2007 GMC Sierra 2500 HD Classic V8 6.0L High Output Alternator Amperage:320 amp alternator it is required to upgrade

it is required to upgrade your wiring with the Big 3 Wiring Upgrade Kit

This is a direct fit high-output alternator for the 1969-1986 GMC K1500 5

This is a direct fit high-output alternator for the 1990-1995 Dodge Grand Caravan 3

This is a direct fit high-output alternator for the 2007-2010 Chrysler Sebring 2

2007 GMC Sierra 2500 HD Classic V8 6.0L High Output Alternator Amperage:320 amp alternator it is required to upgradeFitment: This is a direct fit high output alternator for the 2007 GMC Sierra 2500 HD Classic 6. 0L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a factory style plug so that your OEM plug will plug directly into the alternator. Therefore, with an OEM style regulator, it will have a factory voltage set point. NOTE: If you require charging at a certain voltage