GMC SIERRA 2500 HD Powermaster Alternators and Generators

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

Part Number: PWM-48237

4.93 out of 5 stars ( 30 )

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Alternator, Internal Regulator, 165 Amp, Natural, Cadillac, Chevy, GMC, Each

Part Number: PWM-48206

4.62 out of 5 stars ( 29 )

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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: Today

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Alternators and Generators, XS Volt, GM AD230 Case Style, 165 amps, Serpentine Pulley, 6-groove, Cadillac, Chevy, GMC, Small Block LS, Each

Part Number: PWM-482478

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Alternator, Street, 165 Amps, Black Powdercoated Finish, Serpentine, Cadillac, Chevy, GMC, Each

Part Number: PWM-58247

4.2 out of 5 stars ( 5 )

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Alternator, AD244 Style, 2 Pin Regulator, 220 Amps, Offset 2 Inch Pulley, Black Powdercoated Finish, Serpentine, Cadillac, Chevy, GMC, Each

Part Number: PWM-58302

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Today

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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: Today

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

Part Number: PWM-48550-1

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

Part Number: PWM-44007

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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

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

Part Number: PWM-48550

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Alternator, AD244 Style, 2 Pin Regulator, 220 Amps, Offset 2 Inch Pulley, Chrome Finish, Serpentine, Cadillac, Chevy, GMC, Each

Part Number: PWM-38302

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Alternator, AD244 Style, 2 Pin Regulator, 220 Amps, Offset 2 Inch Pulley, Natural Finish, Serpentine, Cadillac, Chevy, GMC, Each

Part Number: PWM-48302

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Feb 19, 2026 if ordered today

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Alternator, Street, 120 Amps, Natural Finish, Serpentine, Cadillac, Chevy, GMC, Each

Part Number: PWM-8247

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Part Number: PWM-38237

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Alternator, Street, 165 Amps, Black Powdercoated Finish, Under Drive Serpentine Pulley, Cadillac, Chevy, GMC, Each

Part Number: PWM-582473

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Alternator, 180 Amp, Internal Regulator, 4-Pin, Polished, GM, Each

Part Number: PWM-28237

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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

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Estimated Ship Date: Feb 16, 2026 if ordered today

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

Part Number: PWM-48550-4

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Estimated Ship Date: Feb 16, 2026 if ordered today

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

Part Number: PWM-68550-1

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Alternator, Street, 165 Amps, Natural Finish, Under Drive Serpentine Pulley, Cadillac, Chevy, GMC, Each

Part Number: PWM-482473

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Alternator, HPR Large Frame, 245 Amp, Polished, Internal Regulator, Serpentine Pulley, Chevy, Cadillac, GMC, Each

Part Number: PWM-64007

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 17, 2026 if ordered today

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