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    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley
    • LS/LT High-Mount Complete Accessory Drive Kit- Black Finish Includes R4 A/C Compressor, Alternator, Power Steering Pump, Belt & Pulleys Holley

    Holley High-Mount Complete Accessory Drive Kit, R4 A/C Compressor & 130A Alternator | 20-136BK

    Vendor: Holley
    Part Number: 20-136BK
    Save $275
    Sale Price $2,199.95 Regular Price $2,474.95

    Currently out of stock.

    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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    This complete high-mount accessory drive kit includes the R4 A/C compressor, alternator, power steering pump, belt, and pulleys — everything needed for LS and LT engine swap applications, sourced from OE suppliers, in black finish.

    Specifications:

    • Brand: Holley
    • Category: Belts and Cooling
    • Application: GM LS and GM Gen V LT, L83, L84, L86, L88
    • Engine: GM Gen III/IV (LS) and GM Gen V L83/L84/L86/L87
    • Accessory Drive Style: High-Mount
    • Finish: Black
    • Material: Cast Aluminum
    • A/C Compressor: R4
    • Alternator Amperage: 130
    • Output: 130 Amps
    • Pulley Style: Serpentine
    • Includes: belt, R4 compressor, 130-amp alternator, power steering pump/pulley, and idler/tensioner pulleys
    • Sub Category: Accessory Drive Belt System Components
    • Warranty: Manufacturer's Limited 90 Day Warranty
    • Part Number: 20-136BK

    Requires a separate installation kit (21-1, 21-2, or 21-3) for assembly. LT-series installations require additional parts: 21-5 LT installation kit, 22-100 LS water pump with forward-facing outlet, and 717-15 throttle body angle adapter.

    FAQ

    What engines does this kit fit?

    GM LS engines and GM Gen V LT engines (L83, L84, L86, L88).

    What's the alternator output?

    130 amps.

    Is additional hardware needed for LT engines?

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

    Does the kit include the drive belt?

    Yes, a 6-rib serpentine belt is included.

    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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