Product Summary

One Wire Alternator, Generator Alternator Case Style

  • Has a 12 volt, one-wire hook-up operation
  • Specifically designed for the 1949-53 Ford Flathead
  • Features a lamp terminal to allow dash light to function
  • Puts out 65 amp at idle, 75 amp when cruising, and 90 amps at the top end
  • Offers the output and reliability of a new alternator couples with classic looks
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Key Specs

MFG. Part #82021-2
One Wire AlternatorYes
Alternator Amperage90 amp
Alternator FinishPowder Coated
Pulley StyleV-belt
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Need To Know

Quick and Easy Returns

Return Policy

Powermaster 82021-2 Details

Get the look of a generator with the output and reliability of an alternator with this new PowerGEN Flathead Ford alternator from Powermaster. This alternator offers 12 volt one-wire hook-up, 90 amps output, Ford strap mounting design, internal regulartor, and v-belt pulley style.

  • One-wire operation
  • 12 volt
  • 65 amp idle, 75 amp cruise, 90 amp top end
  • For strap mounting design
  • Black powdercoated
  • Features lamp terminal to allow dash light to function
  • 1949-1953 Ford Flathead

Warranty Information

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Do not send the unit back to Speedway Motors unless you have called Powermaster and talked to their Tech Department while the unit was still on the vehicle so they could help you troubleshoot the problem.

Powermaster 82021-2 Specifications

KEY SPECS
MFG. Part #82021-2
BrandPowermaster
One Wire AlternatorYes
Alternator Amperage90 amp
Alternator FinishPowder Coated
Pulley StyleV-belt
Belt TypeV-Belt
GENERAL
Alternator Case StyleGenerator
Voltage Required12-Volt
RegulatorInternal
Regulator StyleInternal
Regulator IncludedYes
Alternator Pulley IncludedYes
Belt Width0.625"
Alternator Brackets IncludedNo
ColorBlack
Sold in QuantityEach
NotesMade in the USA
GTIN Code692209016427
Belt IncludedNo
Coating TypePowdercoated

Ratings & Reviews

4.6

7 Reviews

Overall Assessment

Customers praised the Powermaster alternator for its high-quality, modern performance, and traditional look. Its major appeal came from well-made and perfect fit enhancements that serve as an excellent upgrade. Despite minor initial fitting challenges for some users, the product garnered recommendations for its aesthetically pleasing nature, reminiscent of the original "look". Customers found the product somewhat pricey, yet ultimately worth the cost in comparison to its performance benefits, hence expressing willingness to repurchase.

4.6

7 reviews

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Filter by Ratings

Yes

5.0

2 years ago

Retired

Goldthwaite, Texas

Verified

We placed the product in a 1951 Ford Truck. It is working great!

Would Recommend

The Powermaster alternator did not fit my 1953 flathead

3.0

4 years ago

Benno "Bobber"

Netherlands, Europe

Verified

To make the Powermaster alternator fit my 1953 flathead, i had to mill some material off the bracket that is provided with it. Also i had to make an adaptor to make it all work (see photo's). I would not recommend this to a friend, unless he has the machines to make the adaptor.

Would Not Recommend

I would buy again

5.0

4 years ago

Butch

Pacific junction Ia

Verified

Well made a bit pricey though.

Would Recommend

I would buy this product again

5.0

4 years ago

rick

kansas

Verified

great fitment looks nice and works great awesome upgrade

Traditional look with modern performance.

5.0

9 years ago

Oscar

Simi Valley, CA

Verified

We installed this generator on my wife's flatty powered roadster to replace a "one-wire" GM alternator. She hated the look of the alternator sitting atop the flathead but for 14 years we tolerated it. Now the car has a much better original look of an old school hotrod but still has modern (...and even better) performance than before. It was a bit tricky to get our modified fan bracket to work correctly but that was just a matter of fabrication. It was a little bit expensive but well worth the cost!! Nice looking product.

Would Recommend

Very nice product, would buy it again.

4.0

9 years ago

SAWDOFF

Greenfield Center, NY

Verified

I installed it in a 52 Mercury mild custom with flathead V8, owner wanted the original "look".

Would Recommend

Very good quality !!!

5.0

9 years ago

Lou's

Canada

Verified

Perfect fit !!!

Would Recommend

Showing 7 of 7 reviews

Questions & Answers

6 Questions • 6 Answers

Can I use the existing stock Ford cooling fan and bracket?

by Oscar

• 9 years ago

1 answer

Does it come with the mount and strap pictured in the photo?

by Brujo

• 9 years ago

1 answer

what do you mean in product description " W /Lamp Term ?

by Louis

• 9 years ago

1 answer

What are the dimensions of this product? Does it have the same case length as Part # 91067165 of 6.625"?

by Sigs

• 9 years ago

1 answer

Is the pulley for a 5/8" wide belt?

by Russell

• 9 years ago

1 answer

Does a ground wire needed to be added to ground the housing of the alternator to the engine

by 32Ford

• 10 years ago

1 answer

6 of 6 questions shown

Fitment

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Customer Impersonation Script