Pontiac Alternators

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-20%

Powermaster |

#25537860

Powermaster 37860 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$243.99

/each

$307.50

-20%

Powermaster |

#25527860

Powermaster 27860 Street Alternator, 105A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Polished

$221.99

/each

$277.50

-20%

Powermaster |

#25557860

Powermaster 57860 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Powder Coated

$221.99

/each

$277.50

-23%

Powermaster |

#255378028362

Powermaster 378028-362 XS Volt Alternator, 140 Amps, V-belt

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$280.99

/each

$367.50

-21%

Powermaster |

#255374021

Powermaster 374021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$264.99

/each

$337.50

Ammeter vs Voltmeter: How They Work, and Which One Is Right for Your Car

Ammeters and voltmeters are two very different ways of monitoring your vehicle’s charging system. Both are better than an “idiot light” but which one is right for your build?

GM Alternator Identification

Learn about GM alternator identification in our guide. We cover GM 3 wire alternators, 1 wire alternators, and externally regulated so you know what to choose.

Why Convert to A One Wire Alternator

Learn how to hook up a 1-wire alternator on your vehicle. 1-wire alternators are perfect for engine swaps or just keeping things simple for your project.

Alternator vs Generator Pros & Cons | Conversion Tips for Your Car

If you're considering upgrading your classic car's charging system with an generator to alternator conversion, here are some helpful tips.

Ford Alternator Buying Guide

Brief review of the different types of Ford alternators and regulators available through Speedway Motors.

How to Choose the Best Radiator for LS Swaps on a Budget

The radiator is an important, but often expensive part of that LS Swap. Here are some options to pick the best radiator for your LS swap on a budget.

Exhaust Manifolds VS Headers | How Much HP Do Headers Add

Headers and manifolds differ in design and function. Long tube headers, shorty headers, and exhaust manifolds each have their pros and cons regarding performance and application.

-20%

Powermaster |

#25547402

Powermaster 47402 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$221.99

/each

$277.50

-24%

Powermaster |

#255574021

Powermaster 574021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Powder Coated

$230.99

/each

$307.50

-21%

Powermaster |

#255674021

Powermaster 674021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$264.99

/each

$337.50

-20%

Powermaster |

#25557402

Powermaster 57402 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Powder Coated

$243.99

/each

$307.50

-20%

Powermaster |

#255474021

Powermaster 474021 Street Alternator, 140 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$221.99

/each

$277.50

-21%

Powermaster |

#25567402

Powermaster 67402 Street Alternator, 140A, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$264.99

/each

$337.50

-23%

Powermaster |

#2558012

Powermaster 8012 Race Alternator, 105 Amps, Serpentine, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Natural

$204.99

/each

$268.75

-24%

Powermaster |

#2558018

Powermaster 8018 XS Volt Alternator, 105 Amps, Serpentine, GM

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Natural

$224.99

/each

$297.50

-25%

Powermaster |

#25537802362

Powermaster 37802-362 Street Alternator, 140 Amps, Serp, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$251.99

/each

$337.50

-18%

Powermaster |

#255278021

Powermaster 278021 Street Alternator, 105 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Polished

$226.99

/each

$277.50

$171 Off

Powermaster |

#255578068SPL

Powermaster 578068SPL GM CS144 Black Wrinkle 300A 12V Alternator

One Wire Alternator:

Alternator Amperage:

300 amp

Alternator Finish:

Powder Coated

$529.99

/each

$701.25

-24%

Powermaster |

#255378021

Powermaster 378021 Street Alternator, 140 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$230.99

/each

$307.50

-23%

Powermaster |

#255178021

Powermaster 178021 Street Alternator, 105 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Chrome

$210.99

/each

$277.50

GM Denso Style 1-Wire Mini Race Alternator, 90 Amp

Speedway Motors |

#2891004

GM Denso Style 1-Wire Mini Race Alternator, 90 Amp

(32)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Pulley Style:

V-belt

as low as

$162.99

/each

Speedway Motors |

#2891001

GM 10SI 1 Wire Alternator, 110 Amp

(43)

One Wire Alternator:

Yes

Alternator Amperage:

110 amp

Pulley Style:

V-belt

as low as

$149.99

/each

Ford 1G Style 110 Amp 1 Wire Alternator, Chrome

Speedway Motors |

#2891031-CHR

Ford 1G Style 110 Amp 1 Wire Alternator, Chrome

(5)

One Wire Alternator:

Yes

Alternator Amperage:

110 amp

Alternator Finish:

Chrome plated

$167.99

/each

-34%

Tuff Stuff |

#91033053

Tuff Stuff 7068RF Ford 1 Wire Smooth Black Ford Alternator, 100 AMP

(2)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$160.99

/each

$246.80

$126 Off

Powermaster |

#25582091

Powermaster 82091 PowerGEN Alternator, 90 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$373.99

/each

$500.00

-32%

Tuff Stuff |

#91067152

Ford Chrome Alternator, 70 Amp

(11)

One Wire Alternator:

Alternator Amperage:

70 amp

Alternator Finish:

Chrome

$198.99

/each

$292.80

-19%

Powermaster |

#2558173

Powermaster 8173 Denso Style Race Alternator, 75A, 100mm, Natural

(1)

One Wire Alternator:

Yes

Alternator Amperage:

75 amp

Alternator Finish:

Natural

$237.99

/each

$296.25

-9%

PerTronix |

#447AL82N-90

PerTronix AL82N-90 VW 90 Amp Alternator, Natural Finish

One Wire Alternator:

Alternator Amperage:

90 amp

Alternator Finish:

Natural

$255.28

/each

$280.81

-23%

Powermaster |

#2558176

Powermaster 8176 Race Alternator, 55 Amps, V-belt, 16V

One Wire Alternator:

Yes

Alternator Amperage:

55 amp

Alternator Finish:

Natural

$214.99

/each

$282.50

-18%

Powermaster |

#2558166

Powermaster 8166 Race Alternator, 55 Amps, V-belt, 16V

One Wire Alternator:

Yes

Alternator Amperage:

55 amp

Alternator Finish:

Powder Coated

$289.99

/each

$356.25

$143 Off

Powermaster |

#2558156

Powermaster 8156 Race Alternator, 180 Amps, 16V

One Wire Alternator:

Yes

Alternator Amperage:

180 amp

Alternator Finish:

Powder Coated

$426.99

/each

$570.00

-24%

Powermaster |

#2558182

Powermaster 8182 Race Alternator, 75 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

75 amp

Alternator Finish:

Powder Coated

$296.99

/each

$392.50

-27%

Powermaster |

#25537902

Powermaster 37902 GM CS130 140A Chrome Alternator, 6-Groove, Left

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$223.99

/each

$307.50

$132 Off

Powermaster |

#2558128

Powermaster 8128 Race Alternator, 115 Amps, 12V

One Wire Alternator:

Yes

Alternator Amperage:

115 amp

Alternator Finish:

Powder Coated

$382.99

/each

$515.00

$132 Off

Powermaster |

#2558152

Powermaster 8152 Race Alternator, 180 Amps, 12V

One Wire Alternator:

Yes

Alternator Amperage:

180 amp

Alternator Finish:

Powder Coated

$423.99

/each

$556.25

-18%

Powermaster |

#2558192

Powermaster 8192 Race Alternator, 75 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

75 amp

Alternator Finish:

Natural

$244.99

/each

$300.00

-22%

Powermaster |

#2558111

Powermaster 8111 Race Alternator, 100 Amps, 12V

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$302.99

/each

$388.75

-25%

Powermaster |

#2558066

Powermaster 8066 Race Alternator, 100 Amps, 16V

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$250.99

/each

$336.25

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Pontiac Alternators

Model

One Wire Alternator

Brand

Application

Availability

Discounts

Engine Family

Price

Customer Rating

Products

Powermaster 37860 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 27860 Street Alternator, 105A, Serpentine, 12V, GM

Powermaster 57860 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 378028-362 XS Volt Alternator, 140 Amps, V-belt

Powermaster 374021 Street Alternator, 140 Amps, V-belt, 12V, GM

Related Articles

Powermaster 47402 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 574021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 674021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 57402 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 474021 Street Alternator, 140 Amps, V-belt, 12V, GM

Powermaster 67402 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 8012 Race Alternator, 105 Amps, Serpentine, 12V, GM

Powermaster 8018 XS Volt Alternator, 105 Amps, Serpentine, GM

Powermaster 37802-362 Street Alternator, 140 Amps, Serp, 12V, GM

Powermaster 278021 Street Alternator, 105 Amps, V-belt, 12V

Powermaster 578068SPL GM CS144 Black Wrinkle 300A 12V Alternator

Powermaster 378021 Street Alternator, 140 Amps, V-belt, 12V

Powermaster 178021 Street Alternator, 105 Amps, V-belt, 12V

GM Denso Style 1-Wire Mini Race Alternator, 90 Amp

GM 10SI 1 Wire Alternator, 110 Amp

Ford 1G Style 110 Amp 1 Wire Alternator, Chrome

Tuff Stuff 7068RF Ford 1 Wire Smooth Black Ford Alternator, 100 AMP

Powermaster 82091 PowerGEN Alternator, 90 Amps, V-belt, 12V

Ford Chrome Alternator, 70 Amp

Powermaster 8173 Denso Style Race Alternator, 75A, 100mm, Natural

PerTronix AL82N-90 VW 90 Amp Alternator, Natural Finish

Powermaster 8176 Race Alternator, 55 Amps, V-belt, 16V

Powermaster 8166 Race Alternator, 55 Amps, V-belt, 16V

Powermaster 8156 Race Alternator, 180 Amps, 16V

Powermaster 8182 Race Alternator, 75 Amps, V-belt, 12V

Powermaster 37902 GM CS130 140A Chrome Alternator, 6-Groove, Left

Powermaster 8128 Race Alternator, 115 Amps, 12V

Powermaster 8152 Race Alternator, 180 Amps, 12V

Powermaster 8192 Race Alternator, 75 Amps, V-belt, 12V

Powermaster 8111 Race Alternator, 100 Amps, 12V

Powermaster 8066 Race Alternator, 100 Amps, 16V

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