MECHMAN | 320 AMP ALTERNATOR FOR EARLY GM FRONT WHEEL DRIVE V6 CAR

This 320 amp S Series small case alternator is all about max power and is not designed to charge at low idle speeds. Vehicles with small crankshaft pulleys and idle speeds below 800 may not charge at low idle. If power at lower idle speeds is what you need please look at our 240 amp S Series alternator. This S series 320 amp 6 phase alternator offers incredible output in a compact and durable package. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. 320 Amps of power at cruising speeds and 140 amp of power at 800 RPM (assuming a 3 to 1 crankshaft to alternator pulley ratio). This alternator comes with a 1.75″ diameter pulley and may require being installed with a belt slightly shorter than stock.
Fitment Guide:

Make
Model
Engine Size
Year

Buick
Lesabre
3.8L
2000 – 2005

Buick
Park Avenue
3.8L Naturally Aspirated & Super Charged
1999 – 2005

Buick
Regal
3.8L
1999 – 2004

Buick
Rendezvous
All Engines
2002 – 2007

Chevrolet
Impala
3.4L / 3.8L
2000 – 2005

Chevrolet
Malibu
3.1L
1997 – 2003

Chevrolet
Monte Carlo
3.4L / 3.8L
2000 – 2005

Chevrolet
Venture
3.4L
1999 – 2005

Oldsmobile
Alero
3.4L
1999 – 2004

Oldsmobile
Aurora
3.5L
2001 – 2002

Oldsmobile
Cutlass
3.1L
1998 – 2001

Oldsmobile
Intrigue
3.5L
1999 – 2002

Pontiac
Bonneville
3.8L
2000 – 2005

Pontiac
Grand Am
3.4L
1999 – 2005

Pontiac
Grand Prix
3.1L
1999 – 2003

Pontiac
Grand Prix
3.8L
1999 – 2004