Sinister Diesel 01-07 Chevrolet-GMC Silverado-Sierra 2500-3500 OEM High Output Alternator

Sinister Diesel 250 Amp OEM alternators are trusted by many Diesel repair shops and stores to be the fix all solution for the GM Duramax 6.6L alternator failures which may cause electronics failures due to low voltage from the lack of alternator power that comes from the factory. Sinister Diesel's proudly uses brand new OEM alternator components such as the Stator, Rotor, Rectifier and Regulator to give our customers piece of mind to match our standard of quality. Our alternator will be a direct fitment without any modifications needed. We can proudly stand behind all of our alternators with a 1-year warranty.

LBZ Models may have clearance issues with aftermarket intake (EGR) elbow,This alternator has a 2-pin plug. Please check your alternator and make sure it also uses this plug.

Sinister Diesel 01-07 Chevrolet/GMC Silverado/Sierra 2500/3500 OEM High Output Alternator

250 Amp OEM High Output Alternator for 2001-2007 GM Duramax 6.6L (LB7,LLY,LBZ).

2001-2006 Chevy/GMC 2500; 3500; 6.6L

Sinister Diesel Alternator

Alternator