Powermaster Street Alternators

4.63 out of 5 stars 1799 Customer Reviews

Powermaster street alternators feature all of the quality construction and dependability the company is famous for. The "electrical generators" are available in a variety of amperages and styles, allowing you to choose the best model for your specific ride and the accessories you run. So whether you need an alternator for your truck, hot rod, musclecar, sport compact, or audio competition vehicle, Powermaster gives you the power you need to get it started and keep it going.

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Powermaster Street Alternators 37861

Powermaster Street Alternators 37861

Alternator, Internal Regulator, 140 Amp, Chrome Plated, Left Offset, Chevy, GMC, Pontiac, Each

Part Number: PWM-37861

4.38 out of 5 stars ( 21 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 857295-17.5

Alternator, Street Alternator, GM 10SI/10DN/12SI Style, 16V, 175 amps, Black, V-Belt Pulley, Each

Part Number: PWM-857295-175

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 47802

Alternator, Internal Regulator, 140 Amp, Natural, Center Offset, Chevy, GMC, Oldsmobile, Pontiac, Straight Bolt Pattern, Each

Part Number: PWM-47802

4.56 out of 5 stars ( 16 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 477581

Alternator, Street Alternator, Ford 3G Style, 12V, 140 amps, Natural, Serpentine Pulley, Each

Part Number: PWM-477581

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 578026

Alternator, Street Alternator, GM CS130 Case Style, 16V, 140 amps, Satin Black, Serpentine Pulley, Each

Part Number: PWM-578026

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 37293-344

Alternator, Street Alternator, GM 10SI/10DN/12SI Case Style, 12V, 150 amps, Chrome, V-Belt Pulley, Each

Part Number: PWM-37293-344

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 37297-364

Alternator, Street Alternator, GM 10SI/10DN/12SI Case Style, 12V, 150 amps, Chrome, Serpentine Pulley, Each

Part Number: PWM-37297-364

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 857295

Alternator, Street Alternator, GM 10SI/10DN/12SI Style, 12V, 175 amps, Black, V-Belt Pulley, Each

Part Number: PWM-857295

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 682081

Alternator, Street Alternators, GM CS130D Case Style, 12V, 165 amps, Polished, Serpentine Pulley, Each

Part Number: PWM-682081

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 7072-118

Alternator, Street Alternator, Ford 1G Case Style, 12V, 120 amps, Natural, V-Belt Pulley, Each

Part Number: PWM-7072-118

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 67805

Alternator, Street Alternators, GM CS144 Case Style, 12V, 200 amps, Polished, Serpentine Pulley, Each

Part Number: PWM-67805

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 27771

Alternator, Street Alternator, Ford 3G Case Style, 12V, 140 amps, Polished, Serpentine Pulley, Each

Part Number: PWM-27771

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 477611

Alternator, Street Alternator, Ford 3G Style, 12V, 200 amps, Natural, Serpentine Pulley, Each

Part Number: PWM-477611

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 68231

Alternator, Street Alternators, GM CS130D Case Style, 12V, 165 amps, Polished, Serpentine Pulley, Each

Part Number: PWM-68231

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 8-56100

Alternator, Street Alternator, Motorola Style, 12V, 100 amps, Black, Serpentine Pulley, Each

Part Number: PWM-8-56100

Not Yet Reviewed

Estimated Ship Date: Monday 12/15/2025

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Estimated Ship Date: Monday 12/15/2025

Powermaster Street Alternators 674611-362

Alternator, Street Alternators, GM CS130 Case Style, 12V, 140 amps, Polished, V-Belt Pulley, Each

Part Number: PWM-674611-362

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 867295

Alternator, Street Alternator, GM 10SI/10DN/12SI Style, 12V, 175 amps, Polished, V-Belt Pulley, Each

Part Number: PWM-867295

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 18233

Alternator, Street Alternators, GM CS130D Case Style, 12V, 120 amps, Chrome, Serpentine Pulley, Each

Part Number: PWM-18233

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 68233

Alternator, Street Alternators, GM CS130D Case Style, 12V, 165 amps, Polished, Serpentine Pulley, Each

Part Number: PWM-68233

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 38231

Alternator, Street Alternator, GM CS130D Case Style, 12V, 165 amps, Chrome, Serpentine Pulley, Each

Part Number: PWM-38231

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 847296

Alternator, Street Alternator, GM 10SI/10DN/12SI Style, 12V, 175 amps, Natural, Serpentine Pulley, Each

Part Number: PWM-847296

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

Powermaster Street Alternators 377591

Alternator, Street Alternator, Ford 3G Case Style, 12V, 200 amps, Chrome, Serpentine/V-Belt Pulley, Each

Part Number: PWM-377591

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 58550

Alternator, Street Alternators, 12V, 245 amps, Satin Black, Serpentine Pulley, Each

Part Number: PWM-58550

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 27461-362

Alternator, Street Alternator, GM CS130 Case Style, 12V, 105 amps, Polished, Serpentine Pulley, Each

Part Number: PWM-27461-362

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

Powermaster Street Alternators 17297-344

Alternator, Street Alternators, GM 10SI/10DN/12SI Case Style, 12 V, 100 amps, Chrome, V-Belt Pulley, Each

Part Number: PWM-17297-344

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

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