Federal Mogul 711037 Automatic Transmission Output Shaft Seal Gaskets & Seals

The Federal Mogul National 711037 is a premium automatic transmission output shaft seal engineered for reliable performance and extended service life. This spring-loaded single-lip seal features advanced polyacrylate construction that delivers exceptional resistance to extreme temperatures and modern automotive fluids.

Key Specifications:

• Inside Diameter (Shaft): 1.378 inches (35.0mm)
• Outside Diameter: 2.886 inches (73.3mm)
• Flanged Outside Diameter: 3.142 inches (79.8mm)
• Thickness: 0.321 inches (8.15mm)
• Overall Width with Side Lip: 0.543 inches (13.8mm)
• Housing Bore: 2.878 inches (73.1mm)

Features and Benefits:

• Spring-loaded single-lip design ensures consistent sealing pressure
• Bi-directional lip design accommodates various operating conditions
• Polyacrylate material provides superior resistance to EP (extreme pressure) lubricants
• Low swell characteristics in hydrocarbon-based fluids
• Operating temperature range: -20°F to 300°F (-29°C to 149°C)
• Precision-engineered to meet or exceed OE specifications

National oil seals are manufactured by Federal Mogul (now part of Tenneco's DRiV division) and have earned a reputation for quality and reliability spanning more than 75 years. This seal is designed to keep transmission fluid contained while preventing contaminants from entering critical components, ensuring smooth operation and protecting your transmission investment.