1963-1987 Olds/Buick ALL ENGINES w/ 12SI 250-320amp Alternator

$439.00 $339.00
7127-250-859
All Buick High Output Alternators Oldsmobile 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...

1991-1993 Oldsmobile Bravada 250-320-370-400amp Alternator

$709.00 $559.00
81657_949284945-109201169-890356404
All Oldsmobile 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...

1994-2001 Oldsmobile Bravada 250-320-370-400amp Alternator

$709.00 $559.00
8206_992316103-241407870-457432338
All Oldsmobile 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...

2001-2002 Oldsmobile Aurora 250-320-370-400amp Alternator

$709.00 $559.00
8287_34960666-696152748-440755997
All Oldsmobile 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...

1999-2002 Oldsmobile Intrigue 250-320-370-400amp Alternator

$709.00 $559.00
8287_83131893-106793421-430330108
All Oldsmobile 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...

1999-2004 Oldsmobile Alero 250-320-370-400amp Alternator

$709.00 $559.00
8287_420450912-670678875-856802072
All Oldsmobile 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...

1998-2001 Oldsmobile Cutlass 250-320-370-400amp Alternator

$709.00 $559.00
8287_894225084-411202651-126505212
All Oldsmobile 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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2002-2004 Oldsmobile Bravada 250amp Alternator - JS Alternators JS Alternators High Output Amp Alternator Quick View

2002-2004 Oldsmobile Bravada 250amp Alternator

$439.00 $339.00
8497-250-762
All Oldsmobile 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...

2002-2004 Oldsmobile Alero 250-370-400amp Alternator

$709.00 $559.00
11140_420852088-880720003-406282670
All Oldsmobile 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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