What amp alternator is on a 5.9 Cummins?
The alternator on a 5.9 Cummins engine is a critical component that ensures your vehicle's electrical systems function properly. Whether you're driving a Dodge Ram truck or another vehicle equipped with this legendary diesel engine, understanding the alternator's specifications is essential for maintenance and upgrades.
Standard Alternator Amperage for a 5.9 Cummins
The 5.9 Cummins engine, commonly found in Dodge Ram trucks from 1989 to 2007, typically comes equipped with alternators rated between 120 to 136 amps in stock configurations. However, the exact amperage can vary depending on the model year and the specific vehicle's electrical demands.
Why Alternator Amperage Matters
The alternator's amperage rating determines how much electrical power it can supply to your vehicle's systems. A higher amperage alternator is beneficial if you have additional electrical accessories or upgrades, such as:
- High-powered audio systems
- Off-road lighting
- Winches
- Aftermarket electronics
If your alternator cannot meet the electrical demands, it can lead to battery drain and potential system failures.
Upgrading the Alternator on a 5.9 Cummins
For those who require more power, aftermarket alternators with higher amperage ratings, such as 180 amps or even 220 amps, are available. These upgrades are particularly useful for trucks used in heavy-duty applications or equipped with numerous electrical accessories.
How to Determine Your Alternator's Amperage
If you're unsure about the amperage of your current alternator, you can check it in the following ways:
- Look for a label or stamp on the alternator itself, which often includes the amperage rating.
- Consult your vehicle's owner's manual for specifications.
- Contact a trusted auto repair shop, like Kevin's Autos, for professional assistance.
Conclusion
Understanding the alternator's amperage on your 5.9 Cummins is essential for maintaining your vehicle's performance and reliability. Whether you're sticking with the stock alternator or considering an upgrade, ensure that it meets your vehicle's electrical demands. For expert advice and installation, don't hesitate to reach out to a professional auto service provider.
Frequently Asked Questions
How many amps is a factory alternator?
An OEM alternator should put out about 65 amperes for most cars. More powerful alternators are available up to about 300 amperes.
What is the difference between 12V and 24V alternator?
12V systems require massive wires when pulling large loads because the current (amps) are higher. As we have already learned, 24V systems reduce the current or amps two times, then a downside of a 12V system is the amperage is double that of a 24V system at the same power.
Is 250 amp alternator enough?
Most stock alternators are in the 80-120 ampere range and can only supply about 40% to 50% of that for non-automotive uses like amplifiers. A 250 or 300 ampere aftermarket high output alternator should provide enough power for all your car's systems and your high-powered stereo too.
How many cranking amps to start a diesel engine?
For diesel engines, you need: 250 to 400 amps for a 4 cylinder. 400 to 500 amps for a 6 cylinder. 500 to 700 amps for an 8 cylinder.
Can I put a higher amperage alternator in my truck?
The voltage will stay the same and you won't damage your system by having a more powerful alternator. If you decide to upgrade your alternator, you'll need to ensure that all the cables have enough thickness to handle the increase in current.
How many amps is f250 alternator?
2009-2010 Ford F-250 Super Duty 5.4L 250-320-370-400amp High Output Alternator | JS Alternators.
What is the output voltage of a 24V truck alternator?
A stable battery voltage (Channel A) around 28.3 V, with no spikes or significant ripples. An AC current waveform (Channel B) with uniform peaks and troughs having a DC average around 27 A.
How can I tell what amp my alternator is?
It's important to understand how much power an alternator can provide so that it doesn't become overloaded. And cause damage to other components in your vehicle.
How many amps does a diesel truck alternator put out?
Duramax engines (even the older ones), for instance, have 105- and 130-amp alternators, which is fine for just about any electrical draw you'll encounter.
How many amps is a 24V alternator?
Alternators available for 24volt systems typically tap out at 500 to 600 amps. There is nothing currently used in the market that has higher output than this.
