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Powermaster

Powermaster High-Amp Alternators

4.48 out of 5 stars 122 Customer Reviews

With modern automotive accessories, such as audio/video equipment, navigation systems, aftermarket lights, and other electrical components, the need for higher amperage alternators has increased. Powermaster has responded to this need with these high-amp alternators. They're available in several finishes to suit your style and performance needs.

Powermaster high-amp alternators feature:

* High output with excellent idle performance
* Hand-wound, custom-designed stators
* Heavy-duty regulators and rectifiers
* Gold plated battery post for better electrical connections
* Proof of performance tags

Showing In Stock Items. Show All 19 Items.

Results 1 - 11 of 11

Powermaster High-Amp Alternators 48237

Made in the USA Powermaster High-Amp Alternators 48237

Powermaster High-Amp Alternators 48237

Alternator, IGM AD244, Internal Regulator, 220 Amp, Natural, Cadillac, Chevy, GMC, Pontiac, Each

Part Number: PWM-48237

4.93 out of 5 stars ( 30 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 48969

Made in the USA Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 48969

Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 48969

Alternator, High-Amp, 220 Amps, Natural, Chevy, Each

Part Number: PWM-48969

4.69 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powermaster High-Amp Alternators 68237

Made in the USA Powermaster High-Amp Alternators 68237

Powermaster High-Amp Alternators 68237

Alternator, High-Amp, GM AD244 Case, 220 amps, 12 V, Serpentine Pulley, Offset Mount, Polished, Internal Regulator, Chevrolet, GMC, Each

Part Number: PWM-68237

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 58969

Made in the USA Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 58969

Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 58969

Alternator, High-Amp, Delco AD244 Case, 220 amps, 12 V, Serpentine Pulley, Black Powdercoated, Internal Regulator, Chevy, Each

Part Number: PWM-58969

3.44 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powermaster High-Amp Alternators 58550-4

Powermaster High-Amp Alternators 58550-4

Powermaster High-Amp Alternators 58550-4

Alternator, High-Amp, 245 amp, 12 V, 1-Wire, Serpentine, Black Finish, Denso Case, Internal Regulator with Dash Light, Cadillac, Chevy, GMC, Each

Part Number: PWM-58550-4

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Powermaster High-Amp Alternators for 1997-2013 CORVETTE - 38969

Made in the USA Powermaster High-Amp Alternators for 1997-2013 CORVETTE - 38969

Powermaster High-Amp Alternators for 1997-2013 CORVETTE - 38969

Alternator, High-Amp, 220 amp, 12 V, Serpentine, Chrome Finish, Valeo Case, Internal Regulator, Chevy, Small Block, Each

Part Number: PWM-38969

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powermaster High-Amp Alternators 57795

Made in the USA Powermaster High-Amp Alternators 57795

Powermaster High-Amp Alternators 57795

Alternator, Internal Regulator, 200 Amp, 6G, Black, Serpentine, Ford, Lincoln, Mercury, Each

Part Number: PWM-57795

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 489693

Made in the USA Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 489693

Powermaster High-Amp Alternators for 1997-2014 CORVETTE - 489693

Alternator, High-Amp, 220 Amps, Under Drive Serpentine Pulley, Natural, Chevy, Each

Part Number: PWM-489693

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Powermaster High-Amp Alternators 485503

Made in the USA Powermaster High-Amp Alternators 485503

Powermaster High-Amp Alternators 485503

Alternator, High-Amp, 245 amp, 12 V, 1-Wire, Under Drive Serpentine Pulley, Natural Finish, Denso Case, Internal Regulator, Cadillac, Chevy, GMC, Each

Part Number: PWM-485503

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Powermaster High-Amp Alternators 68550-1

Made in the USA Powermaster High-Amp Alternators 68550-1

Powermaster High-Amp Alternators 68550-1

Alternator, 245 Amp, Serpentine Pulley, Polished, Chevy, GMC, Cadillac, Each

Part Number: PWM-68550-1

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Powermaster High-Amp Alternators 37795

Made in the USA Powermaster High-Amp Alternators 37795

Powermaster High-Amp Alternators 37795

Alternator, Internal Regulator, 200 Amp, 6G, Chrome, Ford, Lincoln, Mercury, 4.6L, Each

Part Number: PWM-37795

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Powermaster High-Amp Alternators 57795

Powermaster High-Amp Alternators 57795

4.25 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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