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Powermaster 8-57140 High Output Alternator 140 Amp Ford Upgrade

(Ford F-150 1975-91, Mustang 1965-73, 1979-93, Bronco 1966-92, Galaxie 500 1962-67, F-250 Pickup 1965-91, 1993-94, Fairlane 1968-70 + 24 more models)

Manufacturer

Picture for manufacturer Powermaster

Part Number

8-57140
11 reviews
Sale Price

$234.46

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

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No Hassle Returns

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Powermaster 8-57140 is a high-output 140-amp alternator designed as a direct upgrade for Ford applications. This performance alternator delivers increased electrical power output compared to stock units, making it ideal for vehicles with higher electrical demands from aftermarket accessories, audio systems, or performance modifications.

Key Features:

  • 140-amp output for superior charging performance
  • 6-groove serpentine pulley for proper belt alignment
  • Black powder-coated finish for durability and clean appearance
  • Direct bolt-in replacement for select Ford applications
  • High-efficiency design maintains output at lower RPMs
  • Heavy-duty construction for reliable performance

This alternator provides the additional charging capacity needed to support high-demand electrical systems while maintaining proper voltage levels. The 6-groove pulley ensures compatibility with factory serpentine belt systems, and the black finish complements engine bay aesthetics.

Products specifications

Fits

Ford F-150 1975-91, Mustang 1965-73, 1979-93, Bronco 1966-92, Galaxie 500 1962-67, F-250 Pickup 1965-91, 1993-94, Fairlane 1968-70, Torino 1968-76, Mustang II 1974-78, Bronco II 1984-90, Falcon 1963-70, F-350 Pickup 1965-91, 1993-94 + 19 more models

Advertised Amperage Output

140 amps

Alternator Brackets Included

No

Alternator Case Style

Powermaster Custom

Alternator Finish

Black powdercoated

Belt Included

No

Notes

Includes new charge wire.

One-Wire Capable

Yes

Pulley Style

Serpentine

Quantity

Sold individually.

Regulator Included

Yes

Regulator Style

Internal

Voltage Compatibility

12

Too easy...priced right...thanks!

Thank you for having the tires available that I've been looking for a long time at a very good price.

Price of the parts were almost half of a local auto parts store, delivery was quicker than estimated and I received everything exactly as I had ordered. Excellent service!

Recieved the parts in a timely manner.

Item as described and prompt shipping

Was looking for exact replacement turn signal for a 1988 Bunkhouse Motorcycle camper. You had the exact light. Perfect fitment!! Thanks so much!!

Very strait forward and easy.

This is not the product I wanted, I don't have gutters on my 2003 Astro van. Can you please resolve this for me.

Awesome company!!!!!! Will definitely order from here again! Order arrived fast. Was exactly as described/pictured. Great price!

A little slow at the server to place the order.

thanks for accepting my returns everytime I've returned things!

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