The Ultimate Guide to Alternator Lifespan How to Prolong Its Service

Some cars may lose an alternator at 40,000 miles (64,374 kilometers) while others may continue to operate well after 100,000 miles (160,934 ... My guess and my experience would be 100k miles for a good one. But they can run much longer. A rebuilt one from a parts house ... might be a few weeks. The alternator should provide enough current to keep the vehicle running even with a bad battery. ... It's impossible to say how long a vehicle will run with a ... Some mechanics, though, say they typically see alternators last about 80,000 miles. Several factors can affect how long an alternator lasts ... Yes, the alternator does charge the battery — if you're driving at highway speeds. Otherwise, the alternator is busy. All the onboard ... How Long Do Car Batteries Last & How Long Does A Car Battery Last Without an Alternator? Cars Simplified•17K views · 19:09 · Go to channel ... Alternators usually last for about 80,000 to 150,000 miles, or at least 7 to 10 years. However, if your alternator is failing, chances are that your car won't ... A running engine alternator output should NOT be below 12.6 V, 12.4 is too low, 11.7 is way too low. Modern cars with current sensors can charge at voltages ... Are you buying new or rebuilt alternators? I would expect new ones to last well over 5 years, but if they're rebuilt it just depends on the ... Answered by Alan Ross. The alternator bearings should not fail at that type of mileage. In fact it is rare for the bearing to fail at all. We ...