SKF B21 Clutch Pilot Bushing

SKF B21 Clutch Pilot Bushing Overview

SKF B21 is a clutch pilot bushing built for precise fit and dependable support in manual transmission service. With a 0.480 inside diameter and 0.670 outside diameter, it is sized for the specified application and helps maintain proper alignment between the transmission input shaft and crankshaft.

Compatible with 1979-1982 Nissan 210 applications, this SKF B21 pilot bushing is a direct-fit service part for manual transmission repair. It is also a practical choice when replacing a worn clutch pilot bushing on a Nissan 210, especially when drivability symptoms point to pilot support wear.

Key Features

• Part number: B21
• Clutch pilot bushing for transmission service
• Inside diameter: 0.480
• Outside diameter: 0.670
• Designed for correct fit in the listed application
• SKF manufacturing standards focused on long service life and safety

Detailed Description

SKF B21 is engineered as a replacement clutch pilot bushing for manual transmission applications that require stable input shaft support. The listed dimensions, including the 0.480 inside diameter and 0.670 outside diameter, are important for proper seating and alignment during clutch operation. For 1979-1982 Nissan 210 models, this part number B21 provides a fitment-specific solution for pilot bushing replacement.

SKF has a long history in bearings and seals, and this part reflects that experience through controlled manufacturing and application-specific sizing. This part cross-references 9759B21 and 32202-18000 for the same application.

What It Helps Fix

• Clutch chatter caused by a worn pilot bushing
• Input shaft misalignment during clutch engagement
• Noise from excessive pilot bushing wear
• Difficulty achieving smooth manual transmission operation
• Premature wear at the transmission input support point

Installation Notes and Tips

Verify the inside and outside diameters before installation to confirm the B21 matches the service requirement. Inspect the crankshaft bore and surrounding components for wear, scoring, or contamination before pressing in the new bushing. For 1979-1982 Nissan 210 clutch service, clean the bore thoroughly and confirm the bushing seats fully and squarely.

Quality Assurance

SKF manufactures this clutch pilot bushing to established quality standards for fit, durability, and safe operation. The brand’s engineering background in bearings and seals supports consistent dimensional control for service work on manual transmission systems.