Timken 30204 Manual Transmission Countershaft Bearing

Timken 30204 Manual Transmission Countershaft Bearing

The Timken 30204 is a manual transmission countershaft bearing built to match the dimensional requirements of a wide range of import and domestic applications. With a 20.00 mm inside diameter, 47.00 mm outside diameter, and 14.00 mm cone width, it is sized for precise bearing support in transmission assemblies.

Compatible With Subaru Standard rear outer applications, Mazda B2000 front outer applications, Mazda B2200 front outer applications, Ford Courier front outer applications, and Nissan 510 and 200SX FS5W63A transmission positions. The Timken 30204 is also a direct reference for common interchange numbers used in the same application.

Key Features

• Manual transmission countershaft bearing for transmission service and rebuild work
• 20.00 mm inside diameter and 47.00 mm outside diameter for accurate fitment
• 14.00 mm cone width for proper bearing stack-up in the transmission
• 0.040 cone radius for dimensional consistency
• Cross-references Timken 30204J and 30204J2 for the same application
• Interchanges with SKF BR30204 and National 30204

Detailed Description

Timken 30204 is a tapered roller-style manual transmission countershaft bearing specified by its critical dimensions rather than a generic size description. The 0.787 inch inside diameter, 1.850 inch outside diameter, and 0.551 inch cone width help ensure the bearing matches the transmission shaft and housing requirements during repair or rebuild. This part number is used across several applications, including Subaru Standard rear outer positions, Mazda B2000 and B2200 front outer positions, Ford Courier front outer positions, and Nissan 510 and 200SX FS5W63A front and rear positions. For buyers searching for a Timken 30204 bearing for Subaru, Mazda B2000, Mazda B2200, Ford Courier, or Nissan 510 transmission service, these dimensions and fitment details are the key identifiers.

What It Helps Address

• Excessive transmission bearing noise
• Rough or inconsistent countershaft rotation
• Wear found during manual transmission rebuilds
• Incorrect bearing dimensions during replacement
• Fitment issues in Subaru, Mazda, Ford Courier, and Nissan FS5W63A applications

Installation Notes and Tips

Verify the bearing dimensions against the original part before installation, especially the inside diameter, outside diameter, and cone width. Confirm the transmission code and bearing position, such as rear outer, front outer, front, or rear, to match the correct application. Clean the transmission case and shaft surfaces thoroughly before assembly, and inspect related components for wear that could affect bearing performance. For Nissan 510 and 200SX applications, confirm FS5W63A transmission identification before ordering.

Quality Assurance

Timken is a recognized bearing manufacturer with broad OE and aftermarket coverage. The 30204 part number is supported by established interchange references, including National 30204 and SKF BR30204, which helps confirm application matching during parts selection.