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 29 Items.

Results 1 - 19 of 19

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: Today

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators 58237

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

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators for 1999-2003 F-350 SUPER DUTY, F-250 SUPER DUTY, 2000-2003 EXCURSION - 47796

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: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators 47795

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: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators 47764

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: Today

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: Today

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: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators 38237

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: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators 28237

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

Part Number: PWM-28237

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Powermaster High-Amp Alternators for 1999-2004 MUSTANG - 18252

Alternator, Internal Regulator, Serpentine Belt Pulley, 120 Amp, Chrome, Ford, 4.6L, Each

Part Number: PWM-18252

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 29, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 29, 2026 if ordered today

Powermaster High-Amp Alternators for 1999-2004 MUSTANG - 38252

Alternator, Internal Regulator, Serpentine Belt Pulley, 155 Amp, Chrome, Ford, Each

Part Number: PWM-38252

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 29, 2026 if ordered today

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: Jan 29, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 29, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Powermaster High-Amp Alternators 57795

4.25 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Powermaster High-Amp Alternators for 2001-2004 ESCAPE, TRIBUTE, 2000-2004 FOCUS - 58260

Alternator, Internal Regulator, 155 Amps, Full/Idle, Black, Chevy, 2.4L, Each

Part Number: PWM-58260

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 29, 2026 if ordered today

Powermaster High-Amp Alternators for 1999-2003 F-350 SUPER DUTY, F-250 SUPER DUTY, 2000-2003 EXCURSION - 67796

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

Part Number: PWM-67796

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 29, 2026 if ordered today

Powermaster High-Amp Alternators for 1999-2003 F-350 SUPER DUTY, F-250 SUPER DUTY, 2000-2003 EXCURSION - 37796

Alternator, Internal Regulator, 150 Amp, Chrome Plated, Ford, 7.3L Powerstroke, Each

Part Number: PWM-37796

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 29, 2026 if ordered today

Page 1 of 1