InMotion WT30204 Manual Transmission Countershaft Bearing

Manual Transmission Countershaft Bearing for Subaru, Mazda, Ford, and Nissan

The InMotion WT30204 manual transmission countershaft bearing is built for smooth rotational performance, reduced friction, and stable operation in manual gearboxes. With a cylindrical taper bearing design and durable construction, it supports dependable transmission function in a range of classic import and compact truck applications.

Compatible With 1976-1987 Subaru Standard rear outer, 1979-1984 Mazda B2000 front outer, 1982-1984 Mazda B2200 front outer, 1972-1982 Ford Courier front outer, 1978-1981 Nissan 510 front, 1980 Nissan 200SX front with Nissan FS5W63A transmission, and 1977-1979 Nissan 200SX front.

• Part number WT30204 for manual transmission countershaft service
• Cylindrical taper bearing construction for rotational support
• Inside diameter: 20 mm (0.787 in)
• Outside diameter: 47 mm (1.85 in)
• Set width: 15.3 mm (0.60 in)
• Weight: 0.127 lb
• Cone radius and bearing cup radius: 1

Detailed Product Overview

InMotion WT30204 is a manual transmission countershaft bearing intended for transmission rebuild and repair work where precise bearing dimensions matter. The bearing’s 20 mm inside diameter, 47 mm outside diameter, and 15.3 mm set width make it a direct-fit service part for listed Subaru, Mazda, Ford, and Nissan applications. It is a practical choice for restoring smooth shaft rotation and reducing internal transmission drag in vehicles such as the Subaru Standard, Mazda B2000 and B2200, Ford Courier, Nissan 510, and Nissan 200SX.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Transmission noise caused by worn countershaft bearing surfaces
• Excess friction inside the manual gearbox
• Rough or inconsistent shaft rotation
• Wear-related instability during transmission operation
• Service needs during manual transmission rebuilds

Installation Notes and Tips

Verify bearing dimensions, transmission code, and position before installation. This bearing is listed for rear outer, front outer, and front positions depending on vehicle application, so match the exact fitment row to the transmission being serviced. Clean all mating surfaces, inspect related gears and shafts for wear, and confirm the bearing seats fully before reassembly.

Quality Assurance

InMotion specifies this bearing as a durable, multi-purpose component made from high-quality materials for consistent performance across automotive and industrial use. The WT30204 is engineered for reliable service in the listed manual transmission applications.