Holley Premium Mid-Mount Complete Accessory System

Gen III Hemi Engine - VVT - Fits 2009 & Up 5.7L & 2011 & Up 6.4L Engines - Natural Cast Finish - SFI Certified Damper with Billet Aluminum Pulley

Part # 20-293
Estimated Ship Date: 03/31/2023
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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.

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Holley's complete, mid-mount accessory system has all accessories pulled in tighter than other accessory drives. At the heart of the system is a "bracketless" design (patent pending), where the accessories bolt directly to the timing cover for a clean, integrated system. The design offers superb engine visibility to show off your horsepower, not your accessories. Among the many swap friendly features are two optional heater connection configurations. The innovative Holley premium alternator incorporates 6-phase and square wire technology. The compact and reliable SD7 A/C compressor and Type II P/S pump with baffled reservoir are also integrated. The kit utilizes Holley's proven cartridge style water pump. When we say "complete", we mean complete. The Mid-Mount system comes with everything you need. All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and the crank damper. All pulleys and the belt are supplied. Even heater hose adapters, power steering to -6 AN hardline, and the alternator plug/harness are included. Easy assembly was a priority during the entire development of this accessory solution. Color graphical instructions walk you through every step of the ultra-easy installation. This accessory drive system fits following VVT Engines: 2009-Up 5.7L 2011-UP 6.4L


  • Bracketless Accessory Mounting System for Ultra-Easy Assembly – Timing Cover is Integrated into this Bracket / Casting
  • Configurable Heater Hose Connection Options - for Hose Routing Flexibility
  • Holley Premium 150 Amp alternator – Plenty of Power for All Vehicle Systems
  • Easy Wiring of Alternator That Doesn’t Require Factory ECU to Excite Alternator
  • Alternator is Tucked in Tight to the Engine – Eliminates Frame Rail or Hood Clearance Issues (Common with Factory Car or Truck Drive Systems)
  • Holley Water Pump w/ Cartridge Design – Compact & Easy to Service Without Removing the Water Pump Housing / Timing Cover
  • SD7 A/C Compressor – Small Compact Compressor
  • Type II Power Steering Pump with Baffled Reservoir
  • Power Steering Pump Has Proper Pressure for use with Steering Box on Older Vehicles (Eliminates Steering Box Damage Due to Excessive Pressure)
  • Swivel Water Inlet & Outlet – Allows Custom Radiator Hose Routing
  • OE (Original Equipment) Pulley Ratios for Optimal Accessory Performance
  • No Adapters or Spacers Needed – for Easy Installation
  • Works with Common After-Market and Factory Throttle Bodies and Intakes
  • Choose from Kits in Natural Aluminum or Black Finish – Fits Naturally Aspirated Gen III Hemi Engines (5.7L, 6.1L, and 6.4L)
  • Includes OE Style Damper with Cast in Serpentine Pulley
  • All Accessories are Included; Water Pump, A/C Compressor, Alternator, Power Steering Pump w/ Reservoir, Pulleys & Crank Damper
  • All Plumbing Adapters, Wiring Adapters, Gaskets and Seals are Included
  • Available for VVT (Variable Valve Timing – 2009-Up 5.7L and 2011-Up 6.4L) and Non-VVT (2003-2008 5.7L, and 2005-2010 6.1L) Engines in Natural Cast Aluminum or Black Finish

About Holley

Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start to finish, Holley has the parts to make your dream a reality.

A/C Compressor IncludedYes
A/C Compressor TypeSD7
Accessory Drive StyleMid Mount
Alternator Amperage150
Alternator IncludedYes
ApplicationGen III Hemi
Belt IncludedYes
Brand Holley
Choose Your PartAccessory Drive Kits
Damper IncludedYes
Damper StyleSFI Certified
Emission Code5
EngineGen III Hemi - VVT
Inlet Size1.75
MaterialCast Aluminum
Outlet Size1.75
Output150 Amps
Power Steering Hardline IncludedYes
Power Steering Pulley IncludedYes
Power Steering Pump IncludedYes
Power Steering Reservoir IncludedYes
Product TypeAccessory Drive Kits
Pulley StyleSerpentine
Tensioner IncludedYes
Thermostat IncludedYes
WarrantyLimited 90 Day
Water Neck IncludedYes
Water Pump IncludedYes
Water Pump Pulley IncludedYes
Part Number20-293

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.
Limited 90 Day: See Details

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.