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Installation Kit for Low LS Accessory Drive Bracket w/ Long Alighnment- Polished

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

PART# 21-4P

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


Accessory Drive StyleLow Mount
Belt AlignmentLong
Emission Code5
EngineGM LS
Product TypeAccessory Bracket
WarrantyLimited 90 Day
Part Number21-4P



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

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.

Warranty Information

Limited 90 Day: See Details
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