Product Summary

Crankshaft Pulley Included, Water Pump Included

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    Key Specs

    Pulley StyleSerpentine
    Crankshaft Pulley IncludedYes
    Crankshaft Pulley MaterialBillet Aluminum
    Crankshaft Pulley FinishBlack Painted
    Crankshaft Pulley Grooves6-groove, serpentine
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    Holley 20-185P Details

    Holley's 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. Among the many swap friendly features are bottom heater outlets for clearance in tight applications. 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 Mid-Mount drive completes Holley's trilogy of accessory solutions giving a third option compared to the High and Low-Mount previously released. All three accessory solutions are for LS engines.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, P/S pump with reservoir, and the crank damper. All pulleys and the belt are supplied. Even 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.
    • Bracketless accessory mounting with ultra-easy assembly
    • Bottom outlet heater hose options for swap application clearance
    • LT1 style premium 150 amp alternator
    • LT1 style water pump cartidge design
    • Compact SD7 A/C compressor
    • Type II power steering pump with baffled reservoir
    • P/S adapter hardline to AN -6 adapter included
    • Steam tube input port
    • Shortened top outlet nipple for more radiator hose turns and routing room
    • OE pulley ratios for optimal accessory performance
    • No adapters/spacers required!
    • Works with all common aftermarket and factory throttle bodies and intakes.
    • Works with VVT applications
    • Works with Hooker turbo manifolds.
    • Fits ALL LS engines except with dry sump and/or supercharger.
    • Polished Finish
    • All accessories are included; the water pump, A/C compressor, Alternator, P/S pump with reservoir, and the crank damper.

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    Holley 20-185P Specifications

    KEY SPECS
    MFG. Part #20-185P
    BrandHolley
    Pulley StyleSerpentine
    Crankshaft Pulley IncludedYes
    Crankshaft Pulley MaterialBillet Aluminum
    Crankshaft Pulley FinishBlack Painted
    Crankshaft Pulley Grooves6-groove, serpentine
    Water Pump IncludedYes
    Water Pump MaterialCast Aluminum
    Water Pump FinishPolished
    Water Pump Pulley IncludedYes
    Water Pump Pulley MaterialSteel
    Water Pump Pulley GroovesNon-ribbed
    Power Steering Pump IncludedYes
    Power Steering Pump Bracket FinishPolished
    Power Steering Pump Brackets IncludedYes
    Power Steering Pump Bracket MaterialAluminum
    Power Steering Pump FinishPolished
    Power Steering Pump Reservoir IncludedYes
    Power Steering Pump Reservoir MaterialPlastic
    Power Steering Pump Reservoir StyleIntegral
    Power Steering Pump StyleType 2
    Power Steering Pulley AttachmentPress Fit
    Power Steering Pulley FinishBlack Painted
    Power Steering Pulley Grooves6-groove, serpentine
    Power Steering Pulley IncludedYes
    Power Steering Pulley MaterialSteel
    Alternator IncludedYes
    Alternator MaterialCast Aluminum
    Alternator FinishPolished
    Alternator Amperage150 amp
    Alternator Pulley FinishBlack Painted
    Alternator Pulley Grooves6-groove, Serpentine
    Alternator Pulley IncludedYes
    Alternator Pulley MaterialSteel
    Alternator Bracket FinishPolished
    Alternator Bracket MaterialCast Aluminum
    Alternator Brackets IncludedYes
    A/C Compressor FinishPolished
    A/C Compressor IncludedYes
    A/C Compressor TypeSanden SD-7
    A/C Pulley FinishPolished
    A/C Pulley Grooves6-groove, Serpentine
    A/C Pulley IncludedYes
    A/C Pulley MaterialSteel
    A/C Bracket FinishPolished
    A/C Bracket IncludedYes
    A/C Bracket MaterialCast Aluminum
    Idler Brackets IncludedYes
    Idler IncludedNo
    Tensioner IncludedYes
    Tensioner StyleSpring-loaded
    Tensioner Cover IncludedNo
    Hardware IncludedYes
    GENERAL
    Sold in QuantityKit
    GTIN Code090127029497

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    Fitment

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