Life of an alternator?

The life of an alternator depends on various factors such as type of alternator, quality of components, operating conditions, and maintenance practices. However, on average, the life expectancy of an alternator in a passenger car can range from 100,000 to 150,000 miles (approximately 160,000 to 240,000 kilometers) under normal operating conditions. However, it's important to note that some alternators may require replacement sooner due to excessive wear, electrical issues, or failure of internal components. Regular maintenance, such as checking and replacing worn belts, ensuring proper electrical connections, and monitoring charging system voltage, can help extend the life of an alternator. In contrast, factors like exposure to extreme temperatures, rough road conditions, heavy electrical loads, and inadequate battery maintenance can reduce its lifespan. If you experience electrical problems or notice a drop in battery voltage, it's advisable to have your alternator inspected or tested by a qualified mechanic to determine its condition and make any necessary repairs or replacements.