FAG SS4429 Automatic Transmission Extension Housing Seal - Rear Inner

Overview of FAG SS4429 Automatic Transmission Extension Housing Seal

The FAG SS4429 is a precision-engineered automatic transmission extension housing seal designed for select BMW and Mercedes-Benz models. Crafted with nitrile sealing material and a rubber spring seal type, this component ensures reliable sealing performance in demanding transmission environments.

• Seal Type: Rubber with spring for enhanced flexibility and durability
• Sealing Material: Nitrile, resistant to oils and transmission fluids
• Bore Diameter: 2.441 inches (62.001 mm)
• Seal Outside Diameter: 2.452 inches (62.281 mm)
• Seal Width: 1.654 inches (8.001 mm)

Detailed Product Description

The FAG SS4429 automatic transmission extension housing seal is engineered to maintain a secure seal between the transmission extension housing and the rest of the transmission assembly. Its nitrile composition offers excellent resistance to heat, oil, and wear, which is critical for maintaining transmission integrity in vehicles such as the BMW 528i and 530i, as well as Mercedes-Benz models including the CLS63 AMG S, CLS550, E250, and E550. The rubber spring seal type provides consistent sealing pressure, accommodating slight shaft misalignments and thermal expansion without compromising the seal.

Compatible Vehicles and Applications

This transmission extension housing seal is compatible with the following vehicles:

• BMW 528i and 530i
• Mercedes-Benz CLS63 AMG S and CLS550
• Mercedes-Benz E250 and E550

It is specifically designed to address common transmission sealing issues in these models, ensuring optimal performance and longevity.

Common Issues Addressed by FAG SS4429

• Prevents transmission fluid leaks at the extension housing
• Reduces risk of contamination entering the transmission system
• Maintains proper hydraulic pressure within the transmission
• Minimizes premature wear caused by fluid loss
• Helps avoid costly transmission repairs due to seal failure

Installation Notes and Tips

When installing the FAG SS4429 seal, ensure the bore and shaft surfaces are clean and free of debris. Proper lubrication of the seal with compatible transmission fluid can facilitate installation and prevent damage. Verify the seal orientation matches OEM specifications to maintain effective sealing. It is recommended to inspect the transmission extension housing for wear or damage before installation.

Quality Assurance and Warranty

FAG manufactures the SS4429 seal to meet stringent quality standards, using durable nitrile material and a reliable rubber spring design. While specific warranty details are not provided, FAG products are known for consistent manufacturing quality and performance reliability in automotive transmission applications.