Holley 20-185 Mid-Mount Complete Accessory System LS-Natural
SKU: 31506365945

Holley 20-185 Mid-Mount Complete Accessory System LS-Natural

Sale price$1079.97 Regular price$1199.97
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Description

Holley 20-185 Mid-Mount Complete Accessory System LS-NaturalOverview: 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.
  • 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 Cast
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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31506365945

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Dianne S
Pawtucket, US
★★★★★ 4
It only fits smaller wrists
This watch is beautiful, but the cuff type band is very small. (reason for minus one star). I still wear it some, but I have to keep moving it around for it to be more comfortable. If you are on the thinner side, you will love this watch. It came on time and the packaging was sturdy. All in all, it works good, it’s sharp looking, and the price is great.
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Reviewed in the United States on June 2, 2025
L
Verified Purchase
Loves books and gardens
Dallas, US
★★★★★ 5
For a very petite wrist
I have a child-size wrist at 5.5 inches. It is hard to find watches small enough! This watch has a 6 inch fit, fitting my arm with a little wiggle room. It has spring sides for ease of putting it on, but won't allow for stretch or adjustment. Therefore, it will be tight on a standard 7 inch wrist. I am delighted with my purchase, but was hesitant to buy based on unclear size. I wanted to clarify for you the actual size to expect. I included a pic from the top and bottom of watch on my wrist, hoping to demonstrate the snug size on a tiny arm. It's a beautiful watch with unique style, and fit.
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Reviewed in the United States on February 4, 2024
S
Verified Purchase
Serenity
Grantham, US
★★★★★ 1
Not the watch I want
Too small and I have a skinny wrist. I am sending it back for a refund.
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Reviewed in the United States on April 29, 2026
B
Verified Purchase
Brenda L Villalta
Belleville, US
★★★★★ 5
Its Gorgeous! Worth the money!
STUNNING! 🤩 so much more beautiful than description. You can ware every day or even to a wedding! Yes I am totally serious!! I never get so excited over anything Amazon. Just received this AM. Great quality product for the money 💰. Very comfortable, and a great gift for any woman or a sweet 16 birthday! I will definitely follow up as time goes on to update everyone on how well it works. Go get yourself or that special someone a beautiful gift or buy some to hold on to for the someone special in your life. Better get one quick before they’re all GONE!! TOTALLY LOVE IT 🥰
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Reviewed in the United States on May 28, 2026
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Stephanie
Birmingham, US
★★★★★ 3
Easily breaks
Easily breaks.
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Reviewed in the United States on October 19, 2025

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