Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164
Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164
Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164
Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164
Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164
Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164
Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164

Alternator for Chevrolet Truck S10 Blazer 2902220020, 8104630340 ADR0164

Item #: 400-12234

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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 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: 400-12234

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Part TypeUNIT
Voltage12
RotationCW
Amperage100
Pulley Class1255
RegulatorIR
Fan TypeEF
FitsCHEVROLET / GMC LT TRUCKS 1987-91
ISUZU 1989-94
DELCO CS130 3:00 PLUG
6-GROOVE PULLEY 57mm OD
NOTE: OE USED PLASTIC TOLERANCE RING (LATE)

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
BuickAuto and Light TruckCENTURY1987151cu in 2.5L L4
BuickAuto and Light TruckCENTURY1987173cu in 2.8L V6
BuickAuto and Light TruckCENTURY1988151cu in 2.5L L4
BuickAuto and Light TruckCENTURY1989151cu in 2.5L L4
BuickAuto and Light TruckCENTURY1990151cu in 2.5L L4
BuickAuto and Light TruckCENTURY1991151cu in 2.5L L4
BuickAuto and Light TruckCENTURY1992151cu in 2.5L L4
BuickAuto and Light TruckSKYLARK1988138cu in 2.3L L4
BuickAuto and Light TruckSKYLARK1989138cu in 2.3L L4
BuickAuto and Light TruckSKYLARK1990138cu in 2.3L L4
BuickAuto and Light TruckSKYLARK1991138cu in 2.3L L4
BuickAuto and Light TruckSKYLARK1992138cu in 2.3L L4
ChevroletAuto and Light TruckASTRO VAN1987151cu in 2.5L L4
ChevroletAuto and Light TruckASTRO VAN1988151cu in 2.5L L4
ChevroletAuto and Light TruckASTRO VAN1989151cu in 2.5L L4
ChevroletAuto and Light TruckASTRO VAN1990151cu in 2.5L L4
ChevroletAuto and Light TruckBERETTA1990140cu in 2.3L L4
ChevroletAuto and Light TruckBERETTA1991140cu in 2.3L L4
ChevroletAuto and Light TruckBERETTA1992140cu in 2.3L L4
ChevroletAuto and Light TruckCAMARO1987173cu in 2.8L V6
ChevroletAuto and Light TruckCAMARO1988173cu in 2.8L V6
ChevroletAuto and Light TruckCAMARO1989173cu in 2.8L V6
ChevroletAuto and Light TruckCAMARO1990189cu in 3.1L V6
ChevroletAuto and Light TruckCAMARO1991189cu in 3.1L V6
ChevroletAuto and Light TruckCAMARO1992189cu in 3.1L V6
ChevroletAuto and Light TruckCELEBRITY1987151cu in 2.5L L4
ChevroletAuto and Light TruckCELEBRITY1987173cu in 2.8L V6
ChevroletAuto and Light TruckCELEBRITY1988151cu in 2.5L L4
ChevroletAuto and Light TruckCELEBRITY1989151cu in 2.5L L4
ChevroletAuto and Light TruckCELEBRITY1990151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1987151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1988151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1989151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1990151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1991151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1992151cu in 2.5L L4
ChevroletAuto and Light TruckLLV (POSTAL VEHICLE)1993151cu in 2.5L L4
ChevroletAuto and Light TruckLUMINA1990151cu in 2.5L L4
ChevroletAuto and Light TruckLUMINA1991151cu in 2.5L L4
ChevroletAuto and Light TruckLUMINA1991207cu in 3.4L V6
ChevroletAuto and Light TruckLUMINA1992151cu in 2.5L L4
ChevroletTruckS1019872800cc 2.8L V6
ChevroletTruckS1019882800cc 2.8L V6
ChevroletTruckS1019892800cc 2.8L V6
ChevroletTruckS1019902800cc 2.8L V6
ChevroletTruckS1019912800cc 2.8L V6
ChevroletTruckS1019922800cc 2.8L V6
ChevroletTruckS1019932800cc 2.8L V6
ChevroletAuto and Light TruckS10 BLAZER1987151cu in 2.5L L4
ChevroletAuto and Light TruckS10 BLAZER1987173cu in 2.8L V6
ChevroletTruckS10 Blazer19872800cc 2.8L V6
ChevroletAuto and Light TruckS10 BLAZER1988151cu in 2.5L L4
ChevroletAuto and Light TruckS10 BLAZER1988173cu in 2.8L V6
ChevroletTruckS10 Blazer19882800cc 2.8L V6
ChevroletAuto and Light TruckS10 BLAZER1989173cu in 2.8L V6
ChevroletTruckS10 Blazer19892800cc 2.8L V6
ChevroletAuto and Light TruckS10 BLAZER1990173cu in 2.8L V6
ChevroletTruckS10 Blazer19902800cc 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1987151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1987173cu in 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1988151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1988173cu in 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1989151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1989173cu in 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1990151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1990173cu in 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1991151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1991173cu in 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1992151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1992173cu in 2.8L V6
ChevroletAuto and Light TruckS10 PICKUP1993151cu in 2.5L L4
ChevroletAuto and Light TruckS10 PICKUP1993173cu in 2.8L V6
GMCTruckS1519872800cc 2.8L V6
GMCTruckS1519882800cc 2.8L V6
GMCTruckS1519892800cc 2.8L V6
GMCTruckS1519902800cc 2.8L V6
GMCTruckS15 Jimmy19872800cc 2.8L V6
GMCTruckS15 Jimmy19882800cc 2.8L V6
GMCTruckS15 Jimmy19892800cc 2.8L V6
GMCAuto and Light TruckS-15 JIMMY1987151cu in 2.5L L4
GMCAuto and Light TruckS-15 JIMMY1987173cu in 2.8L V6
GMCAuto and Light TruckS-15 JIMMY1988151cu in 2.5L L4
GMCAuto and Light TruckS-15 JIMMY1988173cu in 2.8L V6
GMCAuto and Light TruckS-15 JIMMY1989173cu in 2.8L V6
GMCAuto and Light TruckS-15 PICKUP1987151cu in 2.5L L4
GMCAuto and Light TruckS-15 PICKUP1987173cu in 2.8L V6
GMCAuto and Light TruckS-15 PICKUP1988151cu in 2.5L L4
GMCAuto and Light TruckS-15 PICKUP1988173cu in 2.8L V6
GMCAuto and Light TruckS-15 PICKUP1989151cu in 2.5L L4
GMCAuto and Light TruckS-15 PICKUP1989173cu in 2.8L V6
GMCAuto and Light TruckS-15 PICKUP1990151cu in 2.5L L4
GMCAuto and Light TruckS-15 PICKUP1990173cu in 2.8L V6
GMCAuto and Light TruckSAFARI VAN1987151cu in 2.5L L4
GMCAuto and Light TruckSAFARI VAN1988151cu in 2.5L L4
GMCAuto and Light TruckSAFARI VAN1989151cu in 2.5L L4
GMCAuto and Light TruckSAFARI VAN1990151cu in 2.5L L4
GMCAuto and Light TruckSONOMA1991151cu in 2.5L L4
GMCAuto and Light TruckSONOMA1991173cu in 2.8L V6
GMCTruckSonoma19912800cc 2.8L V6
GMCAuto and Light TruckSONOMA1992151cu in 2.5L L4
GMCAuto and Light TruckSONOMA1992173cu in 2.8L V6
GMCTruckSonoma19922800cc 2.8L V6
GMCAuto and Light TruckSONOMA1993151cu in 2.5L L4
GMCAuto and Light TruckSONOMA1993173cu in 2.8L V6
GMCTruckSonoma19932800cc 2.8L V6
GMCTruckSonoma Base19922800cc 2.8L V6
GMCTruckSonoma SLE19922800cc 2.8L V6
IsuzuAuto and Light TruckPICKUP19913.1L
IsuzuAuto and Light TruckPICKUP19923.1L
IsuzuAuto and Light TruckPICKUP19933.1L
IsuzuAuto and Light TruckPICKUP19943.1L
IsuzuAuto and Light TruckRODEO19913.1L
IsuzuAuto and Light TruckRODEO19923.1L
IsuzuAuto and Light TruckTROOPER19892.8L
IsuzuAuto and Light TruckTROOPER19902.8L
IsuzuAuto and Light TruckTROOPER19912.8L
OldsmobileAuto and Light TruckACHIEVA1992138cu in 2.3L L4
OldsmobileAuto and Light TruckCALAIS1987138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS CALAIS1988138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS CALAIS1989138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS CALAIS1990138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS CALAIS1991138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS CIERA1987151cu in 2.5L L4
OldsmobileAuto and Light TruckCUTLASS CIERA1987173cu in 2.8L V6
OldsmobileAuto and Light TruckCUTLASS CIERA1988151cu in 2.5L L4
OldsmobileAuto and Light TruckCUTLASS CIERA1989151cu in 2.5L L4
OldsmobileAuto and Light TruckCUTLASS CIERA1990151cu in 2.5L L4
OldsmobileAuto and Light TruckCUTLASS CIERA1991151cu in 2.5L L4
OldsmobileAuto and Light TruckCUTLASS CIERA1992151cu in 2.5L L4
OldsmobileAuto and Light TruckCUTLASS SUPREME1990138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS SUPREME1991138cu in 2.3L L4
OldsmobileAuto and Light TruckCUTLASS SUPREME1991207cu in 3.4L V6
PontiacAuto and Light Truck60001987151cu in 2.5L L4
PontiacAuto and Light Truck60001987173cu in 2.8L V6
PontiacAuto and Light Truck60001988151cu in 2.5L L4
PontiacAuto and Light Truck60001989151cu in 2.5L L4
PontiacAuto and Light Truck60001990151cu in 2.5L L4
PontiacAuto and Light Truck60001991151cu in 2.5L L4
PontiacAuto and Light TruckFIERO1987151cu in 2.5L L4
PontiacAuto and Light TruckFiero19872474cc 2.5L L4
PontiacAuto and Light TruckFIERO1988151cu in 2.5L L4
PontiacAuto and Light TruckFiero19882474cc 2.5L L4
PontiacAuto and Light TruckFIREBIRD1987173cu in 2.8L V6
PontiacAuto and Light TruckFIREBIRD1988173cu in 2.8L V6
PontiacAuto and Light TruckFIREBIRD1989173cu in 2.8L V6
PontiacAuto and Light TruckFIREBIRD1990189cu in 3.1L V6
PontiacAuto and Light TruckFIREBIRD1991189cu in 3.1L V6
PontiacAuto and Light TruckFIREBIRD1992189cu in 3.1L V6
PontiacAuto and Light TruckGRAND AM1988138cu in 2.3L L4
PontiacAuto and Light TruckGRAND AM1989138cu in 2.3L L4
PontiacAuto and Light TruckGRAND AM1990138cu in 2.3L L4
PontiacAuto and Light TruckGRAND AM1991138cu in 2.3L L4
PontiacAuto and Light TruckGRAND AM1992138cu in 2.3L L4
PontiacAuto and Light TruckGRAND PRIX1990138cu in 2.3L L4
PontiacAuto and Light TruckGRAND PRIX1991138cu in 2.3L L4
PontiacAuto and Light TruckGRAND PRIX1991207cu in 3.4L V6

Replaces These Part Numbers

AC DELCO321-1085, 321-332, 321-455, 321-599, 334-1912
ARROWHEADADR0164
CARGO111202
DELCO10463020, 10463034, 10463163, 10463367, 10479806, 10479920, 10479974, 1101259, 1102617
DELPHIRM1166, RM1167
HOLDEN409
ISUZU2902220020, 8104630340, 8104630341
LESTER7860-3, 7880-3, 7905-3, 7980-3
NSAALT-1311A
WAI1-1250-11DR, 1-1625-12DR

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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