GM X-Body Alternators

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New Product

Proform |

#586141153

Proform 141-153 Slant-Edge Alternator, GM 10SI, 100 Amp, Gray

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Matte

$267.99

/each

New Product

Proform |

#586141149

Proform 141-149 Slant-Edge Alternator, GM 10SI, 100 Amp, Gray

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Matte

$269.95

/each

New Product

Proform |

#586141156

Proform 141-156 Slant-Edge Alternator, GM 10SI, 100 Amp, Silver

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$272.99

/each

New Product

Proform |

#586141151

Proform 141-151 Slant-Edge Alternator, GM 10SI, 100 Amp, Silver

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$276.99

/each

New Product

Proform |

#586141150

Proform 141-150 Slant-Edge Alternator, GM 10SI, 100 Amp, Red

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$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.

GM 10-Bolt Identification and Upgrades | 7.625, 7.5, 8.2, 8.5, 8.6

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

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.

Upgrade Your Ride with a Mini Starter!

Little is thought of your engine’s starter until it refuses to turn your engine over at the worst possible moment. Today’s powerful mini starters can crank the biggest engines with ease. Learn how in our buyer’s guide.

Ford Alternator Buying Guide

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

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.

LS Swap Chevelle Guide

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

LS Swap Guide: GM 3 Speed / 4 Speed Parts List

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

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.

Replacing GM Rear End Spherical Bushings

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

New Product

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

New Product

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

New Product

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

New Product

Proform |

#586141148

Proform 141-148 Slant-Edge Alternator, GM 10SI, 100 Amp, Orange

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$269.95

/each

New Product

Tuff Stuff |

#7458441B6G1W

Tuff Stuff 8441B6G1W 1-Wire Alternator, 225A, Stealth Black

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Black

$335.99

/each

New Product

Tuff Stuff |

#7458435B6G1W

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

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Black

$586.99

/each

New Product

Tuff Stuff |

#7458441C1G1W

Tuff Stuff 8441C1G1W 1-Wire Alternator, 225A, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Chrome

$489.99

/each

New Product

Tuff Stuff |

#7458441B1G1W

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

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Black

$471.99

/each

New Product

Tuff Stuff |

#7458441FC1G1W

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

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Natural

$471.99

/each

New Product

Tuff Stuff |

#7458441C6G1W

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

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Chrome

$509.99

/each

New Product

Tuff Stuff |

#7458435C6G1W

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

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Chrome

$602.99

/each

New Product

Tuff Stuff |

#7458441FC6G1W

Tuff Stuff 8441FC6G1W 1-Wire Alternator, 225A, Factory Cast Plus

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Natural

$492.99

/each

New Product

Tuff Stuff |

#7458435B6GOE

Tuff Stuff 8435B6GOE LS OEM Wire Alternator, 225A, Stealth Black

One Wire Alternator:

Alternator Amperage:

225 amp

Alternator Finish:

Black

$586.99

/each

New Product

Tuff Stuff |

#7458435F6G1W

Tuff Stuff 8435F6G1W LS 1 Wire Alternator, 225A, Cast

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Natural

$586.99

/each

New Product

Tuff Stuff |

#7458435F6GOE

Tuff Stuff 8435F6GOE LS OEM Wire Alternator, 225A, Cast

One Wire Alternator:

Alternator Amperage:

225 amp

Alternator Finish:

Natural

$586.99

/each

-34%

Tuff Stuff |

#91033008

Tuff Stuff 7127K 1 Wire Alternator, 140 AMP, V Groove Pulley

(8)

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$150.99

/each

$230.77

-28%

Tuff Stuff |

#91033018

Tuff Stuff 7127NF 1 Wire Black Alternator, 100 AMP, V Groove Pulley

(2)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$176.99

/each

$246.79

-34%

Tuff Stuff |

#91033085

Tuff Stuff 7127NK 1 Wire Alternator, 140 AMP, V Groove Pulley

(4)

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Chrome

$170.99

/each

$262.82

-34%

Tuff Stuff |

#7457127

Tuff Stuff 7127 GM Alternator, Internal Regulator, 80 Amp, 1-Wire

(1)

One Wire Alternator:

Yes

Alternator Amperage:

80 amp

Alternator Finish:

Natural

$171.99

/each

$263.74

-34%

Tuff Stuff |

#7457127NH

Tuff Stuff 7127NH GM Alternator, 6 Volt, Black, Negative Ground

One Wire Alternator:

Alternator Amperage:

65 amp

Alternator Finish:

Black

$180.99

/each

$278.40

-34%

Tuff Stuff |

#7457127RATBLK

Tuff Stuff 7127RATBLK GM Alternator, 100 Amp, 1-Wire, Black

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Black

$160.99

/each

$246.79

-19%

Tuff Stuff |

#7457127NFBL

Tuff Stuff 7127NFBLUE GM Alternator, 100 Amp, Blue W/Chrome

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$197.99

/each

$246.79

-34%

Tuff Stuff |

#7457127ND6G

Tuff Stuff 7127ND6G GM Alternator, 100 Amp, 1-Wire, Chrome

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$151.99

/each

$233.62

-34%

Tuff Stuff |

#7457127NKP

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

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Polished

$183.99

/each

$282.05

-28%

Tuff Stuff |

#7457127NFRED

Tuff Stuff 7127NFRED GM Alternator, 100 Amp, 1 Wire, Red

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Painted

$176.99

/each

$246.79

-34%

Tuff Stuff |

#7457127NBP

Tuff Stuff 7127NBP GM Alternator, 80 Amp, 1-Wire, Polished

One Wire Alternator:

Yes

Alternator Amperage:

80 amp

Alternator Finish:

Polished

$160.99

/each

$246.79

-30%

Tuff Stuff |

#7457127NKB

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

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Black

$170.99

/each

$246.79

-34%

Tuff Stuff |

#7457127NFBWDP

Tuff Stuff 7127NFBWDP GM Alternator, 100 Amp, Black Wrinkle

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Textured

$160.99

/each

$246.79

-34%

Tuff Stuff |

#7457127NKBW6G

Tuff Stuff 7127NKBW6G GM Alternator, 140 Amp, 1-Wire, Stealth Blk

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Textured

$171.99

/each

$263.25

-22%

Tuff Stuff |

#7457127KU6G

Tuff Stuff 7127KBULL6G GM Silver Bullet 140 Amp Alternator, Cast

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$204.99

/each

$262.82

-34%

Tuff Stuff |

#7457127NKBWDP

Tuff Stuff 7127NKBWDP GM Alternator, 140 Amp, 1-Wire, Blk Wrinkle

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Textured

$171.99

/each

$263.25

Showing 1 - 36 of 419 results

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GM X-Body Alternators

One Wire Alternator

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Availability

Discounts

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Engine Family

Price

Customer Rating

Products

Proform 141-153 Slant-Edge Alternator, GM 10SI, 100 Amp, Gray

Proform 141-149 Slant-Edge Alternator, GM 10SI, 100 Amp, Gray

Proform 141-156 Slant-Edge Alternator, GM 10SI, 100 Amp, Silver

Proform 141-151 Slant-Edge Alternator, GM 10SI, 100 Amp, Silver

Proform 141-150 Slant-Edge Alternator, GM 10SI, 100 Amp, Red

Related Articles

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

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

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

Proform 141-148 Slant-Edge Alternator, GM 10SI, 100 Amp, Orange

Tuff Stuff 8441B6G1W 1-Wire Alternator, 225A, Stealth Black

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

Tuff Stuff 8441C1G1W 1-Wire Alternator, 225A, Chrome

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

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

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

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

Tuff Stuff 8441FC6G1W 1-Wire Alternator, 225A, Factory Cast Plus

Tuff Stuff 8435B6GOE LS OEM Wire Alternator, 225A, Stealth Black

Tuff Stuff 8435F6G1W LS 1 Wire Alternator, 225A, Cast

Tuff Stuff 8435F6GOE LS OEM Wire Alternator, 225A, Cast

Tuff Stuff 7127K 1 Wire Alternator, 140 AMP, V Groove Pulley

Tuff Stuff 7127NF 1 Wire Black Alternator, 100 AMP, V Groove Pulley

Tuff Stuff 7127NK 1 Wire Alternator, 140 AMP, V Groove Pulley

Tuff Stuff 7127 GM Alternator, Internal Regulator, 80 Amp, 1-Wire

Tuff Stuff 7127NH GM Alternator, 6 Volt, Black, Negative Ground

Tuff Stuff 7127RATBLK GM Alternator, 100 Amp, 1-Wire, Black

Tuff Stuff 7127NFBLUE GM Alternator, 100 Amp, Blue W/Chrome

Tuff Stuff 7127ND6G GM Alternator, 100 Amp, 1-Wire, Chrome

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

Tuff Stuff 7127NFRED GM Alternator, 100 Amp, 1 Wire, Red

Tuff Stuff 7127NBP GM Alternator, 80 Amp, 1-Wire, Polished

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

Tuff Stuff 7127NFBWDP GM Alternator, 100 Amp, Black Wrinkle

Tuff Stuff 7127NKBW6G GM Alternator, 140 Amp, 1-Wire, Stealth Blk

Tuff Stuff 7127KBULL6G GM Silver Bullet 140 Amp Alternator, Cast

Tuff Stuff 7127NKBWDP GM Alternator, 140 Amp, 1-Wire, Blk Wrinkle

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