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Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC

-7%

#42520133

Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC

Name: Holley 20-133 RF Compressor LS Acc Drive Brackets, Pass. Side AC
Brand: Holley
SKU: 42520133
Price: 273.95 USD
Availability: InStock
Rating: 5 (2 reviews)

2 Reviews

1 Question

$273.95

/each

Factory Shipped

$296.95

Save $23.00

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Product Summary

Hardware Included, Passenger Side Mounting Side

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Key Specs

MFG. Part #	20-133
Brand	Holley
Hardware Included	Yes
Fits A/C Compressor Style	Harrison R4
Mounting Side	Passenger Side

See more specs

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Holley 20-133 Details

These accessory drive brackets from Holley are great when swapping a GM LS engine into a muscle car, truck, hot rod or other vehicle. These brackets were designed to deliver a factory style appearance, correct belt alignment, and factory stability. Holleys kits supply the required brackets and hardware needed for installation.

To determine correct application, these three easy steps will help 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 which Holley installation kit your set–up requires to line up your accessories with your crank Pulley position. An application specific installation kit (part #425-211,425-212, or425-213) is REQUIRED for most applications.

Note: When referring to guide links below, keep in mind that part numbers shown are MFG numbers without "425" prefix.

Item Details

This bracket kit REQUIRES an installation kit for assembly
(Part 425-211, 425-212, OR 425213, see Fitment Guide
for the correct installation kit for your application).

Holley's 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!

Installation Notes:
Works with R4 A/C compressor and Corvette driver's side bracket; Requires application specific installation kit

Key Features:

The most cost effective LS bracket solution on the market!
Universal brackets fit virtually all common LS engines regardless of water pump and harmonic balancer offsets reducing cost and complexity compared to competitive products
Simple, dedicated installation kits allow easy fitment to Corvette, F–Body or Truck drive offsets
Utilizes commonly available and affordable GM alternators, power steering pumps and A/C compressors
A/C brackets position the compressor high above the cross–member but below the hood line for easy installation and great looks
A/C brackets are also a bolt on solution to relocate A/C compressor on engines using a GM Corvette accessory drive system
A/C bracket accepts GM R4 compressor
OEM quality natural finish die castings for clean looks and durability. Can be polished, coated, painted or plated.
OEM spec flanged head hardware included to match your factory LS engine hardware
Complete accessory drive kits include all components and accessories
Ideal for crate engines, take out motors and engine builders!

Key Features:

The most cost effective LS bracket solution on the market!
Universal brackets fit virtually all common LS engines regardless of water pump and harmonic balancer offsets reducing cost and complexity compared to competitive products
Simple, dedicated installation kits allow easy fitment to Corvette, F–Body or Truck drive offsets
Utilizes commonly available and affordable GM alternators, power steering pumps and A/C compressors
A/C brackets position the compressor high above the cross–member but below the hood line for easy installation and great looks
A/C brackets are also a bolt on solution to relocate A/C compressor on engines using a GM Corvette accessory drive system
A/C bracket accepts GM R4 compressor
OEM quality natural finish die castings for clean looks and durability. Can be polished, coated, painted or plated.
OEM spec flanged head hardware included to match your factory LS engine hardware
Complete accessory drive kits include all components and accessories
Ideal for crate engines, take out motors and engine builders!

Charts

Fitment and Required Components Guide for 20-133 Bracket Kit (PDF)

Assembly Instructions for Holley 20-133 Accessory Drive Kit (PDF)

Guides & Documents

A/C Compressor Brackets Installation Instructions (42520133)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

Holley 20-133 Specifications

KEY SPECS
MFG. Part #	20-133
Brand	Holley
Hardware Included	Yes
Fits A/C Compressor Style	Harrison R4
Mounting Side	Passenger Side

GENERAL
GTIN Code	090127682166
Sold in Quantity	Kit

Ratings & Reviews

2 Reviews

Overall Assessment

Customers consistently praise the product's high-quality construction and practical design. The cast aluminum construction is particularly highlighted, reflecting positively on the material quality. The product's adaptability is well-regarded due to its modular design, enabling compatibility with various LS balancer and water pump spacing. While there are extra costs linked to additional components not included with the product, users regard the cost as justified given its solid construction and factory-stock appearance. Comparatively, our product is admired over cheaper aftermarket alternatives due to its exceptional features and long-lasting performance.

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2 reviews

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Sort Reviews

5.3 install into a 91 K1500.

5.0

4 years ago

Tyler Luna

Columbia, TN

Verified

I had replaced the compressor & lines on my 91 K1500 with TBI engine a couple of years ago, so I didn't want to have to replace everything again with the LS swap. This works perfect for that, & the cast aluminum construction looks like a factory item, much better than the other aftermarket brackets. The modular design allows it to be used with any of the LS balancer & water pump spacing. Unfortunately, this also adds to the cost, as you have to purchase compressor bracket & the required spacer separately. And the spacer kit includes components you probably won't use. Also, the idler & tensioner are not included & must be bought separately. And since they use Corvette items, be prepared to pay a premium. So it ends up costing you about double what the cheaper aftermarket products cost. Is it worth it? For the rock solid construction, & factory stock appearance, I believe it is.

Would Recommend

AC brackets

5.0

10 years ago

Tommy

Laporte Texas

Verified

Perfect

Showing 2 of 2 reviews

Questions & Answers

1 Question • 1 Answer

Sort Questions

is this bracket for the sanden 508 a/c compressor 2001 LS1 installed into a1970 C-10 1/2 ton .vintage sure fit unit is the ac and they use the sanden compressor. thank you Rick

by steve59

• 13 years ago

1 answer

View Answer

1 of 1 questions shown

Fitment

2004 Buick Rainier

GM LM4

2004-2005 Cadillac CTS

GM LS6

2006-2007 Cadillac CTS

GM LS2

2009-2014 Cadillac CTS

GM LSA

2002-2011 Cadillac Escalade

GM LM7
GM LQ9

2012 Cadillac Escalade

6.2 Chevy LS V8

2003-2006 Cadillac Escalade ESV

GM LM7
GM LQ9

2007-2012 Cadillac Escalade ESV

6.2 Chevy LS V8

2002-2006 Cadillac Escalade EXT

GM LM7
GM LQ9

2007-2012 Cadillac Escalade EXT

6.2 Chevy LS V8

2007-2011 Chevy Avalanche

GM L76
GM LC9
GM LMG
GM LY5

2012-2013 Chevy Avalanche

GM LY5

2002-2006 Chevy Avalanche 1500

GM LM7

2000-2002 Chevy C1500

4.8 Chevy LS V8
GM LM7
GM LQ4

1998-2002 Chevy Camaro

GM LS1

2010-2014 Chevy Camaro

GM LS3

1997-2000 Chevy Corvette

GM LS1

2001-2004 Chevy Corvette

GM LS1
GM LS6

2005-2007 Chevy Corvette

GM LS2

2008-2013 Chevy Corvette

GM LS3

1999 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2000-2011 Chevy Silverado 1500

4.8 Chevy LS V8
GM L20
GM LM7
GM LY2

2012-2014 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2007 Chevy Silverado 1500 Classic

GM LQ4

2001-2003 Chevy Silverado 1500 HD

GM LQ4

2005-2006 Chevy Silverado 1500 HD

GM LQ4

2007 Chevy Silverado 1500 HD

GM LQ9

2007 Chevy Silverado 1500 HD Classic

GM LQ4

2000-2004 Chevy Silverado 2500

GM LM7
GM LQ4

2005 Chevy Silverado 2500

GM LQ9

2001-2011 Chevy Silverado 2500 HD

GM LQ4

2007 Chevy Silverado 2500 HD Classic

GM LQ4

2001-2006 Chevy Silverado 3500

GM LQ4

2007 Chevy Silverado 3500 Classic

GM LQ4

2007-2011 Chevy Silverado 3500 HD

GM LQ4

2014-2017 Chevy SS

GM LS3

2003-2004 Chevy SSR

GM LM4

2014 Chevy Suburban

GM LMG
GM LY5

2000-2001 Chevy Suburban 1500

GM LM7

2002-2006 Chevy Suburban 1500

GM L59
GM LM7

2007-2009 Chevy Suburban 1500

GM LC9
GM LMG
GM LY5

2010-2011 Chevy Suburban 1500

GM LC9
GM LMG

2012-2014 Chevy Suburban 1500

GM LMG
GM LY5

2000-2006 Chevy Suburban 2500

GM LQ4

2012-2013 Chevy Suburban 2500

GM LMG
GM LY5

2000-2006 Chevy Tahoe

4.8 Chevy LS V8
GM L59
GM LM7

2007 Chevy Tahoe

4.8 Chevy LS V8
GM LMG
GM LY5

2008 Chevy Tahoe

6.2 Chevy LS V8
GM LC9
GM LMG

2009-2011 Chevy Tahoe

GM LC9
GM LMG

2012-2014 Chevy Tahoe

GM LMG
GM LY5

2002-2005 Chevy Trailblazer

GM LH6

2006-2009 Chevy Trailblazer

GM LS2

2002-2009 GMC Envoy

GM LM4

2002-2006 GMC Envoy XL

GM LM4

2004-2005 GMC Envoy XUV

GM LM4

2001-2005 GMC Savana 1500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LM7
GM LQ4

2007-2014 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LQ4

2001-2005 GMC Savana 2500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 2500

4.8 Chevy LS V8
GM L33
GM LQ4

2002-2005 GMC Savana 3500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 3500

4.8 Chevy LS V8
GM L33
GM LQ4

1999-2011 GMC Sierra 1500

GM L20
GM LC9
GM LMG

2007 GMC Sierra 1500 Classic

GM L33
GM L59
GM LM7

2001-2003 GMC Sierra 1500 HD

GM LQ4

2005-2006 GMC Sierra 1500 HD

GM LQ4

2007 GMC Sierra 1500 HD Classic

GM LQ4

1999-2001 GMC Sierra 2500

GM LM7
GM LQ4

2002-2004 GMC Sierra 2500

GM LQ4

2001-2011 GMC Sierra 2500 HD

GM LQ4

2007 GMC Sierra 2500 HD Classic

GM LQ4

2001-2006 GMC Sierra 3500

GM LQ4

2007 GMC Sierra 3500 Classic

GM LQ4

2001 GMC Sierra C3

GM LQ4

2000-2011 GMC Yukon

4.8 Chevy LS V8
GM L20
GM LM7
GM LY2

2012-2013 GMC Yukon

GM LC9
GM LMG

2000 GMC Yukon XL 1500

GM LM7

2001-2011 GMC Yukon XL 1500

GM L59
GM LM7
GM LQ4

2000-2011 GMC Yukon XL 2500

GM LQ4

2003-2007 Hummer H2

GM LQ4

2008-2009 Hummer H2

6.2 Chevy LS V8

2008-2009 Hummer H3

GM LH8

2009 Hummer H3T

GM LH8

1998-2002 Pontiac Firebird

GM LS1

2009 Pontiac G8

GM LS3

2004 Pontiac GTO

GM LS1

2005-2006 Pontiac GTO

GM LS2