

Holley Performance 20-185BK Accessory Drive Component Mount Set
Key item features
- Integrated Design: Features a bracketless accessory mounting system where components bolt directly to the water pump for a clean, integrated form and enhanced engine visibility.
- Comprehensive Components: Includes all necessary accessories: water pump, A/C compressor, alternator, power steering pump with reservoir, crank damper, pulleys, and belt.
- Optimized Clearance: Designed with bottom outlet heater hose options and a shortened top outlet nipple for improved clearance and routing in swap applications.
- Advanced Alternator: Incorporates an LT1 style premium 150 amp alternator utilizing 6-phase technology, similar to the C7 Corvette.
- Efficient Water Pump: Utilizes an LT1 style water pump cartridge design, sharing design efficiencies with the C7 Corvette.
- Versatile Compatibility: Works with all common aftermarket and factory throttle bodies and intakes, VVT applications, and Hooker turbo manifolds, fitting all LS engines except dry sump and/or supercharger.
- Precise Ratios: Equipped with OE pulley ratios to ensure optimal accessory performance without the need for adapters or spacers.
Specs
- Vehicle modelHOL20-185BK
- Vehicle fitment typeSpecific
- Automotive parts divisionPerformance
- BrandHolley
- Automotive specialty part typeAccessory Drive Kits
- FeaturesEasy Installation
- Free shipping
Free 60-day returns
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| Vehicle model | HOL20-185BKHolley Performance 20-185BK Accessory Drive Component Mount Set | 20-370BKHolley 20-370BK Holley Small Block Ford Mid-Mount Complete Accessory System | 20-370Holley 20-370 Holley Small Block Ford Mid-Mount Complete Accessory System | 20-162PHolley Performance 20-162P Low LS Accessory Drive System Kit | 89094Dayco 89094 Fits select: 2013-2018 RAM 2500, 2003-2012 DODGE RAM 2500 | LSHolley Performance 20-135 Accessory Drive Component Mount Set | 97-249Holley 97-249 Idler Pulley-Smooth LT4 GM Engine | CX2553VALVE - EXHAUST GAS (P) | 20-345BKHolley 20-345BK Holley Godzilla High-Mount Accessory Drive - F100 Swap - Complete - Black |
|---|---|---|---|---|---|---|---|---|---|
| Vehicle fitment type | SpecificHolley Performance 20-185BK Accessory Drive Component Mount Set | UniversalHolley 20-370BK Holley Small Block Ford Mid-Mount Complete Accessory System | UniversalHolley 20-370 Holley Small Block Ford Mid-Mount Complete Accessory System | SpecificHolley Performance 20-162P Low LS Accessory Drive System Kit | SpecificDayco 89094 Fits select: 2013-2018 RAM 2500, 2003-2012 DODGE RAM 2500 | SpecificHolley Performance 20-135 Accessory Drive Component Mount Set | SpecificHolley 97-249 Idler Pulley-Smooth LT4 GM Engine | SpecificVALVE - EXHAUST GAS (P) | SpecificHolley 20-345BK Holley Godzilla High-Mount Accessory Drive - F100 Swap - Complete - Black |
| Automotive parts division | PerformanceHolley Performance 20-185BK Accessory Drive Component Mount Set | PerformanceHolley 20-370BK Holley Small Block Ford Mid-Mount Complete Accessory System | PerformanceHolley 20-370 Holley Small Block Ford Mid-Mount Complete Accessory System | PerformanceHolley Performance 20-162P Low LS Accessory Drive System Kit | -Dayco 89094 Fits select: 2013-2018 RAM 2500, 2003-2012 DODGE RAM 2500 | PerformanceHolley Performance 20-135 Accessory Drive Component Mount Set | PerformanceHolley 97-249 Idler Pulley-Smooth LT4 GM Engine | -VALVE - EXHAUST GAS (P) | PerformanceHolley 20-345BK Holley Godzilla High-Mount Accessory Drive - F100 Swap - Complete - Black |
| Automotive specialty part type | Accessory Drive KitsHolley Performance 20-185BK Accessory Drive Component Mount Set | Accessory Drive Belt KitHolley 20-370BK Holley Small Block Ford Mid-Mount Complete Accessory System | Accessory Drive Belt KitHolley 20-370 Holley Small Block Ford Mid-Mount Complete Accessory System | Accessory Drive System KitHolley Performance 20-162P Low LS Accessory Drive System Kit | Belt Tensioners & PuDayco 89094 Fits select: 2013-2018 RAM 2500, 2003-2012 DODGE RAM 2500 | -Holley Performance 20-135 Accessory Drive Component Mount Set | Idler PulleyHolley 97-249 Idler Pulley-Smooth LT4 GM Engine | Emission ControlVALVE - EXHAUST GAS (P) | Accessory Drive Belt KitHolley 20-345BK Holley Godzilla High-Mount Accessory Drive - F100 Swap - Complete - Black |
About this item
Product details
Holley's Mid-Mount complete 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 water pump for a clean, integrated form. The design offers superb engine visibility to show off your horsepower, not your accessories. Among the many swap friendly features are bottom heater outlets for clearance in tight applications. The Holley designed alternator is just as innovative. This premium alternator utilizes 6-phase technology as found on the C7 Corvette. The water pump also shares its design efficiencies with that of the C7 Corvette. The compact and reliable SD7 A/C compressor and Type II P/S pump with baffled reservoir are also integrated.
The Mid-Mount drive completes Holley's trilogy of accessory solutions giving a third option compared to the High and Low-Mount previously released. All three accessory solutions are for LS engines.
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.;
- Bracketless accessory mounting with ultra-easy assembly
- Bottom outlet heater hose options for swap application clearance
- LT1 style premium 150 amp alternator
- LT1 style water pump cartidge design
- Compact SD7 A/C compressor
- Type II power steering pump with baffled reservoir
- P/S adapter hardline to AN -6 adapter included
- Steam tube input port
- Shortened top outlet nipple for more radiator hose turns and routing room
- OE pulley ratios for optimal accessory performance
- No adapters/spacers required!
- Works with all common aftermarket and factory throttle bodies and intakes.
- Works with VVT applications
- Works with Hooker turbo manifolds.
- Fits ALL LS engines except with dry sump and/or supercharger.
- Black Finish
- All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and the crank damper.
Specifications
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Vehicle fitment type
Automotive parts division
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Warranty
Warranty information
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Customer ratings & reviews
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Showing 1-1 of 1 review
Good design, early parts failure
I bought the kit back in April of 2019. The kit made my life really simple when I went to install it. It really fits well if you room in front of the engine and not on the sides of the engine. It Took me a while to get my car running, but once I did I made it to about 160 miles on a fresh build. When it was on the dyno, I start to hear a screaching noise...which turned out to be the water pump. The gear (coolant side gear that circulates coolant) started to BACK OFF the water pump. The screeching I heard was the water pump blades grinding into the water manifold. JEGS was real good about replacing it EVEN THOUGH this product only has a 90 day warranty (I was on day 100 when I called) Now I know why! My first and LAST Holley product for sure.









