Alternator for Chevrolet Silverado Sierra Pickup 4.3L 1500 1999-2002 400-12172
Alternator for Chevrolet Silverado Sierra Pickup 4.3L 1500 1999-2002 400-12172
Alternator for Chevrolet Silverado Sierra Pickup 4.3L 1500 1999-2002 400-12172
Alternator for Chevrolet Silverado Sierra Pickup 4.3L 1500 1999-2002 400-12172
Alternator for Chevrolet Silverado Sierra Pickup 4.3L 1500 1999-2002 400-12172

Alternator for Chevrolet Silverado Sierra Pickup 4.3L 1500 1999-2002 400-12172

Item #: 400-12172

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Highly engineered alternators for Cadillac, Chevrolet and GMC
  • 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
  • Factory direct, money-saving alternator typically priced substantially less than OEM counterparts
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  • Product Info
  • Applications List
  • Part Replacement List
  • Policy Information
  • Reviews

Overview

DB Electrical Alternators for Chevrolet and other GM Vehicles
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. (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: 400-12172

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationCW
Amperage130
Pulley Class1272
RegulatorIR
Fan TypeIF
FitsCHEVROLET / GMC LIGHT TRUCKS 1999 ,6-GROOVE PULLEY 56mm OD ,DELCO AD244 SERIES

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
BuickAuto and Light TruckRAINIER2004325cu in 5.3L V8
BuickAuto and Light TruckRAINIER2005325cu in 5.3L V8
BuickAuto and Light TruckRAINIER2006325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2002325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2002364cu in 6.0L V8
CadillacTruckEscalade20025300cc 5.3L V8
CadillacTruckEscalade20025967cc 6.0L V8
CadillacAuto and Light TruckESCALADE2003325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2003364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE2004325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2004364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE2005325cu in 5.3L V8
CadillacAuto and Light TruckESCALADE2005364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE ESV2003364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE ESV2004364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE ESV2005364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE ESV2006364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE EXT2002364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE EXT2003364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE EXT2004364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE EXT2005364cu in 6.0L V8
ChevroletTruckAvalanche20025328cc 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 15002002325cu in 5.3L V8
ChevroletTruckAvalanche 150020025300cc 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 15002003325cu in 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 15002004325cu in 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 15002005325cu in 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 25002002496cu in 8.1L V8
ChevroletTruckAvalanche 250020028100cc 8.1L V8
ChevroletAuto and Light TruckAVALANCHE 25002003496cu in 8.1L V8
ChevroletAuto and Light TruckAVALANCHE 25002004496cu in 8.1L V8
ChevroletAuto and Light TruckAVALANCHE 25002005496cu in 8.1L V8
ChevroletAuto and Light TruckAVALANCHE 25002006496cu in 8.1L V8
ChevroletAuto and Light TruckC / K / R / V SERIES PICKUPS2001496cu in 8.1L V8
ChevroletAuto and Light TruckC / K / R / V SERIES PICKUPS2002496cu in 8.1L V8
ChevroletTruckC Series19994300cc 4.3L V6
ChevroletTruckC Series19994800cc 4.8L V8
ChevroletTruckC Series19995300cc 5.3L V8
ChevroletTruckC Series19996000cc 6L V8
ChevroletTruckC Series20004300cc 4.3L V6
ChevroletTruckC Series20004800cc 4.8L V8
ChevroletTruckC Series20005300cc 5.3L V8
ChevroletTruckC Series20006000cc 6L V8
ChevroletTruckC Series20014300cc 4.3L V6
ChevroletTruckC Series20014800cc 4.8L V8
ChevroletTruckC Series20015300cc 5.3L V8
ChevroletTruckC Series20016000cc 6L V8
ChevroletTruckC Series20016600cc 6.6L V8 Diesel
ChevroletMedium & Heavy-Duty TruckC Series20018100cc 8.1L V8
ChevroletTruckC Series20018100cc 8.1L V8
ChevroletTruckC Series20024300cc 4.3L V6
ChevroletTruckC Series20024800cc 4.8L V8
ChevroletTruckC Series20025300cc 5.3L V8
ChevroletTruckC Series20026000cc 6L V8
ChevroletTruckC Series20026600cc 6.6L V8 Diesel
ChevroletMedium & Heavy-Duty TruckC Series20028100cc 8.1L V8
ChevroletTruckC Series20028100cc 8.1L V8
ChevroletTruckC350020018100cc 8.1L V8
ChevroletTruckC350020028100cc 8.1L V8
ChevroletTruckC3500HD20018100cc 8.1L V8
ChevroletTruckC3500HD20028100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20018100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak20028100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20018100cc 8.1L V8
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak20028100cc 8.1L 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 150020084300cc 4.3L V6
ChevroletAuto and Light TruckExpress 150020085300cc 5.3L V8
ChevroletAuto and Light TruckExpress 150020094300cc 4.3L V6
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 250020014300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020015000cc 5.0L V8
ChevroletAuto and Light TruckExpress 250020015000cc 5.0L V8 Gas
ChevroletAuto and Light TruckExpress 250020015700cc 5.7L V8
ChevroletAuto and Light TruckExpress 250020015700cc 5.7L V8 Gas
ChevroletAuto and Light TruckExpress 250020016500cc 6.5L V8
ChevroletAuto and Light TruckExpress 250020016500cc 6.5L V8 DIESEL
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 250020026500cc 6.5L V8 DIESEL
ChevroletAuto and Light TruckExpress 250020034300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020034800cc 4.8L 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 250020044800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020045300cc RWD 5.3L V8
ChevroletAuto and Light TruckExpress 250020045967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020054300cc 4.3L V6
ChevroletAuto and Light TruckExpress 250020054800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020055300cc RWD 5.3L V8
ChevroletAuto and Light TruckExpress 250020055967cc 6.0L V8
ChevroletAuto and Light TruckExpress 250020064800cc 4.8L V8
ChevroletAuto and Light TruckExpress 250020065967cc 6.0L V8
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 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 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 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 250020106600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020116600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 250020126599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020136599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020146599cc 6.6L V8
ChevroletAuto and Light TruckExpress 250020156.6L V8
ChevroletAuto and Light TruckExpress 250020166.6L V8
ChevroletAuto and Light TruckExpress 350020015700cc 5.7L V8
ChevroletAuto and Light TruckExpress 350020015700cc 5.7L V8 Gas
ChevroletAuto and Light TruckExpress 350020016500cc 6.5L V8
ChevroletAuto and Light TruckExpress 350020016500cc 6.5L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020018100cc 8.1L 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 350020026500cc 6.5L V8 DIESEL
ChevroletAuto and Light TruckExpress 350020028100cc 8.1L V8
ChevroletAuto and Light TruckExpress 350020035967cc 6.0L V8
ChevroletAuto and Light TruckExpress 35002003
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 350020055967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020064800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020065967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020066600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 350020074800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020075967cc 6.0L V8
ChevroletAuto and Light TruckExpress 350020076600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 350020084800cc 4.8L V8
ChevroletAuto and Light TruckExpress 350020085967cc 6.0L V8
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 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 350020106600cc 6.6L V8 Diesel
ChevroletAuto and Light TruckExpress 35002011
ChevroletAuto and Light TruckExpress 350020126599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020136599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020146599cc 6.6L V8
ChevroletAuto and Light TruckExpress 350020156.6L V8
ChevroletAuto and Light TruckExpress 350020166.6L V8
ChevroletAuto and Light TruckEXPRESS VANS2001262cu in 4.3L V6
ChevroletAuto and Light TruckEXPRESS VANS2001305cu in 5.0L V8
ChevroletAuto and Light TruckEXPRESS VANS2001350cu in 5.7L V8
ChevroletAuto and Light TruckEXPRESS VANS2001395cu in 6.5L V8 Diesel
ChevroletAuto and Light TruckEXPRESS VANS2001496cu in 8.1L V8
ChevroletAuto and Light TruckEXPRESS VANS2002262cu in 4.3L V6
ChevroletAuto and Light TruckEXPRESS VANS2002305cu in 5.0L V8
ChevroletAuto and Light TruckEXPRESS VANS2002350cu in 5.7L V8
ChevroletAuto and Light TruckEXPRESS VANS2002395cu in 6.5L V8 Diesel
ChevroletAuto and Light TruckEXPRESS VANS2002496cu in 8.1L V8
ChevroletTruckK Series19994300cc 4.3L V6
ChevroletTruckK Series19994800cc 4.8L V8
ChevroletTruckK Series19995300cc 5.3L V8
ChevroletTruckK Series19996000cc 6L V8
ChevroletTruckK Series1999
ChevroletTruckK Series20004300cc 4.3L V6
ChevroletTruckK Series20004800cc 4.8L V8
ChevroletTruckK Series20005300cc 5.3L V8
ChevroletTruckK Series20006000cc 6L V8
ChevroletTruckK Series2000
ChevroletTruckK Series20014300cc 4.3L V6
ChevroletTruckK Series20014800cc 4.8L V8
ChevroletTruckK Series20015300cc 5.3L V8
ChevroletTruckK Series20016000cc 6L V8
ChevroletTruckK Series20016600cc 6.6L V8 Diesel
ChevroletTruckK Series20018100cc 8.1L V8
ChevroletTruckK Series20024300cc 4.3L V6
ChevroletTruckK Series20024800cc 4.8L V8
ChevroletTruckK Series20025300cc 5.3L V8
ChevroletTruckK Series20026000cc 6L V8
ChevroletTruckK Series20026600cc 6.6L V8 Diesel
ChevroletTruckK Series20028100cc 8.1L V8
ChevroletTruckR Series19994300cc 4.3L V6
ChevroletTruckR Series19994800cc 4.8L V8
ChevroletTruckR Series19995300cc 5.3L V8
ChevroletTruckR Series19996000cc 6L V8
ChevroletTruckR Series20004300cc 4.3L V6
ChevroletTruckR Series20004800cc 4.8L V8
ChevroletTruckR Series20005300cc 5.3L V8
ChevroletTruckR Series20006000cc 6L V8
ChevroletTruckR Series20014300cc 4.3L V6
ChevroletTruckR Series20014800cc 4.8L V8
ChevroletTruckR Series20015300cc 5.3L V8
ChevroletTruckR Series20016000cc 6L V8
ChevroletTruckR Series20016600cc 6.6L V8 Diesel
ChevroletTruckR Series20018100cc 8.1L V8
ChevroletTruckR Series20024300cc 4.3L V6
ChevroletTruckR Series20024800cc 4.8L V8
ChevroletTruckR Series20025300cc 5.3L V8
ChevroletTruckR Series20026000cc 6L V8
ChevroletTruckR Series20026600cc 6.6L V8 Diesel
ChevroletTruckR Series20028100cc 8.1L V8
ChevroletAuto and Light TruckSILVERADO 15001999262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15001999294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15001999325cu in 5.3L V8
ChevroletTruckSilverado 150019994300cc 4.3L V6
ChevroletTruckSilverado 150019994800cc 4.8L V8
ChevroletTruckSilverado 150019995300cc 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002000262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002000294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002000325cu in 5.3L V8
ChevroletTruckSilverado 150020004300cc 4.3L V6
ChevroletTruckSilverado 150020004800cc 4.8L V8
ChevroletTruckSilverado 150020005300cc 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002001262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002001294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002001325cu in 5.3L V8
ChevroletTruckSilverado 150020014300cc 4.3L V6
ChevroletTruckSilverado 150020014800cc 4.8L V8
ChevroletTruckSilverado 150020015300cc 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002002262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002002294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002002325cu in 5.3L V8
ChevroletTruckSilverado 150020024300cc 4.3L V6
ChevroletTruckSilverado 150020024800cc 4.8L V8
ChevroletTruckSilverado 150020025300cc 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002003262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002003294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002003325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002003364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 15002004262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002004294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002004325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002004364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 15002005262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002005294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002005325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002005364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 15002006262cu in 4.3L V6
ChevroletAuto and Light TruckSILVERADO 15002006294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002006325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002006364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 15002007294cu in 4.8L V8
ChevroletAuto and Light TruckSILVERADO 15002007325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 15002007364cu in 6.0L V8
ChevroletAuto and Light TruckSilverado 1500 Classic20074.8L V8
ChevroletAuto and Light TruckSilverado 1500 Classic20075.3L V8
ChevroletAuto and Light TruckSilverado 1500 Classic20076.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2001364cu in 6.0L V8
ChevroletTruckSilverado 1500 HD20015967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2002364cu in 6.0L V8
ChevroletTruckSilverado 1500 HD20025967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2003364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2005364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2006364cu in 6.0L V8
ChevroletAuto and Light TruckSilverado 1500 HD Classic20076.0L V8
ChevroletAuto and Light TruckSILVERADO 25001999325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 25001999364cu in 6.0L V8
ChevroletTruckSilverado 250019995300cc 5.3L V8
ChevroletTruckSilverado 250019995967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002000325cu in 5.3L V8
ChevroletAuto and Light TruckSILVERADO 25002000364cu in 6.0L V8
ChevroletTruckSilverado 250020005300cc 5.3L V8
ChevroletTruckSilverado 250020005967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002001364cu in 6.0L V8
ChevroletTruckSilverado 250020015967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002002364cu in 6.0L V8
ChevroletTruckSilverado 250020025967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002003364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002004364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2001364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2001403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 2500 HD2001496cu in 8.1L V8
ChevroletTruckSilverado 2500 HD20015967cc 6.0L V8
ChevroletTruckSilverado 2500 HD20018100cc 8.1L V8
ChevroletTruckSilverado 2500 HD20018100cc 8.1L V8 Gas
ChevroletAuto and Light TruckSILVERADO 2500 HD2002364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2002403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 2500 HD2002496cu in 8.1L V8
ChevroletTruckSilver

Replaces These Part Numbers

AC DELCO321-1749, 321-1803, 321-1813, 321-1816, 321-2123, 334-2481, 334-2481A, 334-2517
ACECA8234-4-14, CA8235-4-14
ARROWHEADADR0279, ADR0217, 400-12172
BARSANCO110-8237
CARGO112853
DELCO10464405, 10464443, 10464453, 10464456, 10480234, 10480390, 15750871, 15768830
DELPHIRM1366
DIXIEA-1549
DIXIE NEWA-1549N
EMS8237N
FAMILYAD244
J&N Electrical Products400-12172
LESTER8237, 8274
MINNPAR47-1921, 47-1964
NAPA POWER NEW1N-4801
NAPA POWER PREMIUM PLUS213-4801, 213-4807, 213-4811
NAPA POWER SUPREME13-4801, 13-4807, 13-4811
NSAALT-1500
PIC240-6410, 240-6410A, 240-6410B, 240-6418
RCP42934
REMY LIGHT DUTY21749, 21816
REMY LIGHT DUTY NEW91606, 91608
UNIPOINTALT-1500
USA INDUSTRIES8237
WAGNER423016
WAI1-2221-21DR, 1-2419-21DR
WILSON90-01-4385, 90-01-4386, 90-01-4682
WILSON HD90-01-4385
WILSON NEW90-01-4385, 90-01-4385N, 90-01-4682

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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