Mechman

Mechman 240 Amp G Series Alternator for 2007.5-2012 Duramax

  • Sale
  • $299.00
  • Regular price $349.00


Most alternators are custom built to order. Standard build time is 1-2 weeks.

Based on the GM AD244 chassis, the tried-and-true G series of alternators are our best sellers. Reasonably priced and very durable, these units feature solid copper custom rectifiers for great durability. 6 oversize press fit diodes and premium bearings ensure long life even in hot or abusive conditions. This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt for proper belt tension. This alternator integrates normally with the OEM GM engine computer and RVC load sensor, so charging voltage will still be controlled by the ECU. Upgraded positive and negative battery cables must be routed in a specific way on these vehicles in order for the system to function normally, please review the included instructions carefully. Not recommended for use above 5,500 RPM engine speed.

Fitment Guide:

Make Engine Size Year
Buick Rainier 5.3L 2007 - 2008
Cadillac Escalade 5.7L / 6.0L / 6.2L 2005 - 2013
Chevrolet Avalanche All Gas Engines 2005 - 2013
Chevrolet Express Van w/2 Pin Plug 1996 - 2016
Chevrolet Full Size Truck All Gas Engines 2005 - 2013
Chevrolet Full Size Truck 6.6L Duramax 2008 - 2013
Chevrolet Suburban All Gas Engines 2005 - 2014
Chevrolet Tahoe All Gas Engines 2005 - 2013
Chevrolet Trailblazer 5.3L / 6.0L 2007 - 2009
GMC Envoy 5.3L 2007 - 2008
GMC Full Size Truck 4.3L / 4.8L / 5.3L 2005 - 2013
GMC Full Size Truck 6.0L 2006 - 2013
GMC Full Size Truck 6.2L 2009 - 2013
GMC Full Size Truck 6.6L Duramax 2007 - 2013
GMC Full Size Truck 8.1L 2006 - 2007
GMC Savana Van w/2 Pin Plug 2005 - 2016
GMC Yukon All Gas Engines 2005 - 2013
Hummer H2 6.2L 2008 - 2009
Hummer H3 5.3L 2008 - 2010