Powermaster Hot Rod Alternators

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-12%

Powermaster |

#91067165

Powermaster PowerGEN 1949-53 Flathead Ford 1-Wire Alternators, 12-Volt

(30)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Pulley Style:

V-belt

as low as

$421.99

/each

$483.99

-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

$139 Off

Powermaster |

#91067160

Powermaster PowerGEN 1939-48 Flathead Ford 1-Wire Alternators, 12-Volt

(10)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Pulley Style:

V-belt

as low as

$388.99

/each

$527.50

$158 Off

Powermaster |

#255820512

Powermaster 82051-2 PowerGEN Early GM Alternator, 12-Volt, Black

(7)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$452.99

/each

$611.25

$161 Off

Powermaster |

#91067180

Powermaster Shorty PowerGEN 1949-53 Flathead Ford Alternators, 12-Volt

(7)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Pulley Style:

V-belt

as low as

$437.99

/each

$598.75

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.

New Product Display - NSRA Street Rod Nationals 2019

Check out our new products we have on display at the 50th anniversary NSRA Street Rod Nationals and some new products from some of our favorite vendors.

Hot Rod Power Tour 2024

This year's Hot Rod Power Tour spanned 5 days across 5 cities from Tennessee to Indiana and we rode along with one of the craziest vintage Mail Trucks you can imagine!

Solid Axle Choices for Your Traditional Hot Rod

When it comes to a traditional style build on an early hot rod it just has to be rolling on a solid front axle of some sort. In this buyer's guide we take you through I-beam and round tube solid axles, spindle choices, radius rod needs, and more.

New Hubs for a Traditional-Style Hot Rod

Tim talks about the process of upgrading the factory hubs on his 1929 Roadster project with new manufacture units courtesy of Speedway Motors.

Hot Rod Power Tour 2023

Speedway Motors did the 2023 Hot Rod Power Tour, and we're back with some stories and photos from one amazing adventure

Front Spring Choices for Traditional Straight Axle Hot Rods

It may feel like a daunting task attempting to determine the best leaf spring for your traditional hot rod straight axle build, but our buyer's guide will surely help.

Modifying Axles to Lower a Hot Rod

Learn how to lower a hot rod by modifying the axles and some history behind early hop ups. This project features a Ford axle with wishbones for a Model A.

Hot Rod Horns and Whistles

If you're going to buy a horn isn't it nice to know what it sounds like first? That's why Speedway produced a helpful video to hear the differences in the unique horns that we offer.

The Best Wiring Solution for Your Hot Rod or Muscle Car Project

Electrical wiring is one of those tasks that enthusiasts dread tackling on their own. We're here to tell you that wiring your project vehicle is something you can do with a little help from your friends at Speedway Motors!

-18%

Powermaster |

#25582006

Powermaster 82006 PowerGEN 1928-31 Ford Model A Alternator, 6-Volt

(32)

One Wire Alternator:

Yes

Alternator Amperage:

60 amp

Alternator Finish:

Powder Coated

$394.99

/each

$487.50

-24%

Powermaster |

#25567293

Powermaster 67293 GM 12SI 150 Amp Alternator, Polished

(15)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$197.99

/each

$263.75

$148 Off

Powermaster |

#25582011

Powermaster 82011 12V PowerGEN 39-48 Flathead Alt, Neg. Ground

(4)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$407.99

/each

$556.25

$149 Off

Powermaster |

#255821012

Powermaster 82101-2 PowerGEN Ford Swing Mount Alternator, 12-Volt

(6)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$406.99

/each

$556.25

-22%

Powermaster |

#2557294

Powermaster 7294 GM 12SI 100 Amp Alternator, Natural

(21)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$152.99

/each

$197.50

-18%

Powermaster |

#255847141

Powermaster 8-47141 Street Alternator, 150A, V-belt, 12V, Ford

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Natural

$237.99

/each

$291.25

$181 Off

Powermaster |

#91067170

Powermaster PowerGEN 1955-64 GM 1-Wire Alternators, 12-Volt

(9)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Pulley Style:

V-belt

as low as

$402.99

/each

$583.75

$127 Off

Powermaster |

#25558237

Powermaster 58237 Alternator, 225 Amps, Serpentine, 12V, Chevy

One Wire Alternator:

Yes

Alternator Amperage:

225 amp

Alternator Finish:

Gloss

$371.99

/each

$498.75

$140 Off

Powermaster |

#91067167

Powermaster PowerGEN 1951-64 Ford 1-Wire Alternators, 12-Volt

(5)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Pulley Style:

V-belt

as low as

$387.99

/each

$527.50

-21%

Powermaster |

#25547293

Powermaster 47293 Street Alternator, 150 Amps, V-belt, 12V, GM

(3)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Natural

$184.99

/each

$235.00

$103 Off

Powermaster |

#91067174

Powermaster PowerGEN 1949-53 Flathead Ford 1-Wire Alternators, 6-Volt

(8)

One Wire Alternator:

Yes

Alternator Amperage:

60 amp

Pulley Style:

V-belt

as low as

$439.99

/each

$542.50

-27%

Powermaster |

#25517294

Powermaster 17294 GM 12SI 100 Amp Alternator, Chrome

(32)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome plated

$162.99

/each

$225.00

$124 Off

Powermaster |

#91067172

Powermaster PowerGEN 1939-48 Flathead Ford 1-Wire Alternators, 6-Volt

(4)

One Wire Alternator:

Yes

Alternator Amperage:

60 amp

Pulley Style:

V-belt

as low as

$418.99

/each

$542.50

$128 Off

Powermaster |

#91068121

Powermaster 8-800 SB Chevy 50 Amp Mini Alternator Kit w/V-Belt

(4)

One Wire Alternator:

Yes

Alternator Amperage:

53 amp

Alternator Finish:

Powder Coated

$399.99

/each

$527.50

$164 Off

Powermaster |

#91068120

Powermaster 8-801 SB Chevy 50 Amp Mini Alternator Kit w/Serp-Belt

(7)

One Wire Alternator:

Yes

Alternator Amperage:

53 amp

Alternator Finish:

Powder Coated

$363.99

/each

$527.50

-18%

Powermaster |

#25547101

Powermaster 8-47101 Street Alternators, 100 AMP

(6)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$193.99

/each

$237.50

-30%

Powermaster |

#25547861

Powermaster 47861 Street Alternator, 140A, Serpentine, 12V, GM

(2)

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$173.99

/each

$251.25

$166 Off

Powermaster |

#25582013

Powermaster 82013 Shorty PowerGEN 1939-48 Ford Alternator, 12-Volt

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$432.99

/each

$598.75

$129 Off

Powermaster |

#25557759

Powermaster 57759 Street Alternator, 200A, Serp and V-belt, Ford

One Wire Alternator:

Alternator Amperage:

200 amp

Alternator Finish:

Powder Coated

$354.99

/each

$483.75

-19%

Powermaster |

#25517294114

Powermaster 17294-114 Street Alternator, 100 Amps, Serp, 12V, GM

(1)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$181.99

/each

$225.00

-18%

Powermaster |

#25557101

Powermaster 8-57101 Street Alternators, 100 AMP

(4)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$208.99

/each

$257.50

-26%

Powermaster |

#25557297

Powermaster 57297 GM 12SI 150 Amp Smooth Look Alternator, Black

(12)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$208.99

/each

$282.50

$139 Off

Powermaster |

#25582021

Powermaster 82021-2 PowerGEN 1949-53 Ford Flathead Alternator, 12-Volt

(7)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$416.99

/each

$556.25

-30%

Powermaster |

#255857140

Powermaster 8-57140 Race Alternator, 150A, Serpentine, 12V, Ford

(1)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$219.99

/each

$317.50

-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

$151 Off

Powermaster |

#25582001

Powermaster 82001 PowerGEN 1928-31 Ford Model A Alternator, 12-Volt

(2)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Textured

$336.99

/each

$487.50

$165 Off

Powermaster |

#25582111

Powermaster 82111 Shorty PowerGEN Early GM Alternator, 12-Volt

(2)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Powder Coated

$418.99

/each

$583.75

-29%

Powermaster |

#25527294

Powermaster 27294 GM 12SI 100 Amp Alternator, Polished

(15)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$157.99

/each

$225.00

$148 Off

Powermaster |

#255182023

Powermaster 182023 Shorty PowerGEN Ford 1949-53 Alternator, 12-Volt

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Chrome

$616.99

/each

$765.00

$104 Off

Powermaster |

#255837141

Powermaster 8-37141 Street Alternator, 150A, V-belt, 12V, Ford

(2)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Chrome

$253.99

/each

$357.50

$139 Off

Powermaster |

#255182111

Powermaster 182111 Shorty PowerGEN Early GM Alternator, 12-Volt, Chr.

(1)

One Wire Alternator:

Yes

Alternator Amperage:

90 amp

Alternator Finish:

Chrome

$555.99

/each

$695.00

Showing 1 - 36 of 547 results

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Powermaster Hot Rod Alternators

One Wire Alternator

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Make

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Platform

Price

Customer Rating

Products

Powermaster PowerGEN 1949-53 Flathead Ford 1-Wire Alternators, 12-Volt

Powermaster 37293 GM 12SI 150 Amp Alternator, Chrome

Powermaster PowerGEN 1939-48 Flathead Ford 1-Wire Alternators, 12-Volt

Powermaster 82051-2 PowerGEN Early GM Alternator, 12-Volt, Black

Powermaster Shorty PowerGEN 1949-53 Flathead Ford Alternators, 12-Volt

Related Articles

Powermaster 82006 PowerGEN 1928-31 Ford Model A Alternator, 6-Volt

Powermaster 67293 GM 12SI 150 Amp Alternator, Polished

Powermaster 82011 12V PowerGEN 39-48 Flathead Alt, Neg. Ground

Powermaster 82101-2 PowerGEN Ford Swing Mount Alternator, 12-Volt

Powermaster 7294 GM 12SI 100 Amp Alternator, Natural

Powermaster 8-47141 Street Alternator, 150A, V-belt, 12V, Ford

Powermaster PowerGEN 1955-64 GM 1-Wire Alternators, 12-Volt

Powermaster 58237 Alternator, 225 Amps, Serpentine, 12V, Chevy

Powermaster PowerGEN 1951-64 Ford 1-Wire Alternators, 12-Volt

Powermaster 47293 Street Alternator, 150 Amps, V-belt, 12V, GM

Powermaster PowerGEN 1949-53 Flathead Ford 1-Wire Alternators, 6-Volt

Powermaster 17294 GM 12SI 100 Amp Alternator, Chrome

Powermaster PowerGEN 1939-48 Flathead Ford 1-Wire Alternators, 6-Volt

Powermaster 8-800 SB Chevy 50 Amp Mini Alternator Kit w/V-Belt

Powermaster 8-801 SB Chevy 50 Amp Mini Alternator Kit w/Serp-Belt

Powermaster 8-47101 Street Alternators, 100 AMP

Powermaster 47861 Street Alternator, 140A, Serpentine, 12V, GM

Powermaster 82013 Shorty PowerGEN 1939-48 Ford Alternator, 12-Volt

Powermaster 57759 Street Alternator, 200A, Serp and V-belt, Ford

Powermaster 17294-114 Street Alternator, 100 Amps, Serp, 12V, GM

Powermaster 8-57101 Street Alternators, 100 AMP

Powermaster 57297 GM 12SI 150 Amp Smooth Look Alternator, Black

Powermaster 82021-2 PowerGEN 1949-53 Ford Flathead Alternator, 12-Volt

Powermaster 8-57140 Race Alternator, 150A, Serpentine, 12V, Ford

Powermaster 57294 GM 12SI 150 Amp Alternator, Black

Powermaster 82001 PowerGEN 1928-31 Ford Model A Alternator, 12-Volt

Powermaster 82111 Shorty PowerGEN Early GM Alternator, 12-Volt

Powermaster 27294 GM 12SI 100 Amp Alternator, Polished

Powermaster 182023 Shorty PowerGEN Ford 1949-53 Alternator, 12-Volt

Powermaster 8-37141 Street Alternator, 150A, V-belt, 12V, Ford

Powermaster 182111 Shorty PowerGEN Early GM Alternator, 12-Volt, Chr.

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