FAG SS3952 Automatic Transmission Output Shaft Seal - Right

Automatic Transmission Output Shaft Seal for Ford, Mazda, and Mercury

The FAG SS3952 automatic transmission output shaft seal is built with a metal and spring seal design and Viton sealing material for demanding drivetrain service. It is engineered to help maintain a clean sealing surface at the transmission output shaft, where fluid retention and contamination control are critical.

Compatible With 2001-2012 Ford Escape, right; 2001-2004 Mazda Tribute, right; 2005-2006 Mazda Tribute, right; 2008 Mazda Tribute, right; and 2005-2008 Mercury Mariner, right. This FAG SS3952 seal is a direct-fit service part for the listed right-side applications.

Key Features

• Part number: SS3952
• Automatic transmission output shaft seal
• Seal type: metal with spring
• Sealing material: Viton
• Bore diameter: 2.756 in. / 70.002 mm
• Seal outside diameter: 2.763 in. / 70.18 mm
• Seal width: 2.254 in. / 8.636 mm
• Fits right-side applications for select Ford Escape, Mazda Tribute, and Mercury Mariner models

Detailed Description

FAG SS3952 is a transmission sealing component designed for the output shaft area, where precise dimensions and durable sealing materials matter. The Viton sealing element is selected for resistance in demanding automotive environments, while the metal and spring construction helps maintain sealing contact under operating conditions. With its specified bore diameter, outside diameter, and width, this seal is intended to match the listed OE-style applications without guesswork. The SS3952 is a practical replacement choice for drivers servicing a Ford Escape, Mazda Tribute, or Mercury Mariner with the correct right-side fitment.

This part cross-references Gates 22525 and National 481191V for the same application.

Common Problems This Seal Can Address

• Transmission fluid leakage at the output shaft seal area
• Contamination entering the transmission sealing surface
• Wear-related seepage from an aging shaft seal
• Loss of fluid retention around the right-side output shaft
• Service replacement for a damaged or hardened seal

Installation Notes and Tips

Verify the vehicle year, make, model, and right-side application before installation. Inspect the shaft surface and surrounding housing for wear, scoring, or contamination before fitting the new seal. Clean the sealing area thoroughly and confirm the seal is seated squarely to help maintain proper contact. Match the part dimensions to the original component when servicing the transmission output shaft.

Quality Assurance

FAG designs sealing components to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards. The SS3952 is built around application-specific dimensions and materials for the listed Ford, Mazda, and Mercury vehicles.