Holley 20-159 Low LS Accessory Drive Bracket - Passenger's Side A/C Bracket

Low LS Accessory Drive Bracket - Passenger's Side A/C Bracket - Use w/ Sanden SD7 Compressor Only

PART# 20-159

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Holley's new Low Mount Accessory Drive Brackets and Complete Systems have the components tucked in tighter to the block and mounted lower for a more attractive and compact package. Ideal for LS engine swaps with limited space or where a low, more attractive appearance is desired.

These kits supply the required brackets and hardware needed for installation, but allow you to choose the source for supplemental accessories and components that are often already on the donor engine or host vehicle. Whether sourcing from the salvage yard, the local auto parts store, your GM parts dealer, or Holley, you pick the accessories that match your needs and budget!

A Fitment and Required Components Guide helps you locate and source components and provides other notes and helpful hints. Three easy steps will get you going. Step one is to determine your belt alignment based on your crank pulley position on the engine you have. Step two is to choose the Holley accessory drive brackets that you need (A/C, Alt & P/S or both). Step three is to see if and installation kit is for required for your crank pulley position. The Low LS A/C bracket and complete A/C kits fit the standard, middle or long spacing.


  • Small Compact Accessory Brackets & Complete Kits
  • Modular System â€" Buy Brackets & Installation Kit or Complete Kits
  • Fits Standard, Middle and Long Accessory Spacing
  • Cost Effective Solution
  • Also works on LSA supercharged engines

Product Attributes

Emission Code5
Manufacturer Part Number20-159
Product TypeAccessory Drive Kits
Part Number20-159



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.

Tech Resources

Low LS Mount A/C brackets and systems require the use of the Sanden SD7 Compressor. This bracket doesn't require an installation kit since it has multiple holes in the bracket for standard, middle and long spacing.

The R4 or SD508 compressor can be used w/ the traditional high mount brackets 20-133 or 20-134 (along with the appropriate installation kit 21-1 for Standard, 21-2 for Middle Spacing, and 21-3 for Long Spacing).

***For all LS Engine Swaps-Please refer to your specific body style engine mount kits for additional modification and fitment requirements.
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    Some parts are not legal for use in California or other states with similar regulations.