Alternator for 4.3L, 4.8L Chevrolet Silverado Pickup 1500 2003-2005 400-12204
Alternator for 4.3L, 4.8L Chevrolet Silverado Pickup 1500 2003-2005 400-12204

Alternator for 4.3L, 4.8L Chevrolet Silverado Pickup 1500 2003-2005 400-12204

Item #: 400-12204

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Highly engineered alternators for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu and Saab
  • Built to Beat the Heat: High temperature epoxy and high temperature grease withstand extreme heat
  • Heavy-duty rectifiers and high-quality regulators enhance superior charging performance
  • Most alternators are supplied with final test results and performance curve
  • Direct-fit replacement and easy installation made possible with OEM fitment specifications
  • Highly recommended as a Chevy Silverado alternator replacement, as well as for Buick Rainer, Cadillac Escalade, Chevrolet Avalanche, Chevrolet Suburban, Chevrolet Tahoe, Chevrolet Trailblazer, GMC Sierra, GMC Yukon and more
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu and Saab
DB Electrical offers premium-quality alternators that deliver high-performance for Chevrolet and other General Motors brands such as Buick, GMC, Pontiac and Oldsmobile. Owners of Chevy cars, trucks, vans and SUVs appreciate the highly engineered quality of DB Electrical alternators for flawless mechanical performance and longevity. Founded in 1911, Chevy has been a symbol of the American road for over a century. A DB Electrical alternator is a great choice for keeping your Chevrolet or other GM vehicle on the road. Highly recommended as a Chevy Silverado alternator replacement, as well as for Buick Rainer, Cadillac Escalade, Chevrolet Avalanche, Chevrolet Suburban, Chevrolet Tahoe, Chevrolet Trailblazer, GMC Sierra, GMC Yukon and more. (Check our applications table below for specific makes and models for this alternator.)

With DB Electrical alternators, you'll get -

  • Superior Quality Every Time - Our aftermarket alternators deliver performance that's equivalent to the original.
  • Direct-Fit OEM Replacement Parts - DB Electrical aftermarket alternators are designed for perfect fitment to replace the ones that originally came with your vehicle.
  • Engineer-Tested Excellence - Our alternators go through a rigorous testing program to ensure optimal performance. Most alternators are supplied with their final test results and performance curve.

Reasons to choose DB Electrical for your next alternator:

  • Built to Take the Heat - Most DB Electrical alternators offer high-temperature epoxy, heavy-duty rectifiers, high-quality regulators, top-quality bearings and high-temperature grease produce better charging and longer life under high-heat environments.
  • Brand New Alternator - Never settle for a secondhand one. Many places will try to sell you a used alternator for about the price we'll sell you a new one.

The DB Electrical Advantage - Factory-Direct Pricing and 1-Year Warranty
DB Electrical sells its exceptional-quality electrical components at low factory-direct prices. DB Electrical delivers exceptional value for products that we stand behind with our total-confidence 1-year warranty. Yes, you have a full year to make sure your alternator meets your expectations.

Item Number: 400-12204

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationCW
Amperage145
Pulley ClassS6
RegulatorIR
Fan TypeIF
FitsBUICK RANIER 5.3L 2006
CHEVROLET / GMC LIGHT TRUCKS 2003-06
ISUZU ASCENDER 5.3L 2003-06
6-GROOVE PULLEY 57mm OD
DELCO AD244 SERIES

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
BuickAuto and Light TruckRAINIER2004325cu in 5.3L V8
BuickTruckRainier20045300cc 5.3L V8
BuickAuto and Light TruckRAINIER2005325cu in 5.3L V8
BuickTruckRainier20055300cc 5.3L V8
BuickAuto and Light TruckRAINIER2006325cu in 5.3L V8
BuickTruckRainier20065300cc 5.3L V8
BuickAuto and Light TruckRAINIER2007325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2002325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2002364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE2003325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2003364cu in 6.0L V8
CadillacTruckEscalade20035300cc 5.3L V8
CadillacTruckEscalade20035967cc 6.0L V8
CadillacAuto and Light TruckESCALADE2004325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2004364cu in 6.0L V8
CadillacTruckEscalade20045300cc 5.3L V8
CadillacTruckEscalade20045967cc 6.0L V8
CadillacAuto and Light TruckESCALADE2005364cu in 6.0L V8
CadillacTruckEscalade20055967cc 6.0L V8
CadillacAuto and Light TruckESCALADE2006364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE ESV2003364cu in 6.0L V8
CadillacAuto and Light TruckEscalade ESV2003
CadillacAuto and Light TruckESCALADE ESV2004364cu in 6.0L V8
CadillacAuto and Light TruckEscalade ESV2004
CadillacAuto and Light TruckESCALADE ESV2005364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE ESV2006364cu in 6.0L V8
CadillacAuto and Light TruckEscalade EXT2002
CadillacAuto and Light TruckESCALADE EXT2003364cu in 6.0L V8
CadillacAuto and Light TruckEscalade EXT2003
CadillacAuto and Light TruckESCALADE EXT2004364cu in 6.0L V8
CadillacAuto and Light TruckEscalade EXT2004
CadillacAuto and Light TruckESCALADE EXT2005364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE EXT2006364cu in 6.0L V8
ChevroletAuto and Light TruckAstro20054300cc 4.3L V6
ChevroletTruckAvalanche 15002002
ChevroletAuto and Light TruckAVALANCHE 15002003325cu in 5.3L V8
ChevroletTruckAvalanche 150020035300cc 5.3L V8
ChevroletTruckAvalanche 15002003
ChevroletAuto and Light TruckAVALANCHE 15002004325cu in 5.3L V8
ChevroletTruckAvalanche 150020045300cc 5.3L V8
ChevroletTruckAvalanche 15002004
ChevroletAuto and Light TruckAVALANCHE 15002006325cu in 5.3L V8
ChevroletTruckAvalanche 25002002
ChevroletAuto and Light TruckAVALANCHE 25002003496cu in 8.1L V8
ChevroletTruckAvalanche 250020038100cc 8.1L V8
ChevroletTruckAvalanche 25002003
ChevroletAuto and Light TruckAVALANCHE 25002004496cu in 8.1L V8
ChevroletTruckAvalanche 250020048100cc 8.1L V8
ChevroletTruckAvalanche 25002004
ChevroletAuto and Light TruckAVALANCHE 25002005496cu in 8.1L V8
ChevroletTruckAvalanche 250020058100cc 8.1L V8
ChevroletTruckAvalanche 25002005
ChevroletAuto and Light TruckAVALANCHE 25002006496cu in 8.1L V8
ChevroletTruckAvalanche 250020068100cc 8.1L V8
ChevroletTruckAvalanche 25002006
ChevroletTruckC Series20034300cc 4.3L V6
ChevroletTruckC Series20034800cc 4.8L V8
ChevroletTruckC Series20035300cc 5.3L V8
ChevroletTruckC Series20036000cc 6L V8
ChevroletMedium & Heavy-Duty TruckC Series20036600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC Series20038100cc 8.1L V8
ChevroletTruckC Series20038100cc 8.1L V8
ChevroletTruckC Series20044300cc 4.3L V6
ChevroletTruckC Series20044800cc 4.8L V8
ChevroletTruckC Series20045300cc 5.3L V8
ChevroletTruckC Series20046000cc 6L V8
ChevroletMedium & Heavy-Duty TruckC Series20046600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC Series20048100cc 8.1L V8
ChevroletTruckC Series20056000cc 6L V8
ChevroletMedium & Heavy-Duty TruckC Series20056600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC Series20058100cc 8.1L V8
ChevroletTruckC Series20066000cc 6L V8
ChevroletMedium & Heavy-Duty TruckC Series20066600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC Series20068100cc 8.1L V8
ChevroletTruckC Series20076000cc 6L V8
ChevroletMedium & Heavy-Duty TruckC Series20078100cc 8.1L V8
ChevroletTruckC350020038100cc 8.1L V8
ChevroletTruckC3500HD20018100cc 8.1L V8
ChevroletTruckC3500HD20028100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20036600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20038100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20046600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20048100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20056600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20058100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20066599cc 6.6L V8 Diesel
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20066600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20068100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC4500 Kodiak20078100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20036600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20038100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20046600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20048100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20056600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20058100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20066599cc 6.6L V8 Diesel
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20066600cc 6.6L V8 DIESEL
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20068100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC5500 Kodiak20078100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20038100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20048100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20058100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20068100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20078100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20038100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20048100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20058100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20068100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20078100cc 8.1L V8
ChevroletAuto and Light TruckCOLORADO2010325cu in 5.3L V8
ChevroletAuto and Light TruckCOLORADO2011325cu in 5.3L V8
ChevroletAuto and Light TruckCOLORADO2012325cu in 5.3L V8
ChevroletAuto and Light TruckExpress 150020014300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020015000cc 5.0L V8
ChevroletAuto and Light TruckExpress 150020015700cc 5.7L V8
ChevroletAuto and Light TruckExpress 150020024300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020025000cc 5.0L V8
ChevroletAuto and Light TruckExpress 150020025700cc 5.7L V8
ChevroletAuto and Light TruckExpress 150020034300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020035300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020044300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020045300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020054300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020055300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020064300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020065300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020074300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020075300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020075328cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020084300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020085300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020085328cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020094300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020095328cc 5.3L V8 GAS
ChevroletAuto and Light TruckExpress 150020095328cc RWD 5.3L V8 Flex
ChevroletAuto and Light TruckExpress 150020104300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020105300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020114300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020115328cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020124300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020125328cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020134293cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020135328cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020144293cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020145328cc 5.3L V8
ChevroletAuto and Light TruckExpress 250020014300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020015000cc 5.0L V8 Gas
ChevroletAuto and Light TruckExpress 250020015700cc 5.7L V8 Gas
ChevroletAuto and Light TruckExpress 250020016500cc 6.5L V8
ChevroletAuto and Light TruckExpress 250020024300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020025000cc 5.0L V8
ChevroletAuto and Light TruckExpress 250020025700cc 5.7L V8
ChevroletAuto and Light TruckExpress 250020026500cc 6.5L V8
ChevroletAuto and Light TruckExpress 250020034300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020034300cc RWD 4.3L V6
ChevroletAuto and Light TruckExpress 250020034800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020034800cc RWD 4.8L V8
ChevroletAuto and Light TruckExpress 250020035300cc 5.3L V8
ChevroletAuto and Light TruckExpress 250020035300cc RWD 5.3L V8
ChevroletAuto and Light TruckExpress 250020035967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020044300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020044300cc RWD 4.3L V6
ChevroletAuto and Light TruckExpress 250020044800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020044800cc RWD 4.8L V8
ChevroletAuto and Light TruckExpress 250020045300cc 5.3L V8
ChevroletAuto and Light TruckExpress 250020045300cc RWD 5.3L V8
ChevroletAuto and Light TruckExpress 250020045967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020045967cc RWD 6.0L V8
ChevroletAuto and Light TruckExpress 250020054300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020054300cc RWD 4.3L V6
ChevroletAuto and Light TruckExpress 250020054800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020054800cc RWD 4.8L V8
ChevroletAuto and Light TruckExpress 250020055300cc 5.3L V8
ChevroletAuto and Light TruckExpress 250020055300cc RWD 5.3L V8
ChevroletAuto and Light TruckExpress 250020055967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020055967cc AWD 6.0L V8
ChevroletAuto and Light TruckExpress 250020055967cc RWD 6.0L V8
ChevroletAuto and Light TruckExpress 250020064800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020065967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020066599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020066599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020066600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 25002006
ChevroletAuto and Light TruckExpress 250020074800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020075967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020076599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020076599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020076600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020084800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020085967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020086599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020086600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020094800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020095967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020096599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020096600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020104800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020105967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020106599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020106600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020114800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020115967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020116599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020116600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020124800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020125967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020126599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020134800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020135967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020136599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020144800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020145967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020146599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020154.8L V8
ChevroletAuto and Light TruckExpress 250020156.0L V8
ChevroletAuto and Light TruckExpress 250020156.6L V8
ChevroletAuto and Light TruckExpress 250020164.8L V8
ChevroletAuto and Light TruckExpress 250020166.0L V8
ChevroletAuto and Light TruckExpress 250020166.6L V8
ChevroletAuto and Light TruckExpress 350020015700cc 5.7L V8 Gas
ChevroletAuto and Light TruckExpress 350020016500cc 6.5L V8
ChevroletAuto and Light TruckExpress 350020018100cc 8.1L V8 Gas
ChevroletAuto and Light TruckExpress 350020025700cc 5.7L V8
ChevroletAuto and Light TruckExpress 350020026500cc 6.5L V8
ChevroletAuto and Light TruckExpress 350020028100cc 8.1L V8
ChevroletAuto and Light TruckExpress 350020035300cc 5.3L V8
ChevroletAuto and Light TruckExpress 350020035967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020045300cc 5.3L V8
ChevroletAuto and Light TruckExpress 350020045967cc 6.0L V8
ChevroletAuto and Light TruckExpress 35002004
ChevroletAuto and Light TruckExpress 350020054800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020055300cc 5.3L V8
ChevroletAuto and Light TruckExpress 350020055967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020064800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020065300cc 5.3L V8
ChevroletAuto and Light TruckExpress 350020065967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020066599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020066600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 350020074800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020075300cc 5.3L V8
ChevroletAuto and Light TruckExpress 350020075967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020076599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020076599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020076600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 350020084800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020085300cc 5.3L V8
ChevroletAuto and Light TruckExpress 350020085967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020086599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020086600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 350020094800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020095967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020096599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020096600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 350020104800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020105967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020106599cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020106600cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020114800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020115967cc 6.0L V8
ChevroletAuto and Light TruckExpress 35002011
ChevroletAuto and Light TruckExpress 350020124800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020125967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020126599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020134800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020135967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020136599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020144800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020145967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020146599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020154.8L V8
ChevroletAuto and Light TruckExpress 350020156.0L V8
ChevroletAuto and Light TruckExpress 350020156.6L V8
ChevroletAuto and Light TruckExpress 350020164.8L V8
ChevroletAuto and Light TruckExpress 350020166.0L V8
ChevroletAuto and Light TruckExpress 350020166.6L V8
ChevroletAuto and Light TruckExpress 450020095967cc 6.0L V8
ChevroletAuto and Light TruckExpress 450020096600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 450020105967cc 6.0L V8
ChevroletAuto and Light TruckExpress 450020106600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 450020115967cc 6.0L V8
ChevroletAuto and Light TruckExpress 45002013
ChevroletAuto and Light TruckExpress 45002014
ChevroletAuto and Light TruckExpress 450020156.0L V8
ChevroletAuto and Light TruckExpress 450020156.6L V8
ChevroletAuto and Light TruckExpress 450020166.0L V8
ChevroletAuto and Light TruckExpress 450020166.6L V8
ChevroletAuto and Light TruckExpress Cargo20105967cc 6.0L V8
ChevroletAuto and Light TruckExpress Cargo20146.0L V8
ChevroletAuto and Light TruckExpress Pasajeros20105967cc 6.0L V8
ChevroletAuto and Light TruckEXPRESS VANS2003262cu in 4.3L V6
ChevroletAuto and Light TruckEXPRESS VANS2003294cu in 4.8L V8
ChevroletAuto and Light TruckEXPRESS VANS2003323cu in 5.3L V8
ChevroletAuto and Light TruckEXPRESS VANS2003364cu in 6.0L V8
Chevrolet

Replaces These Part Numbers

AC DELCO321-1845, 321-2128, 334-2529
ARROWHEADADR0290, 400-12204
CARGO113777
DELCO10464476, 15226003, 15754097, 15754097A, 15754097M, 15754097W, 8400042
GENERAL MOTORS19151921, 19244751
ISUZU8104644760, 8152260030, 8192447510
J&N Electrical Products400-12204
LESTER8292
NSAALT-1511
REGITAR-USAA240-6223N
REMY LIGHT DUTY21845
SAAB15-22-6003
UNIPOINTALT-1511
WAI1-2419-21DR, 8292N

Frequently Asked Questions

Q: Do I need a larger charge wire for a High Output unit?
A: The high amp unit will operate better than stock, but not to its full potential without a larger charge wire. It’s the same reason firetrucks do not use garden hoses. It is IMPARATIVE to have proper charge and ground cables.

Q: Does a High Amp unit cause any damage to my battery or my vehicles charging system?
A: As long as it is installed properly with battery in good condition, then no. A High Output unit works exactly like a factory unit and only produces what is being demanded. No alternator works continuously at full output. Higher amperage is not bad and will not hurt a battery, but high voltage will blow one up.

Q: Will aftermarket underdrive pulleys (crankshaft power pulley) have any effect on my alternator?
A: Yes, underdrive crankshaft pulleys slow all the components (power steering, a/c, and alternator) to provide more power to the rear wheels. In some cases, the charging systems will fall totally on the battery at idle and completely stop charging.

Q: Where is the best place to get a voltage reading of the alternator output?
A: You’ll get the most accurate voltage reading from the back of the alternator at the main charge post that runs directly to the battery. This must be done while the vehicle is running.

Q: Why is the pulley on a high amp alternator smaller than my stock pulley?
A: The smaller pulley advances the power curve of the alternator just slightly, which produces a little more amperage around the idle if needed.

Q: Will I need a smaller belt for my high amp unit?
A: This varies by application because not all belts and belt tensioners are in the same condition. The tensioner will always tell you if you need a new belt or not. If it’s in range, you will not. If it is out, you will. Generally, you will need a belt that is one inch shorter than stock. You should have no problem finding a replacement wherever you buy your parts. V belt applications simply re-adjust your belt tensions to 3/8” deflection.

Q: What is the difference between a one wire, self-exciting and a self-energizing regulator?
A: Nothing. They are all exactly the same. Different manufacturers use different terms for marketing. The only wire to hook up is the charge wire to the battery. This does require modification for the alternator charge light on the dash.

Q: My stock unit used a five-groove pulley, and you sent my high amp alternator with a 6 groove. Why and what can I do?
A: 5 groove overdrive pullies are not produced. Install the belt on the back groove of the pulley closest to the fan or body of the alternator. The fan is internal, and this application will work just fine.

Q: Can your alternator be run in dual or triple alternator applications?
A: Yes. When wired and mounted correctly, the alternator can run in either dual or triple applications.

Q: Will I need a new battery with a high amp alternator?
A: If your battery is in good condition, and in spec of its OEM rating, then no. Your battery should work equally well with either the OEM and a High Amp unit.

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