National JLM104948 Transfer Case Output Shaft Bearing

Overview of National Transfer Case Output Shaft Bearing JLM104948

The National Transfer Case Output Shaft Bearing JLM104948 is engineered for reliable performance in various transfer case applications. Designed to meet precise specifications, this taper bearing cone supports smooth operation in vehicles such as BMW 540i, Ford F-250, and Toyota 4Runner models.

• Compatible with multiple makes including BMW, Ford, Toyota, Land Rover, and more
• Part number JLM104948 ensures exact fitment for transfer case output shafts
• Cone bore diameter of 1.9685 inches (50.0000 mm) for precise seating
• Cone length of 0.8465 inches (21.5010 mm) optimized for transfer case applications
• Cone radius of 0.1200 inches (3.0480 mm) designed for durability and performance

Technical Specifications and Features

This National transfer case output shaft bearing features a taper bearing cone with a cone bore measuring 1.9685 inches (50 mm), providing a secure fit on the output shaft. The cone length of 0.8465 inches (21.5 mm) ensures proper engagement within the transfer case assembly. Additionally, the cone radius of 0.1200 inches (3.05 mm) contributes to the bearing's ability to handle axial and radial loads effectively. These dimensions are critical for maintaining transfer case integrity and smooth drivetrain operation.

Applications and Vehicle Compatibility

The JLM104948 bearing is compatible with a wide range of vehicles, including BMW models such as the 540i, 545i, 645Ci, and M3; Ford trucks like the F-250, F-350, and Excursion; Toyota 4Runner and Land Cruiser; as well as Land Rover Defender 90 and 110, Lexus LX450, Maserati Quattroporte, Pontiac G8, Porsche 911, and Range Rover. This broad fitment makes it suitable for various transfer case output shaft bearing replacements.

Common Issues Addressed by This Bearing

• Eliminates transfer case noise caused by worn or damaged bearings
• Prevents excessive play or shaft misalignment in the transfer case
• Reduces vibration and improves drivetrain smoothness
• Helps avoid premature transfer case wear and potential failure
• Restores proper bearing fitment and load distribution

Installation Notes and Tips

Ensure the transfer case output shaft and bearing surfaces are clean and free of debris before installation. Use appropriate tools to press the bearing cone onto the shaft without causing damage. Verify the cone bore and length dimensions match the original bearing to maintain proper fitment. It is recommended to inspect related transfer case components during installation for wear or damage.

Quality Assurance and Warranty

National bearings are manufactured to meet industry standards for durability and performance. The JLM104948 transfer case output shaft bearing 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.