Holley Mid-Mount Complete Accessory Drive System 20-205BK
SKU: 34193903728

Holley Mid-Mount Complete Accessory Drive System 20-205BK

Sale price$1102.47 Regular price$1224.97
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Description

Holley Mid-Mount Complete Accessory Drive System 20-205BKComplete GM Gen V LT Accessory Drive System w Alt, P S, A C, Water Pump, Belts, and Crankshaft Damper 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

Complete GM Gen V LT Accessory Drive System w/ Alt, P/S, A/C, Water Pump, Belts, and Crankshaft Damper

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 the C7 Corvette. The compact and reliable SD7 A/C compressor and Type II P/S pump with a baffled reservoir.

NOTES: Fits: GM Gen-V LT Engines (wet-sump), LV3/LV1 (V6 version of Gen-V LT engine), dry-sump LT engines converted to wet-sump (except LT2 and any supercharged). Optional A/C pulley cover (97-185) and Alternator pulley cover (97-187) are available separately.

Features:

  • Bracketless accessory mounting with ultra-easy assembly
  • Bottom outlet heater hose options for swap application clearance
  • LT1 style premium alternator
  • LT1 style water pump design
  • Compact SD7 A/C compressor
  • Type II power steering pump with baffled reservoir
  • P/S, A/C adapter hardline to AN -6 adapter included
  • Shortened top outlet nipple for more radiator hose turns and routing room
  • OE pulley ratios for optimal accessory performance
  • No adapters/spacers are required
  • Works with all common aftermarket and factory throttle bodies and intakes
  • Works with Hooker turbo manifolds
  • All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and the crank damper
  • LT Mid-Mount drives fit ALL wet-sump LT V6 & V8 engines (except LT2 and any supercharged). Also, will fit dry sump LT engines converted to wet-sump (except LT2 and any supercharged)

Specs:

A/C Compressor Included Yes
A/C Compressor Type SD7
Accessory Drive Style Mid-Mount
Alternator Amperage 150
Alternator Included Yes
Application GM Gen V LT
Belt Color Black
Belt Groove Quantity 8
Belt Included Yes
Belt Type Serpentine
Brand Holley
Choose Your Part Accessory Drive Kits
Damper Included Yes
Damper Style Cast Damper
Emission Code 5
Engine GM Gen V LT1
Finish Black
Grade Type Performance
Housing Material Aluminum
Inlet Size 35.4mm/1.4"
Material Cast Aluminum
Oil System Type Wet Sump
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 Color Black
Pulley Style Serpentine
Sale Category Engine
Tensioner Included Yes
Thermostat Included Yes
Universal Or Specific Fit Specific
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: 34193903728

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Coffman, H
Los Angeles, US
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
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Amazon Customer
Port Orchard, US
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
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Reviewed in the United States on April 14, 2026
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Samuel Roberts
Birmingham, US
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026
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Clara
Houston, US
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious. To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
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Mo
Lake Worth, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026

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