Holley Polished Mid-Mount Complete Accessory System - 20-185P
SKU: 15533649428

Holley Polished Mid-Mount Complete Accessory System - 20-185P

Sale price$1394.97 Regular price$1549.97
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Description

Holley Polished Mid-Mount Complete Accessory System - 20-185POverview: 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

Overview:

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.

Features:

  • 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.
  • Polished Finish
  • All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and the crank damper.

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

A/C Compressor Included Yes
A/C Compressor Type SD7
Accessory Drive Style Mid Mount
Alternator Amperage 150
Alternator Included Yes
Application GM LS
Belt Included Yes
Brand Holley
Choose Your Part Accessory Drive Kits
Damper Included Yes
Damper Style Cast Damper
Emission Code 5
Engine GM LS
Finish Polished
Inlet Size 35.4mm/1.4"
Material Cast Aluminum
Output 150 Amps
Power Steering Hardline Included Yes
Power Steering Pulley Included Yes
Power Steering Pump Included Yes
Power Steering Reservoir Included Yes
Product Type Accessory Drive Kits
Pulley Style Serpentine
Tensioner Included Yes
Thermostat Included Yes
Warranty Limited 90 Day
Water Neck Included Yes
Water Pump Included Yes
Water Pump Pulley Included Yes
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 15533649428

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Alex899
Natrona Heights, US
★★★★★ 5
Worth it!
Format: Paperback
Great book to help keep kids engaged and excited to tour through Paris. Recently used it on our trip with 5-8 year olds and had a blast searching for paintings in museums or various sites through the city. Had some interesting facts/history to share about the various places (although wish it had more)
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Reviewed in the United States on January 2, 2025
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Verified Purchase
Kathryn Wetzel
Boise, US
★★★★★ 4
Kept a 10 year old engaged
Format: Paperback
I bought this for my 10 year old for our trip to Paris. It contained some activities that kept him interested during our museum/castle trips. It even lead us to Chateau de Vincennes which we wouldn’t have found on our own! The Louvre hunt had us going all over the place (mainly because he can’t leave anything incomplete) but it helped initiate conversations about history. The only issue is that the Notre Dame challenge is sadly impossible to complete now based on the fire in April. I also wish something would be added regarding Les Invalides. If you have elementary aged kids then I would highly recommend.
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Reviewed in the United States on August 8, 2019
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Excellent addition to a trip
Format: Paperback
Just got back from Paris. My 9 year old daughter loved using this book throughout our adventures. It was light enough to carry with us each day and had a nice mix of information to read and things to look for. There were A LOT of different sites listed. In a week we still didn't get to some of them. Would definitely buy one of these books for another trip.
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Reviewed in the United States on June 22, 2025
C
Verified Purchase
Cortessa Russell
Port Orchard, US
★★★★★ 5
A must-have for Grade-schoolers going to Paris
Format: Paperback
This was an absolutely wonderful Secret Agent Spy book that kept our kids engaged throughout our time in Paris. I bought a copy for each of our three children. This book was perfect for my 8 and 9 year-old, my 6 year old was only moderately engaged. It could be her personality, it could be her age. But what this book did do was bring to life the main tourist attractions we were dragging them to. We spent 4 hours at the Louvre, and once we were done with that Mission, my older two were immediately wanting to move on to the missions that took place just outside the Louvre. The writing is appropriate without being condescending or too simple. Highly recommend this for any grade-schooler. May be ok for middle schoolers too. Thanks Catherine Aragon!
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Reviewed in the United States on September 18, 2019
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Percy's mom
Draper, US
★★★★★ 5
A must read
Format: Kindle
I always look forward to Kris Bryant's books. Scandalous did not disappoint.
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Reviewed in the United States on November 15, 2025

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