-18%

Powermaster 277491 Street Alternator, 120A, Serpentine, 12V, Ford

-18%

#255277491

Powermaster 277491 Street Alternator, 120A, Serpentine, 12V, Ford

Name: Powermaster 277491 Street Alternator, 120A, Serpentine, 12V, Ford
Brand: Powermaster
SKU: 255277491
Price: 315.99 USD
Availability: InStock

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Amperage:

120 Amp

155 Amp

Finish:

Polished

ChromeNatural

$315.99

/each

Factory Shipped

$388.75

Save $72.76

Quantity

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Product Summary

One Wire Alternator, Ford 3G Alternator Case Style

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Key Specs

MFG. Part #	277491
One Wire Alternator	Yes
Alternator Amperage	120 amp
Alternator Finish	Polished
Pulley Style	Serpentine

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Need To Know

Need help?

855.313.9176

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Quick and Easy Returns

Return Policy

Powermaster 277491 Details

Alternator Ford 3G Small Frame Straight 120 Amp 85 Idle 6 Groove and 1V Pulley One Wire Polished

Product Features

Great For Ford FE Engines
120 Plus Amps At Top End/85 Plus Amps At Idle
Easy To Install 1-Wire Internally Regulated
Individually Dyno Tested with Proof of Performance Guarantee
Great Upgrade To Replace Lower Amp Units
Dual Internal Fans For High Efficiency And Maximum Cooling

Application

Ford 144ci Inline Six
Ford 170ci Inline Six
Ford 2.3ci Inline Four
Ford 2.8ci V6
Ford 2.9ci V6
Ford 200ci Inline Six
Ford 240ci Inline Six
Ford 250ci Inline Six
Ford 255ci Small Block V8
Ford 260ci Small Block V8
Ford 289ci Small Block V8
Ford 2ci Inline Four
Ford 3.8ci V6
Ford 300ci Inline Six
Ford 302ci Small Block V8
Ford 332ci FE V8
Ford 351C ci Small Block V8
Ford 351Cci Small Block V8
Ford 351Mci Small Block V8
Ford 352ci FE V8
Ford 360ci FE V8
Ford 390ci FE V8
Ford 3ci V6
Ford 400ci Small Block V8
Ford 406ci FE V8
Ford 406ci FE V8
Ford 427ci FE V8
Ford 428ci FE V8
Ford 429ci Big Block V8
Ford 429ci Big Block V8

Charts

Installation Instructions (PDF)

Guides & Documents

Selecting the Right Wire Size for Automotive Alternator to Battery Applications

Alternators Installation Instructions (255277491)

Installation Instructions (Powermaster)

Warranty (Powermaster)

Technical Information (Powermaster)

Warranty Information

Click for details

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.

CA Prop 65

Powermaster 277491 Specifications

KEY SPECS
MFG. Part #	277491
Brand	Powermaster
One Wire Alternator	Yes
Alternator Amperage	120 amp
Alternator Finish	Polished
Pulley Style	Serpentine
Belt Type	Serpentine and V-Belt

GENERAL
Alternator Case Style	Ford 3G
Voltage Required	12-Volt
Regulator	Internal
Regulator Style	Internal
Regulator Included	Yes
Alternator Pulley Included	Yes
Alternator Fan Included	No
Alternator Brackets Included	No
Color	Polished
Sold in Quantity	Each
Notes	Made in the USA
GTIN Code	692209008835
Belt Included	No

Ratings & Reviews

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Questions & Answers

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Fitment

1962-1963 AC Shelby Cobra

Ford 260

1964 AC Shelby Cobra

Ford 289

1968-1973 AC Shelby Cobra

Ford 289

1967 DeTomaso Mangusta

Ford 289

1968-1972 DeTomaso Mangusta

Ford 302

1960 Edsel Ranger

352 Ford FE V8

1960 Edsel Villager

352 Ford FE V8

1963 Ford 300

352 Ford FE V8
Ford 260
Ford 289

1966-1967 Ford Bronco

Ford 289

1968 Ford Bronco

Ford 289
Ford 302

1969-1977 Ford Bronco

Ford 302

1978-1979 Ford Bronco

400 Ford 335 Series Cleveland V8

1980-1984 Ford Bronco

Ford 302

1958-1959 Ford Club

352 Ford FE V8

1962 Ford Club Wagon

352 Ford FE V8
Ford 260

1963-1964 Ford Club Wagon

352 Ford FE V8
Ford 260
Ford 289

1965-1967 Ford Club Wagon

352 Ford FE V8
Ford 289

1958-1961 Ford Country Sedan

352 Ford FE V8

1962 Ford Country Sedan

352 Ford FE V8
Ford 260

1963-1964 Ford Country Sedan

352 Ford FE V8
Ford 260
Ford 289

1965-1967 Ford Country Sedan

352 Ford FE V8
Ford 289

1968 Ford Country Sedan

Ford 289
Ford 302

1969-1970 Ford Country Sedan

429 Ford 385 Series Big Block V8
Ford 302

1971-1973 Ford Country Sedan

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Country Sedan

400 Ford 335 Series Cleveland V8
Ford 302

1958-1961 Ford Country Squire

352 Ford FE V8

1962 Ford Country Squire

352 Ford FE V8
Ford 260

1963-1964 Ford Country Squire

352 Ford FE V8
Ford 260
Ford 289

1965-1967 Ford Country Squire

352 Ford FE V8
Ford 289

1968 Ford Country Squire

Ford 289
Ford 302

1969-1970 Ford Country Squire

429 Ford 385 Series Big Block V8
Ford 302

1971-1973 Ford Country Squire

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Country Squire

400 Ford 335 Series Cleveland V8
Ford 302

1958-1960 Ford Courier Sedan Delivery

352 Ford FE V8

1964 Ford Custom

352 Ford FE V8
Ford 260
Ford 289

1965-1967 Ford Custom

352 Ford FE V8
Ford 289

1968 Ford Custom

Ford 289
Ford 302

1969-1970 Ford Custom

429 Ford 385 Series Big Block V8
Ford 302

1971-1972 Ford Custom

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1958-1960 Ford Custom 300

352 Ford FE V8

1964 Ford Custom 500

352 Ford FE V8
Ford 260
Ford 289

1965-1966 Ford Custom 500

352 Ford FE V8
Ford 289

1967 Ford Custom 500

Ford 289

1968 Ford Custom 500

Ford 289
Ford 302

1969-1970 Ford Custom 500

429 Ford 385 Series Big Block V8
Ford 302

1971-1973 Ford Custom 500

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Custom 500

400 Ford 335 Series Cleveland V8
Ford 302

1975-1977 Ford Custom 500

400 Ford 335 Series Cleveland V8

1958 Ford Del Rio Wagon

352 Ford FE V8

1968-1975 Ford E-100 Econoline

Ford 302

1979 Ford E-100 Econoline

Ford 302

1980 Ford E-100 Econoline

400 Ford 335 Series Cleveland V8
Ford 302

1981-1983 Ford E-100 Econoline

Ford 302

1979-1983 Ford E-100 Econoline Club Wagon

Ford 302

1975 Ford E-150 Econoline

Ford 302

1979-1984 Ford E-150 Econoline

Ford 302

1979-1984 Ford E-150 Econoline Club Wagon

Ford 302

1968-1974 Ford E-200 Econoline

Ford 302

1975 Ford E-250 Econoline

Ford 302

1979 Ford E-250 Econoline

Ford 302

1980 Ford E-250 Econoline

400 Ford 335 Series Cleveland V8
Ford 302

1981-1984 Ford E-250 Econoline

Ford 302

1979 Ford E-250 Econoline Club Wagon

Ford 302

1980 Ford E-250 Econoline Club Wagon

400 Ford 335 Series Cleveland V8
Ford 302

1981-1982 Ford E-250 Econoline Club Wagon

400 Ford 335 Series Cleveland V8

1968-1974 Ford E-300 Econoline

Ford 302

1975 Ford E-350 Econoline

Ford 302

1979 Ford E-350 Econoline

Ford 302

1980-1982 Ford E-350 Econoline

400 Ford 335 Series Cleveland V8
Ford 302

1979 Ford E-350 Econoline Club Wagon

Ford 302

1980 Ford E-350 Econoline Club Wagon

400 Ford 335 Series Cleveland V8
Ford 302

1981-1982 Ford E-350 Econoline Club Wagon

400 Ford 335 Series Cleveland V8

1961-1967 Ford Econoline

144 Ford Inline 6
170 Ford Inline 6
240 Ford Inline 6

1975-1976 Ford Elite

400 Ford 335 Series Cleveland V8

1965-1967 Ford F-100

352 Ford FE V8

1969-1976 Ford F-100

Ford 302

1977-1979 Ford F-100

400 Ford 335 Series Cleveland V8
Ford 302

1980-1981 Ford F-100

Ford 302

1982-1983 Ford F-100

Ford 3.8 Essex V6
Ford 302

1975-1976 Ford F-150

Ford 302

1977-1979 Ford F-150

400 Ford 335 Series Cleveland V8
Ford 302

1980-1984 Ford F-150

Ford 302

1965-1967 Ford F-250

352 Ford FE V8

1969-1976 Ford F-250

Ford 302

1977-1982 Ford F-250

400 Ford 335 Series Cleveland V8
Ford 302

1983-1984 Ford F-250

Ford 302

1965-1967 Ford F-350

352 Ford FE V8

1972-1976 Ford F-350

Ford 302

1977-1980 Ford F-350

400 Ford 335 Series Cleveland V8
Ford 302

1981-1982 Ford F-350

400 Ford 335 Series Cleveland V8

1958-1961 Ford Fairlane

352 Ford FE V8

1962 Ford Fairlane

352 Ford FE V8
Ford 260

1963-1964 Ford Fairlane

352 Ford FE V8
Ford 260
Ford 289

1965-1966 Ford Fairlane

352 Ford FE V8
Ford 289

1967 Ford Fairlane

Ford 289

1968 Ford Fairlane

Ford 289
Ford 302

1969 Ford Fairlane

Ford 302

1970 Ford Fairlane

429 Ford 385 Series Big Block V8
Ford 302

1978-1979 Ford Fairmont

Ford 302

1962-1963 Ford Falcon

Ford 260

1964 Ford Falcon

Ford 260
Ford 289

1965-1967 Ford Falcon

Ford 289

1968 Ford Falcon

Ford 289
Ford 302

1969 Ford Falcon

Ford 302

1970 Ford Falcon

429 Ford 385 Series Big Block V8
Ford 302

1962-1963 Ford Falcon Sedan Delivery

Ford 260

1964 Ford Falcon Sedan Delivery

Ford 260
Ford 289

1965 Ford Falcon Sedan Delivery

Ford 289

1963 Ford Ford 300

352 Ford FE V8
Ford 260
Ford 289

1959-1962 Ford Galaxie

352 Ford FE V8

1963-1964 Ford Galaxie

352 Ford FE V8
Ford 260
Ford 289

1965-1967 Ford Galaxie

352 Ford FE V8
Ford 289

1962 Ford Galaxie 500

352 Ford FE V8

1963-1964 Ford Galaxie 500

352 Ford FE V8
Ford 260
Ford 289

1965-1966 Ford Galaxie 500

352 Ford FE V8
Ford 289

1967 Ford Galaxie 500

Ford 289

1968 Ford Galaxie 500

Ford 302

1969-1970 Ford Galaxie 500

429 Ford 385 Series Big Block V8
Ford 302

1971-1973 Ford Galaxie 500

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Galaxie 500

400 Ford 335 Series Cleveland V8
Ford 302

1972-1973 Ford Gran Torino

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Gran Torino

400 Ford 335 Series Cleveland V8
Ford 302

1975-1976 Ford Gran Torino

400 Ford 335 Series Cleveland V8

1975-1980 Ford Granada

Ford 302

1982 Ford Granada

Ford 3.8 Essex V6

1964-1969 Ford GT40

Ford 289

1965-1967 Ford LTD

352 Ford FE V8
Ford 289

1968 Ford LTD

Ford 289
Ford 302

1969-1970 Ford LTD

429 Ford 385 Series Big Block V8
Ford 302

1971-1973 Ford LTD

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford LTD

400 Ford 335 Series Cleveland V8
Ford 302

1975-1976 Ford LTD

400 Ford 335 Series Cleveland V8

1977-1978 Ford LTD

400 Ford 335 Series Cleveland V8
Ford 302

1979-1982 Ford LTD

Ford 302

1983-1984 Ford LTD

Ford 3.8 Essex V6
Ford 302

1985-1986 Ford LTD

Ford 3.8 Essex V6

1977-1978 Ford LTD II

400 Ford 335 Series Cleveland V8
Ford 302

1979 Ford LTD II

Ford 302

1971-1977 Ford Maverick

Ford 302

1928-1931 Ford Model A

200 Ford Inline 6

1932 Ford Model B

200 Ford Inline 6

1964 Ford Mustang

Ford 260
Ford 289

1965-1967 Ford Mustang

Ford 289

1968 Ford Mustang

Ford 289
Ford 302

1969-1971 Ford Mustang

429 Ford 385 Series Big Block V8
Ford 302

1972-1973 Ford Mustang

Ford 302

1979 Ford Mustang

Ford 302

1982 Ford Mustang

Ford 302

1983 Ford Mustang

Ford 3.8 Essex V6
Ford 302

1984 Ford Mustang

Ford 3.8 Essex V6
Ford 302
Ford Lima 2.3

1985-1986 Ford Mustang

Ford 3.8 Essex V6
Ford Lima 2.3

1994-2004 Ford Mustang

Ford 3.8 Essex V6

2013-2014 Ford Mustang

Ford Trinity

2018-2022 Ford Mustang

2.3 Ford Inline Four

1975-1978 Ford Mustang II

Ford 302

1974 Ford Pinto

170 Ford Inline 6
Ford Lima 2.3

1975-1979 Ford Pinto

Ford Lima 2.3

1980 Ford Pinto

170 Ford Inline 6
Ford Lima 2.3

1958-1961 Ford Ranch Wagon

352 Ford FE V8

1962 Ford Ranch Wagon

352 Ford FE V8
Ford 260

1963-1964 Ford Ranch Wagon

352 Ford FE V8
Ford 260
Ford 289

1965-1967 Ford Ranch Wagon

352 Ford FE V8
Ford 289

1968 Ford Ranch Wagon

Ford 289
Ford 302

1969-1970 Ford Ranch Wagon

429 Ford 385 Series Big Block V8
Ford 302

1971-1973 Ford Ranch Wagon

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Ranch Wagon

400 Ford 335 Series Cleveland V8
Ford 302

1958-1959 Ford Ranchero

352 Ford FE V8

1960-1961 Ford Ranchero

Ford 289

1962-1964 Ford Ranchero

Ford 260

1965-1967 Ford Ranchero

352 Ford FE V8
Ford 289

1968 Ford Ranchero

Ford 289
Ford 302

1969 Ford Ranchero

Ford 302

1970-1971 Ford Ranchero

429 Ford 385 Series Big Block V8
Ford 302

1972-1973 Ford Ranchero

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Ranchero

400 Ford 335 Series Cleveland V8
Ford 302

1975-1976 Ford Ranchero

400 Ford 335 Series Cleveland V8

1977-1978 Ford Ranchero

400 Ford 335 Series Cleveland V8
Ford 302

1979 Ford Ranchero

Ford 302

1928-1931 Ford Sedan Delivery

200 Ford Inline 6

1958-1959 Ford Skyliner

352 Ford FE V8

1963 Ford Sprint

Ford 260

1964 Ford Sprint

Ford 260
Ford 289

1960 Ford Starliner

352 Ford FE V8

1958-1960 Ford Sunliner

352 Ford FE V8

1958-1960 Ford Thunderbird

352 Ford FE V8

1968-1970 Ford Thunderbird

429 Ford 385 Series Big Block V8

1971-1973 Ford Thunderbird

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8

1974 Ford Thunderbird

400 Ford 335 Series Cleveland V8

1977-1978 Ford Thunderbird

400 Ford 335 Series Cleveland V8
Ford 302

1979-1981 Ford Thunderbird

Ford 302

1982 Ford Thunderbird

Ford 3.8 Essex V6

1983-1984 Ford Thunderbird

Ford 3.8 Essex V6
Ford 302
Ford Lima 2.3

1985-1988 Ford Thunderbird

Ford 3.8 Essex V6
Ford Lima 2.3

1989-1997 Ford Thunderbird

Ford 3.8 Essex V6

1968 Ford Torino

Ford 289
Ford 302

1969 Ford Torino

Ford 302

1970-1971 Ford Torino

429 Ford 385 Series Big Block V8
Ford 302

1972-1973 Ford Torino

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Ford Torino

400 Ford 335 Series Cleveland V8
Ford 302

1975-1976 Ford Torino

400 Ford 335 Series Cleveland V8

1958-1960 Ford Victoria

352 Ford FE V8

1977-1979 Lincoln Continental

400 Ford 335 Series Cleveland V8

1980 Lincoln Continental

Ford 302

1982 Lincoln Continental

Ford 3.8 Essex V6
Ford 302

1983-1984 Lincoln Continental

Ford 302

1977-1979 Lincoln Mark V

400 Ford 335 Series Cleveland V8

1980-1983 Lincoln Mark VI

Ford 302

1984 Lincoln Mark VII

Ford 302

1981-1984 Lincoln Town Car

Ford 302

1977-1980 Lincoln Versailles

Ford 302

1964 Mercury Caliente

Ford 260
Ford 289

1965-1967 Mercury Caliente

Ford 289

1966-1967 Mercury Capri

Ford 289

1969-1973 Mercury Capri

Ford Lima 2.3

1979 Mercury Capri

Ford 302

1982 Mercury Capri

Ford 302

1983-1984 Mercury Capri

Ford 3.8 Essex V6
Ford 302

1985-1986 Mercury Capri

Ford 3.8 Essex V6

1961-1962 Mercury Colony Park

352 Ford FE V8

1969-1970 Mercury Colony Park

429 Ford 385 Series Big Block V8

1971-1973 Mercury Colony Park

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8

1974 Mercury Colony Park

400 Ford 335 Series Cleveland V8

1960-1961 Mercury Comet

144 Ford Inline 6
170 Ford Inline 6
Ford 260

1962-1963 Mercury Comet

Ford 260

1964 Mercury Comet

Ford 260
Ford 289

1965-1967 Mercury Comet

Ford 289

1968 Mercury Comet

Ford 289
Ford 302

1969 Mercury Comet

Ford 302

1971-1977 Mercury Comet

Ford 302

1961-1962 Mercury Commuter

352 Ford FE V8

1967 Mercury Commuter

Ford 289

1967 Mercury Cougar

Ford 289

1968 Mercury Cougar

Ford 289
Ford 302

1969-1971 Mercury Cougar

429 Ford 385 Series Big Block V8
Ford 302

1973-1976 Mercury Cougar

400 Ford 335 Series Cleveland V8

1977-1978 Mercury Cougar

400 Ford 335 Series Cleveland V8
Ford 302

1979-1981 Mercury Cougar

Ford 302

1982 Mercury Cougar

Ford 3.8 Essex V6

1983-1984 Mercury Cougar

Ford 3.8 Essex V6
Ford 302

1985-1997 Mercury Cougar

Ford 3.8 Essex V6

1963 Mercury Country Cruiser

Ford 260
Ford 289

1964 Mercury Cyclone

Ford 260
Ford 289

1965-1967 Mercury Cyclone

Ford 289

1968 Mercury Cyclone

Ford 289
Ford 302

1969-1970 Mercury Cyclone

429 Ford 385 Series Big Block V8
Ford 302

1971 Mercury Cyclone

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1975-1978 Mercury Grand Marquis

400 Ford 335 Series Cleveland V8

1979-1984 Mercury Grand Marquis

Ford 302

1969-1970 Mercury Marauder

429 Ford 385 Series Big Block V8

1969-1970 Mercury Marquis

429 Ford 385 Series Big Block V8

1971-1973 Mercury Marquis

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8

1974-1978 Mercury Marquis

400 Ford 335 Series Cleveland V8

1979-1982 Mercury Marquis

Ford 302

1983-1986 Mercury Marquis

Ford 3.8 Essex V6

1961 Mercury Meteor

352 Ford FE V8

1962 Mercury Meteor

352 Ford FE V8
Ford 260

1963 Mercury Meteor

Ford 260
Ford 289

1975-1980 Mercury Monarch

Ford 302

1968 Mercury Montego

Ford 289
Ford 302

1969 Mercury Montego

Ford 302

1970-1971 Mercury Montego

429 Ford 385 Series Big Block V8
Ford 302

1972-1973 Mercury Montego

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8
Ford 302

1974 Mercury Montego

400 Ford 335 Series Cleveland V8
Ford 302

1975-1976 Mercury Montego

400 Ford 335 Series Cleveland V8

1961-1962 Mercury Monterey

352 Ford FE V8

1969-1970 Mercury Monterey

429 Ford 385 Series Big Block V8

1971-1973 Mercury Monterey

400 Ford 335 Series Cleveland V8
429 Ford 385 Series Big Block V8

1974 Mercury Monterey

400 Ford 335 Series Cleveland V8

1962-1963 Mercury Villager

Ford 260

1964 Mercury Villager

Ford 260
Ford 289

1965-1967 Mercury Villager

Ford 289

1966-1967 Mercury Voyager

Ford 289

1978-1979 Mercury Zephyr

Ford 302

1962 Shelby Cobra

Ford 260

1963-1964 Shelby Cobra

Ford 260
Ford 289

1965-1968 Shelby Cobra

Ford 289

1964-1967 Sunbeam Tiger

Ford 260