Alternator for Autocar Truck, Mack, Western Star White, 375057R91 400-12033
Alternator for Autocar Truck, Mack, Western Star White, 375057R91 400-12033
Alternator for Autocar Truck, Mack, Western Star White, 375057R91 400-12033
Alternator for Autocar Truck, Mack, Western Star White, 375057R91 400-12033

Alternator for Autocar Truck, Mack, Western Star White, 375057R91 400-12033

Item #: 400-12033

30-DAY RETURN POLICY

If your order arrives and it’s not exactly what you want, you may return it within 30 days for a refund. We know that people sometimes order a part and then discover it’s not exactly the one they need for the repair. We understand and want to work with you. Just make sure the item is in its original packaging and in good condition free of damage.

When a returned product comes back to us, we’ll check it over to make sure it’s in ‘Like New’ condition and free from damage such as dents, scratches, cracks, abuse, defacement or indication of removed screws/fasteners or seals. Return processing may take up to 5 business days from the time your product is received by DB Electrical.

To return a product, simply click here to start the process.

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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: 400-12033

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationBI
Amperage65
RegulatorIR
FitsDELCO 27SI ALTERNATOR

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins NTA-370
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins NTC-335
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins NTC-350
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973Cummins Super 250
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1973DD 8V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NTA-370
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NTC-335
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NTC-350
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins Super 250
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 8V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3306
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3406
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins KT-450
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NTA-400
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NTC-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NTC-350
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins PT-300
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 8V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 8V-92
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3306
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3406
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins KT-450
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NTA-400
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NTC-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NTC-250
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins PT-300
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-92
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 8V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3306
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3406
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins KT-450
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NTA-400
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NTC-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NTC-250
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins PT-300
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-92
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 8V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3306
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3406
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins KT-450
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NTA-400
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NTC-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NTC-250
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins PT-300
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-92
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 8V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 1674
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 1693T / TA
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3306
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3406
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins KT-450
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NH-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NTA-400
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NTC-230
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NTC-250
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NTC-290
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins PT-270
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins PT-300
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 12V-71N
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-71
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-92
AUTOCARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 8V-71
MACKMedium & Heavy-Duty TruckDM / DMM Series1972All Engines
MACKMedium & Heavy-Duty TruckDM / DMM Series1973All Engines
MACKMedium & Heavy-Duty TruckDM / DMM Series1974All Engines
MACKMedium & Heavy-Duty TruckF / FL / FS Series1972Cummins NTA / NTC
MACKMedium & Heavy-Duty TruckF / FL / FS Series1972Cummins Super 250
MACKMedium & Heavy-Duty TruckF / FL / FS Series1972Cummins V-903
MACKMedium & Heavy-Duty TruckF / FL / FS Series1972DD 8V-71 (T)
MACKMedium & Heavy-Duty TruckF / FL / FS Series1972Mack Engines
MACKMedium & Heavy-Duty TruckF / FL / FS Series1973Cummins NTA / NTC
MACKMedium & Heavy-Duty TruckF / FL / FS Series1973Cummins Super 250
MACKMedium & Heavy-Duty TruckF / FL / FS Series1973Cummins V-903
MACKMedium & Heavy-Duty TruckF / FL / FS Series1973DD 8V-71 (T)
MACKMedium & Heavy-Duty TruckF / FL / FS Series1973Mack Engines
MACKMedium & Heavy-Duty TruckF / FL / FS Series1974Cummins NTA / NTC
MACKMedium & Heavy-Duty TruckF / FL / FS Series1974Cummins Super 250
MACKMedium & Heavy-Duty TruckF / FL / FS Series1974Cummins V-903
MACKMedium & Heavy-Duty TruckF / FL / FS Series1974DD 8V-71 (T)
MACKMedium & Heavy-Duty TruckF / FL / FS Series1974Mack Engines
MACKMedium & Heavy-Duty TruckMB Series1972Cummins V8-210
MACKMedium & Heavy-Duty TruckMB Series1972Mack END / ENDT
MACKMedium & Heavy-Duty TruckMB Series1973Cummins V8-210
MACKMedium & Heavy-Duty TruckMB Series1973Mack END / ENDT
MACKMedium & Heavy-Duty TruckMB Series1974Cummins V8-210
MACKMedium & Heavy-Duty TruckMB Series1974Mack END / ENDT
MACKMedium & Heavy-Duty TruckR Series1972Cummins N / NH / NT
MACKMedium & Heavy-Duty TruckR Series1972Cummins Super 250
MACKMedium & Heavy-Duty TruckR Series1972Cummins V8-210
MACKMedium & Heavy-Duty TruckR Series1972Cummins V-903
MACKMedium & Heavy-Duty TruckR Series1972Mack Engines
MACKMedium & Heavy-Duty TruckR Series1973Cummins N / NH / NT
MACKMedium & Heavy-Duty TruckR Series1973Cummins Super 250
MACKMedium & Heavy-Duty TruckR Series1973Cummins V8-210
MACKMedium & Heavy-Duty TruckR Series1973Cummins V-903
MACKMedium & Heavy-Duty TruckR Series1973Mack Engines
MACKMedium & Heavy-Duty TruckR Series1974Cummins N / NH / NT
MACKMedium & Heavy-Duty TruckR Series1974Cummins Super 250
MACKMedium & Heavy-Duty TruckR Series1974Cummins V8-210
MACKMedium & Heavy-Duty TruckR Series1974Cummins V-903
MACKMedium & Heavy-Duty TruckR Series1974Mack Engines
MACKMedium & Heavy-Duty TruckU Series1972Cummins V-903
MACKMedium & Heavy-Duty TruckU Series1972Mack Engines
MACKMedium & Heavy-Duty TruckU Series1973Cummins V-903
MACKMedium & Heavy-Duty TruckU Series1973Mack Engines
MACKMedium & Heavy-Duty TruckU Series1974Cummins V-903
MACKMedium & Heavy-Duty TruckU Series1974Mack Engines
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 3208
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 12V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-53
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3208
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 12V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-53
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3208
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 12V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-53
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3208
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 12V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-53
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3208
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 12V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-53
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 12V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-53
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 8V-71
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 8V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982Caterpillar 3306
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982Caterpillar 3406
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins K / KT
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins NH / NTA / NTC
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins V-903
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins VT-555
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982DD 6V-92
WESTERN STARMedium & Heavy-Duty TruckAll Models (By Engine)1982DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1974DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1975DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1976DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1977DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1978DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1979DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1980DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 8V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1981DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982DD 6V-53
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1982DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1983DD 8V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Caterpillar 3208
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Caterpillar 3306
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Caterpillar 3406
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Cummins K / KT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Cummins NH.NTA NTC PT
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Cummins VT-555
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984Cummins VT-903
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984DD 6V-71
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984DD 6V-92
WHITEMedium & Heavy-Duty TruckAll Models (By Engine)1984DD 8V-92

Replaces These Part Numbers

AC DELCO321-604
ARROWHEAD400-12033
CARGO112303
CUMMINS3603852RX
DELCO10463074, 1100075, 1100076, 1100082, 1100083, 1100088, 1100214, 1105461, 1105471
INTL HARVESTER375057R91
J&N Electrical Products400-12033, 400-12033R
LESTER7136
WAI1-1774-00DR, 1-1775-00DR, 7136N
WESTERN STAR02-7014933, 02-7014934

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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