Quality-Built 109-12104 HD Remanufactured Heavy-Duty Alternator

The Quality-Built 109-12104 is a heavy-duty (HD) remanufactured alternator engineered to meet or exceed original equipment specifications. Designed for demanding applications, this alternator delivers reliable charging performance and long-term durability for vehicles that require a high-output, heavy-duty charging solution.

Remanufacturing Process & Quality Standards:

• Housings are blast-cleaned, with all mounting threads inspected and re-tapped for precise fitment and consistent torque
• Rotors are electronically tested and coated with high-dielectric insulation for maximum durability and charging performance
• Stators are electronically tested for maximum insulation quality and phase balance
• Bearings are inspected or replaced new, packed with high-temperature grease to reduce heat and friction
• Rectifiers are 100% load-tested to ensure durability and reliable charging output
• Brushes and springs are new for extended service life and consistent performance
• Slip rings are precision-polished for maximum electrical output
• Pulleys are plated or powder-coated for corrosion resistance
• Voltage regulators are tested to ensure correct operating voltage
• Terminals are OE-quality with high-temp insulators for secure, reliable connections

Quality-Built alternators are manufactured under strict QS-9000 quality guidelines — the highest standard achievable for automotive parts suppliers — and are produced in ISO/TS 16949 certified facilities using durability testing, root cause analysis, and lean manufacturing principles. Every unit undergoes end-of-line testing before leaving the facility.