FAG SS3746 Automatic Transmission Pinion Seal

FAG SS3746 Automatic Transmission Pinion Seal

The FAG SS3746 is an automatic transmission pinion seal built with a metal and spring seal design and nitrile sealing material for dependable sealing performance. It is sized for precise bore and outside diameter fitment, making it a direct-match service part for select Cadillac Eldorado and Oldsmobile Toronado applications.

Key Features

• Part number SS3746 for accurate ordering and service lookup
• Metal and spring seal type for stable sealing support
• Nitrile sealing material for transmission sealing applications
• Bore diameter: 2.75 in. (69.85 mm)
• Seal outside diameter: 2.754 in. (69.952 mm)
• Seal width: 1.625 in. (41.275 mm)
• Cross-reference part numbers include 473443 and 4133746100

Detailed Description

FAG SS3746 is engineered to meet vehicle manufacturer specifications using high-quality materials selected for sealing performance and durability. The seal is designed to maintain a tight barrier at the transmission pinion area, helping preserve lubricant integrity and keep contaminants out of critical drivetrain components. This makes it a practical replacement choice for 1967-1978 Cadillac Eldorado and 1966-1974 Oldsmobile Toronado applications, including vehicles referenced under Schaeffler Seal Global Number 413 3746 100. The SS3746 part number is also useful when cross-checking service records and interchange data.

What This Seal Helps Address

• Transmission fluid leakage at the pinion seal area
• Contamination from dirt, dust, and moisture entering the seal interface
• Wear caused by loss of lubricant protection
• Service issues tied to incorrect seal dimensions
• Replacement needs for Cadillac Eldorado and Oldsmobile Toronado drivetrain service

Installation Notes and Tips

Verify bore diameter, outside diameter, and seal width before installation to confirm the correct match for your application. Inspect the sealing surface for scoring, corrosion, or debris that could affect sealing performance. Clean the housing thoroughly and install the seal squarely to avoid distortion of the metal and spring assembly. For fitment reference, this part fits 1967-1978 Cadillac Eldorado and 1966-1974 Oldsmobile Toronado.

Quality Assurance

FAG designs seals to meet manufacturer specifications and works with suppliers to maintain its quality standards. The SS3746 is built for application-specific fitment and consistent sealing performance in the vehicles listed above.