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Holley Premium Alternators 197-303 Alternators, Premium, OE Style, Cast Aluminum, Black Anodized, 150 amps, 12V, Internal Regulator, Serpentine Pulley, Chevy, 4.8-7.0L, Each

SKU: HLY197-303

Alternators and Generators

Holley Premium Alternators 197-303 Alternators, Premium, OE Style, Cast Aluminum, Black Anodized, 150 amps, 12V, Internal Regulator, Serpentine Pulley, Chevy, 4.8-7.0L, Each

SKU: HLY197-303

Alternators and Generators
A$1,355.80
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

With performance engines pushing redlines up higher and higher, alternators are being forced beyond their design. Holley's premium alternators can tolerate 30 percent higher rpms than conventional models. The attention to cosmetic detail on these units is above and beyond what you would expect, too. The entire outside housing has been sculpted for a smooth silhouette that hides the ugly details we typically think of as alternators. If you drag race, autocross, or just hot rod your ride, be assured that Holley premium alternators won't fly apart on you.

Features:

* Available in natural, black, and polished finishes
* Works with all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks, and many other applications
* 150 amp output
* Smaller and lighter than Holley high-amp alternators
* Housings are smoothed to make polishing clean (no buffer cut marks trying to get in tight corners)
* Rear cover is aluminum instead of typical black plastic
* Ideal when size and clearance matter
* Black and polished pulley covers are available on models that don't already include them
* Designed for use with Holley alternator weatherproof pigtails (not included)

Part Type

Alternator Serpentine GM 150amp 1-Wire Black

Data: v4.2 - Upd: 2026-10-17 03:06:44

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
197-303
Product Attributes - Part Type
Alternators and Generators
Product Attributes - Product Line
Holley Premium Alternators
Product Attributes - UPC
090127017784
Product Attributes - Remanufactured
No
Product Attributes - Advertised Amperage Output
150 amps
Product Attributes - Color
Black
Product Attributes - Coating Type
Anodized
Product Attributes - Voltage Compatibility
12
Product Attributes - One-Wire Capable
Yes
Product Attributes - Pulley Included
Yes
Product Attributes - Pulley Style
Serpentine
Product Attributes - Regulator Included
Yes
Product Attributes - Alternator Regulator Location
Internal
Product Attributes - Belt Included
No
Product Attributes - Alternator Brackets Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Fits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.

Reference Information

Brand Name/s Holley
StreetFX SKU hly197-303
SFX Item ID 4783245
Supplier Item Code 4783245
Manufacturer SKU 197-303
Manufacturer UPC 90127017784
Alternative References HOL197-303, 12V, 4.8-7.0L

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Application NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2014
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Application NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Application NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Application NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.
  • MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size7.0L/427
    Application NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376
    Application NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.

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