Holley Big Block Chevy Mid-Mount Complete Accessory System - 20-242BK
SKU: 16735308147

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

Sale price$989.97 Regular price$1099.97
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Holley Big Block Chevy Mid-Mount Complete Accessory System - 20-242BKOverview: 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 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 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: 16735308147

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BLACK GLOVE UNBOXING
Omaha, US
★★★★★ 5
A Solid Mount with Minor Imperfections
This MagSafe mount is a fantastic addition to my 2024 4Runner, offering a nearly factory-fit look. Installation was straightforward, though it required a bit of nerve. I was worried the clips attaching to the AC vent would snap, but with firm, steady pressure, they clicked securely into place without any issue. The result is a very stable platform for my phone. Functionally, it performs exactly as hoped. It supports fast charging when paired with a capable cigarette port adapter, and the magnetic connection is surprisingly strong. It holds my heavy S25 Ultra securely during daily commutes, and the inclusion of two metal rings for non-MagSafe cases is a thoughtful touch. I haven't tested its limits on a bumpy off-road trail, but for normal driving, it’s perfect. My only two critiques are minor but worth noting. With the phone in place, it completely blocks the hazard light button. A slight inconvenience. Additionally, I wish the mount's color matched the silver trim around the infotainment system for a more seamless look. Despite these small flaws, it's an excellent, clean mounting solution that I would recommend to other 4Runner owners.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2025
Z
Verified Purchase
Zach
Fort Morgan, US
★★★★★ 5
Five Stars — Finally Got My Charger Back!
Color: Black, Color: Black
I bought this 3-in-1 wireless charging station as a gift for my girlfriend so she would finally stop stealing mine — and let me tell you, it worked. She loves it, her devices love it, and I love not having to play “Where’s my charger?” every night like it’s some kind of relationship scavenger hunt. Pros: • MagSafe is strong — Her phone snaps on like it’s reconnecting with its soulmate. • Charges iPhone, Apple Watch, and AirPods all at once — AKA: no more tangled octopus of cables on the nightstand. • Looks clean and modern — Her side of the room instantly leveled up in aesthetics. • Fast charging — She swears her phone charges “faster than her attitude in the morning,” her words not mine. Cons: • Now she judges my setup — Apparently I’m the one with the “messy” charger now. • Might make you buy a second one — Because the moment you try to use hers, she suddenly remembers boundaries. Overall, great gift, works perfectly, and saved my sanity. Would 100% buy again — but I don’t have to, because she finally stopped borrowing mine!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
L
Verified Purchase
Lorraine Halderman
Omaha, US
★★★★★ 5
Fantastic charger!!
Color: Black
Bought two of these for my house due to a recommendation from my daughter. Immediately fell in love with them! They are exactly as described, very well made and look great! They’re not too big and don’t take up too much room. The magnet is VERY strong! I was worried it wouldn’t work with my phone case on, but it did! I need to mention though that I have an iPhone case specifically designed for the MagSafe technology, I do not know if it works with regular cases. Highly recommended!
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Reviewed in the United States on April 14, 2026
C
Verified Purchase
crazydaisyxo
Belleville, US
★★★★★ 5
Perfect Multi Charger
Color: Pink, Color: Pink
Love this charger. It charges my phone, watch, and earbuds all at once with no hassle, and everything connects easily. Love this charger. It charges my phone, watch, and earbuds all at once with no hassle, and everything connects easily. It charges super fast. It feels sturdy and well-made, not cheap or flimsy. If you’re looking for a simple, reliable all-in-one charging solution, this is definitely worth it. Would absolutely recommend.
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Reviewed in the United States on January 26, 2026
J
Verified Purchase
Justin
Charlottesville, US
★★★★★ 4
Works well
Color: Black
I've been using this charger for a couple months now and it works well. It's definitely slower than a corded charger, but it's a convenient place to leave my phone while I work, without having to worry about it overcharging. It's nice to be able to check my phone while it's on the stand. This is my main charger, but if I need my phone charged in a hurry I'll use the cord. I've only used the phone charging option, so I can't speak to how well it works for watches or earbuds. I'm sure it's fine though.
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Reviewed in the United States on April 27, 2026

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