GMC Alternators, Generators, and Charging

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-23%

Powermaster |

#25557295

Powermaster 57295 Smooth Look Alternator, 150A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$227.99

/each

$296.25

-19%

Powermaster |

#25537293

Powermaster 37293 GM 12SI 150 Amp Alternator, Chrome

(49)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Chrome

$211.99

/each

$263.75

-19%

Powermaster |

#25527297

Powermaster 27297 Smooth Look Alternator, 100A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$195.99

/each

$242.50

-25%

Powermaster |

#2558002

Powermaster 8002 12SI GM Alternator, 100 Amp

(8)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$146.99

/each

$197.50

$128 Off

Tuff Stuff |

#UP234609

Tuff Stuff Chrome 140 Amp GM 6-Groove Pulley Silver Bullet Alt

Garage Sale Type:

Blemished

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

$215.99

/each

$343.92

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.

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.

Alternator Bracket Install on a 454 Big Block Chevy

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

Ford Alternator Buying Guide

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

Selecting the Right Wire Size for Automotive Alternator to Battery Applications

Selecting the right battery cable wire size for automotive alternator to battery applications is crucial for optimal electrical performance and preventing potential issues. Our guide helps you choose the right wire gauge for any length of wire run.

GM AFM Explained | How It Works, Why It Fails & How to Delete It

Understand GM’s AFM system—how it operates, it’s pros and cons, common lifter failures, and your options for tuning, disabling, or full AFM delete.

LQ4 Engine Build Upgrades | Recipes for 500HP - 1,000HP

Building GM’s LQ4 6.0L Gen 3 LS engine for various power levels is easy with the right performance parts recipe.

GM HEI Ignition Distributor Wiring Diagrams and Guide

Learn about the wiring of GM HEI Ignition Distributors with our diagrams and guide. Ensure you are getting the best performance out of your ignition system.

Custom Battery Box and Cables

Speedway Motors employee Jess M. talks about the custom battery tray and cables she built for her '33 Ford.

Grounding the Electrical System

Are your gauges reading erratically or does your car run out of power at high rpm? It may be the cause of a bad ground. Speedway Motors can show you how to diagnose and fix the problem in no time at all!

-22%

Tuff Stuff Silver Bullet One Wire Alternator, 100 Amp Rating

Tuff Stuff |

#91071396

Tuff Stuff Silver Bullet One Wire Alternator, 100 Amp Rating

(2)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Pulley Style:

Serpentine

as low as

$190.99

/each

$246.80

-27%

Tuff Stuff Silver Bullet One Wire Alternators - 100 Amp GM V-Belt Pulley

Tuff Stuff |

#9107139

Tuff Stuff Silver Bullet One Wire Alternators - 100 Amp GM V-Belt Pulley

(33)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Pulley Style:

V-belt

as low as

$179.99

/each

$246.80

-34%

Tuff Stuff Silver Bullet One Wire Alternator - 140 Amp GM V-Belt Pulley

Tuff Stuff |

#9107140

Tuff Stuff Silver Bullet One Wire Alternator - 140 Amp GM V-Belt Pulley

(13)

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Belt Type:

V-Belt

as low as

$185.99

/each

$282.06

-28%

Tuff Stuff Silver Bullet One Wire Alternator, 140 AMP Rating

Tuff Stuff |

#91071406

Tuff Stuff Silver Bullet One Wire Alternator, 140 AMP Rating

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Pulley Style:

Serpentine

as low as

$202.99

/each

$282.80

$102 Off

Powermaster |

#25537294

Powermaster 37294 12SI GM Alternator, 150 Amp, Chrome

(1)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Chrome

$226.99

/each

$328.75

-28%

Powermaster |

#25557294

Powermaster 57294 GM 12SI 150 Amp Alternator, Black

(4)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$188.99

/each

$263.75

-20%

Powermaster |

#255279261114

Powermaster 279261-114 Street Alternator, 100A, V-belt, Chevy

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$268.99

/each

$336.25

Spectre Performance |

#46547293

Spectre 47293 Alternator Bracket

(7)

Material Type:

Stainless Steel

Finish:

Polished

GTIN Code:

089601472935

$42.99

/each

King Chrome GM One Wire Alternator, 100 Amp

Speedway Motors |

#91067101

King Chrome GM One Wire Alternator, 100 Amp

(18)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome plated

$135.99

/each

Spectre 42263 Alternator Bracket Kit, Chevy 265-350, GMC 283-327

Spectre Performance |

#46542263

Spectre 42263 Alternator Bracket Kit, Chevy 265-350, GMC 283-327

(5)

GTIN Code:

089601422633

$22.99

/each

One Wire Alternator:

Yes

Alternator Amperage:

165 amp

Alternator Finish:

Natural

$268.99

/each

$342.50

Chrome GM 1-Wire Alternator, 60 Amp, Internally Regulated

Speedway Motors |

#91067154

Chrome GM 1-Wire Alternator, 60 Amp, Internally Regulated

(31)

One Wire Alternator:

Yes

Alternator Amperage:

60 amp

Alternator Finish:

Chrome plated

$144.99

/each

-17%

Powermaster |

#2552898

Sold in Quantity:

Kit

GTIN Code:

852192008018

$1,199.00

/each

OER 14081227 1976-91 Small Block Upper Alternator Adjust Brace

OER |

#92625392

OER 14081227 1976-91 Small Block Upper Alternator Adjust Brace

$32.99

/each

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GMC Alternators, Generators, and Charging

Model

Part

Brand

Application

Department

Availability

Engine Family

Discounts

Price

Customer Rating

Products

Powermaster 57295 Smooth Look Alternator, 150A, V-belt, 12V, GM

Powermaster 37293 GM 12SI 150 Amp Alternator, Chrome

Powermaster 27297 Smooth Look Alternator, 100A, V-belt, 12V, GM

Powermaster 8002 12SI GM Alternator, 100 Amp

Tuff Stuff Chrome 140 Amp GM 6-Groove Pulley Silver Bullet Alt

Related Articles

Tuff Stuff Silver Bullet One Wire Alternator, 100 Amp Rating

Tuff Stuff Silver Bullet One Wire Alternators - 100 Amp GM V-Belt Pulley

Tuff Stuff Silver Bullet One Wire Alternator - 140 Amp GM V-Belt Pulley

Tuff Stuff Silver Bullet One Wire Alternator, 140 AMP Rating

Powermaster 37294 12SI GM Alternator, 150 Amp, Chrome

Powermaster 57294 GM 12SI 150 Amp Alternator, Black

Powermaster 279261-114 Street Alternator, 100A, V-belt, Chevy

Spectre 47293 Alternator Bracket

King Chrome GM One Wire Alternator, 100 Amp

Spectre 42263 Alternator Bracket Kit, Chevy 265-350, GMC 283-327

Bills Hot Rod Co. 2016 Alternator Pulley, No Fan, 1 Groove

Powermaster 8078 Race Alternator, 100 Amps, V-belt, 12V, Chevy

Powermaster 8-721 SB Chevy 100 Amp Mini Alternatorw/ V-Belt Kit

Powermaster 8462 Race Alternator, 100 Amps, V-belt, 12V, Chevy

Powermaster 18062 Street Alternator, 100 Amps, V-belt, 12V, Chevy

Powermaster 37296 Smooth Look Alternator, 140A, Serp, 12V, Chevy

Powermaster 8462-104 Race Alternator, 100A, Serpentine, Chevy

Powermaster 8468 Race Alternator, 100A, XS Volt 1 Wire Regulator

Powermaster 484831 GM CS130D Alternator, 165A, 6-Groove, Natural

Chrome GM 1-Wire Alternator, 60 Amp, Internally Regulated

Powermaster 2898 Bracket Polish Low Mount for CS121/130

Powermaster 202 Alternator Pulley, 2V, 2.33 Inch OD, Chrome

Powermaster 1134 Powergen Pulley, 1V Groove, 5/8 Inch, Chrome

Powermaster 1139 Powergen Pulley, 1V Groove, 3/8 w/ Step, Black

Powermaster 118 Alternator Pulley, V-Belt

Powermaster 182 Alternator Pulley, 1 Groove, V-Belt

FiTech 30-99 Ultra Port EFI Standalone ECU

OER 14081227 1976-91 Small Block Upper Alternator Adjust Brace

Models: