Gates EMH904 Engine Crankcase Vent Valve

Overview of Gates Crankcase Vent Valve EMH904

The Gates Crankcase Vent Valve EMH904 is designed to maintain proper ventilation within the engine crankcase for select Audi and Volkswagen models. This engine crankcase vent valve helps regulate pressure and emissions, ensuring efficient engine performance and compliance with emission standards.

• Constructed from durable plastic, rubber, and steel materials
• Features two hose connectors for secure attachment
• Inside diameter of 0.67 inches (17 mm) for both hose connections
• Part number EMH904 for precise identification
• Compatible with Audi A4, A4 Quattro, and Volkswagen Golf models

Detailed Product Description

The Gates Crankcase Vent Valve from the Crankcase Vent Valve product line is engineered to provide reliable crankcase ventilation for your vehicle. This valve is made from a combination of plastic, rubber, and steel, offering a balance of flexibility and strength to withstand engine conditions. It includes two hose connectors, each with an inside diameter of 0.67 inches (17 mm), ensuring a proper fit with the vehicle’s ventilation hoses. The part number EMH904 corresponds specifically to this valve, making it easy to identify for replacement or maintenance purposes.

Purpose and Common Applications

• Helps control crankcase pressure to prevent oil leaks and gasket damage
• Reduces harmful emissions by routing blow-by gases back into the intake system
• Prevents engine performance issues related to improper ventilation
• Supports emission control compliance for Audi A4, A4 Quattro, and Volkswagen Golf vehicles
• Maintains engine efficiency by ensuring proper crankcase gas flow

Installation Notes and Tips

When installing the Gates Crankcase Vent Valve EMH904, ensure that both hose connectors are securely attached to the corresponding hoses with the correct inside diameter of 0.67 inches (17 mm). Inspect the surrounding components for wear or damage before installation. Proper installation will help maintain engine ventilation and prevent vacuum leaks. Refer to the vehicle’s service manual for specific installation procedures related to Audi A4, A4 Quattro, and Volkswagen Golf models.

Quality Assurance and Warranty

Gates manufactures the Crankcase Vent Valve EMH904 to meet industry standards for durability and performance. The use of plastic, rubber, and steel materials ensures resistance to engine heat and chemical exposure. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance to support reliable operation in emission control systems.