GMC G25 Alternators

Get an exact fit for your

GMC G25

Year

Choose Year

Year

Make

GMC

Make

Model

G25

Model

Select One Wire Alternator

All

226

Yes

215

226 products

Sort By:

Clear All

Fitment

GMC G25

Products

-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

-9%

PerTronix |

#447AL82N-90P

PerTronix AL82N-90P VW 90 Amp Alternator, Polished Finish

One Wire Alternator:

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$416.69

/each

$458.36

Proform |

#586141146

Proform 141-146 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Matte

$269.95

/each

Proform |

#586141147

Proform 141-147 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$269.95

/each

Proform |

#586141152

Proform 141-152 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Matte

$269.95

/each

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.

Ford Alternator Buying Guide

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

How to Install Side Detent Shifter for GM TH200, TH250, TH350, and TH400

Learn how to install a side detent shifter in a 1969 Chevy C10.

Replacing a G-Body 7.5" Bolt Rear End

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

-7%

Holley |

#425197303

Holley 197-303 Premium Alternator, 150A, Black

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$549.95

/each

$592.95

-6%

Holley |

#425197304

Holley 197-304 Premium Alternator, 150A, Polished

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$699.95

/each

$749.95

$158 Off

Tuff Stuff |

#7458435C6G1W

Tuff Stuff 8435C6G1W LS 1 Wire Alternator, 225A, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Chrome

$401.99

/each

$559.83

-20%

Powermaster |

#25528468114

Powermaster 28468-114 Race Alternator, 90A, XS Volt 1 Wire Reg

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$358.99

/each

$448.75

$167 Off

Tuff Stuff |

#7458441FC1G1W

Tuff Stuff 8441FC1G1W 1-Wire Alternator, 225A, Factory Cast Plus

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Natural

$423.99

/each

$590.93

$154 Off

Tuff Stuff |

#7458435B6G1W

Tuff Stuff 8435B6G1W 1 Wire Alternator, 225 AMP, Stealth Black

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Black

$391.99

/each

$545.68

$167 Off

Tuff Stuff |

#7458441B1G1W

Tuff Stuff 8441B1G1W 1-Wire Alternator, 225A, Stealth Black

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Powder Coated

$423.99

/each

$590.93

$171 Off

Tuff Stuff |

#7458441C6G1W

Tuff Stuff 8441C6G1W 1-Wire Alternator, 225A, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Chrome

$434.99

/each

$605.83

-20%

Powermaster |

#2558016

Powermaster 8016 Race Alternator, 105 Amps, Serpentine, 16V

One Wire Alternator:

Yes

Alternator Amperage:

105 amp

Alternator Finish:

Natural

$224.99

/each

$282.50

$121 Off

Powermaster |

#25582096

Powermaster 82096 PowerGEN Alternator, 60 Amps, V-belt, 6V

One Wire Alternator:

Yes

Alternator Amperage:

60 amp

Alternator Finish:

Powder Coated

$393.99

/each

$515.00

-18%

Powermaster |

#25528462114

Powermaster 28462-114 Race Alternator, 90A, 12V 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$330.99

/each

$407.50

$103 Off

Powermaster |

#25528478

Powermaster 28478 Race Alternator, 100A, XS Volt 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$345.99

/each

$448.75

-20%

Powermaster |

#25528476

Powermaster 28476 Race Alternator, 100 Amp, 16V 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$347.99

/each

$435.00

-22%

Powermaster |

#2558116

Powermaster 8116 Race Alternator, 100 Amps, 16V

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$312.99

/each

$403.75

-18%

Powermaster |

#2558198

Powermaster 8198 Race Alternator, 75 Amps, V-belt

One Wire Alternator:

Yes

Alternator Amperage:

75 amp

Alternator Finish:

Natural

$289.99

/each

$356.25

-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

$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

-19%

Powermaster |

#25517297344

Powermaster 17297-344 Smooth Look Alternator, 100 Amp, 12si

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$206.99

/each

$257.50

-22%

Powermaster |

#25528162

Powermaster 28162 Race Alternator, 50 Amps, 12V

One Wire Alternator:

Yes

Alternator Amperage:

50 amp

Alternator Finish:

Polished

$334.99

/each

$433.75

-21%

Powermaster |

#2557478

Powermaster 7478 Race Alternator, 100A, XS Volt 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$284.99

/each

$365.00

$111 Off

Powermaster |

#2558158

Powermaster 8158 XS Volt Alternator, 160 Amps, Internal

One Wire Alternator:

Yes

Alternator Amperage:

160 amp

Alternator Finish:

Powder Coated

$472.99

/each

$583.75

$132 Off

Powermaster |

#255282091

Powermaster 282091 PowerGEN Alternator, 90 Amps, V-belt, 12V

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Polished

$423.99

/each

$556.25

$103 Off

Powermaster |

#25528166

Powermaster 28166 Race Alternator, 55 Amps, V-belt, 16V

One Wire Alternator:

Yes

Alternator Amperage:

55 amp

Alternator Finish:

Polished

$345.99

/each

$448.75

$103 Off

Powermaster |

#2558468104

Powermaster 8468-104 Race Alternator, 100A, XS Volt 1 Wire Reg

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Satin

$289.99

/each

$392.50

$122 Off

Powermaster |

#2558142

Powermaster 8142 Race Alternator, 150 Amps, 12V

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$405.99

/each

$527.50

$140 Off

Powermaster |

#2558148

Powermaster 8148 XS Volt Alternator, 150 Amps, Internal

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$415.99

/each

$556.25

-21%

Powermaster |

#2557468

Powermaster 7468 Race Alternator, 90A, XS Volt 1 Wire Regulator

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Natural

$284.99

/each

$365.00

-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

$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

$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

$102 Off

Powermaster |

#25548163

Powermaster 48163 Alternator, 200 Amp

One Wire Alternator:

Yes

Alternator Amperage:

200 amp

Alternator Finish:

Natural

$343.99

/each

$446.25

Showing 1 - 36 of 226 results

Shop Feedback:

Did you find what you are looking for?

GMC G25 Alternators

Year

One Wire Alternator

Brand

Availability

Discounts

Engine Family

Price

Customer Rating

Products

PerTronix AL82N-90 VW 90 Amp Alternator, Natural Finish

PerTronix AL82N-90P VW 90 Amp Alternator, Polished Finish

Proform 141-146 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

Proform 141-147 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

Proform 141-152 Slant-Edge Alternator, GM 10SI, 100 Amp, Black

Related Articles

Holley 197-303 Premium Alternator, 150A, Black

Holley 197-304 Premium Alternator, 150A, Polished

Tuff Stuff 8435C6G1W LS 1 Wire Alternator, 225A, Chrome

Powermaster 28468-114 Race Alternator, 90A, XS Volt 1 Wire Reg

Tuff Stuff 8441FC1G1W 1-Wire Alternator, 225A, Factory Cast Plus

Tuff Stuff 8435B6G1W 1 Wire Alternator, 225 AMP, Stealth Black

Tuff Stuff 8441B1G1W 1-Wire Alternator, 225A, Stealth Black

Tuff Stuff 8441C6G1W 1-Wire Alternator, 225A, Chrome

Powermaster 8016 Race Alternator, 105 Amps, Serpentine, 16V

Powermaster 82096 PowerGEN Alternator, 60 Amps, V-belt, 6V

Powermaster 28462-114 Race Alternator, 90A, 12V 1 Wire Regulator

Powermaster 28478 Race Alternator, 100A, XS Volt 1 Wire Regulator

Powermaster 28476 Race Alternator, 100 Amp, 16V 1 Wire Regulator

Powermaster 8116 Race Alternator, 100 Amps, 16V

Powermaster 8198 Race Alternator, 75 Amps, V-belt

Powermaster 8111 Race Alternator, 100 Amps, 12V

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

Powermaster 17297-344 Smooth Look Alternator, 100 Amp, 12si

Powermaster 28162 Race Alternator, 50 Amps, 12V

Powermaster 7478 Race Alternator, 100A, XS Volt 1 Wire Regulator

Powermaster 8158 XS Volt Alternator, 160 Amps, Internal

Powermaster 282091 PowerGEN Alternator, 90 Amps, V-belt, 12V

Powermaster 28166 Race Alternator, 55 Amps, V-belt, 16V

Powermaster 8468-104 Race Alternator, 100A, XS Volt 1 Wire Reg

Powermaster 8142 Race Alternator, 150 Amps, 12V

Powermaster 8148 XS Volt Alternator, 150 Amps, Internal

Powermaster 7468 Race Alternator, 90A, XS Volt 1 Wire Regulator

Powermaster 8066 Race Alternator, 100 Amps, 16V

Powermaster 8156 Race Alternator, 180 Amps, 16V

Powermaster 8128 Race Alternator, 115 Amps, 12V

Powermaster 48163 Alternator, 200 Amp

Popular Parts