SKF 6305-J Alternator Bearing

SKF 6305-J Alternator Bearing Overview

The SKF 6305-J alternator bearing is a precision ball bearing used in charging-system applications where smooth rotation and low friction matter. With an inside diameter of 0.984 in, an outside diameter of 2.440 in, and a width of 0.669 in, this bearing is sized for specific alternator rebuild and repair needs.

SKF 6305-J is a direct-fit option for a wide range of import and domestic applications, including Chevrolet Tracker, INFINITI G20, Nissan Sentra, and Nissan Pathfinder alternator service.

Key Features

• Inside diameter: 0.984 in
• Outside diameter: 2.440 in
• Width: 0.669 in
• Ball bearing design for low-friction rotation
• Built to SKF manufacturing standards for bearing applications
• Used in alternator repair and charging-system service

Detailed Product Description

SKF developed its bearing technology over more than a century of engineering experience, beginning with the first self-aligning ball bearing in 1907. The 6305-J alternator bearing reflects that background with a design focused on smooth motion, load handling, and long service life in demanding electrical systems. This part number, 6305-J, is commonly selected when servicing alternators on vehicles such as the Chevrolet Tracker, INFINITI G20, and Nissan Sentra.

This part cross-references 0-00-325220 and 0040005 for the same application.

What It Helps Fix

• Alternator bearing noise such as whining or grinding
• Rough or uneven alternator pulley rotation
• Charging-system drag caused by worn bearing surfaces
• Alternator rebuilds on vehicles with serviceable bearing assemblies
• Vibration or play in the alternator shaft area

Installation Notes and Tips

Verify bearing dimensions before installation and compare the old bearing to SKF 6305-J to confirm the correct alternator service part. Clean the alternator housing, inspect the shaft and related components for wear, and press the bearing in squarely to avoid damage. For fitment-specific service, confirm the application against the vehicle and alternator configuration before assembly.

• Fits 1998-2003 Chevrolet Tracker, Rear
• Fits 1999 INFINITI G20, N/A
• Fits 1991-1996 INFINITI G20, N/A
• Fits 1999 Nissan Sentra, Right
• Fits 1986-1995 Suzuki Samurai, N/A
• Fits 1986-1992 Nissan D21, Center
• Fits 1987-1992 Nissan Pathfinder, Center
• Fits 1980-1986 Nissan 720, Center
• Fits 1980-1982 Nissan 210, Front
• Fits 1969-1972 Chevrolet Blazer, Drive End, 62 Amp.
• Fits 1968-1972 Chevrolet C10 Suburban, Drive End, 62 Amp.
• Fits 1968-1972 Chevrolet C20 Suburban, Drive End, 62 Amp.
• Fits 1968-1972 Chevrolet K10 Suburban, Drive End, 62 Amp.
• Fits 1968-1972 Chevrolet K20 Suburban, Drive End, 62 Amp.
• Fits 1970-1972 GMC Jimmy, Drive End, 62 Amp.
• Fits 1967-1970 GMC G15/G1500 Van, Drive End, 62 Amp.
• Fits 1967-1970 GMC G25/G2500 Van, Drive End, 62 Amp.
• Fits 1964-1966 GMC G1000 Series, Drive End, 62 Amp.

Quality Assurance

SKF is a long-established bearing manufacturer known for precision engineering and consistent production standards. The 6305-J alternator bearing is manufactured to support reliable operation in electrical and charging-system service.