1980-1985 Cadillac Fleetwood High Output Alternator

Available Amperages: 300amp, 240amp, 180amp

• Cadillac Commercial Chassis        1981-1985           V8 6.0L 368CID                
• Cadillac Fleetwood           1980-1985           V6 4.1L 252CID                
• Cadillac Fleetwood           1985      V8 5.7L 350CID 
• Cadillac DeVille  1980-1984           V6 4.1L 252CID 
• Cadillac Commercial Chassis        1980      V8 6.0L 368CID 
• Cadillac Fleetwood           1981      V6 4.1L 252CID 
• Cadillac Eldorado              1980-1985           V6 4.1L 252CID 
• Cadillac Eldorado              1985      V8 5.7L 350CID 
• Cadillac Seville    1980-1985           V6 4.1L 252CID 
• Cadillac Seville    1985      V8 5.7L 350CID 
• Chevrolet            B60        1980-1983           V8 5.7L 350CID 
• Chevrolet            P30        1984-1985           L6 4.8L 292CID  
• Chevrolet            B60        1980-1983           V8 6.0L 366CID 
• GMC      B6000    1980-1983           V8 5.7L 350CID 
• GMC      B6000    1980-1893           V8 6.0L 366CID 
• GMC      P3500    1984-1985           L6 4.8L 292CID  

Small Case Alternators                  Large Case Alternators

(Alts smaller than 370)                  (Alts 370 and larger)
160amps @ 650 rpms                   220amps at 650 rpms
Full amps @ 1800 rpms                Full amps at 1800rpms

AutoTech Engineering Alternators require a .5 inch smaller belt than your OEM Alternator

AutoTech Engineering alternators need a minimum of 650rpm to charge.

Unless otherwise quoted or instructed, our units come with the OEM voltage output for plug-and-play alternators. The quoted voltage settings are already built into the alternator's voltage regulator. Remember that in PCM- and ECU-controlled vehicles, the vehicle's “brain/computer” controls the voltage.

What is a Bypass?
If you choose to have a bypass, you are wiring around the PCM or ECU voltage control. This allows us to customize the charging voltage beyond what the vehicle’s computer normally permits. In most cases, the battery warning light will remain illuminated.

Bypass charging voltage: 14.8V.

Important: A PCM/ECU bypass is required when using the boosted harness.

Need help wiring your bypass or have questions? Find out more here:
Tutorial videos & Frequently Asked Questions

Warranty: One year on parts and lifetime labor.

Order Time Frames
Build time is 14 days.
Powder Coating adds up to 5 business days
Shipping takes 5-7 days

If you use Klarna, Sezzle, or Affirm, please allow an additional seven days for processing.

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