MPA Electrical 7857607N Alternator

Reliable 12V Alternator for Buick, Chevrolet, and More

The MPA Electrical New 7857607N alternator is designed to provide consistent 12-volt electrical output for a range of GM vehicles. Engineered to meet the demands of models like the Chevrolet Cavalier and Pontiac Sunbird, this alternator ensures stable charging and starting performance.

Key Features of the MPA Electrical 7857607N Alternator

• Voltage: 12.0 volts for standard automotive electrical systems
• Amperage Rating: 105 amps to support vehicle electrical loads
• Rotation Direction: Clockwise (right) for proper engine compatibility
• Fan Type: External fan for effective cooling during operation
• Pulley Included: Yes, with 6 grooves designed for serpentine belts
• Plug Clock Rear View Main Mounting Ear positioned at 6 o'clock
• Internal voltage regulator for consistent output regulation
• Compatible with Delco family alternator systems

Detailed Description of the 7857607N Alternator

This MPA Electrical New alternator, part number 7857607N, is built to fit a variety of General Motors vehicles including Buick Century, Cadillac Cimarron, Chevrolet Lumina APV, Oldsmobile Cutlass Ciera, and Pontiac Trans Sport. The alternator features a clockwise rotation direction and an external fan type, which helps maintain optimal operating temperatures. Its internal regulator simplifies installation and maintenance by eliminating the need for an external regulator. The included pulley has six grooves designed for serpentine belts, ensuring compatibility with the vehicle’s drive system. The mounting ear is positioned at 6 o'clock when viewed from the rear, aligning with factory specifications for proper fitment.

Applications and Common Issues Addressed

• Restores charging system functionality in Buick Century and Chevrolet Cavalier vehicles
• Replaces failing alternators causing battery drain or electrical system malfunctions
• Solves issues related to inconsistent voltage output in Pontiac Sunbird and Oldsmobile Cutlass Cruiser
• Addresses overheating problems with external fan design for improved cooling
• Ensures proper serpentine belt engagement with included 6-groove pulley

Installation Notes and Tips

When installing the MPA Electrical 7857607N alternator, verify the clockwise rotation direction matches the vehicle’s engine requirements. Confirm the mounting ear position at 6 o'clock aligns with the existing bracket. Use the included pulley designed for serpentine belts to maintain proper belt tension and alignment. Since the alternator features an internal regulator, no additional external voltage regulation components are necessary. Always disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty Information

MPA Electrical’s New product line offers alternators manufactured to meet OEM specifications for reliable performance. This alternator undergoes rigorous testing to ensure voltage stability and amperage output of 105 amps. While specific warranty details are not provided, MPA Electrical products typically adhere to industry standards for quality and durability.