400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO
400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO
400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO
400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO
400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO
400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO
400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO

400-12478 Alternator for Buick Rainier 2004-2006 AD244 HO

Item #: 400-12478

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DB Electrical alternators are highly engineered for excellence in performance.
  • 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
DB Electrical keeps vehicles of every shape and size moving forward – from mowers, motorcycles and ATVs to automobiles, tractors, pickups and large commercial trucks. We work directly with factories to ensure each component is manufactured to our exacting quality control standards. But because there is no middleman, we can offer these exceptional-quality electrical components at low factory direct prices.

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 for better charging and longer life under high-heat environments.
  • Depth of Inventory – Find both common and hard-to-find alternators for virtually any type of vehicle to travel over road, trail or water.
  • 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 – 1-Year Warranty
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: 400-12478

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationCW
Amperage250
Clock12
Pulley ClassS6
RegulatorIR
Fan TypeIF

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
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
CadillacTruckEscalade20055967cc 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 EXT2003364cu in 6.0L V8
CadillacAuto and Light TruckESCALADE EXT2004364cu in 6.0L V8
ChevroletAuto and Light TruckAVALANCHE 15002003325cu in 5.3L V8
ChevroletTruckAvalanche 150020035300cc 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 15002004325cu in 5.3L V8
ChevroletTruckAvalanche 150020045300cc 5.3L V8
ChevroletAuto and Light TruckAVALANCHE 25002003496cu in 8.1L V8
ChevroletTruckAvalanche 250020038100cc 8.1L V8
ChevroletAuto and Light TruckAVALANCHE 25002004496cu in 8.1L V8
ChevroletTruckAvalanche 250020048100cc 8.1L V8
ChevroletTruckAvalanche 250020058100cc 8.1L V8
ChevroletTruckAvalanche 250020068100cc 8.1L V8
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
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 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 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 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 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 250020066600cc 6.6L V8 DIESEL
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 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 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 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 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 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 450020105967cc 6.0L V8
ChevroletAuto and Light TruckExpress 450020106600cc 6.6L V8 DIESEL
ChevroletAuto and Light TruckExpress Cargo20105967cc 6.0L 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
ChevroletAuto and Light TruckEXPRESS VANS2004262cu in 4.3L V6
ChevroletAuto and Light TruckEXPRESS VANS2004294cu in 4.8L V8
ChevroletAuto and Light TruckEXPRESS VANS2004323cu in 5.3L V8
ChevroletAuto and Light TruckEXPRESS VANS2004364cu in 6.0L V8
ChevroletTruckK Series20034300cc 4.3L V6
ChevroletTruckK Series20034800cc 4.8L V8
ChevroletTruckK Series20035300cc 5.3L V8
ChevroletTruckK Series20036000cc 6L V8
ChevroletTruckK Series20036600cc 6.6L V8 Diesel
ChevroletTruckK Series20038100cc 8.1L V8
ChevroletTruckK Series20044300cc 4.3L V6
ChevroletTruckK Series20044800cc 4.8L V8
ChevroletTruckK Series20045300cc 5.3L V8
ChevroletTruckK Series20046000cc 6L V8
ChevroletTruckK Series20046600cc 6.6L V8 Diesel
ChevroletTruckK Series20048100cc 8.1L V8
ChevroletTruckK Series20056000cc 6L V8
ChevroletTruckK Series20056600cc 6.6L V8 Diesel
ChevroletTruckK Series20058100cc 8.1L V8
ChevroletTruckK Series20066000cc 6L V8
ChevroletTruckK Series20066600cc 6.6L V8 Diesel
ChevroletTruckK Series20068100cc 8.1L V8
ChevroletTruckK Series20076000cc 6L V8
ChevroletTruckK Series20078100cc 8.1L V8
ChevroletTruckR Series20034300cc 4.3L V6
ChevroletTruckR Series20034800cc 4.8L V8
ChevroletTruckR Series20035300cc 5.3L V8
ChevroletTruckR Series20036000cc 6L V8
ChevroletTruckR Series20036600cc 6.6L V8 Diesel
ChevroletTruckR Series20038100cc 8.1L V8
ChevroletTruckR Series20044300cc 4.3L V6
ChevroletTruckR Series20044800cc 4.8L V8
ChevroletTruckR Series20045300cc 5.3L V8
ChevroletTruckR Series20046000cc 6L V8
ChevroletTruckR Series20046600cc 6.6L V8 Diesel
ChevroletTruckR Series20048100cc 8.1L V8
ChevroletTruckR Series20056000cc 6L V8
ChevroletTruckR Series20056600cc 6.6L V8 Diesel
ChevroletTruckR Series20058100cc 8.1L V8
ChevroletTruckR Series20066000cc 6L V8
ChevroletTruckR Series20066600cc 6.6L V8 Diesel
ChevroletTruckR Series20068100cc 8.1L V8
ChevroletTruckR Series20076000cc 6L V8
ChevroletTruckR Series20078100cc 8.1L 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
ChevroletTruckSilverado 150020034300cc 4.3L V6
ChevroletTruckSilverado 150020034800cc 4.8L V8
ChevroletTruckSilverado 150020035300cc 5.3L V8
ChevroletTruckSilverado 150020035967cc 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
ChevroletTruckSilverado 150020044300cc 4.3L V6
ChevroletTruckSilverado 150020044800cc 4.8L V8
ChevroletTruckSilverado 150020045300cc 5.3L V8
ChevroletTruckSilverado 150020045967cc 4WD 6.0L V8
ChevroletTruckSilverado 150020045967cc AWD 6.0L V8
ChevroletAuto and Light TruckSILVERADO 15002005364cu in 6.0L V8
ChevroletTruckSilverado 150020055967cc 6.0L V8
ChevroletTruckSilverado 150020065967cc 6.0L V8
ChevroletTruckSilverado 150020075967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2003364cu in 6.0L V8
ChevroletTruckSilverado 1500 HD20035967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 1500 HD2005364cu in 6.0L V8
ChevroletTruckSilverado 1500 HD20055967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002003364cu in 6.0L V8
ChevroletTruckSilverado 250020035967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 25002004364cu in 6.0L V8
ChevroletTruckSilverado 250020045967cc 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2003364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2003403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 2500 HD2003496cu in 8.1L V8
ChevroletTruckSilverado 2500 HD20035967cc 6.0L V8
ChevroletTruckSilverado 2500 HD20038100cc 8.1L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2004364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2004403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 2500 HD2004496cu in 8.1L V8
ChevroletTruckSilverado 2500 HD20045967cc 6.0L V8
ChevroletTruckSilverado 2500 HD20048100cc 8.1L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2005364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 2500 HD2005403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 2500 HD2005496cu in 8.1L V8
ChevroletTruckSilverado 2500 HD20055967cc 6.0L V8
ChevroletTruckSilverado 2500 HD20058100cc 8.1L V8
ChevroletTruckSilverado 2500 HD20065967cc 6.0L V8
ChevroletTruckSilverado 2500 HD20068100cc 8.1L V8
ChevroletTruckSilverado 2500 HD20075967cc 6.0L V8
ChevroletTruckSilverado 2500 HD20078100cc 8.1L V8
ChevroletAuto and Light TruckSILVERADO 35002003364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 35002003403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 35002003496cu in 8.1L V8
ChevroletTruckSilverado 350020035967cc 6.0L V8
ChevroletTruckSilverado 350020036599cc 4WD 6.6L V8
ChevroletTruckSilverado 350020038100cc 8.1L V8
ChevroletAuto and Light TruckSILVERADO 35002004364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 35002004403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 35002004496cu in 8.1L V8
ChevroletTruckSilverado 350020045967cc 6.0L V8
ChevroletTruckSilverado 350020046599cc 4WD 6.6L V8
ChevroletTruckSilverado 350020046599cc 6.6L V8
ChevroletTruckSilverado 350020048100cc 8.1L V8
ChevroletAuto and Light TruckSILVERADO 35002005364cu in 6.0L V8
ChevroletAuto and Light TruckSILVERADO 35002005403cu in 6.6L V8 Diesel
ChevroletAuto and Light TruckSILVERADO 35002005496cu in 8.1L V8
ChevroletTruckSilverado 350020055967cc 6.0L V8
ChevroletTruckSilverado 350020056599cc 6.6L V8
ChevroletTruckSilverado 350020058100cc 8.1L V8
ChevroletTruckSilverado 350020065967cc 6.0L V8
ChevroletTruckSilverado 350020066599cc 6.6L V8
ChevroletTruckSilverado 350020068100cc 8.1L V8
ChevroletTruckSilverado 350020075967cc 6.0L V8
ChevroletTruckSilverado 350020078100cc 8.1L V8
ChevroletAuto and Light TruckSSR2003325cu in 5.3L V8
ChevroletTruckSSR20035300cc 5.3L V8
ChevroletAuto and Light TruckSSR2004325cu in 5.3L V8
ChevroletTruckSSR20045300cc 5.3L V8
ChevroletAuto and Light TruckSSR2005364cu in 6.0L V8
ChevroletTruckSSR20056000cc 6.0L V8
ChevroletAuto and Light TruckSUBURBAN2003323cu in 5.3L V8
ChevroletAuto and Light TruckSUBURBAN2003364cu in 6.0L V8
ChevroletAuto and Light TruckSUBURBAN2003496cu in 8.1L V8
ChevroletAuto and Light TruckSuburban20036000cc 6L V8
ChevroletAuto and Light TruckSuburban20038100cc 8.1L V8
ChevroletAuto and Light TruckSUBURBAN2004323cu in 5.3L V8
ChevroletAuto and Light TruckSUBURBAN2004364cu in 6.0L V8
ChevroletAuto and Light TruckSUBURBAN2004496cu in 8.1L V8
ChevroletAuto and Light TruckSuburban20046000cc 6L V8
ChevroletAuto and Light TruckSuburban20048100cc 8.1L V8
ChevroletAuto and Light TruckSUBURBAN2005364cu in 6.0L V8
ChevroletAuto and Light TruckSUBURBAN2005496cu in 8.1L V8
ChevroletAuto and Light TruckSuburban20056000cc 6L V8
ChevroletAuto and Light TruckSuburban20058100cc 8.1L V8
ChevroletAuto and Light TruckSuburban20066000cc 6L V8
ChevroletAuto and Light TruckSuburban20068100cc 8.1L V8
ChevroletAuto and Light TruckSuburban 150020035300cc 5.3L V8
ChevroletAuto and Light TruckSuburban 150020045300cc 5.3L V8
ChevroletAuto and Light TruckSuburban 150020065967cc 6.0L V8
ChevroletAuto and Light TruckSuburban 250020035967cc 6.0L V8
ChevroletAuto and Light TruckSuburban 250020038100cc 8.1L V8
ChevroletAuto and Light TruckSuburban 250020045967cc 6.0L V8
ChevroletAuto and Light TruckSuburban 250020048100cc 8.1L V8
ChevroletAuto and Light TruckSuburban 250020055967cc 4WD 6.0L V8
ChevroletAuto and Light TruckSuburban 250020055967cc RWD 6.0L V8
ChevroletAuto and Light TruckSuburban 250020058100cc 4WD 8.1L V8
ChevroletAuto and Light TruckSuburban 250020058100cc RWD 8.1L V8
ChevroletAuto and Light TruckSuburban 25002006

Replaces These Part Numbers

ARROWHEAD400-12478
FAMILYAD244 HO
J&N Electrical Products400-12478

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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