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    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    • Premium Black Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI Certified Damper W/hard Anodized Billet Crank Pulley, Belt, & Pulleys Holley
    Sale!

    Holley Premium Black Mid-Mount Complete Accessory System, SD7 A/C, SFI Damper, LS Engines | 20-180BK

    Vendor: Holley
    Part Number: 20-180BK
    Save $438
    Sale Price $3,499.95 Regular Price $3,937.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    Holley's Premium Black Mid-Mount Complete Accessory System is designed for LS engine swaps and completes Holley's trilogy of LS accessory drive solutions alongside the High- and Low-Mount options. The bracketless design bolts accessories directly to the water pump, and bottom heater outlets provide extra clearance for swap applications.

    Specifications:

    • A/C Compressor: SD7, included
    • Alternator: 150-amp, LT1-style, included
    • Power Steering: Type II pump with baffled reservoir, included
    • Damper: SFI-certified with hard-anodized billet 6061-T6 crank pulley
    • Water Pump: LT1-style cartridge design, included
    • Finish: Black
    • Application: LS Engines
    • Part Number: 20-180BK

    Fits all wet-sump LS engines except supercharged applications; also fits dry-sump LS engines converted to wet sump. Works with common aftermarket and factory throttle bodies, intakes, VVT applications, and Hooker turbo manifolds. The power steering pump included can be used with Hydroboost systems; refer to the flow specs on part number 198-101.

    FAQ

    What's included in this system?

    The water pump, A/C compressor, alternator, power steering pump with reservoir, and an SFI-certified damper with hard-anodized billet crank pulley, plus all pulleys, belt, and adapters.

    What LS engines does this fit?

    All wet-sump LS engines except supercharged versions, and dry-sump LS engines converted to wet sump.

    Does it include a damper?

    Yes, an SFI-certified damper with a hard-anodized billet 6061-T6 aluminum crank pulley.

    Can the power steering pump run a Hydroboost system?

    Yes; refer to the flow specs on part number 198-101.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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