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  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
  • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • 20-220_0219242.jpg
    • 20-180_031868.jpg
    • 20-180_06173391868.jpg
    • 20-180_10173391868.jpg
    • 20-180_front173411868.jpg
    • 20-220_0119242.jpg
    • 20-220_0319242.jpg
    • lead19242.jpg
    • lt4dim19242.jpg
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    • Premium Mid-Mount Complete Accessory System GM Gen V LT4 Wet Sump Engines Complete GM Gen V LT4 Accessory Drive System W/ Alt, P/S, A/C, Water Pump, Belts, and Hardware Holley
    Sale!

    Holley Premium Mid-Mount Accessory Drive System, GM Gen V LT4 Wet Sump | 20-220

    Vendor: Holley
    Part Number: 20-220
    Save $425
    $3,399.95 $3,824.95

    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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    Product DetailsFAQReviewsRelated Products

    This complete accessory drive system for LT4 wet sump engines pulls all accessories up and in tight while adding a hydraulic power steering solution with a splined dual-bearing design that eliminates belt-load stress on the power steering pump's internal bearings.

    Specifications:

    • Brand: Holley
    • Category: Belts and Cooling
    • Application: GM Gen V LT4
    • Engine: GM Gen V LT4
    • Accessory Drive Style: Mid-Mount
    • Oil System Type: Wet Sump
    • Finish: Cast
    • Material: Cast Aluminum
    • A/C Compressor: SD7
    • Alternator Amperage: 150
    • Output: 150 Amps
    • Pulley Style: Serpentine
    • Includes: water pump, alternator, A/C compressor, power steering pump, belts, and hardware
    • Sub Category: Accessory Drive Belt System Components
    • Warranty: Manufacturer's Limited 90 Day Warranty
    • Part Number: 20-220

    Includes a throttle body angle-correcting adapter for easier intake tube routing on swap applications, plus A/C line and power steering hard line adapters.

    FAQ

    What engines does this system fit?

    GM Gen V LT4 wet sump engines.

    Does it add power steering without extra belt load?

    Yes, a splined dual-bearing system eliminates belt stress on the power steering pump's internal bearings.

    What's included?

    Water pump, alternator, A/C compressor, power steering pump, belts, and hardware.

    Is there a dry sump version?

    Yes, LT4/LT5 dry-sump versions are available separately.

    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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