SKU: 337377375

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

Sale price$1507.47 Regular price$1674.97
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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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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4.9 ★★★★★
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Product Reviews
M
Verified Purchase
MM
Omaha, US
★★★★★ 5
Great for tough chewers!
Color: carrot orange
This is awesome for my 85# Labrador. He is very destructive with toys and this has held up great. After months of playing with it, only teeth marks on it. Worth every penny. The green top crinkles which my dog loves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
M
Verified Purchase
Minh Ngo
Lake Worth, US
★★★★★ 5
My dog was obsessed with these
Color: carrot orange
Bought these for my dog and they were an instant hit. The carrot shape is cute, but more importantly they kept my dog entertained for quite a while. The squeaker still works and the toy has held up better than I expected considering how rough my dog can be with toys. I always expect squeaky toys to be destroyed within a day or two, but these have lasted surprisingly well. They're lightweight, easy for my dog to carry around, and have become one of the toys that gets picked out of the basket the most. If your dog enjoys squeaky toys, these are definitely worth a try.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
B
Verified Purchase
Brian M
Massapequa, US
★★★★★ 5
Good one.
Color: carrot orange
Our Lab loved it. Nice and sturdy apart from the leaves, which were short lived. Overall a good toy for a big boy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
L
Verified Purchase
Lisa C.
Natrona Heights, US
★★★★★ 4
Fun for retrieving and chewing.
Color: carrot orange
My lab loves this carrot, and uses it to retrieve and is not easily destroyed. However, he was able to pull off the leaves the first day. It’s still functional, just know they’re gonna come off if you have a chewer. Purchased based of recommendations for indestructible toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
T
Verified Purchase
The fabric is a soft Jean material which is nice. It only shrinks a very small amount. It is NOT meant for tall people. I ordered a medium and I’m 5’10 135 lbs and they are high waters unfortunately
Cuba, US
★★★★★ 5
Great
Color: carrot orange
The greenery came off very quickly after a few chews but the orange rubber material, my pup really enjoys. It feels good on her teeth and she will just chew on it for hours.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026

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