Is a bad motor starter on your car that draws lot of amperage going to wear out alternator more quickly?

Yes, a faulty motor starter that draws excessive amperage will put significantly more strain on the alternator and wear it out prematurely. The alternator is responsible for recharging the battery, and a high-amperage draw from a malfunctioning starter requires the alternator to work harder and longer to compensate. This increased workload generates more heat and stress on the alternator's components, leading to faster degradation and potential failure.