National 614088 Clutch Release Bearing

Overview of National 614088 Clutch Release Bearing

The National 614088 clutch release bearing is engineered for reliable performance in select Toyota and Lexus vehicles. Designed as a sealed self-aligning assembly, this bearing ensures smooth clutch operation and durability under demanding driving conditions.

• Sealed self-aligning design for consistent alignment and reduced wear
• Bore diameter of 1.378 inches (35 mm) for precise fitment
• Outside diameter measures 2.992 inches (76 mm) for compatibility with specified models
• Width of 1.750 inches (44.45 mm) providing robust structural integrity
• Inner race radius of 0.040 inches (1.016 mm) to support smooth rotation

Technical Details and Specifications

This clutch release bearing assembly from National features a sealed self-aligning design that helps maintain proper alignment between the clutch fork and pressure plate. The 35 mm bore diameter and 76 mm outside diameter are critical dimensions that ensure compatibility with the clutch systems of various Toyota and Lexus models, including the 4Runner, IS300, Previa, SC300, Supra, T100, Tacoma, and Van. The 1.750 inch width contributes to the bearing's ability to withstand axial loads during clutch engagement and disengagement. The inner race radius of 0.040 inches supports smooth bearing rotation, reducing friction and wear over time.

Compatible Vehicles and Applications

This National clutch release bearing, part number 614088, is compatible with the following makes and models:

• Toyota 4Runner
• Toyota IS300
• Toyota Previa
• Toyota SC300
• Toyota Supra
• Toyota T100
• Toyota Tacoma
• Toyota Van
• Lexus models sharing these platforms

Common Issues Addressed by This Clutch Release Bearing

• Eliminates clutch chatter caused by worn or misaligned bearings
• Reduces noise during clutch engagement and disengagement
• Prevents premature clutch wear due to bearing failure
• Improves clutch pedal feel and responsiveness
• Minimizes risk of clutch slippage related to bearing malfunction

Installation Notes and Tips

When installing the National 614088 clutch release bearing, ensure the clutch fork and pressure plate surfaces are clean and free of debris. Proper lubrication of the bearing contact points is recommended to extend service life. Verify the bearing is correctly seated and aligned to prevent uneven wear. It is advisable to inspect the entire clutch assembly during replacement to identify any additional worn components.

Quality Assurance and Warranty

National manufactures this clutch release bearing to meet OEM specifications, ensuring reliable performance and durability. The sealed self-aligning design helps protect internal components from contaminants, extending bearing life. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product quality.