Elring 039.780 Manual Transmission Main Shaft Seal

Overview of Elring Manual Transmission Main Shaft Seal 039.780

The Elring 039.780 manual transmission main shaft seal is engineered to provide reliable sealing performance for manual transmissions. Designed with precision, this seal helps maintain transmission fluid integrity and prevents leaks in various vehicle applications, including popular makes and models such as Volkswagen and Audi.

• Inside diameter: 38.0 mm for accurate shaft fitment
• Thickness: 10.0 mm ensuring proper sealing depth
• Outside diameter: 52.0 mm for secure housing installation
• Material: NBR (nitrile butadiene rubber) offering resistance to oils and wear
• Radial shaft seal design type B for effective sealing without a dust lip
• Dust cover: Without dust lip, suitable for specific transmission environments

Technical Details and Material Specifications

This manual transmission main shaft seal from Elring is constructed from nitrile butadiene rubber (NBR), a material known for its durability and resistance to petroleum-based fluids commonly found in transmissions. The seal’s dimensions—38.0 mm inside diameter, 52.0 mm outside diameter, and 10.0 mm thickness—are designed to fit tightly around the main shaft, preventing fluid leakage and contamination. The radial shaft seal design type B ensures a secure fit and reliable sealing performance, even under varying operating conditions. The absence of a dust lip indicates this seal is intended for transmission setups where dust protection is managed separately or not required.

Compatible Vehicles and Applications

The Elring 039.780 manual transmission main shaft seal is compatible with a range of manual transmission systems, particularly in European vehicles such as Volkswagen Golf, Audi A3, and other models that utilize similar transmission components. When searching for a replacement seal, referencing the part number 039.780 ensures compatibility and proper fitment for these vehicles.

Common Issues Addressed by This Seal

• Prevents transmission fluid leaks that can cause low fluid levels
• Reduces contamination of transmission internals by blocking dirt and debris
• Maintains proper lubrication of the main shaft to avoid premature wear
• Helps avoid transmission overheating due to fluid loss
• Supports smooth gear operation by preserving seal integrity

Installation Notes and Tips

When installing the Elring 039.780 main shaft seal, ensure the transmission housing and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Avoid using excessive force or sharp tools that could compromise the NBR material. Verify the seal orientation matches the radial shaft seal design type B specifications. It is recommended to inspect related transmission components during installation to address any additional wear or damage.

Quality Assurance and Warranty

Elring manufactures this manual transmission main shaft seal to meet strict quality standards, ensuring consistent performance and durability. The use of high-grade nitrile butadiene rubber provides resistance to oils and temperature variations typical in transmission environments. While specific warranty details may vary, Elring products generally come with manufacturer-backed quality assurance to support reliability in automotive applications.