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Powermaster High-Amp Alternators

4.51 out of 5 stars 115 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

Results 1 - 25 of 64

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

Part Number: PWM-48237

4.93 out of 5 stars ( 29 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-58237

4.2 out of 5 stars ( 10 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-48969

4.8 out of 5 stars ( 15 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-58969

3.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, High-Amp, 245 amp, 12 V, Serpentine, Natural Finish, Denso Case, Internal Regulator, Mopar, Hemi, Each

Part Number: PWM-41576

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, High-Amp, 12 V, 250 amps, Black Textured Powdercoated, Serpentine Pulley, External Ground Post, Jeep, Each

Part Number: PWM-51024WS

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, Internal Regulator, 200 Amp, 3G, Natural, Ford, Lincoln, Mercury, Each

Part Number: PWM-47764

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-41487

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, High-Amp, 245 amp, 12 V, Serpentine, Natural Finish, Denso Case, External Regulator, Dodge, Hemi, Each

Part Number: PWM-43988

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, High-Amp, Ford 6G, 12/14/16 V, 155 amps, Internal Regulator, Serpentine Pulley, Ford, Each

Part Number: PWM-48304

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-489693

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-44007

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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

Part Number: PWM-38237

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, 120 Amp, GM 17Si Case, V-Belt Pulley, Internal Regulator, Buick, Chevy, GMC, Oldsmobile, Pontiac

Part Number: PWM-7288

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, Internal Regulator, 175 Amp, 12V, 6-Groove, Black, Serpentine, Ford, Each

Part Number: PWM-851626-2R

Not Yet Reviewed

Estimated Ship Date: May 23, 2025 if ordered today

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Estimated Ship Date: May 23, 2025 if ordered today

Alternator, Internal Regulator, 1-Wire, 175 Amp, 16V, 6-Groove, Natural, Serpentine, Side Battery Post, Ford, Each

Part Number: PWM-841626-17-5

Not Yet Reviewed

Estimated Ship Date: May 20, 2025 if ordered today

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Estimated Ship Date: May 20, 2025 if ordered today

Alternator, Street Alternator, Denso Case Style, 12V, 245 amps, Decoupler Pulley, Satin Black, Serpentine, Each

Part Number: PWM-51794-1

Not Yet Reviewed

Estimated Ship Date: May 19, 2025 if ordered today

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Estimated Ship Date: May 19, 2025 if ordered today

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: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, Internal Regulator, 150 Amp, Natural, Ford, 7.3L Powerstroke, Each

Part Number: PWM-47796

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, High-Amp, 245 amp, 12 V, Serpentine, Natural, Finish, Denso Case, Internal Regulator, Ford, Modular V8, Each

Part Number: PWM-41625

Not Yet Reviewed

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternaotr, High-Amp Series, 180 Amps, Black, 12 V, Serpentine, Internal Regulator, Each

Part Number: PWM-851584WS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

Alternator, Internal Regulator, Serpentine Belt Pulley, 200 Amp, 6G, Natural, Ford, Lincoln, Mercury, Each

Part Number: PWM-47795

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/12/2025

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Estimated Ship Date: Monday 5/12/2025

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