21-4BK Installation Kit Low LS Acc. Drive Brackets, use with LONG belt alignment & bracket 20-155 (GM Trucks & '10-UP Camaro)
Product Discontinued
HOLLEYPART NUMBER: 510-21-4BK

21-4BK Installation Kit Low LS Acc. Drive Brackets, use with LONG belt alignment & bracket 20-155 (GM Trucks & '10-UP Camaro)

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This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

    Installation Kit Low LS Acc. Drive Brackets
  • Use with LONG belt alignment & bracket 20-155 (alignment common on Trucks & '10-UP Camaro)

    Holley 21-4BK Features:

  • 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
  • Accessory Drive Style: Low-Mount
  • Belt Alignment: Long
  • Brand: Holley
  • Discount Percentage: 26-50%
  • Engine: GM Gen III/IV (LS)
  • Finish: Black
  • Material: Aluminum
Part TypeAccessory Drive Belt Kit
BrandHOLLEY
Package Height3.1
Package Width7.3
Package Length16.1
Weight2.05 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number21-4BK
Package Qty1
Package TypeEA
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