SKF 6303-2ZJ Alternator Bearing - Drive End or Rear

Reliable Alternator Bearing for Audi, BMW, Dodge, Jeep, and Plymouth

The SKF 6303-2ZJ alternator bearing is engineered to provide consistent performance and durability for a range of vehicles including Audi 318i, BMW 320i, and Dodge Dakota models. Designed with precise dimensions, this bearing supports smooth alternator operation and helps maintain electrical system reliability.

• Inside diameter: 0.669 inches for accurate shaft fitment
• Width: 0.551 inches ensuring compact and efficient design
• Outside diameter: 1.850 inches for secure housing placement
• Double metal shields (2Z) for protection against contaminants
• Compatible with multiple makes and models including Audi 325e, BMW 528i, Jeep CJ5, and Plymouth Duster

Technical Details and Specifications

The SKF 6303-2ZJ alternator bearing features a 0.669-inch inside diameter, which fits precisely on alternator shafts of various vehicles. Its 0.551-inch width allows for a compact installation without compromising load capacity. The 1.850-inch outside diameter ensures a snug fit within the alternator housing, reducing vibration and wear. The 2Z metal shields on both sides protect the bearing from dust and debris, extending service life and maintaining smooth rotation under electrical load conditions.

Compatible Vehicles and Applications

This alternator bearing is compatible with a wide range of vehicles, including but not limited to:

• Audi models such as 318i, 320i, 325e, 4000, and 4000 Quattro
• BMW models including 325e, 528i, 530i, 635CSi, and 735i
• Dodge and Jeep models like Dakota, Ramcharger, and CJ5
• Plymouth models including B100, B150, B200, B250, B300, B350, and Coupe

Common Issues Addressed by the SKF 6303-2ZJ Alternator Bearing

• Eliminates alternator noise caused by worn or damaged bearings
• Prevents alternator shaft misalignment and vibration
• Reduces risk of alternator failure due to bearing seizure
• Improves electrical charging system reliability
• Extends alternator service life by maintaining smooth rotation

Installation Notes and Tips

When installing the SKF 6303-2ZJ alternator bearing, ensure the alternator shaft and housing are clean and free of debris. Use appropriate bearing press tools to avoid damage during installation. Verify the bearing is seated fully and rotates smoothly before reassembling the alternator. Proper lubrication is typically pre-applied, but consult vehicle service manuals for specific requirements.

Quality Assurance and Warranty

SKF is a globally recognized manufacturer known for precision-engineered bearings. The 6303-2ZJ alternator bearing meets industry standards for durability and performance. While specific warranty terms may vary, SKF products generally come with a limited warranty against manufacturing defects. Refer to SKF documentation for detailed warranty information.