SKU: 337377375

Holley Premium Mid-Mount Complete Accessory System - 20-180

Sale price$1507.47 Regular price$1674.97
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Description

Holley Premium Mid-Mount Complete Accessory System - 20-180Overview: Holley's Premium 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

Overview:

Holley's Premium 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 an SFI certified damper w/hard anodized billet crank pulley. 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. The Premium Mid-Mount system comes with dress up pulley covers and an SFI certified damper. Partnered with this damper is a billet 6061-T6 aluminum hard anodized crank pulley. This system is ready for the racetrack if you want to play or just be ready for anything on the street.

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 cartridge 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!
  • Billet tensioner cover
  • Billet alternator, and compressor pulley covers
  • SFI certified damper w/hard anodized billet crank pulley
  • 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.

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 SFI Certified
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: 337377375

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Eliot Prescott
Chelsea, US
★★★★★ 5
Basic. Simple. Works.
Size: Medium Capacity
I've been wanting a toaster oven for simple stuff, like warming up frozen rolls, broiling an open faced sandwich, etc. Nothing fancy. Not looking to roast a chicken, bake a cake, etc. Just something for when a microwave won't do (you need crispy) and you don't want to heat up the whole kitchen by firing up a big oven (especially during the summer in Florida). This little appliance does the trick. Heats up instantly, no pre-heating. Melts the cheese on an open faced sandwich in just a couple of minutes. Has a crumb tray for easy clean up. The controls are super basic. I mostly use the toaster timer, which makes a hilariously retro ticking sound (apparently it uses an old-fashioned mechanical timer), and just watch through the glass window to see when things are done, since cook time is usually just a couple of minutes for what I'm doing. No digital displays or controls. Really basic. Which also means really inexpensive. Controls weren't immediately intuitive, but by "immediate" I mean that it took me all of a minute or two to figure out how to make the toaster oven do what I wanted. Simple. I already have a full-size oven for serious baking, so I didn't want to spend hundreds of dollars and take up a lot of counter space for a fancy appliance. This simple, small, inexpensive toaster oven is just what I needed -- basically a horizontal, enclosed toaster, just like I remember from the good 'ol days.
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Reviewed in the United States on May 6, 2024
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TJFrench
Chelsea, US
★★★★★ 5
Perfect for College Students
Size: Medium Capacity
We purchased this for our kiddos at college. So far it has worked great. They are able to cook small meals and it toasts well. They even use it to air fry! It also cleans up well and you can't beat the price!
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Reviewed in the United States on April 18, 2026
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KHG
Battle Creek, US
★★★★★ 4
Great little toaster oven!
Size: Medium Capacity
Great little oven! Heats up quickly, gets very hot very fast. Unit is small so don’t plan on preparing large amounts of food. This is a very lightweight oven that takes little counter space. Do be careful NOT to touch while in use as it very extremely hot!
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Reviewed in the United States on May 27, 2026
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Amazon Customer
Whiting, US
★★★★★ 5
Love da' Mini Oven
Size: Medium Capacity
I LOVE this Mini Oven thingy. And, for a while, I had this reluctancy to even purchase one of these for some reason. But now that I have one, convinced by my wonderful current roommate that this would absolutely be a necessity, I gave in and bought one! What I really dig about this mini oven is that it lights immediately, it's fast, easy to use, easy to clean and efficient to bake, toast, broil!
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Reviewed in the United States on April 26, 2026
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Amazon Customer
Grantham, US
★★★★★ 5
Best toaster oven/air fryer
Size: Medium Capacity
Works great, love it.
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Reviewed in the United States on June 8, 2026

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