Genuine Porsche 946-107-229-77 Crankcase Vent Valve Right Side

The Genuine Porsche 946-107-229-77 is a right side crankcase vent valve, also known as a positive crankcase ventilation (PCV) valve or emission check valve. This OE component is a critical part of your Porsche's emission control system, responsible for managing crankcase pressure and directing oil vapors back into the intake system for combustion rather than venting them into the atmosphere.

Key Features:

• Genuine Porsche OE part for guaranteed fit and performance
• Right side (passenger side) position
• 52mm diaphragm diameter
• Pressure-controlled operating mode
• Black housing constructed from durable PA66-GF30 material
• FPM (fluoride rubber) seal for long-lasting reliability
• Bolt-on mounting for straightforward installation

Function and Importance:

This crankcase vent valve regulates fresh air intake into the crankcase as part of the PCV system. When functioning properly, it prevents excessive vacuum buildup that could damage engine seals. These valves are exposed to oil vapor and heat cycles, making them regular maintenance items. Porsche and automotive experts recommend replacement every 50,000-100,000 miles to prevent oil leaks and maintain proper engine ventilation. A faulty valve can lead to increased oil consumption, oil leaks, rough idle, and emission control issues.

What's Included:

• One (1) genuine Porsche crankcase vent valve

Technical Specifications:

• Manufacturer Part Number: 946-107-229-77 (94610722977)
• Position: Right side
• Port Quantity: 2
• Mounting Type: Bolt-on

This is a VIN-specific part, so please verify your existing part number before ordering to ensure proper fitment. Commonly replaced alongside its left side counterpart (946-107-230-77) during major service intervals or when addressing crankcase ventilation system issues.