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Mechman Alternators 8302270

270 Amp G Series Alternator for Select 2005-2013 GM Vehicles

In Stock. Only 3 Left!
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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!

List price $519.00

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$449.00

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Order within 61 hrs 51 mins to ship 12/5

Arrives by Wednesday, Dec. 7 to zip 20147

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Mechman Alternators 8302270

270 Amp G Series Alternator for Select 2005-2013 GM Vehicles

$449.00

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Mechman G Series Alternators

The hugely popular G series of large case 3 phase alternators have been tried and true for over 15 years. These units offer excellent low RPM output, with 100,000 mile durability. This G series alternator features Mechman's custom solid copper rectifier with large 65 amp press fit diodes and over sized output stud for excellent durability. It cranks out over 165+ amps at just 600 RPM engine speed on any standard GM truck, with full 270+ amps at anything above 1800 rpm engine speed! A 46mm hard anodized billet aluminum 6 rib pulley is used to maximize low RPM output, so a 1/2" to 1" shorter than stock length belt (not included) is recommended for optimum belt tension. 270 amp G series units are made in the USA and come with a 2 year warranty.

General Features:

  • 270 amp alternator
  • For use with select 2005-2013 GM vehicles
  • Excellent low RPM output
  • Incredibly durable design
  • Custom designed solid copper rectifier with 6 press fit high amp diodes to spread out heat
  • Heavy duty regulator
  • Premium NTN bearings
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Compatibility List

  • Buick
    • 2007 - 2008 Rainier 5.3 Liter Engine
  • Cadillac
    • 2005 - 2009 Escalade 5.3/ 6.0 and 6.2 Liter Engine
  • Chevrolet
    • 2005 - 2012 Avalanche All Engines
    • 2005 - 2009 Full Size Truck 4.8 Liter Engine
    • 2005 - 2009 Full Size Truck 5.3 Liter Engine
    • 2005 - 2009 Full Size Truck 6.0 Liter Engine
    • 2005 - 2012 Full Size Truck 4.3 Liter Engine
    • 2006 - 2007 Full Size Truck 8.1 Liter Engine
    • 2007 - 2012 Full Size Truck 6.6 Liter Diesel Engine
    • 2009 - 2013 Full Size Truck 6.2 Liter Engine
    • 2005 - 2012 Suburban 5.3 Liter Engine
    • 2005 - 2012 Suburban 6.0 Liter Engine
    • 2005 - 2012 Tahoe/Full Size Blazer 4.8 Liter Engine
    • 2005 - 2012 Tahoe/Full Size Blazer 5.3 Liter Engine
    • 2005 - 2012 Tahoe/Full Size Blazer 6.0 Liter Engine
    • 2009 - 2012 Tahoe/Full Size Blazer 6.2 Liter Engine
    • 2007 - 2008 Trailblazer 5.3 Liter Engine
    • 2007 - 2009 Trailblazer 6.0 Liter Engine
  • GMC
    • 2007 - 2008 Envoy 5.3 Liter Engine
    • 2007 - 2009 Envoy 6.0 Liter Engine
    • 2005 - 2009 Full Size Truck 4.8 Liter Engine
    • 2005 - 2012 Full Size Truck 4.3 Liter Engine
    • 2005 - 2012 Full Size Truck 5.3 Liter Engine
    • 2006 - 2007 Full Size Truck 8.1 Liter Engine
    • 2006 - 2009 Full Size Truck 6.0 Liter Engine
    • 2007 - 2009 Full Size Truck 6.6 Liter Diesel Engine
    • 2009 - 2012 Full Size Truck 6.2 Liter Engine
    • 2005 - 2011 Yukon 4.8 Liter Engine
    • 2005 - 2011 Yukon 6.0 Liter Engine
    • 2009 - 2012 Yukon 6.2 Liter Engine
  • Hummer
    • 2008 - 2009 H2 6.2 Liter Engine
    • 2008 - 2009 H3 5.3 Liter Engine

Not Sure Which Alternator Fits Your Vehicle?

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

Product Specifications

Amperage Output
270
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.
Buick Rainier
Cadillac Escalade
Chevy Avalanche
Chevy Full Size Blazer
Chevy Full Size Truck
Chevy Suburban
Chevy Tahoe
Chevy Trailblazer
GMC Envoy
GMC Full Size Truck
GMC Yukon
Hummer H2
Hummer H3

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

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Accessory Tools and Products

Accessories added

MechMan Alternators BIG3

Premium Zero Gauge "Big 3" Cable Upgrade Kit

Your Price $61.38

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

XS Power D4800

A Great Match for your Vehicle! Recommended for systems 2000W-3000W RMS!

Your Price $279.99

Mechman Alternators 1020R

Secondary Battery Installation Kit for Audio Systems up to 4000 Watts

Your Price $89.00

Browse 1 question and 1 answer
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Why did you choose this?
Sonic Electronix Store
Great Price and Fast Shipping!!!
Dax S on Nov 25, 2014

Product Summary

Manufacturer

Model Number

8302270

Weight

18.00lbs

Internal SKU

g8302270

Internal Product ID

79344

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 8302270