SKU: 58949036983

Holley Big Block Chevy Mid-Mount Complete Accessory System - 20-242

Sale price$944.97 Regular price$1049.97
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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23

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Description

Holley Big Block Chevy Mid-Mount Complete Accessory System - 20-242Overview: Holley's Mid Mount accessory drives are now available for your big block Chevrolet engines! The revolutionary system does what no other accessory bracket system has done GETS RID OF THE BRACKETS! The 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,

Overview:

Holley's Mid-Mount accessory drives are now available for your big block Chevrolet engines! The revolutionary system does what no other accessory bracket system has done… GETS RID OF THE BRACKETS! The 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. 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 water pump design incorporates optional side or top heater ports. The top thermostat bypass and heater ports are recessed into the manifold. So if you don't need them, you don't see them! 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, and P/S pump with reservoir. All pulleys and the belt are supplied. Even A/C line adapter, 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.

Features:

  • The Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives.
  • Bracketless accessory mounting with ultra-easy assembly
  • O-ring seal to engine
  • Hidden thermostat bypass and heater hose ports with NPT line adapters included
  • LT1 style premium alternator
  • LT1 style water pump design
  • Compact SD7 A/C compressor with line adapter included
  • Type II power steering pump with baffled reservoir
  • P/S adapter hardline to AN -6 adapter included
  • OE pulley ratios for optimal accessory performance
  • Available in natural and black finishes
  • Billet alternator, tensioner, and compressor pulley covers

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 Chevrolet Big Block
Belt Included Yes
Brand Holley
Choose Your Part Accessory Drive Kits
Damper Included No
Damper Style Factory
Emission Code 3
Engine Chevy Big Block V8
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 No
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: 58949036983

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A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
People blocker
Color: Shimmer
Perfect for privacy door to keep people away at my desk
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
Q
Quality Engineer
Louisville, US
★★★★★ 4
Great Quality
Color: Pine
The fabric panels are sturdy and scratch-resistant, and the pine frame gives them a clean, natural look. Easy to move and reposition as needed, making them great for bedrooms, studios, or shared spaces. They don’t feel flimsy and hold their shape once set up.
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Reviewed in the United States on December 17, 2025
R
Verified Purchase
Rob
Chelsea, US
★★★★★ 3
Not quite but close.
Color: Pine
The panel is hollow. If you’re buying it thinking it’s going to dampen sound, it really won’t. I bought some foam to put in the hollow part and that works okay, but it shouldn’t be required.
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Reviewed in the United States on May 12, 2026
B
Benji and I . . .
Belleville, US
★★★★★ 5
Fantastic performance with respect to privacy and room temperature.
Color: Frost
While this standing room divider is tall and wide enough to provide a nice privacy barrier, it also allows light to filter through while maintaining that privacy. Assembly was easy with simple to follow directions and the only place I struggled was in pulling the fabric down to connect it. Similar to putting on a compression sock- it takes time and stretching/pulling. I don't think I ever got it to line up completely at the bottom and velcro together like it should, but it is a fantastic benefit. I have a home office on the ground floor, so when the curtains are open, it's not entirely unexpected to have a passerby look in as they go past. This provides basically a wall for them to look at. And I love it. Aside from the privacy, an unexpected benefit is wind control. On hotter days, my dog likes the window open, but hot to him may be cold to me, so I open it for him and allow this instant wall to shelter me. It is surprisingly effective at keeping the cold breeze from reaching me. I could not be more impressed with this divider. It stands on its own and provides privacy and temperature regulation through it's sturdy frame and thick (light-friendly) fabric.
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Reviewed in the United States on November 14, 2025
C
Clement Beauregret
Port Orchard, US
★★★★★ 5
Hiding from Coworkers Has Never Looked So Classy
Color: Frost
Let me tell you something: this divider isn’t just a piece of furniture...it’s a sanctuary, a confessional booth for the emotionally exhausted, and a glorious wall between me and other people’s nonsense. I slid behind this beauty like a barfly dodging an ex, and baby, I felt safe. It's lightweight, but sturdy enough to block out both sunlight and bad vibes. The fabric’s got a fancy little texture, which is great if you're hiding and still wanna feel aesthetic. It moves easy, it stands tall, and it gives me just enough space to eat my sad desk lunch in peace while pretending I’m in a better timeline. Final Word: Perfect for offices, bedrooms, dressing rooms, or wherever you need to spiritually disassociate. Whether you’re blocking out sunlight or Barbara’s unsolicited MLM pitch, this thing’s got your back. Literally. Five stars. Would (and likely will) emotionally withdraw again.
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Reviewed in the United States on October 28, 2025

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