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Vent Line

GENUINE PORSCHE
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SKU 4008077
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$121.95 - $121.95
$121.95
$121.95 - $121.95
$121.95
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CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The OEM Engine Crankcase Breather Hose part number 4008077 for Porsche is a high-quality replacement part that is designed to fit perfectly with part number 948 107 245 53. This part is specifically built to meet or exceed the OEM standards, providing a reliable and long-lasting solution for your vehicle.

Constructed with premium materials, this Engine Crankcase Breather Hose is built to withstand harsh engine conditions, high temperatures, and pressure. The part is designed to effectively vent the engine’s crankcase, preventing oil leaks and reducing the overall pressure within the engine.

Installing this Engine Crankcase Breather Hose is easy, thanks to its precision fit and easy-to-use design. The part is engineered to ensure a hassle-free installation process, reducing the time and effort required to replace the hose.

In addition to its durability and ease of installation, this Engine Crankcase Breather Hose offers several benefits. It helps reduce emissions and improves fuel efficiency, making it an environmentally friendly choice for your vehicle. By effectively venting the engine’s crankcase, the hose also helps to prolong the life of your engine, ensuring reliable and consistent performance.

Overall, the OEM Engine Crankcase Breather Hose part number 4008077 for Porsche is a highly recommended replacement part that offers excellent reliability, durability, and performance. Whether you’re a professional mechanic or a DIY enthusiast, this part is a great choice for maintaining the performance and longevity of your Porsche.

Brand Part #
Brand Part #
Porsche 948 107 245 53 / 94810724553

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
Porsche
Make Model Engine Years
Porsche Cayenne 4.8V8 2008–2010

Fitment data last updated: 2026-06-30

Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

About this Crankcase Ventilation (PCV)

The GENUINE PORSCHE 4008077 is part of the crankcase ventilation (PCV) system, which routes gases that escape past the pistons back into the intake to be burned, and separates oil out of them. When the system fails, crankcase pressure and oil consumption can rise quickly.

Frequently asked questions

What does the crankcase ventilation system do?

It relieves pressure inside the engine by drawing blow-by gases back into the intake, while an oil separator or valve keeps oil out of the intake. Correct crankcase pressure protects seals and gaskets.

What are the signs of a failed PCV valve or oil separator?

A whistling or howling noise at idle, rough idle, lean-running fault codes, higher oil consumption, oil leaks from seals, blue smoke, or suction at the oil filler cap strong enough to hold the cap down.

What should I replace along with it?

Crankcase vent hoses become brittle with heat and age, so inspect and replace cracked hoses and fittings at the same time. On many European engines, the valve cover and separator are serviced together.

Can I replace PCV components myself?

Many parts are accessible with basic tools, though some separators sit under the intake manifold. Handle old plastic fittings carefully, as they can break during removal.

How do I make sure this crankcase ventilation part fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.