can withstand the stresses of constant use. Additionally, the hose is equipped with a valve line that regulates the flow of air between the crankcase and the intake manifold, preventing unwanted pressure build-up.

This hose is essential for maintaining the health of your Audi RS6 C5 V8 engine. A damaged or worn-out breather hose can lead to a multitude of engine issues, including reduced performance, rough idling, and even engine damage. By replacing your old hose with a new Audi 4B3121107, you can ensure that your engine is breathing properly, leading to improved performance, smoother idling, and longer engine life.

In summary, the Audi 4B3121107 is a vital ventilation system component for the 2003-2004 Audi RS6 C5 V8 engines. Its function as a breather vacuum pressure air hose pipe valve line ensures optimal engine performance by facilitating the smooth flow of air between the crankcase and the intake manifold. This high-quality hose is manufactured with durable materials, featuring sturdy clamps and secure fittings, making it an essential replacement for worn-out or damaged hoses.

Buying an Audi 4B3121107 2003-2004 RS6 C5 V8 breather vacuum pressure air hose pipe valve lines involves understanding both the advantages and disadvantages of this purchase.

1. Original Equipment: This part is an original equipment manufacturer (OEM) component, ensuring a perfect fit and optimal performance in your Audi RS6 C5 V8.

2. Enhanced Engine Performance: Properly functioning breather vacuum lines are crucial for maintaining engine performance and longevity. A new set of lines can help improve engine efficiency and reduce the risk of vacuum leaks.

3. OEM Quality: OEM parts typically come with a warranty, providing peace of mind and protection against any potential defects or issues.

1. Cost: OEM parts can be more expensive than aftermarket alternatives. However, the premium price may be worth it for the guaranteed fit and performance.

2. Availability: Due to the specificity of this part, it may be harder to find in local stores. You might need to order it online or contact a dealership to ensure availability.

3. Installation Complexity: As this is a specialized part, the installation process could be more complicated than for other parts. It may require additional tools or expertise, potentially increasing the overall cost of the repair.

The decision to buy an Audi 4B3121107 2003-2004 RS6 C5 V8 breather vacuum pressure air hose pipe valve lines ultimately depends on your priorities as a car owner. If you value the perfect fit, OEM quality, and peace of mind that comes with using genuine parts, then this is the choice for you. However, if budget is a concern, you might consider looking into aftermarket alternatives.

If you decide to go with an OEM part, we recommend purchasing it from a reputable dealership or Audi parts supplier to ensure authenticity and warranty coverage. If your budget is limited, researching reliable aftermarket alternatives with positive customer reviews can be a cost-effective solution. Ensure that the aftermarket part is a direct fit and comes with a warranty to minimize any potential risks.

part # 4b3121107 prices

• $64.05-$180.00

specifications motochilled:

• for models: C5
• for makes: Audi
• for years: 2003-2004
• brand: Audi Genuine Oem Original Factory Part
• part type: Vacuum Pressure Pipe Valve Line Breather Hose
• interchange part number: 4B3121107
• items included: Gasket, Mounting Hardware, Protective Sleeve, Seal
• features: Durability Tested
• material: Metal
• universal fitment: Yes
• country of origin: Germany

general motochilled:

• Car Truck Parts Accessories > Engine Cooling Components > Engine Oil Coolers Lines
• condition: Used

offer motochilled:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: December 18, 2025
• quantity: 1

returns motochilled:

• policy: No Returns

seller motochilled:

• # reviews: 452
• rating: 100.0%

payments motochilled:

• wallet: Paypal
• other
• credit card: Visa

shipping motochilled:

• cost: $12.45
• transit: 4-11 Days
• carrier: USPS, UPS, FedEx
• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy
• class: Standard, Economy
• type: Calculated

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