Dorman 47424 Power Brake Booster Check Valve

Overview of Dorman Power Brake Booster Check Valve 47424

The Dorman Power Brake Booster Check Valve 47424 is designed to maintain proper vacuum pressure in the brake booster system. This essential component ensures reliable brake performance for various Audi and Volkswagen models, including the A3, A4, A5, A6, Beetle, Golf, Jetta, Passat, Polo, Q5, S5, and TT series.

• Constructed from durable black plastic for corrosion resistance
• Straight fitting outlet angle for direct hose connection
• Precise hose end outside diameter of 0.331 inches
• Grommet end outside diameter measures 0.332 inches for secure fit
• Valve opening size of 0.2 inches to regulate vacuum flow
• Single outlet design for straightforward installation
• Includes one check valve per package

Detailed Product Description

The Dorman 47424 power brake booster check valve is engineered to maintain vacuum integrity within the brake booster system, preventing backflow and ensuring consistent brake assist. Made from high-quality plastic, this valve offers resistance to wear and environmental factors. Its straight fitting outlet angle simplifies hose routing and installation, while the precise dimensions of the hose and grommet ends ensure a tight, leak-free connection. Compatible with a range of Audi and Volkswagen vehicles such as the Audi A3 Quattro, A4 Quattro, and Volkswagen Golf, Jetta, and Passat, this check valve supports optimal brake system function.

Common Applications and Problem Resolution

• Prevents loss of vacuum pressure in the brake booster
• Eliminates brake pedal hardening caused by vacuum leaks
• Stops engine stalling related to faulty brake booster valves
• Resolves hissing noises from the brake booster area
• Maintains consistent brake assist performance

Installation Notes and Tips

When installing the Dorman 47424 check valve, ensure the valve is oriented correctly to allow vacuum flow toward the brake booster. Verify that the hose and grommet ends fit securely to prevent leaks. It is recommended to inspect the brake booster hose for cracks or damage and replace if necessary. Use appropriate tools to avoid damaging the plastic valve during installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 47424 power brake booster check valve undergoes rigorous quality control to ensure proper fit and function. Warranty coverage details can be obtained from the product documentation or manufacturer.