1994-2004 GMC S-15 250-320-370-400-425amp Alternator

$709.00 $559.00
8199_388912725-44364883-350158357
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1999-2004 GMC Sierra 250-320-370-400-425amp Alternator

$709.00 $559.00
8206_213860403-16603278-724891671
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2001-2005 GMC Full size truck 250-320-370-400-425amp Alternator

$709.00 $559.00
8206_472881320-31578044-328323511
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1996-2004 GMC Suburban 250-320-370-400-425amp Alternator

$709.00 $559.00
8206_650179715-991487591-593757719
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1996-2012 GMC Savana Van w/ 4 Pin Oval Plug 250-320-370-400amp Alternator

$709.00 $559.00
8206_652066632-589687737-135836921
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1996-2004 GMC Full size truck 250-320-370-400-425amp Alternator

$709.00 $559.00
8206_762149595-176355263-921975059
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1994-2004 GMC Safari 250-320-370-400amp Alternator

$709.00 $559.00
8206_837080023-154741769-397542010
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2003-2006 GMC Envoy 250-320-370-400-425amp Alternator

$709.00 $559.00
8206_885531532-9163486-56000609
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1994-2004 GMC S-15 250-320-370-400amp Alternator

$709.00 $559.00
8206_934179930-542513607-661151758
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1996-2004 GMC Yukon 250-320-370-400-425amp Alternator

$709.00 $559.00
8206_961487766-411689012-270418083
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2005-2020 GMC Suburban 250-320-370-400-425amp Alternator

$709.00 $559.00
8302_79190786-381436748-343697568
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2005-2018 GMC Savana Van w/ 2 pin Oval plug 250-320-370-400-425amp Alternator

$709.00 $559.00
8302_88493447-32596747-330263896
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2005-2020 GMC Sierra Full size truck 250-320-370-400-425amp Alternator

$709.00 $559.00
8302_543111113-535538290-679180466
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2005-2020 GMC Yukon 250-320-370-400-425amp Alternator

$709.00 $559.00
8302_671242676-27674572-94009558
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2007-2009 GMC Envoy 250-320-370-400-425amp Alternator

$709.00 $559.00
8302_823057566-96323618-907250106
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2006-2020 GMC Sierra 250-320-370-400-425amp Alternator

$709.00 $559.00
8302_957347029-657213587-383100205
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2007-2008 GMC Envoy 250-320-370-400-425amp Alternator

$759.00 $609.00
8302-425-52
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2002-2006 GMC Envoy 4.2L 250-320-370-400-425amp Alternator

$439.00 $339.00
8497-250-4
GMC
2002-2006 GMC Envoy 4.2L 250-320-370-400-400amp Alternator Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than...

1987-2004 GMC Yukon 250-320-370-400-425amp Alternator

$709.00 $559.00
81657_338227373-770190282-814229801
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1987-2004 GMC Suburban 250-320-370-400-425amp Alternator

$709.00 $559.00
81657_371518866-45878610-408572586
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1987-1995 GMC Full size truck 250-320-370-400-425amp Alternator

$709.00 $559.00
81657_439221022-996235133-14887753
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1990-1993 GMC Safari 250-320-370-400amp Alternator

$709.00 $559.00
81657_479714357-347333732-351602137
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2010-2017 GMC Terrain 250, 320, 370, 400amp Alternator

$549.00 $429.00
11252-320-550
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2007-2013 GMC Acadia 250amp Alternator

$549.00 $429.00
11252-320-779
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2013-2015 GMC Terrain 250, 320, 370, 400amp Alternator

$549.00 $429.00
11252-320-286
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

1988-1993 GMC S-15 250-320-370-400amp Alternator

$709.00 $559.00
81657_937015965-281735950-427509349
GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

GM Racing High Output Alternators 170, 250, 320amp

$309.00 $259.00
123456-170a
Chevrolet GMC Racing 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...

2004-2006 GMC Canyon 250-320-370-400-400amp High Output Alternators

$609.00 $479.00
11047-370-4
GMC
2004-2006 GMC Canyon 2.8, 3.5L 2004-2006 Chevrolet Colorado 2.8, 3.5L ~Requires approximately half inch shorter belt and big3 wiring upgrade. Hairpin units are commonly...

2007-2012 GMC Canyon 250-320-370-400-400amp High Output Alternators

$609.00 $479.00
11148-370-22
GMC
2007-2012 GMC Canyon 2.9, 3.7L 2007-2012 Chevrolet Colorado 2.9, 3.7L 250-320-370-400-400amp High Output Alternators ~Requires approximately half inch shorter belt and big3 wiring upgrade....

2008-2017 Chevrolet Equinox 250, 320, 370, 400amp alternators

$439.00 $339.00
11250-250-22
Chevrolet GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2013-2020 Chevrolet Impala 2.5L, Malibu 2.0L, Cadillac ATS, CTS, 250, 320amp alternators

$439.00 $339.00
11682-250-11
Buick Cadillac Chevrolet GMC
Hairpin units are commonly called 6 phase. They produce more output at idle and are more efficient than a conventional alternator. JS Alternators hairpin...

2010-2017 Chevy Equinox, GMC Terrain 2.4L 250, 320amp alternators

$439.00 $339.00
11459-250-1
Buick Chevrolet GMC
2010-2017 Chevrolet Equinox 2.4L 2010-2017 GMC Terrain 2.4L 2012 Buick Regal 2.4L 2015-2017 Buick Regal 2.4L Hairpin units are commonly called 6 phase. They...

2015-2021 Chevy Colorado GMC Canyon 3.6 250-320amp alternator

$439.00 $339.00
11942-250-1
Chevrolet GMC
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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