SKU: 11800885361

Holley Premium Black Mid-Mount LS7 Complete Accessory System - Dry Sump 20-190BK

Sale price$1687.47 Regular price$1874.97
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Holley Premium Black Mid-Mount LS7 Complete Accessory System - Dry Sump 20-190BKOverview: 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 Hooker turbo manifolds.
  • Fits LS7 and LS engines with dry sump and without supercharger.
  • Black Finish

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 LS7
Finish Black
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: 11800885361

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Aaron
Bozeman, US
★★★★★ 5
good shoes
Size: 8, Color: Black/White/Iron Grey
better than what i estimated. it took a day for θem 2 sink in, letting me feel full eφect.
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Reviewed in the United States on May 7, 2026
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personas de 40 aÑos en adelante
Fort Morgan, US
★★★★★ 4
son comodos
Size: 9, Color: Black/White/Iron Grey
muy satisfecha con esta compra,
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Reviewed in the United States on April 29, 2026
T
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Timothy B.
Fort Morgan, US
★★★★★ 5
A great everyday companion.
Overall this is a great watch for the price. Swiss Made and the right size for a larger dial vs. others in the class. The dial color is more gray than black which was a plus for me as I was looking for a gray dial. I switched out the band for a black field band bought on Hamilton’s website. I am very happy with the results!
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Reviewed in the United States on November 14, 2025
J
Verified Purchase
Jonathan Lee
Massapequa, US
★★★★★ 5
The Perfect Everyday Watch
This hands down is the best everyday watch. I have a large wrist so the 42mm works perfectly for me. The all brushed titanium looks great. The subdued look and clear dial just only make it better. I didnt want to believe the Hamilton hype but I have to say that Hamilton makes a great solid watch. If you are looking for the everyday watch that just feels right, is solid, and works, look no further. I am sure the standard version is just as good also. ALSO, the dial is not black black. It is slightly a grayish tone. At first I hated this detail but after looking at it, it just looks so good.
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Reviewed in the United States on October 12, 2020
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Verified Purchase
Lamar.Fandango
Belleville, US
★★★★★ 1
Hamilton titanium is worse than mediocre
Where can I start with how bad this watch is? (1) the movement is a derated movement with a low beat rate. This means the seconds hand visibly clicks almost like a quartz watch. (2) the beautiful dial is rarely seen because there is no anti-reflective coating. Instead, you see overhead lighting when you check your watch. (3) the watch is already oversized, but the excessive lug-to-lug length makes this look like a clown watch. Make sure your wrist is 8" or more for this watch. (4) it's dainty for a field watch. The push-down crown easily pops out, making rain or sweat a real watch killer. It's also gets scratched at the slightest touch. (5) the superluminova on the hands and face is so thin that it is worthless. (6) When I say Seiko and Timex make better automatic watches, I don't mean "better value" or "better for the money." I mean that Seiko and Timex have better movements, better styling, better wearability, better durabity, better visability... all around better. The Hamiltons released with the low-beat H-10 are bringing shame to the one-respected Hamilton brand.
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Reviewed in the United States on July 24, 2023

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