Passer au contenu
Engine Crankcase Breather Hose – Oil Reservoir to Air Filter Housing

Engine Crankcase Breather Hose – Oil Reservoir to Air Filter Housing

GENUINE PORSCHE
Disponibilité:
Rupture de stock
UGC 91110739301
Épuisé
$58.12 - $58.12
$58.12
$58.12 - $58.12
$58.12
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.

Rewards
EARN REWARD POINTS
Purchasing this product will earn you 290 points to redeem on future purchases. Check your points.

Engine Crankcase Breather hoses are part of a vehicle’s Positive Crankcase Ventilation (PCV) system. The job of the PCV system is to allow pressure to escape from the crankcase in a controlled manner. It is necessary to vent the crankcase of positive pressure caused by engine blow-by (gas from the combustion event that leaks past the pistons.) This blow-by gas is routed back into the intake air stream thereby reducing the emission of unburned hydrocarbons into the atmosphere. Damaged crankcase breather hoses are a common source of engine vacuum leaks and often a source of check engine lights in modern vehicles.

Brand Part #
Brand Part #
Porsche 911 107 393 01 / 91110739301

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 10 applications
Porsche
Make Model Engine Years
Porsche 911Base 2.7H6 1974–1974
Porsche 911T 2.2H6 1970–1971
Porsche 911T 2.3H6 1972–1973
Porsche 911E 2.2H6 1970–1971
Porsche 911E 2.3H6 1972–1973
Porsche 911S 2.2H6 1970–1971
Porsche 911S 2.3H6 1972–1973
Porsche 911S 2.7H6 1974–1977
Porsche 911Carrera 2.7H6 1974–1975
Porsche 912E 2.0H4 1976–1976

Fitment data last updated: 2026-10-02

Fits 10 vehicle applications Check vehicle fitment before ordering View fitment

About this Crankcase Ventilation (PCV)

The GENUINE PORSCHE 91110739301 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.