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Holley accessory drive installation kits provide proper spacing for Holley A/C, P/S & Alt accessory drive brackets, so belts ride at the perfect distance on your particular engine.
Holley Installation Kit for Low LS Accessory Drive Bracket w/ Long Alignment 21-4
Specifications:
| Accessory Drive Style | Low-Mount |
| Belt Alignment | Long |
| Brand | Holley |
| Category | Accessory Drives |
| Emission Code | 5 |
| Engine | GM Gen III/IV (LS) |
| Finish | Cast |
| Material | Aluminum |
| Product Type | Accessory Bracket |
| Warning | California Proposition 65 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Accessory Drive Style | Low-Mount |
| Belt Alignment | Long |
| Brand | Holley |
| Category | Accessory Drives |
| Emission Code | 5 |
| Engine | GM Gen III/IV (LS) |
| Finish | Cast |
| Material | Aluminum |
| Product Type | Accessory Bracket |
| Warning | California Proposition 65 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Description_INV | LO ACC BKT INSTALL KIT, LS LONG-NATURAL |
| Description_ASC | Low LS Accessory Drive Fits Middle and Long accessory spacing only (does not fit Short accessory spacing Corvette/CTS-V/G8). Customers w/ short spacing can swap out water pump and crank pulley to convert to middle or long spacing. Long Spacing requires Installation kit 21-4. |
| Description_DES | Installation Kit for Low LS Accessory Drive Bracket w/ Long Alignment |
| Description_EXT | Installation Kit, Low LS Acc. Drive Brackets, use with LONG belt alignment & bracket 20-155 (alignment common on Trucks & '10-UP Camaro) |
| Description_MKT | Installation Kit, Low LS Acc. Drive Brackets 20-155 with LONG belt alignment (alignment common on Trucks & '10-UP Camaro) |
| Description_MKT | Holley accessory drive installation kits provide proper spacing for Holley A/C, P/S & Alt accessory drive brackets, so belts ride at the perfect distance on your particular engine. |
| Description_FAB | Light weight cast aluminum |
| Description_FAB | Fits GM LS motors with Holley accessory drives |
| Description_FAB | Provides proper belt alignment |
| Description_FAB | Works with multiple applications |
| Description_INV | LO ACC BKT INSTALL KIT, LS LONG-NATURAL |
| Description_ASC | Low LS Accessory Drive Fits Middle and Long accessory spacing only (does not fit Short accessory spacing Corvette/CTS-V/G8). Customers w/ short spacing can swap out water pump and crank pulley to convert to middle or long spacing. Long Spacing requires Installation kit 21-4. |
| Description_DES | Installation Kit for Low LS Accessory Drive Bracket w/ Long Alignment |
| Description_EXT | Installation Kit, Low LS Acc. Drive Brackets, use with LONG belt alignment & bracket 20-155 (alignment common on Trucks & '10-UP Camaro) |
| Description_MKT | Installation Kit, Low LS Acc. Drive Brackets 20-155 with LONG belt alignment (alignment common on Trucks & '10-UP Camaro) |
| Description_MKT | Holley accessory drive installation kits provide proper spacing for Holley A/C, P/S & Alt accessory drive brackets, so belts ride at the perfect distance on your particular engine. |
| Description_FAB | Light weight cast aluminum |
| Description_FAB | Fits GM LS motors with Holley accessory drives |
| Description_FAB | Provides proper belt alignment |
| Description_FAB | Works with multiple applications |