Elring 843.040 Engine Valve Stem Oil Seal

Reliable Engine Valve Stem Oil Seal for Audi and Volkswagen

The Elring 843.040 engine valve stem oil seal is designed to provide precise sealing performance for various Audi and Volkswagen models. Manufactured from durable FPM (fluoride rubber), this seal ensures effective oil control and long-lasting operation in demanding engine environments.

• Material: FPM (fluoride rubber) for high resistance to heat and chemicals
• Inside Diameter: 7.8 mm for accurate fitment
• Outside Diameter: 10.5 mm ensuring secure sealing
• Thickness: 10.2 mm for optimal durability
• Valve Stem Diameter: 5 mm compatible with specified engine valve stems

Technical Details and Compatibility

The Elring 843.040 valve stem oil seal is engineered to meet the specifications required by Audi and Volkswagen engines. Its FPM material offers excellent resistance to engine oils, fuels, and high temperatures, making it suitable for models such as Audi A1, A3, A4, A5, A5 Sportback, Q2 Quattro, Q3, Q3 Quattro, Q5, and Volkswagen Caddy, Crafter, Crafter Van, Passat, and Tiguan. The precise dimensions—7.8 mm inside diameter, 10.5 mm outside diameter, and 10.2 mm thickness—ensure a tight seal around the 5 mm valve stem diameter, preventing oil leaks and maintaining engine efficiency.

Common Applications and Problem Solving

• Prevents oil leakage around the valve stem
• Reduces engine oil consumption due to worn seals
• Maintains proper lubrication of valve stems
• Helps avoid engine misfires caused by oil contamination
• Protects against premature valve guide wear

Installation Notes and Tips

When installing the Elring 843.040 valve stem oil seal, ensure the valve stem and surrounding areas are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal is seated evenly to maintain proper sealing performance. It is recommended to inspect related components such as valve guides and springs during replacement to ensure overall engine health.

Quality Assurance and Warranty

Elring manufactures the 843.040 valve stem oil seal to meet stringent quality standards, ensuring reliable performance in Audi and Volkswagen engines. The use of FPM material provides durability under high temperature and chemical exposure. While specific warranty details are not provided, Elring products are known for consistent quality and adherence to OEM specifications.