Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010
Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010
Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010
Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010
Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010
Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010
Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010

Alternator for Caterpillar Engine - Industrial 3304 1117621, 1117624 ADR0010

Item #: 400-12334

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
  • Satisifed customers recently purchased: 1991 GMC C7000 Topkick C7H042 Cab & Chassis - Conventional 2-Door 6.6L 403Cu. In. l6; 1986 International Harvester S1954 Base 9.0L 551Cu. In. l6 DIESEL Turbocharged
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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: 400-12334

100% Brand New Aftermarket Part From DB Electrical

Product Specs

Item ConditionAftermarket Part
Unit TypeAlternator
Voltage12
RotationBI
DimensionReplacement Unit:, B+ Terminal: 1/4-28, Polarity: Negative, Notes:, 1-Wire System, Pin R Terminal,
Amperage60
RegulatorIR
Fan TypeEF
FitsDelco 20SI Alternator
Used on Agricultural, Industrial, Marine and HD Truck Applications

Applications List

Select Make & Type
MAKE TYPE MODEL YEAR ENGINE
CaterpillarEngine - Marine32081995636cu in 10.4L 8 cyl
CaterpillarEngine - Marine33061997638cu in 10.5L 6 cyl
CaterpillarEngine - Marine34061995893cu in 14.6L 6 cyl
CaterpillarEngine - Marine340819971099cu in 18.0L 8 cyl
CaterpillarEngine - Marine341219971649cu in 27.0L 12 cyl
ChevroletTruckC Series19898200cc 8.2L N T
ChevroletMedium & Heavy-Duty TruckC Series19898200cc 8.2L V8 N
ChevroletTruckC Series19903116
ChevroletTruckC Series19903116.0 Diesel
ChevroletTruckC Series19903208.0 Diesel
ChevroletMedium & Heavy-Duty TruckC Series19906600cc 6.6L L6 3116
ChevroletTruckC Series19908200cc 8.2L N T
ChevroletMedium & Heavy-Duty TruckC Series19908200cc 8.2L V8 N
ChevroletTruckC Series19913116
ChevroletTruckC Series19913116.0 Diesel
ChevroletTruckC Series19913208.0 Diesel
ChevroletMedium & Heavy-Duty TruckC Series19916600cc 6.6L L6 3116
ChevroletTruckC Series19918200cc 8.2L N T
ChevroletTruckC Series19923116
ChevroletTruckC Series19923116.0 Diesel
ChevroletTruckC Series19923208.0 Diesel
ChevroletMedium & Heavy-Duty TruckC Series19926600cc 6.6L L6 3116
ChevroletTruckC Series19928200cc 8.2L N T
ChevroletTruckC Series19933116
ChevroletTruckC Series19933208.0 Diesel
ChevroletMedium & Heavy-Duty TruckC Series19936600cc 6.6L L6 3116
ChevroletTruckC Series19938200cc 8.2L N T
ChevroletTruckC5019903116
ChevroletTruckC5019913116
ChevroletTruckC5019923116
ChevroletTruckC5019933116
ChevroletTruckC550019903116
ChevroletTruckC550019913116
ChevroletTruckC550019923116
ChevroletTruckC550019933116
ChevroletTruckC619898200cc 8.2L N T
ChevroletTruckC619903116.0 Diesel
ChevroletTruckC619908200cc 8.2L N T
ChevroletTruckC619913116.0 Diesel
ChevroletTruckC619918200cc 8.2L N T
ChevroletTruckC619923116.0 Diesel
ChevroletTruckC619928200cc 8.2L N T
ChevroletTruckC619938200cc 8.2L N T
ChevroletMedium & Heavy-Duty TruckC6019898200cc 8.2L V8 N
ChevroletTruckC6019903116
ChevroletMedium & Heavy-Duty TruckC6019908200cc 8.2L V8 N
ChevroletTruckC6019913116
ChevroletTruckC6019923116
ChevroletTruckC6019933116
ChevroletTruckC650019898200cc 8.2L N T
ChevroletTruckC650019908200cc 8.2L N T
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak19906600cc 6.6L L6 3116
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak19916600cc 6.6L L6 3116
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak19926600cc 6.6L L6 3116
ChevroletMedium & Heavy-Duty TruckC6500 Kodiak19936600cc 6.6L L6 3116
ChevroletTruckC6D19898200cc 8.2L N T
ChevroletTruckC6D19908200cc 8.2L N T
ChevroletTruckC719898200cc 8.2L N T
ChevroletTruckC719903116.0 Diesel
ChevroletTruckC719903208.0 Diesel
ChevroletTruckC719908200cc 8.2L N T
ChevroletTruckC719913116.0 Diesel
ChevroletTruckC719913208.0 Diesel
ChevroletTruckC719918200cc 8.2L N T
ChevroletTruckC719923116.0 Diesel
ChevroletTruckC719923208.0 Diesel
ChevroletTruckC719928200cc 8.2L N T
ChevroletTruckC719933208.0 Diesel
ChevroletTruckC719938200cc 8.2L N T
ChevroletMedium & Heavy-Duty TruckC7019898200cc 8.2L V8 N
ChevroletTruckC7019903116
ChevroletMedium & Heavy-Duty TruckC7019908200cc 8.2L V8 N
ChevroletTruckC7019913116
ChevroletTruckC7019923116
ChevroletTruckC7019933116
ChevroletTruckC750019898200cc 8.2L N T
ChevroletTruckC750019908200cc 8.2L N T
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak19906600cc 6.6L L6 3116
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak19916600cc 6.6L L6 3116
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak19926600cc 6.6L L6 3116
ChevroletMedium & Heavy-Duty TruckC7500 Kodiak19936600cc 6.6L L6 3116
ChevroletTruckC7D19898200cc 8.2L N T
ChevroletTruckC7D19908200cc 8.2L N T
ChevroletTruckC8019898200cc 8.2L N T
ChevroletTruckC8019903116
ChevroletTruckC8019908200cc 8.2L N T
ChevroletTruckC8019913116
ChevroletTruckC8019923116
ChevroletTruckC8019933116
ChevroletTruckC850019898200cc 8.2L N T
ChevroletTruckC850019903116
ChevroletTruckC850019908200cc 8.2L N T
ChevroletTruckC850019913116
ChevroletTruckC850019923116
ChevroletTruckC850019933116
ChevroletTruckKodiak19903116
ChevroletTruckKodiak19903208
ChevroletTruckKodiak19913116
ChevroletTruckKodiak19923116
ChevroletTruckKodiak19933116
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19903116
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19903208
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19913116
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19913208
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19918.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19923116
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19923208
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19928.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19933208
Chevrolet/GMCMedium & Heavy-Duty TruckAll Models (By Engine) - Diesel19938.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC5019903116
Chevrolet/GMCMedium & Heavy-Duty TruckC5019913116
Chevrolet/GMCMedium & Heavy-Duty TruckC5019923116
Chevrolet/GMCMedium & Heavy-Duty TruckC5019933116
Chevrolet/GMCMedium & Heavy-Duty TruckC5500 Kodiak / Topkick19903116
Chevrolet/GMCMedium & Heavy-Duty TruckC5500 Kodiak / Topkick19913116
Chevrolet/GMCMedium & Heavy-Duty TruckC5500 Kodiak / Topkick19923116
Chevrolet/GMCMedium & Heavy-Duty TruckC5500 Kodiak / Topkick19933116
Chevrolet/GMCMedium & Heavy-Duty TruckC6019898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC6019903116
Chevrolet/GMCMedium & Heavy-Duty TruckC6019908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC6019913116
Chevrolet/GMCMedium & Heavy-Duty TruckC6019923116
Chevrolet/GMCMedium & Heavy-Duty TruckC6019933116
Chevrolet/GMCMedium & Heavy-Duty TruckC6500 Kodiak / Topkick19898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC6500 Kodiak / Topkick19903116
Chevrolet/GMCMedium & Heavy-Duty TruckC6500 Kodiak / Topkick19908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC6500 Kodiak / Topkick19913116
Chevrolet/GMCMedium & Heavy-Duty TruckC6500 Kodiak / Topkick19923116
Chevrolet/GMCMedium & Heavy-Duty TruckC6500 Kodiak / Topkick19933116
Chevrolet/GMCMedium & Heavy-Duty TruckC6D19898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC6D19908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC7019898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC7019903116
Chevrolet/GMCMedium & Heavy-Duty TruckC7019908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC7019913116
Chevrolet/GMCMedium & Heavy-Duty TruckC7019923116
Chevrolet/GMCMedium & Heavy-Duty TruckC7019933116
Chevrolet/GMCMedium & Heavy-Duty TruckC7500 Kodiak / Topkick19898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC7500 Kodiak / Topkick19903116
Chevrolet/GMCMedium & Heavy-Duty TruckC7500 Kodiak / Topkick19908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC7500 Kodiak / Topkick19913116
Chevrolet/GMCMedium & Heavy-Duty TruckC7500 Kodiak / Topkick19923116
Chevrolet/GMCMedium & Heavy-Duty TruckC7500 Kodiak / Topkick19933116
Chevrolet/GMCMedium & Heavy-Duty TruckC7D19898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC7D19908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC8019898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC8019903116
Chevrolet/GMCMedium & Heavy-Duty TruckC8019908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC8019913116
Chevrolet/GMCMedium & Heavy-Duty TruckC8019923116
Chevrolet/GMCMedium & Heavy-Duty TruckC8019933116
Chevrolet/GMCMedium & Heavy-Duty TruckC8500 Kodiak / Topkick19898.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC8500 Kodiak / Topkick19903116
Chevrolet/GMCMedium & Heavy-Duty TruckC8500 Kodiak / Topkick19908.2L (N T)
Chevrolet/GMCMedium & Heavy-Duty TruckC8500 Kodiak / Topkick19913116
Chevrolet/GMCMedium & Heavy-Duty TruckC8500 Kodiak / Topkick19923116
Chevrolet/GMCMedium & Heavy-Duty TruckC8500 Kodiak / Topkick19933116
Chevrolet/GMCMedium & Heavy-Duty TruckP-Series Trucks Vans Etc.19913116
Chevrolet/GMCMedium & Heavy-Duty TruckP-Series Trucks Vans Etc.19923116
Chevrolet/GMCMedium & Heavy-Duty TruckP-Series Trucks Vans Etc.19933116
Chevrolet/GMCMedium & Heavy-Duty TruckTopkick / Kodiak19903116
Chevrolet/GMCMedium & Heavy-Duty TruckTopkick / Kodiak19903208
Chevrolet/GMCMedium & Heavy-Duty TruckTopkick / Kodiak19913116
Chevrolet/GMCMedium & Heavy-Duty TruckTopkick / Kodiak19923116
Chevrolet/GMCMedium & Heavy-Duty TruckTopkick / Kodiak19933116
CumminsEngine - Industrial855 Series198310.0L
CumminsEngine855 Series198310L
CumminsEngine - Industrial855 Series198410.0L
CumminsEngine855 Series198410L
CumminsEngine - Industrial855 Series198510.0L
CumminsEngine855 Series198510L
CumminsEngine - IndustrialB Series1980
CumminsEngine - IndustrialB Series1981
CumminsEngine - IndustrialB Series1982
CumminsEngine - IndustrialB Series1983
CumminsEngine - IndustrialB Series1984
CumminsEngine - IndustrialB Series1985
CumminsEngine - IndustrialB Series1986
CumminsEngine - IndustrialB Series1987
CumminsEngine - IndustrialB Series1988
CumminsEngine - IndustrialC Series1980
CumminsEngine - IndustrialC Series1981
CumminsEngine - IndustrialC Series1982
CumminsEngine - IndustrialC Series1983
CumminsEngine - IndustrialC Series1984
CumminsEngine - IndustrialC Series1985
CumminsEngine - IndustrialC Series1986
CumminsEngine - IndustrialC Series1987
CumminsEngine - IndustrialC Series1988
CumminsEngine - IndustrialK Series1983
CumminsEngine - IndustrialK Series1984
CumminsEngine - IndustrialK Series1985
CumminsEngine - IndustrialK Series1986
CumminsEngine - IndustrialK Series1987
CumminsEngine - IndustrialK Series1988
CumminsEngine - IndustrialK Series1989
CumminsEngine - IndustrialK Series1990
CumminsEngine - IndustrialK Series1991
CumminsEngine - IndustrialK Series1992
CumminsEngine - IndustrialL Series198310.0L
CumminsEngineL Series198310L
CumminsEngine - IndustrialL Series198314.0L
CumminsEngineL Series198314L
CumminsEngine - IndustrialL Series198410.0L
CumminsEngineL Series198410L
CumminsEngine - IndustrialL Series198414.0L
CumminsEngineL Series198414L
CumminsEngine - IndustrialL Series198510.0L
CumminsEngineL Series198510L
CumminsEngine - IndustrialL Series198514.0L
CumminsEngineL Series198514L
CumminsEngine - IndustrialL Series198610.0L
CumminsEngineL Series198610L
CumminsEngine - IndustrialL Series198614.0L
CumminsEngineL Series198614L
CumminsEngine - IndustrialL Series198710.0L
CumminsEngineL Series198710L
CumminsEngine - IndustrialL Series198714.0L
CumminsEngineL Series198714L
CumminsEngine - IndustrialL Series198810.0L
CumminsEngineL Series198810L
CumminsEngine - IndustrialL Series198814.0L
CumminsEngineL Series198814L
CumminsEngine - IndustrialL Series198910.0L
CumminsEngineL Series198910L
CumminsEngine - IndustrialL Series198914.0L
CumminsEngineL Series198914L
CumminsEngine - IndustrialL Series199010.0L
CumminsEngineL Series199010L
CumminsEngine - IndustrialL Series199014.0L
CumminsEngineL Series199014L
CumminsEngine - IndustrialL Series199110.0L
CumminsEngineL Series199110L
CumminsEngine - IndustrialL Series199114.0L
CumminsEngineL Series199114L
CumminsEngine - IndustrialL Series199210.0L
CumminsEngineL Series199210L
CumminsEngine - IndustrialL Series199214.0L
CumminsEngineL Series199214L
CumminsEngine - IndustrialL Series199310.0L
CumminsEngineL Series199310L
CumminsEngine - IndustrialL Series199314.0L
CumminsEngineL Series199314L
CumminsEngineV Series19836.2L
CumminsEngine - IndustrialV Series19836.2L / 8.3L / 9.1L
CumminsEngineV Series19838.3L
CumminsEngineV Series19839.1L
CumminsEngineV Series19846.2L
CumminsEngine - IndustrialV Series19846.2L / 8.3L / 9.1L
CumminsEngineV Series19848.3L
CumminsEngineV Series19849.1L
CumminsEngineV Series19856.2L
CumminsEngine - IndustrialV Series19856.2L / 8.3L / 9.1L
CumminsEngineV Series19858.3L
CumminsEngineV Series19859.1L
GMCTruckC Series19898200cc 8.2L N T
GMCTruckC Series19903116
GMCTruckC Series19903116.0 Diesel
GMCTruckC Series19903208.0 Diesel
GMCTruckC Series19908200cc 8.2L N T
GMCTruckC Series19913116
GMCTruckC Series19913116.0 Diesel
GMCTruckC Series19913208.0 Diesel
GMCTruckC Series19918200cc 8.2L N T
GMCTruckC Series19923116
GMCTruckC Series19923116.0 Diesel
GMCTruckC Series19923208.0 Diesel
GMCTruckC Series19928200cc 8.2L N T
GMCTruckC Series19933116
GMCTruckC Series19933208.0 Diesel
GMCTruckC Series19938200cc 8.2L N T
GMCTruckC5019903116
GMCTruckC5019913116
GMCTruckC5019923116
GMCTruckC5019933116
GMCTruckC550019903116
GMCTruckC550019913116
GMCTruckC550019923116
GMCTruckC550019933116
GMCTruckC619898200cc 8.2L N T
GMCTruckC619903116.0 Diesel
GMCTruckC619908200cc 8.2L N T
GMCTruckC619913116.0 Diesel
GMCTruckC619918200cc 8.2L N T
GMCTruckC619923116.0 Diesel
GMCTruckC619928200cc 8.2L N T
GMCTruckC619938200cc 8.2L N T
GMCTruckC6019898200cc 8.2L N T
GMCTruckC6019903116
GMCTruckC6019908200cc 8.2L N T
GMCTruckC6019913116
GMCTruckC6019923116
GMCTruckC6019933116
GMCTruckC650019898200cc 8.2L N T
GMCTruckC650019903116
GMCTruckC650019908200cc 8.2L N T
GMCTruckC650019913116
GMCTruckC650019923116
GMCTruckC650019933116
GMCTruckC6D19898200cc 8.2L N T
GMCTruckC6D19908200cc 8.2L N T
GMCTruckC719898200cc 8.2L N T
GMCTruckC719903116.0 Diesel
GMCTruckC719903208.0 Diesel
GMCTruckC719908200cc 8.2L N T
GMCTruckC719913116.0 Diesel
GMCTruckC719913208.0 Diesel
GMCTruckC719918200cc 8.2L N T
GMCTruckC719923116.0 Diesel
GMCTruckC719923208.0 Diesel
GMCTruckC719928200cc 8.2L N T
GMCTruckC719933208.0 Diesel
GMCTruckC719938200cc 8.2L N T
GMCTruckC7019898200cc 8.2L N T
GMCTruckC7019903116
GMCTruckC7019908200cc 8.2L N T
GMCTruckC7019913116
GMCTruckC7019923116
GMCTruckC7019933116
GMCTruckC750019898200cc 8.2L N T
GMCTruckC750019903116
GMCTruckC750019908200cc 8.2L N T
GMCTruckC750019913116
GMCTruckC750019923116
GMCTruckC750019933116
GMCTruckC7D19898200cc 8.2L N T
GMCTruckC7D19908200cc 8.2L N T
GMCTruckC8019898200cc 8.2L N T
GMCTruckC8019903116
GMCTruckC8019908200cc 8.2L N T
GMCTruckC8019913116
GMCTruckC8019923116
GMCTruckC8019933116
GMCTruckC850019898200cc 8.2L N T
GMCTruckC850019903116
GMCTruckC850019908200cc 8.2L N T
GMCTruckC850019913116
GMCTruckC850019923116
GMCTruckC850019933116
GMCTruckTopkick19903208
InternationalMedium & Heavy-Duty Truck145219887.3L T-444E
InternationalMedium & Heavy-Duty Truck14521988DT-360
InternationalTruck14521988DT-360
InternationalMedium & Heavy-Duty Truck145219897.3L T-444E<

Replaces These Part Numbers

AC DELCO321-666
AGCO586059M93
ARROWHEADADR0010
CARGO112989
CATERPILLAR7G7889
CUMMINS3016628, 3604473RX
DELCO10459020, 1117611, 1117612, 1117613, 1117616, 1117618, 1117620, 1117621, 1117624, 1117628, 1117641
INTL HARVESTER586986C91
J&N Electrical Products400-12025, 400-12334,400-12025R
LESTER7266, 7651
MASSEY FERGUSON586-059-M92
QUICKSILVER8M6007452
REMY LIGHT DUTY53130
WAI7266N

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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