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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$1,359.72
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

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Description

Alternator - 150 amps - 12V - 1-Wire - 6-Rib Serpentine Pulley - Aluminum Case - Black Anodized - GM LS-Series - Each


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:16:07

Data: v4.2 - Upd: 2026-11-08 06:33:25

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Holley, Hilborn, Holley Efi, Retrobright, Terminator X
StreetFX SKU hly197-303
SFX Item ID 4783245
Accounting SKU hly-197-303
Manufacturer SKU 197-303
Manufacturer UPC 090127017784
Alternative References 197-303, HLY-197-303, HOL197-303

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

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)

Product Attributes
BrandHolley
Manufacturer's Part Number197-303
Part TypeAlternators and Generators
Product LineHolley Premium Alternators
UPC090127017784
RemanufacturedNo
Advertised Amperage Output150 amps
ColorBlack
Coating TypeAnodized
Voltage Compatibility12
One-Wire CapableYes
Pulley IncludedYes
Pulley StyleSerpentine
Regulator IncludedYes
Alternator Regulator LocationInternal
Belt IncludedNo
Alternator Brackets IncludedNo
QuantitySold individually.
NotesFits all Holley accessory brackets, as well as 4th generation F-body, most 1998 thru 2004 GM trucks.

Compatibility

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