FAG 6303 Generator Drive End Bearing - Rear or Rear Outer

Generator Drive End Bearing for Charging Systems

The FAG 6303 generator drive end bearing is a precision bearing for alternator and generator support in electrical charging systems. With a 17 mm inside diameter and 47 mm outside diameter, it is sized for applications that require stable shaft support and consistent rotation.

Built under FAG’s bearing manufacturing expertise, this 6303 bearing is specified for generator drive end use and is listed for select Ford and Chrysler applications, including 1957-1963 Ford F-100, Ford F-250, Ford F-350, and 1958-1959 Chrysler New Yorker rear positions.

Key Features

• Part number: FAG 6303
• Generator drive end bearing for charging system service
• 17 mm inside diameter and 47 mm outside diameter
• Approximate dimensions: 14 mm height and 13.995 mm length
• Also listed with bearing dimensions of 16.993 mm ID and 46.99 mm OD
• Fits select rear-position Ford and Chrysler applications
• Cross-references AMS Automotive 6303 and SKF 6303-J for the same application

Detailed Description

The FAG 6303 is a generator drive end bearing used in electrical, charging, and starting systems where accurate shaft support matters. Its dimensional profile makes it a direct match for applications calling for a 6303-style bearing, and the listed fitment includes 1957-1963 Ford F-100 rear with 40 Amp alternator and Autolite/Prestolite type equipment, 1957-1963 Ford F-250 rear, 1957-1963 Ford F-350 rear, and 1958-1959 Chrysler New Yorker rear. For buyers searching for a Ford F-100 alternator bearing or a Chrysler New Yorker generator bearing, the FAG 6303 is a relevant OE-style service part.

FAG develops and produces roller bearings, spherical bearings, and plain bearings for a wide range of industrial and automotive uses, and this part reflects that bearing-focused engineering background. The 6303 part number is also commonly referenced in interchange listings, including Autolite 303 and Timken 303BB.

What This Bearing Helps Address

• Alternator or generator shaft noise from worn bearing surfaces
• Excessive play in the drive end of the charging unit
• Rough rotation during charging system service
• Premature wear in rear-position Ford and Chrysler generator applications
• Restoration needs for 1957-1963 Ford F-100, F-250, and F-350 charging systems

Installation Notes and Tips

Verify the bearing dimensions against the original unit before installation, especially the 17 mm inside diameter and 47 mm outside diameter. Confirm the generator or alternator style, since the fitment notes include Autolite/Prestolite type equipment on select Ford F-100 applications. Proper press-fit handling and clean assembly surfaces help maintain bearing alignment during service.

Quality Assurance

FAG is a bearing manufacturer known for producing components across automotive and industrial applications. The 6303 bearing is built to the dimensional requirements listed above and is cataloged for specific vehicle fitments, including Ford F-100, Ford F-250, Ford F-350, and Chrysler New Yorker rear applications.