National Oil Seal 711090 Axle Differential Seal

The National Oil Seal 711090 is a precision-engineered axle differential seal designed to provide reliable sealing performance for rear differential applications. This seal effectively prevents gear oil leakage from the differential housing while keeping harmful contaminants such as dirt, moisture, and debris out of critical axle components.

Key Features:

• Spring-loaded multi-lip design for superior sealing performance
• Constructed from durable polyacrylate material for excellent chemical resistance
• Temperature range: -20°F to 300°F (-29°C to 149°C)
• Protection from extreme pressure (EP) lubricants
• Low swell characteristics in hydrocarbon fluids
• Dynamic Edge technology generates pumping action to prevent contaminant intrusion

National has been manufacturing premium sealing solutions for over 75 years, building a reputation as one of the most respected names in the automotive aftermarket. This seal meets or exceeds original equipment specifications and delivers quality, reliable performance for professional and DIY repairs. The advanced multi-lip design with spring loading ensures a tight, leak-free seal that maintains optimal differential operation and extends the service life of axle components.