Chevy C20 Alternators

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Chevy C20

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Tuff Stuff |

#7457139BU6G12

Tuff Stuff 7139BBUL6G12 GM Silver Bullet 100 Amp Alternator, Pol

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$255.99

/each

Tuff Stuff |

#7457140AU6G12

Tuff Stuff 7140ABUL6G12 GM Silver Bullet 140 Amp Alternator, Chr

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$337.99

/each

Tuff Stuff |

#7457139AU6G12

Tuff Stuff 7139ABUL6G12 GM Silver Bullet 100 Amp Alternator, Chr

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$278.99

/each

Tuff Stuff |

#7457127NKP6G12

Tuff Stuff 7127NKP6G12 GM Alternator, 140 Amp, 1-Wire, Polished

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$246.99

/each

Tuff Stuff |

#7457127NKB6G12

Tuff Stuff 7127NKB6G12 GM Alternator, 140 Amp, 1-Wire, Black

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Powder Coated

$246.99

/each

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.

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.

Squarebody LS Swap Guide | 73-87 C10 Parts List

If you're ready to swap an LS engine into you '73-'87 Squarebody Chevy or GMC truck, here's a guide to get you started and a parts list to help you get everything you need for your swap.

Ford Alternator Buying Guide

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

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.

Water Pump Options for the Chevy Crate Engine

In this Tech Tip, a customer asked for some recommendations on water pumps for his 1934 Chevy Coupe build.

C10 Rear Drop Springs Installation

Read how to install rear drop spring to lower a 1969 C10 pickup. Follow these steps for a smooth installation.

How To Set Up Multiple Carburetors on a Vintage Engine

There's a right and wrong way to run a two-barrel carburetor on your vintage engine. Check out this guide about how to select the correct carburetor for your Flathead or vintage engine.

C10 LS Swaps Made Easy with Motor Mount and Transmission Crossmember Kits

Looking to update that '67-'72 C10 truck with an LS swap? These motors mounts and transmission crossmember kit will make that modern powerplant and transmission fit like they came that way from the factory!

Tuff Stuff |

#7457127NF6G12

Tuff Stuff 7127NF6G12 GM Alternator, 100 Amp, 1-Wire, Stealth Blk

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$246.99

/each

Tuff Stuff |

#7457127ND6G12

Tuff Stuff 7127ND6G12 GM Alternator, 100 Amp, 1-Wire, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$233.99

/each

Tuff Stuff |

#7457127K6G12

Tuff Stuff 7127K6G12 GM Alternator, 140 Amp, 1-Wire, Factory Cast

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$230.99

/each

$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

Tuff Stuff |

#7457127NK6G12

Tuff Stuff 7127NK6G12 GM Alternator, 140 Amp, 1-Wire, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$262.99

/each

Tuff Stuff |

#7457127K9

Tuff Stuff 7127K9 GM Alternator, 140 Amp, 1-Wire, Factory Cast

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$230.99

/each

-21%

Powermaster |

#255384831

Powermaster 384831 GM CS130D Alternator, 165A, 6-Groove, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

165 amp

Alternator Finish:

Chrome

$290.99

/each

$372.50

-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

$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

$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

$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

$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

-21%

Powermaster |

#255378608

Powermaster 378608 GM CS130 XS Alternator, 140A, Chrome, Right

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$264.99

/each

$337.50

$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

$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

-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

-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

$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

$106 Off

Powermaster |

#91068128

Powermaster 8162 50 Amp Mini Racing Alternator

(3)

One Wire Alternator:

Yes

Alternator Amperage:

50 amp

Alternator Finish:

Powder Coated

$237.99

/each

$343.75

-21%

Powermaster |

#255678608

Powermaster 678608 GM CS130 XS Alternator, 140A, Polished, Right

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$264.99

/each

$337.50

-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

-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

Tuff Stuff |

#7457068BU6G

Tuff Stuff 7068BBULL6G Silver Bullet 100 Amp Alternator, Polished

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$252.99

/each

-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

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

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

-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

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Chevy C20 Alternators

Year

One Wire Alternator

Brand

Availability

Discounts

Engine Family

Price

Customer Rating

Products

Tuff Stuff 7139BBUL6G12 GM Silver Bullet 100 Amp Alternator, Pol

Tuff Stuff 7140ABUL6G12 GM Silver Bullet 140 Amp Alternator, Chr

Tuff Stuff 7139ABUL6G12 GM Silver Bullet 100 Amp Alternator, Chr

Tuff Stuff 7127NKP6G12 GM Alternator, 140 Amp, 1-Wire, Polished

Tuff Stuff 7127NKB6G12 GM Alternator, 140 Amp, 1-Wire, Black

Related Articles

Tuff Stuff 7127NF6G12 GM Alternator, 100 Amp, 1-Wire, Stealth Blk

Tuff Stuff 7127ND6G12 GM Alternator, 100 Amp, 1-Wire, Chrome

Tuff Stuff 7127K6G12 GM Alternator, 140 Amp, 1-Wire, Factory Cast

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

Tuff Stuff 7127NK6G12 GM Alternator, 140 Amp, 1-Wire, Chrome

Tuff Stuff 7127K9 GM Alternator, 140 Amp, 1-Wire, Factory Cast

Powermaster 384831 GM CS130D Alternator, 165A, 6-Groove, Chrome

PerTronix AL82N-90 VW 90 Amp Alternator, Natural Finish

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

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

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

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

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

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

Powermaster 378608 GM CS130 XS Alternator, 140A, Chrome, Right

Powermaster 8148 XS Volt Alternator, 150 Amps, Internal

Powermaster 8156 Race Alternator, 180 Amps, 16V

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

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

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

Powermaster 8162 50 Amp Mini Racing Alternator

Powermaster 678608 GM CS130 XS Alternator, 140A, Polished, Right

Ford Chrome Alternator, 70 Amp

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

Tuff Stuff 7068BBULL6G Silver Bullet 100 Amp Alternator, Polished

Holley 197-303 Premium Alternator, 150A, Black

Holley 197-304 Premium Alternator, 150A, Polished

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

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

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

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

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