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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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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