SKU: 88364490686

Holley Mid Mount GM LS Complete Accessory Drive System (HO20-185)

Sale price$2715.75 Regular price$3017.50
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Description

Holley Mid Mount GM LS Complete Accessory Drive System (HO20-185)HO20 185 NATURAL MID MOUNT LS ACCESSORY Includes SD7 A C Compressor, Alternator, P S Pump, Tensioner, Belt, Crank Damper & Pulleys Part Number: HO20 185 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, where the accessories bolt directly to the water pump for a clean, integrated form. The design offers superb engine visibility to show

HO20-185 - NATURAL MID MOUNT LS ACCESSORY

Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, Belt, Crank Damper & Pulleys

Part Number: HO20-185

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, 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.
Brack etless 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
Fit ALL wet sump LS engines except supercharged. Also will fit dry sump LS engines converted to wet sump
All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and the crank damper

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: 88364490686

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Jerry
Carnegie, US
★★★★★ 5
A perfect white work shirt.
Fit Type: Regular Fit, Color: White, Size: Medium
Thick, durable, iron exquisitely and the fit is spot on. Perfect white work shirt. I have a grey shirt too, the quality is the same.
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Reviewed in the United States on March 4, 2026
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Blusher
Dallas, US
★★★★★ 3
Right fit
I love this shirt it was nice and bright when I got it after a few wash it started to fade out a bit was a perfect fit for a medium built person 5’7 I still would recommend this product they are really nice and thick
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Reviewed in the United States on September 14, 2025
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Linda Mokkosian
Battle Creek, US
★★★★★ 5
Excellent value and has saved me from the sun!
Fit Type: Regular Fit, Color: White, Size: Large
I ordered this large mans shirt because it was 100% cotton and long sleeve. I am a woman and use it to protect myself from the sun walking my dog, very stiff at first, but comes out with several washes. I love the shirt!
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Reviewed in the United States on June 9, 2026
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Wilf
Lexington, US
★★★★★ 4
NICE Shirt that SHRINKS!!
Fit Type: Regular Fit, Color: Blue, Size: X-Large
Loved this shirt right out of the package. Put a little steam pressing on it and it was perfect. Has a thicker softer feel than most casual dress shirts. Ordered XL with the "regular" fit and it could be worn tucked or out without it looking overly blousy. SADLY, after a first wash on cold and tumble dry low, and pulled it out early and it shrunk by almost a full size!!! The sleeves, length of shirt and overall fittage shrunk so that now it fits like a snug large. I've never had a shirt shrink like this, hence, the one star off. I would have given it 2 stars off, but the original quality of the shirt is nice, just beware of the shrinkage factor. Don't put it in the dryer at all, only air dry it. I'm tempted to reorder another but just then never put it in the dryer.
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Reviewed in the United States on May 23, 2026
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Andrew B
Los Angeles, US
★★★★★ 5
Nice shirt, could be more "slim fit" in LG size...
Fit Type: Slim Fit, Color: White, Size: X-Large
This is a very nice shirt, good quality, reasonable cost. I am 6'-3", 190 lbs. ,33" waist, 44 chest, a slim (not so young anymore) athletic build:) The Medium size was a good chest & waist fit for a slim fit look, but the arms were too short. I had to go with a Large size for the sleeve length. With the Large size, the chest is good, but the waist is a too loose for me to be a "slim fit". I am keeping the shirt anyway, it's very comfortable with soft & thick material.
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Reviewed in the United States on June 6, 2023

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