How long do Subaru alternators last?
Subaru alternators typically last between 80,000 to 120,000 miles, or around 5-10 years of normal use. However, the actual lifespan can vary depending on factors like driving conditions, maintenance, and the quality of the alternator itself.
Understanding Subaru Alternator Lifespan
The alternator is a critical component in a Subaru vehicle, responsible for charging the battery and powering the electrical system while the engine is running. Over time, the alternator's internal components can wear down, leading to reduced output and eventual failure.
Several factors can impact the lifespan of a Subaru alternator:
- Driving Conditions: Alternators in vehicles used for frequent towing, off-road driving, or in extreme temperatures may wear out faster than those in more moderate driving conditions.
- Maintenance: Regular maintenance, such as replacing the alternator belt and keeping the electrical system clean, can help extend the alternator's lifespan.
- Alternator Quality: Higher-quality alternators from reputable manufacturers tend to last longer than cheaper, lower-quality alternatives.
It's important to note that the alternator's lifespan can also be affected by other factors, such as the overall health of the vehicle's electrical system and the condition of the battery.
Signs of a Failing Subaru Alternator
As a Subaru alternator begins to fail, there are several warning signs to look out for:
- Dimming Headlights: A failing alternator may not be able to provide enough power to keep the headlights at full brightness.
- Battery Drain: If the battery is not being properly charged by the alternator, it will gradually lose its charge over time.
- Electrical Issues: Problems with the alternator can cause various electrical issues, such as flickering dashboard lights or malfunctioning accessories.
If you notice any of these signs, it's important to have your Subaru's alternator inspected and replaced if necessary to avoid further damage to the electrical system or the battery.
Maintaining Your Subaru Alternator
To help extend the lifespan of your Subaru's alternator, consider the following maintenance tips:
- Regular Inspections: Have your alternator checked during routine maintenance visits to identify any potential issues early on.
- Alternator Belt Replacement: Replace the alternator belt according to the manufacturer's recommended schedule to ensure proper alternator operation.
- Electrical System Cleaning: Keep the alternator and the rest of the electrical system clean and free of corrosion to prevent premature wear.
By following these maintenance practices and being aware of the signs of a failing alternator, you can help ensure your Subaru's electrical system remains in top condition for years to come.
When should I replace my Subaru alternator?
If you see any signs of trouble with starting and idling, go in for service right away to prevent further damage to other parts of your vehicle.
How do I know if my Subaru alternator is bad?
Weak Or Flickering Headlights
Any problem that involves electrical components like lights, audio equipment or climate controls could ultimately be traced to a bad alternator. One of the most common you'll see first is headlights that are dim and may even flicker or fade as you drive.
How long do alternators last on a Subaru?
How Long Do Subaru Alternators Last? Subaru alternators typically last around seven years or more, often exceeding 100,000 miles.
What is the life expectancy of an alternator?
between 80,000 to 150,000 miles
Alternators have an impressive lifespan of seven years–or between 80,000 to 150,000 miles. But be careful that you are not wearing it out prematurely! Here are some common causes of early alternator failure: Alternator quality.
