Description

2 Year Performance Guarantee

The Mechman two year warranty applies to Mechman Alternators sold ON or AFTER 07/13/2011. This limited two year warranty allows the customer to return his or her Mechman alternator for repair for a full two years after the alternator purchase date. This warranty does not cover other parts or equipment on the vehicle, and does not cover labor for removal or installation of the alternator. This warranty is VOID if the Mechman alternator is modified, physically abused, misused, improperly installed, or is not used in the application for which it was designed. The Mechman two year warranty is non-transferrable.

Fitment Guide

2002 Chevrolet Silverado 2500HD w/ 6.6L Duramax
2002 Chevrolet Silverado 3500 w/ 6.6L Duramax
2003 Chevrolet Silverado 2500HD w/ 6.6L Duramax
2003 Chevrolet Silverado 3500 w/ 6.6L Duramax
2004 Chevrolet Silverado 2500HD w/ 6.6L Duramax
2004 Chevrolet Silverado 3500 w/ 6.6L Duramax
2005 Chevrolet Silverado 2500HD w/ 6.6L Duramax
2005 Chevrolet Silverado 3500 w/ 6.6L Duramax
2006 Chevrolet Silverado 2500HD w/ 6.6L Duramax
2006 Chevrolet Silverado 3500 w/ 6.6L Duramax
2007 Chevrolet Silverado 2500HD Classic w/ 6.6L Duramax
2007 Chevrolet Silverado 3500 Classic w/ 6.6L Duramax

2002 GMC Sierra 2500HD w/ 6.6L Duramax
2002 GMC Sierra 3500 w/ 6.6L Duramax
2003 GMC Sierra 2500HD w/ 6.6L Duramax
2003 GMC Sierra 3500 w/ 6.6L Duramax
2004 GMC Sierra 2500HD w/ 6.6L Duramax
2004 GMC Sierra 3500 w/ 6.6L Duramax
2005 GMC Sierra 2500HD w/ 6.6L Duramax
2005 GMC Sierra 3500 w/ 6.6L Duramax
2006 GMC Sierra 2500HD w/ 6.6L Duramax
2006 GMC Sierra 3500 w/ 6.6L Duramax
2007 GMC Sierra 2500HD Classic w/ 6.6L Duramax
2007 GMC Sierra 3500 Classic w/ 6.6L Duramax

Fitment Notes

This alternator includes the Mechman H104 wiring harness that plugs inline with your OEM wiring to the alternator. It is required to attach the single long yellow wire to a 12V switched source to help the higher power alternator to charge at lower idle RPMs. Not using this harness will result in very low to no output at idle and a check battery light in OEM applications. This unit may require an additional rectangle to oval adapter harness if the vehicle was originally equipped with the CS144 Heavy duty charging option from the factory (this is not common). This unit is a direct plug in for any truck originally equipped with the more common oval shaped 4 pin plug as shown.

See diagram above (scroll to the last photo) for specifics.