Timken 203S Clutch Pilot Bearing

Timken 203S Clutch Pilot Bearing

The Timken 203S clutch pilot bearing is a deep groove ball bearing built for smooth rotation, controlled noise, and stable vibration performance in transmission service. With a 0.669 in. / 17.00 mm inside diameter, 1.575 in. / 40.00 mm outside diameter, and 0.472 in. / 12.00 mm width, it is sized for precise replacement work where bearing fit and lubrication matter.

Key Features

• Deep groove bearing design for consistent rotational support in clutch and transmission applications
• Timken 203S dimensions: 17.00 mm ID, 40.00 mm OD, 12.00 mm width
• Dimensionally interchangeable with competitor bearings that follow ISO standards
• Built with tight tolerances and a refined surface finish for smooth operation under proper lubrication
• Engineered to meet Timken quality standards for drivetrain service

Detailed Description

Timken 203S is a clutch pilot bearing designed for transmission service where accurate shaft support is critical. The deep groove construction helps maintain quiet operation and stable performance, while the bearing’s ISO-based dimensions support direct replacement in applications that call for a 17 mm inside diameter and 40 mm outside diameter. This makes the Timken 203S a practical choice for clutch pilot bearing replacement on vehicles such as Honda Civic and other applications that specify this size.

Timken’s bearing design focuses on controlled noise and vibration, plus dimensional consistency for dependable fit. This part cross-references 6203Z and 6203ZJ for the same application.

What It Helps Solve

• Clutch noise caused by a worn or rough pilot bearing
• Transmission vibration from excessive bearing play
• Hard shifting related to poor clutch shaft support
• Premature wear from a bearing that no longer holds proper tolerance
• Fitment issues when replacing an ISO-standard 17 x 40 x 12 bearing

Installation Notes and Tips

Verify the bearing dimensions against the removed part before installation. Clean the bore and shaft surfaces thoroughly, and inspect the clutch and transmission components for wear that could affect bearing life. Proper lubrication and correct seating are important for smooth operation. For fitment-based searches, this part is commonly sought for Honda Civic clutch pilot bearing replacement and similar transmission bearing applications. Timken 203S is also searched as a replacement bearing for Honda Civic manual transmission service.

Quality Assurance

Timken deep groove ball bearings are manufactured to rigorous worldwide quality standards and follow ISO dimensional standards for interchangeability with comparable parts. The Timken 203S is built to support consistent performance in drivetrain service when installed in the correct application.