High Output Alternator for the 2008-2012 Honda Accord 2.4L
The four-cylinder Accord is one of the most popular platforms for sound system upgrades. Its factory alternator is sized for the stock electrical system, so adding an amplifier, subwoofers or extra lighting can push it past what it was designed to deliver. This JS Alternators high output alternator is a direct fit for the stock alternator location and uses a factory-style plug, giving your Accord the charging headroom to run a bigger system without dimming lights or low voltage.
Fits these model years:
- 2008 Honda Accord 2.4L
- 2009 Honda Accord 2.4L
- 2010 Honda Accord 2.4L
- 2011 Honda Accord 2.4L
- 2012 Honda Accord 2.4L
Available output: 250 amp or 320 amp.
Why upgrade? A quick load check
A 1,000-watt RMS amplifier can draw roughly 80 to 100 amps at full output. Add the car's own lighting, cooling fans and electronics, and a factory alternator runs out of headroom quickly, especially at idle. The 250 amp option suits most single-amplifier systems; choose 320 amp for larger builds.
Want more detail? Read our Honda Accord alternator guide.
Fitment:
This is a direct fit high-output alternator for the 2008-2012 Honda Accord 2.4L. Being a direct fit, this alternator fits directly into your stock alternator location.
Plug:
This high-output alternator comes with a factory style plug so that your OEM plug will plug directly into the alternator. Therefore, with an OEM style regulator, it will have a factory voltage set point.
NOTE: If you require charging at a certain voltage setpoint, we offer a selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. Individual regulator options (verify compatibility and charging voltage): 14.8V Internal (Pigtail) | 14.8V Self-Excite | 15.5V Lithium | 16V Lithium | GM 1-Wire
Pulley:
This alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1/2" - 1" shorter belt.
See this Blog Article for assistance in finding the correct shorter belt.
Big 3 Wiring:
When Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the Big 3 Wiring Upgrade Kit (choose a cable length: 4ft 1/0 positive cable kit / 6ft 1/0 positive cable kit / 10.5ft 1/0 positive cable kit / 20ft 2/0 positive cable kit). It is recommended to use 1/0 100% copper wires for the upgrade.
Learn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators
How to Choose the Right High-Output Alternator for Your Car Audio System
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