Vaico V45-0035 Engine Crankcase Vent Valve - Center

VAICO Crankcase Vent Valve for Porsche 911

The VAICO V45-0035 engine crankcase vent valve is a pressure-controlled breather valve for emission control service on select Porsche 911 models. Built with a Polyamid 6.6 housing and FPM/ACM seal materials, it is specified for direct replacement use where OE number 99710703800 is listed.

• Pressure-controlled breather valve for crankcase ventilation service
• Polyamid 6.6 housing for durable under-hood use
• FPM (fluoride rubber) and ACM (polyacrylate rubber) seal materials
• Includes seal ring
• Dimensions: 150 mm length, 142 mm width, 135 mm height
• Recommended replacement interval: 60,000 km or 3 years
• Cross-reference: OE number 997 107 038 00

Product Details

VAICO VAICO V45-0035 is an engine crankcase vent valve used in the crankcase ventilation system to regulate pressure and route vapors through the emission control circuit. This breather valve is listed for Porsche 911 applications from 2005 through 2008, including 2005 Porsche 911 and 2006-2008 Porsche 911 center-position fitments. For buyers searching for a Porsche 911 crankcase vent valve, Porsche 911 breather valve, or OE-style replacement for part number 99710703800, this part matches the listed application data.

The VAICO product line focuses on service parts built to OE-style specifications for European vehicles, with attention to material selection and fitment accuracy. The V45-0035 uses a pressure-controlled operating mode and seal materials selected for crankcase ventilation sealing performance.

Common Issues This Part Addresses

• Crankcase pressure regulation problems
• Oil vapor routing issues in the ventilation system
• Faults related to a worn or leaking breather valve
• Seal leakage at the crankcase ventilation connection
• Service replacement for OE number 99710703800

Installation Notes

Verify the OE number, position, and model year before installation. This part is listed for center-position and N/A-position Porsche 911 applications, so match the vehicle configuration exactly. Inspect the sealing surfaces and replace the valve at the recommended service interval of 60,000 km or 3 years when performing crankcase ventilation maintenance.

Quality Assurance

VAICO V45-0035 is built as an OE-style replacement part for the listed Porsche 911 applications and is specified with defined dimensions, housing material, and seal composition for consistent fitment and serviceability.