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Infiniti High Output Alternators

Are you looking for a high-quality, easy plug and play installation, durable alternator for your Infiniti? Check out our variety of excellent Infiniti alternators. We have the ideal Infiniti alternator for your automobile, whether you need one for your car audio, lighting, racecar or daily driver.
The most recent technology is used in our alternators to make sure you get the most out of your Infiniti’s electrical system. You will be sure that your automobile will always be operating at its best, thanks to JS Alternators high power voltage and reliable performance. Don't wait to acquire a new high output alternator and guarantee that your Infiniti is always operating at its most effective.

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-22%
2008-2012 Infiniti G25 250 - 400amp Alternator. 2008-2012 Infiniti G25 250 - 400amp Alternator. Quick View
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2008-2012 Infiniti G25 250 - 400amp Alternator

$439.00 $339.00
11315-250-12
All Infiniti High Output Alternators
~Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2003-2010 Infiniti M45 250 to 400amp Alternator. 2003-2010 Infiniti M45 250 to 400amp Alternator. Quick View
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2003-2010 Infiniti M45 250 to 400amp Alternator

$469.00 $369.00
11316-250-13
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
1994-2006 Infiniti Q45 250-400amp Alternator. 1994-2006 Infiniti Q45 250-400amp Alternator. Quick View
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1994-2006 Infiniti Q45 250-400amp Alternator

$469.00 $369.00
11394-250-11
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2002-2004 Infiniti I35 250-400amp Alternator. 2002-2004 Infiniti I35 250-400amp Alternator. Quick View
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2002-2004 Infiniti I35 250-400amp Alternator

$469.00 $369.00
11934-250-13
All Infiniti High Output Alternators
R5equires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2008-2013 Infiniti G37 250-400amp Alternator - JS Alternators 2008-2013 Infiniti G37 250-400amp Alternator - JS Alternators Quick View
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2008-2013 Infiniti G37 250-400amp Alternator

$469.00 $369.00
11340-250-555
All Infiniti High Output Alternators
~Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2006-2010 Infiniti M35 250-400amp Alternator - JS Alternators 2006-2010 Infiniti M35 250-400amp Alternator - JS Alternators Quick View
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2006-2010 Infiniti M35 250-400amp Alternator

$469.00 $369.00
11340-250-542
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2008-2012 Infiniti EX35 250-400amp Alternator - JS Alternators 2008-2012 Infiniti EX35 250-400amp Alternator - JS Alternators Quick View
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2008-2012 Infiniti EX35 250-400amp Alternator

$469.00 $369.00
11340-250-99
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2003-2008 Infiniti G35 250-400amp Alternator - JS Alternators 2003-2008 Infiniti G35 250-400amp Alternator - JS Alternators Quick View
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2003-2008 Infiniti G35 250-400amp Alternator

$469.00 $369.00
11340-250-66
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2004-2015 Infiniti QX56 EX35 250-400amp Alternator - JS Alternators 2004-2015 Infiniti QX56 EX35 250-400amp Alternator - JS Alternators Quick View
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2004-2015 Infiniti QX56 EX35 250-400amp Alternator

$469.00 $369.00
11340-250-654
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2003-2011 Infiniti FX35 250-400amp Alternator - JS Alternators 2003-2011 Infiniti FX35 250-400amp Alternator - JS Alternators Quick View
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2003-2011 Infiniti FX35 250-400amp Alternator

$469.00 $369.00
11340-250-147
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2002-2005 Inifniti Q45 250-400amp Alternator - JS Alternators 2002-2005 Inifniti Q45 250-400amp Alternator - JS Alternators Quick View
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2002-2005 Inifniti Q45 250-400amp Alternator

$469.00 $369.00
11009-250-21
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2003-2008 Infiniti FX45 250-400amp Alternator - JS Alternators 2003-2008 Infiniti FX45 250-400amp Alternator - JS Alternators Quick View
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2003-2008 Infiniti FX45 250-400amp Alternator

$469.00 $369.00
11009-250-250
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2001-2003 Infiniti QX4 250-400amp Alternator - JS Alternators 2001-2003 Infiniti QX4 250-400amp Alternator - JS Alternators Quick View
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1998-2003 Infiniti QX4 250-400amp Alternator

$469.00 $369.00
11052-250-052
All Infiniti High Output Alternators
~Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2003-2008 Infiniti FX35 250-400amp Alternator - JS Alternators 2003-2008 Infiniti FX35 250-400amp Alternator - JS Alternators Quick View
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2003-2008 Infiniti FX35 250-400amp Alternator

$469.00 $369.00
11052-250-13
All Infiniti High Output Alternators
~Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2004-2007 Infiniti QX56 250-400amp Alternator - JS Alternators 2004-2007 Infiniti QX56 250-400amp Alternator - JS Alternators Quick View
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2004-2007 Infiniti QX56 250-400amp Alternator

$469.00 $369.00
11120-250-5
All Infiniti High Output Alternators
~Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
2006-Infiniti Q45 250-400amp Alternator - JS Alternators 2006-Infiniti Q45 250-400amp Alternator - JS Alternators Quick View
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2006-Infiniti Q45 250-400amp Alternator

$469.00 $369.00
11316-250-31
All Infiniti High Output Alternators
Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly called 6 phase. They produce more output at idle and...
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-21%
JS Alternators Infiniti High Output Amp Alternator Quick View
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2014-2022 Infiniti Q50 320-400amp alternators

$579.00 $459.00
21100-320
All Infiniti High Output Alternators
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...
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Customer Reviews

Look and Runs Amazing

Brandon Manis, April 2022

Every single audio build I’ve done always has a JS alternator. Great customer service, amazing pricing, very fast shipping, got my alternator within a week and it’s a pretty rare car so I was surprised at the speed they had my alternator built and shipped out to me. Amazing company and I will continue to use them and represent them on all of my builds, highly recommended and very good quality product.😌 (also their powder coating is perfection)

Very Nice Alternator

Paul Nelson, March 2022

I will not consider going anywhere else for my high output alternators. 10.5kw of bass amps on my daily driver and I do not lose even a thenth of a volt while driving at full tilt! Two vehicles and two alternators and zero problems with the alternators, customer support, or shipping times. Customer for life here! Do not hesitate. 👍

Super Impressed

Kino Hicks, April 2021

Just got mine and super impressed. The customer service was very helpful and I would encourage anyone who needs a high output alternator to use these guys!!!

They're so great they even shipped out my made to order alternator on New Year’s Eve.

Petey Parado, May 2021

Ordered my alternator a week before Christmas 2020.They emailed to confirm my address in Hawaii. I emailed back and they responded quickly.There so great they shipped out my made to order alternator on New Year’s Eve. I received it on the 4 of January 2021. It came with everything I needed. Shorter bet I got from local auto parts store.your JS ALTERNATOR made my sound system very happy voltage stays above 14v. THANKS,Jonathan from Kauai Hawaii..

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