National 41257 Wheel Seal - Front Inner

National 41257 Wheel Seal Overview

The National 41257 wheel seal is designed for reliable sealing performance in driveline and axle applications. Engineered with durable leather material, this oil seal is compatible with select Dodge models including the Challenger, Dart, and Lancer, ensuring proper fit and function.

• Inside diameter: 1.500 inches (38.100 mm)
• Outside diameter: 1.993 inches (50.620 mm)
• Housing bore: 1.989 inches (50.520 mm)
• Width: 0.250 inches (6.350 mm)
• Material: Leather for effective oil sealing
• Part type: 4l oil seal from the 40000 series

Detailed Product Description

The National 41257 wheel seal is crafted from high-quality leather, providing a durable barrier against oil leaks in the driveline and axle assembly. With precise dimensions including a 1.500 inch inside diameter and a 1.993 inch outside diameter, this seal fits securely within the housing bore of 1.989 inches. The 0.250 inch width ensures a tight seal around the shaft, preventing contamination and maintaining lubrication integrity. This part is part of National's 40000 series, known for consistent manufacturing standards and reliable sealing solutions.

Compatible Vehicles and Applications

This wheel seal is compatible with various Dodge vehicles, specifically the Challenger, Dart, and Lancer models. It is designed to replace worn or damaged seals in these vehicles' driveline and axle systems, helping to maintain optimal performance and prevent oil leakage.

• Prevents oil leaks in Dodge Challenger driveline
• Seals axle components in Dodge Dart
• Maintains lubrication integrity in Dodge Lancer
• Reduces contamination ingress in axle assemblies
• Replaces worn or damaged wheel seals

Installation Notes and Tips

When installing the National 41257 wheel seal, ensure the housing bore and shaft are clean and free of debris. Proper alignment during installation is critical to avoid seal damage. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the original part to maintain effective sealing.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 41257 part number undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.