HOL-20-180BK Holley Premium Black Mid-Mount Complete Accessory System
LS Engine Drive includes SD7 A/C Compressor, Alternator, P/S Pump, Tensioner, SFI certified damper w/hard anodized billet crank pulley, Belt, & Pulleys
Features
- Billet alternator, and compressor pulley covers
- SFI certified damper w/hard anodized billet crank pulley
- Works with all common aftermarket and factory Throttle bodies and intakes.
- Works with VVT applications
- Steam tube input port
- Works with Hooker turbo manifolds.
- Fit ALL wet sump LS engines except supercharged. Also will fit dry sump LS engines converted to wet sump.
- Black Finish
- Billet tensioner cover
- No adapters/spacers required!
- OE pulley ratios for optimal accessory performance
- Shortened top outlet nipple for more radiator hose turns and routing room
- Type II power steering pump with baffled reservoir
- Compact SD7 A/C compressor
- LT1 style water pump cartridge design
- LT1 style premium 150 amp alternator
- Bottom outlet heater hose options for swap application clearance
- Bracketless accessory mounting with ultra-easy assembly
- P/S adapter hardline to AN -6 adapter included
Product Video – YouTube
Product Video – YouTube
The Premium Mid-Mount system comes with dress up pulley covers and an SFI certified damper. Partnered with this damper is a billet 6061-T6 aluminum hard anodized crank pulley. This system is ready for the racetrack if you want to play or just be ready for anything on the street.
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.
Holley’s Premium 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.
Patent – www.holley.com/patents/
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 an SFI certified damper w/hard anodized billet crank pulley. 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.
Attributes:
| Choose Your Part | Accessory Drive Kits |
| Damper Included | Yes |
| Damper Style | SFI Certified |
| Emission Code | 5 |
| Product Type | Accessory Drive Kits |
| Power Steering Reservoir Included | Yes |
| Power Steering Pump Included | Yes |
| part type | Accessory Drive Belt Kit |
| Output | 150 Amps |
| Material | Cast Aluminum |
| Power Steering Hardline Included | Yes |
| Power Steering Pulley Included | Yes |
| Inlet Size | 35.4mm/1.4″ |
| Finish | Black |
| Warranty | Manufacturer’s Limited 90 Day Warranty |
| Category | Belts and Cooling |
| Water Neck Included | Yes |
| Water Pump Included | Yes |
| Water Pump Pulley Included | Yes |
| Belt Included | Yes |
| Brand | Holley |
| Thermostat Included | Yes |
| A/C Compressor Included | Yes |
| Engine | GM Gen III/IV (LS) |
| A/C Compressor Type | SD7 |
| Accessory Drive Style | Mid-Mount |
| Alternator Amperage | 150 |
| Alternator Included | Yes |
| Application | GM LS |
| Tensioner Included | Yes |
| Sub Category | Accessory Drive Belt System Components |
| Pulley Style | Serpentine |






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