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Mechman Alternators 11140240

240 Amp S Series Alternator for Select 2002-2011 GM Vehicles

Special Order. Ships at Later Date

Mechman Alternators are built to order: new or used product can not be returned. Any defect will be remedied directly through the manufacturer. We invite you to call and speak with our Sales Specialists so we can ensure you have the right solution for your vehicle!

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Mechman Alternators 11140240

240 Amp S Series Alternator for Select 2002-2011 GM Vehicles


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MechMan Alternators BIG3

Premium Zero Gauge "Big 3" Cable Upgrade Kit


XS Power XP750-CK

The Perfect Secondary Battery and Installation Kit for 1000-1500 Watt Audio Sytems!



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Mechman S Series Alternators

The S series family of alternators offers large case alternator performance in a compact package. Highly efficient, these 6 phase alternators use less horsepower per Kilowatt than conventional 3 phase alternators. 12 press fit diodes, twin rectifier plates, and highly efficient twin internal cooling fans make them durable in any application. Smaller, lighter rotors and reduced rotating resistance make them an excellent choice for high RPM or racing applications. Like their big brothers in the Elite series, the S series have hairpin stators and high pole count rotors that create much less Electromagnetic noise than conventional 3 phase alternators.

General Features:

  • 240 amp alternator
  • For use with select 2002-2011 GM vehicles
  • Cast aluminum construction
  • Cutting edge 6 phase hairpin epoxy reinforced stator technology
    • Improves durability
    • Increases high RPM stability
  • Oversized charge post ensure sturdy cable connections
  • Premium low-drag bearings
  • Ultra precision balanced rotor
    • Provides 20,000 RPM capability
  • Twin solid copper rectifiers with 12 press fit high amp diodes to spread out heat
  • 15% more efficient than typical alternators
    • Wastes less horsepower in the form of heat
  • Precision pulley machined from bar stock
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Compatibility List

  • Chevrolet
    • 2003 - 2005 Cavalier 2.2 Liter Ecotec Engine
    • 2006 - 2011 HHR 2.2 and 2.4 Liter Non-Supercharged Engines
    • 2004 - 2011 Malibu 2.2 and 2.4 Liter Non-Supercharged Engines
  • Oldsmobile
    • 2002 - 2004 Alero 2.2 Liter Engine
  • Pontiac
    • 2007 - 2008 G5 2.4 Liter Engine
    • 2007 - 2009 G5 2.2 Liter Engine
    • 2002 - 2005 Grand Am 2.2 Liter Engine
    • 2002 - 2005 Sunfire 2.2 Liter Engine
  • Saturn
    • 2008 - 2009 Aura 2.4 Liter Engine
    • 2003 - 2007 Ion 2.2 Liter Engine
    • 2004 - 2007 Ion 2.0 Liter Engine
    • 2006 - 2007 Ion 2.4 Liter Engine
    • 2002 - 2007 Vue 2.2 Liter Engine
    • 2008 - 2009 Vue 2.4 Liter Engine

Not Sure Which Alternator Fits Your Vehicle?

Check the Mechman Alternators Vehicle Fit Guide to find the right alternator for your vehicle!

This unit has a self exciting internal voltage regulator that does not require anything to be plugged into the alternator.

The installation of this unit will cause the "check battery" light to stay on in the dash.

Product Specifications

Amperage Output
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Chevy Cavalier
Chevy HHR
Chevy Malibu
Oldsmobile Alero
Pontiac G5
Pontiac Grand Am
Pontiac Sunfire
Saturn Aura
Saturn Ion
Saturn Vue

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating

Accessory Tools and Products

Accessories added

MechMan Alternators BIG3

Premium Zero Gauge "Big 3" Cable Upgrade Kit

Your Price $69.95

Perfect Match Big 3 Kit

Get the right Big 3 Kit to go with your High Output Alternator

Your Price $69.99

XS Power XP750-CK

The Perfect Secondary Battery and Installation Kit for 1000-1500 Watt Audio Sytems!

Your Price $149.99

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Mechman Alternators 11140240