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  • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
  • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
  • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
  • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
  • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
  • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • 20-136_cover.jpg
    • 20-136.jpg
    • 20-136_dimensions.jpg
    • fitmentmatrix.jpg
    • highaccdrv1899.jpg
    • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    Sale!

    Holley LS/LT High-Mount Complete Accessory Drive Kit, R4 A/C Compressor, Cast Finish | 20-136

    Vendor: Holley
    Part Number: 20-136
    Save $250
    $1,999.95 $2,249.95

    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 Holley high-mount complete accessory drive kit equips an LS/LT swap with an R4 A/C compressor, alternator, power steering pump, tensioner, pulleys, and belt in a natural cast finish, all sourced from the same OE suppliers used on production vehicles.

    Specifications:

    • A/C Compressor Type: R4
    • Accessory Drive Style: High-Mount
    • Alternator Output: 130 Amps
    • Application: GM Gen III/IV (LS) and Gen V LT (L83/L84/L86/L87)
    • Belt, Tensioner, Power Steering Pump & Pulley: Included
    • Finish: Cast
    • Material: Cast Aluminum
    • Part Number: 20-136

    This bracket requires a separate installation kit (21-1, 21-2, or 21-3) matched to the engine's water pump and balancer offset. LT-series installs additionally need the 21-5 LT installation kit, a 22-100 LS water pump with forward-facing outlet, and a 717-15 throttle body angle adapter.

    FAQ

    What compressor does the 20-136 kit use?

    It includes an R4 A/C compressor along with a 130-amp alternator, power steering pump, tensioner, pulleys, and belt.

    Is a separate bracket kit needed?

    Yes, a matching installation kit (21-1, 21-2, or 21-3) is required for assembly.

    Can it be used on an LT engine?

    Yes, with the 21-5 LT installation kit, a 22-100 LS water pump with forward-facing outlet, and a 717-15 throttle body angle adapter.

    What finish is this kit?

    It comes in a natural cast aluminum finish.

    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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