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Powermaster 27294

GM 12si-Style Alternator Polished

Powermaster 27294

713-27294

made in usa
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Powermaster 27294 GM 12si-Style Alternator Polished $147.99
GM 12si-Style Alternator
  • Polished
  • 100 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange

  • Powermaster 27294 Details

    GM 12si-Style 100 Amp Alternator, V-Belt Pulley

  • Ultimate Custom Billet Look At Affordable Prices
  • Smooth Die Cast Housing w/Teardrop Design
  • Smooth Back w/Special Powermaster Vents
  • Gold Battery Post
  • Proof Of Performance Tags

    Note: Charge Wire Not Included.

  • Specifications:

    Amperage
    100 AMP
    Mounting
    OEM
    Belt Included
    NO
    Pulley Style
    V-Belt Pulley
    Pulley Included
    Yes
    Regulator Included
    Yes
    Advertised Amperage Output
    100 amps
    Alternator Brackets Included
    No
    Alternator Case Style
    GM 12si
    Alternator Finish
    Polished
    One-Wire Capable
    Yes
    Quantity
    Sold individually
    Regulator Style
    Internal
    Voltage Compatibility
    12
    Manufacturer's Part Number:
    27294

    GM has offered several series of alternators over the years, each time taking a step up in performance. The great thing about these alternators and aftermarket brackets is that for the most part they are interchangeable. Starting with the externally regulated 10dn alternator of the 1960s and moving all the way to the CS130D alternator of late, aftermarket brackets with rod end tensioners will interchange. The 2" mounting foot width is common to all of them and the 6.61" bolt spacing is common (except the CS130D has 7.24" bolt spacing, which many brackets accommodate). Race Prepped Alternators feature a balanced rotor for high rpm applications. .

    Features:
  • Excellent Idle Amperage
  • 1 or 3-Wire Operation
  • Most Popular GM
  • Straight Mount 6.61"
  • Available Up to 150 Amps

    Note: Charge Wire Not Included.

    Smooth Look Alternators:
  • The Ultimate Custom Billet look at affordable prices
  • Smooth die cast housing with teardrop design
  • One or three wire
  • Available in 100 and 140 amp output
  • Custom HV (high volume) fan - optional
  • Largest selection of fans, pulleys, nose cones, and baffle plates in the industry
  • Smooth back with special Powermaster vents for pull through cooling
  • Gold battery post
  • Available in 4 finishes
  • Proof-of-Performance Tag

    Alternator Plug Type

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

  • Does Powermaster 27294 fit your vehicle?

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    1985 GMC K3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET SUBURBAN

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1987 GMC R2500 PICKUP

    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 CHEVROLET V10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982-1985 GMC S15 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1975-1978 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1974 CHEVROLET G10 VAN

    • Liter: 5.7
    • SubModel: SPORTVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1976 CHEVROLET MALIBU

    • Liter: 6.6
    • SubModel: CLASSIC ESTATE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: LS

    1986 GMC S15 PICKUP

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1968 GMC C1500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1971 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 GMC K3500 PICKUP

    • Liter: 4.8
    • SubModel: HIGH SIERRA
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1968 CHEVROLET K10 PICKUP

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1986 CHEVROLET C30 PICKUP

    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973-1974 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 PONTIAC BONNEVILLE

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 GMC C1500 PICKUP

    • Liter: 6.2
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1987 GMC V1500 PICKUP

    • Liter: 6.2
    • SubModel: SIERRA CLASSIC
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1968 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: MALIBU
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1985 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET K10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979 CHEVROLET MALIBU

    • Liter: 4.4
    • SubModel: SPORT
    • CUI: 267
    • EngineType: V8 ( 4.4 L / 267 )

    1985 CHEVROLET G30 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE

    1987 GMC R1500 PICKUP

    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1982 CHEVROLET C30 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1983 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: CL

    1971 CHEVROLET CHEVELLE

    • CC: 6556
    • Liter: 6.6
    • SubModel: SS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985-1986 CHEVROLET C30 PICKUP

    • Liter: 6.2
    • SubModel: SCOTTSDALE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1979 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969-1971 CHEVROLET K20 PICKUP

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986 PONTIAC FIERO

    • EngineType: ALL
    • SubModel: SE

    1980-1981 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: ESPRIT
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1969 GMC C1500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975-1978 JEEP CJ5

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 232
    • EngineType: L6 ( 3.8 L / 232 )

    1985 CHEVROLET K30 PICKUP

    • Liter: 4.8
    • SubModel: CUSTOM
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1981 CHEVROLET C10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • SubModel: NOMAD
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1982 BUICK REGAL

    • EngineType: ALL
    • SubModel: LIMITED TURBO

    1977 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: 442
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 CHEVROLET K30 PICKUP

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1979-1981 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: STREET COUPE

    1964-1966 CHEVROLET CHEVY II

    • EngineType: ALL
    • SubModel: NOVA

    1964-1966 CHEVROLET K10 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1982-1983 CHEVROLET MONTE CARLO

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V6 ( 4.3 L / 260 )

    1985 CHEVROLET G30 VAN

    • EngineType: ALL
    • SubModel: CHEVY VAN

    1987 GMC R3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM

    1979 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: LANDAU

    1963 CHEVROLET CHEVY II

    • CC: 2507
    • Liter: 2.5
    • SubModel: NOVA
    • CUI: 153
    • EngineType: L4 ( 2.5 L / 153 )

    1985-1986 CHEVROLET C30 PICKUP

    • Liter: 4.8
    • SubModel: SILVERADO
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1972-1974 CHEVROLET MONTE CARLO

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: SILVERADO
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1985 CHEVROLET BLAZER K5

    • EngineType: ALL
    • SubModel: CUSTOM

    1980-1981 OLDSMOBILE CUTLASS

    • CC: 3800
    • Liter: 3.8
    • SubModel: BROUGHAM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1973 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1969 CHEVROLET CAMARO

    • CC: 3769
    • Liter: 3.8
    • SubModel: RS
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 5733
    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 GMC G35/G3500 VAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1981 PONTIAC FIREBIRD

    • Liter: 4.3
    • SubModel: FORMULA
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1985 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1979-1984 GMC C2500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1975-1977 JEEP CJ5

    • Liter: 4.2
    • SubModel: RENEGADE
    • CUI: 258
    • EngineType: L6 ( 4.2 L / 258 )

    1977 BUICK REGAL

    • Liter: 5.7
    • Aspiration: N
    • SubModel: SR
    • Engine Vin: R
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969-1971 CHEVROLET K10 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1964-1965 CHEVROLET C20 PICKUP

    • CC: 5704
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 348
    • EngineType: V8 ( 5.7 L / 348 )

    1980 CHEVROLET K30 PICKUP

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980-1981 OLDSMOBILE CUTLASS SUPREME

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 CHEVROLET K30 PICKUP

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C20 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1963-1967 CHEVROLET IMPALA

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1982 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1963 CHEVROLET CHEVY II

    • CC: 4638
    • Liter: 4.6
    • SubModel: NOVA
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1982-1983 BUICK REGAL

    • Liter: 4.3
    • SubModel: LIMITED
    • CUI: 260
    • EngineType: V6 ( 4.3 L / 260 )

    1963-1979 CADILLAC ELDORADO

    • EngineType: ALL
    • SubModel: ALL

    1983-1984 CHEVROLET G30 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: CHEVY VAN
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1967 CHEVROLET K10 PICKUP

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1969-1971 CHEVROLET K10 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1975 OLDSMOBILE CUTLASS

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1990 CHEVROLET K3500 PICKUP

    • Liter: 6.2
    • SubModel: SCOTTSDALE
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1972-1974 AMERICAN MOTORS HORNET

    • CC: 5900
    • Fitment_Note: w/2 in. Mount
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1981-1984 CHEVROLET MONTE CARLO

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 229
    • EngineType: V6 ( 3.8 L / 229 )

    1986 PONTIAC FIERO

    • EngineType: ALL
    • SubModel: VALUE LEADER

    1985 CHEVROLET K30 PICKUP

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 GMC C25/C2500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1966-1967 CHEVROLET EL CAMINO

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1967 CHEVROLET CHEVY II

    • CC: 4638
    • Liter: 4.6
    • SubModel: NOVA
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1970 CHEVROLET IMPALA

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1963-1966 CHEVROLET K10 PICKUP

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1973 CHEVROLET MONTE CARLO

    • CC: 7441
    • Liter: 7.4
    • SubModel: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1966-1967 CHEVROLET MALIBU

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1975 CHEVROLET IMPALA

    • CC: 5735
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 GMC SAFARI

    • Liter: 4.3
    • SubModel: SLE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979 CHEVROLET MALIBU

    • CC: 3800
    • Liter: 3.8
    • SubModel: CLASSIC LANDAU
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1975 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: CUSTOM
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