This sealed replacement bearing is designed for durable, low-noise operation in alternators, starters and small electric motors. Precision manufactured to the 17 mm inner diameter, 40 mm outer diameter and 12 mm width dimensions it offers a direct fit where those dimensions are required. It is suitable for applications referencing Prestolite but please use the Parts Checker to confirm fitment before purchase. The bearing provides smooth rotation and extended service life compared with worn factory bearings.

• Dimensions: 17 mm bore x 40 mm outside diameter x 12 mm width
• Type: sealed deep groove ball bearing for contamination protection
• Material: high grade bearing steel for strength and durability
• Seals: low friction seals to retain lubricant and prevent ingress of dirt
• Applications: alternators, starters, small electric motors and pumps
• Quality: precision ground races for reliable, low vibration performance

Installation is straightforward for routine replacement tasks but professional fitting is recommended if you are uncertain. Check the Parts Checker for vehicle and component compatibility and inspect mating surfaces and housings for wear when replacing a bearing. Choosing a quality sealed bearing helps reduce maintenance and avoids premature failure in engine bay and underbody electrical components.