HomeEmission Control > Crankcase Ventilation SystemGenuine 99710703800 Engine Crankcase Vent Valve
Part #: 99710703800

Genuine 99710703800 Engine Crankcase Vent Valve

9 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Porsche, 911
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Overview of Genuine Engine Crankcase Vent Valve for Porsche 911

The Genuine Engine Crankcase Vent Valve, part number 99710703800, is designed specifically for Porsche 911 models. This component plays a critical role in the emission control system by regulating crankcase ventilation to maintain engine performance and reduce harmful emissions.

  • Compatible with Porsche 911 models
  • Part number 99710703800 ensures exact OEM fit
  • Essential for proper crankcase ventilation and emission control
  • Durable construction for reliable engine operation
  • Direct replacement for factory-installed valve

Detailed Product Description

This Genuine Engine Crankcase Vent Valve (99710703800) is engineered to meet the precise specifications required by Porsche 911 engines. It controls the flow of gases from the crankcase back into the intake manifold, preventing pressure buildup and reducing emissions. Proper function of this valve helps maintain engine efficiency and prevents oil leaks or contamination. Designed as a direct OEM replacement, it ensures seamless integration with the vehicle’s emission control system without modification.

Purpose and Common Issues Addressed

  • Prevents excessive crankcase pressure that can cause oil leaks
  • Reduces harmful hydrocarbon emissions from the engine
  • Maintains optimal engine performance by regulating ventilation
  • Helps avoid check engine light triggers related to crankcase ventilation
  • Prevents contamination of intake system with oil vapors

Installation Notes and Tips

Installation of the Genuine Engine Crankcase Vent Valve (99710703800) should be performed following Porsche 911 service guidelines. Ensure the engine is cool before removal and replacement. Inspect surrounding hoses and seals for wear or damage during installation. Properly secure all connections to avoid vacuum leaks. No special tools are required beyond standard automotive hand tools.

Quality Assurance and Warranty

As a Genuine part, this crankcase vent valve meets Porsche’s original equipment standards for fit, form, and function. It is manufactured to strict quality controls to ensure durability and reliable operation. Warranty coverage is provided in accordance with Porsche’s OEM parts policies, offering assurance of product integrity and performance.

This part fits 9 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2008Porsche911Targa 4SN/AExternal; Primary
2008Porsche911Carrera 4SN/AExternal; Primary
2008Porsche911Carrera SN/AExternal; Primary
2007Porsche911Targa 4SN/AExternal; Primary
2007Porsche911Carrera 4SN/AExternal; Primary
2007Porsche911Carrera SN/AExternal; Primary
2006Porsche911Carrera 4SN/AExternal; Primary
2006Porsche911Carrera SN/AExternal; Primary
2005Porsche911Carrera SN/AExternal; Primary

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.