ACDelco 13553838 Alternator Assembly - 155 Amp 6-Groove OE Replacement

The ACDelco 13553838 Alternator Assembly is a GM Genuine Parts original equipment alternator designed to restore reliable electrical power generation to your vehicle. This alternator provides 155 amps of output capacity to handle modern electrical loads while maintaining efficient battery charging during engine operation.

Key Features:

• 155-amp output capacity for high electrical demand applications
• 6-groove serpentine pulley included for direct OE fitment
• 100% new components engineered to GM specifications
• Designed, tested, and validated by GM engineers for precise fit
• High-quality bearings with high-temperature lubricant and double-lipped seals
• Rotors and stators electronically tested with secondary insulating coating
• All mounting surfaces and contact points gauged for proper installation
• Built to ISO quality standards with rigorous durability testing

This alternator assembly is newly manufactured as an exact replacement for your GM vehicle's original equipment. GM Genuine Parts (formerly sold as ACDelco GM Original Equipment) are backed by General Motors and incorporate the latest materials and technologies for improved performance and service life. OEM part number 13553838 supersedes part number 13520809.