National 15123 Manual Transmission Input Shaft Bearing - Front Inner, Rear or Rear Inner

Overview of National 15123 Manual Transmission Input Shaft Bearing

The National 15123 manual transmission input shaft bearing is engineered for reliable performance in various vehicle models including Chrysler, Jaguar, Mazda, Mercury, Rover, and Toyota. This taper bearing cone is designed with precise dimensions to ensure proper fit and function in manual transmission systems.

• Part Number: 15123
• Brand: National
• Category: Transmission Bearings
• Type: Manual Transmission Input Shaft Bearing (Taper Bearing Cone)
• Cone Bore Diameter: 1.2500 inches (31.75 mm)
• Cone Length: 0.7500 inches (19.05 mm)
• Compatible with multiple makes and models including Chrysler Newport, Jaguar XJ6, Mazda 323, Mercury Tracer, Rover 3500, and Toyota Starlet

Technical Specifications and Design Details

The National 15123 bearing features a taper bearing cone with a cone bore diameter of 1.2500 inches (31.75 mm) and a cone length of 0.7500 inches (19.05 mm). These precise measurements are critical for maintaining the correct alignment and smooth rotation of the manual transmission input shaft. The bearing is manufactured to meet OEM standards, ensuring durability and consistent performance under typical driving conditions.

Compatible Vehicles and Applications

This manual transmission input shaft bearing is compatible with a range of vehicles, including but not limited to Chrysler Newport and New Yorker, Jaguar XJ6 and XJ12, Mazda 323, Mercury Tracer and Town & Country, Rover 3500, and Toyota Pickup and Starlet. It is specifically designed to replace worn or damaged input shaft bearings in these models, helping to restore proper transmission function.

• Eliminates input shaft play and vibration
• Reduces transmission noise caused by bearing wear
• Prevents premature transmission component damage
• Restores smooth gear engagement
• Addresses issues related to bearing cone wear or failure

Installation Notes and Tips

When installing the National 15123 bearing, ensure the transmission input shaft and bore are clean and free of debris. Proper lubrication of the bearing surfaces is essential to prevent premature wear. Use appropriate tools to press the bearing cone into place without causing damage. Verify fitment compatibility with your specific vehicle make and model before installation.

Quality Assurance and Warranty Information

National transmission bearings are manufactured to meet industry standards for quality and reliability. The 15123 bearing undergoes rigorous inspection 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 performance.