National 9316 Differential Pinion Seal - Front Outer or Rear Outer

National 9316 Differential Pinion Seal Overview

The National 9316 differential pinion seal is engineered to provide reliable sealing performance for a range of vehicles including Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain differential integrity by preventing oil leaks and contamination.

• Inside diameter: 1.875 inches (47.630 mm)
• Outside diameter: 3.165 inches (80.390 mm)
• Thickness/width: 0.695 inches (17.650 mm)
• Housing bore diameter: 3.160 inches (80.260 mm)
• Material: Polyacrylate for enhanced durability and resistance
• Redicoat surface treatment for improved wear resistance
• Series: 9000, Type: 72

Technical Details and Specifications

The National 9316 differential pinion seal features a precise fit with a 1.875-inch shaft diameter and an outside diameter of 3.165 inches, ensuring compatibility with specific driveline components. The polyacrylate material offers excellent resistance to heat, oil, and wear, making it suitable for heavy-duty applications. The Redicoat treatment enhances the seal’s longevity by reducing friction and wear during operation. This seal is part of National’s 9000 series, designed for dependable sealing in demanding automotive environments.

Compatible Vehicles and Applications

This differential pinion seal is compatible with a variety of Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth vehicles. It fits models such as Chevrolet Blazer, C10 Suburban, Corvette, Dodge Ram 2500 and 3500, Ford F-100, F-250, F-350, and Econoline series, GMC Jimmy, and Jeep Viper among others. The National 9316 is ideal for use in driveline and axle assemblies where maintaining oil containment and preventing contamination is critical.

• Prevents oil leaks in differential pinion shafts
• Protects against dirt and debris intrusion
• Maintains proper lubrication within the differential
• Reduces wear on driveline components
• Helps avoid costly differential repairs

Installation Notes and Tips

When installing the National 9316 differential pinion seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip or the Redicoat surface. Verify the shaft diameter matches the 1.875-inch specification for proper fit. Lubricate the seal lip lightly with differential oil before installation to reduce initial wear. Proper installation will help maintain seal integrity and extend service life.

Quality Assurance and Warranty

National manufactures the 9316 differential pinion seal to meet stringent quality standards. The use of polyacrylate material and Redicoat treatment ensures durability and reliable performance under typical operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects, providing confidence in the product’s quality and longevity.