Holley 20-185 Mid-Mount Complete Accessory System LS Engine Drive Includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner,

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, 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. Patent -

Features and Benefits:

• 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
• Fit All wet sump LS engines except supercharged
• Will also will fit dry sump LS engines converted to wet sump All accessories are included: the water pump, A/C compressor, alternator, P/S pump with reservoir, and the crank damper

Associated Comments:

• The power steering pump included can be used Hydroboost systems. Please refer to the flow specs on part number 198-101

Details:

• A/C Compressor Included: Yes
• A/C Compressor Type: SD7
• Accessory Drive Style: Mid-Mount
• Alternator Amperage: 150
• Alternator Included: Yes
• Application: GM LS
• Belt Included: Yes
• Damper Included: Yes
• Damper Style: Cast Damper
• Engine: GM Gen III/IV (LS)
• Finish: Cast
• Inlet Size: 35.4mm/1.4 Inch
• Material: Cast Aluminum
• Output: 150 Amps
• Power Steering Hardline Included: Yes
• Power Steering Pulley Included: Yes
• Power Steering Pump Included: Yes
• Power Steering Reservoir Included: Yes
• Pulley Style: Serpentine
• Tensioner Included: Yes
• Thermostat Included: Yes
• Warranty: Manufacturer's Limited 90 Day Warranty
• Water Neck Included: Yes
• Water Pump Included: Yes
• Water Pump Pulley Included: Yes

Installation Guide: Download PDF

Installation / Product Video: Watch on YouTube

⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.