SKU: 20909300139

Holley Premium Polished Mid-Mount LS7 Complete Accessory System-Dry Sump 20-190P

Sale price$1912.47 Regular price$2124.97
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Description

Holley Premium Polished Mid-Mount LS7 Complete Accessory System-Dry Sump 20-190PLS7 Engine Drive includes SD7 A C Compressor, Alternator, P S Pump, Tensioner, SFI certified damper w hard anodized billet crank pulley, Belt, & Pulleys Fits Dry Sump Engines. 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, where the accessories bolt directly to the water pump for a clean, integrated form. The design offers

LS7 Engine Drive includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI certified damper w/hard anodized billet crank pulley, Belt, & Pulleys - Fits Dry Sump Engines.

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, 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.

NOTES: "The power steering pump included can be used Hydroboost systems. Please refer to the flow specs on part number 198-101 This accessory drive is for LS7 & LS3 Dry Sump engine applications

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.
  • Polished Finish

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
Clearance Category Engine
Damper Included Yes
Damper Style SFI Certified
Discount Percentage 26-50%
Emission Code 5
Engine GM LS7
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
Sale Category Engine
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: 20909300139

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Camille Gaskins
Los Angeles, US
★★★★★ 5
Diamonds Are Always A Girl”s Best Friend!
Color: White Gold, Size: 0.25 cttw
Super cute, cost-effective and no irritation to my ear lobes! No one can tell the difference! Will be purchasing manufactured diamond earrings from now on!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
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Leigh J.
Draper, US
★★★★★ 5
Beautiful and nice!
Color: White Gold, Size: 0.25 cttw
I wear these every day! Very nice!
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Reviewed in the United States on May 31, 2026
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Dave B.
Cuba, US
★★★★★ 5
Great purchase! Highly recommend!
Color: Yellow Gold, Size: 1 cttw
Love these earrings! They have beautiful brilliance and sparkle AND I feel the setting is relatively substantial. They have a screw on back and the back is not small and flimsy like some earring backs I have seen. I purchased the 1 carat pair and love them. Highly recommend!
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Reviewed in the United States on March 15, 2026
A
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Anonymous
Alexandria, US
★★★★★ 5
Beautiful and timeless!
Color: White Gold, Size: 0.5 cttw, Color: White Gold, Size: 0.5 cttw
The earrings are beautiful. I was hesitant to go with lab grown over natural but the quality of the earrings have genuinely changed my outlook on pab grown diamonds. These were made with 14kt screw on backs and have given me peace of mind. These were purchased to be worn in the 2nd ear piercings. They look stunning next to my natural halo diamond earrings.
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Reviewed in the United States on May 1, 2026
M
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Maggie
Belleville, US
★★★★★ 4
Great quality
Color: Yellow Gold, Size: 0.5 cttw
Beautiful earrings, but I would definitely get the largest 1ct option if an adult plans to wear them. The smaller sizes would be perfect special gift for a child.
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Reviewed in the United States on July 22, 2025

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