1991-1993 Chevy K2500 High Output Alternator

Available Amperages: 320amp, 240amp, 170amp

• Chevrolet            C3500HD             1991-1993           V8 7.4L 454CID 
• Chevrolet            C1500    1990-1993           V8 7.4L 454CID 
• Chevrolet            C2500    1991-1993           V8 7.4L 454CID 
• Chevrolet            C2500 Suburban               1992-1993           V8 7.4L 454CID 
• Chevrolet            C3500    1988-1993           V8 7.4L 454CID 
• Chevrolet            K2500    1991-1993           V8 7.4L 454CID 
• Chevrolet            K2500 Suburban               1992-1993           V8 7.4L 454CID 
• Chevrolet            K3500    1988-1993           V8 7.4L 454CID 
• Chevrolet            R2500    1989      V8 7.4L 454CID 
• Chevrolet            R2500 Suburban               1989-1991           V8 7.4L 454CID 
• Chevrolet            R3500    1991      V8 5.7L 350CID 
• Chevrolet            V3500    1991      V8 5.7L 350CID 
• Chevrolet            G30        1988-1991           V8 7.4L 454CID 
• GMC      C3500HD             1991-1993           V8 7.4L 454CID 
• GMC      C2500    1991-1993           V8 7.4L 454CID 
• GMC      C2500 Suburban               1992-1993           V8 7.4L 454CID 
• GMC      C3500    1988-1993           V8 7.4L 454CID 
• GMC      K2500 Suburban               1992      V8 7.4L 454CID 
• GMC      K2500 Suburban               1992      V8 7.4L 454CID 
• GMC      K2500 Suburban               1993      V8 7.4L 454CID 
• GMC      K2500 Suburban               1993      V8 7.4L 454CID 
• GMC      K3500    1988-1993           V8 7.4L 454CID 
• GMC      R2500    1989      V8 7.4L 454CID 
• GMC      R2500 Suburban               1989-1991           V8 7.4L 454CID 
• GMC      R3500    1991      V8 5.7L 350CID 
• GMC      V3500    1991      V8 5.7L 350CID 
• GMC      G3500   1988-1991           V8 7.4L 454CID 

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.

https://autotechengineeringusa.com/powder_coat_color_chart