Holley 197-300 | Alternator

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Smaller lighter alternator for use with Holley accessory brackets. This alternator is recommended for use with the LS low mount accessory brackets but can also be used where clearance matters on all other Holley LS brackets. This alternator can also be use with accessory brackets & kits 20-131, 20-132, 20-135, and 20-155. This alternator is located in the stock F-Body location when used with bracket 20-155 or drive kits 20-156 and 20-162. This alternator is interchangeable with GM #10480326.

BRAND: Holley


  • Alternator| For Use w/LS Brackets| 105 AMP| Small Case|
  • 105 AMP Outlet
  • Recommended For Use w/LS Low Mount Brackets
  • Alternator 105 Amp Small Case
  • Use When Clearance Matters
  • Dress Up Service Parts
  • Alternator
  • Small and Lighter
  • Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles| Uncontrolled (Non-Emissions Controlled) Vehicles| and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations


Amperage105 AMP
Engine Make/SizeGM LS
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Customer Questions
Will the alternator drain my battery?
No, the alternator is not designed to drain the battery. Instead, it charges the battery while the engine is running. If your battery is being drained, it could be due to a variety of factors, and it's recommended to have your vehicle inspected by a mechanic.
How do alternators work?
Alternators convert mechanical energy from the engine into electrical energy to power the vehicle's electrical system and charge the battery. They consist of a rotor, stator, and voltage regulator, which work together to produce electrical energy that is used to power the vehicle's electrical components and charge the battery.
Which alternator do I need?
To determine which alternator you need, consider your vehicle's make and model, engine size, and electrical system requirements.
Which alternator system is controlled by the PCM?
The variable voltage alternator system is commonly controlled by the PCM in modern vehicles.
Please, mind that only logged in users can submit questions

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