21-4440 Compressor for 134a, with GM Pad Mount and Serpentine Clutch. 

This compressor replaces the GM HT6 compressor on 1996-99 GM Vortek V8 engines. It features a GM Pad mount to connect to original A/C Hose Assemblies or use with Old Air Products fitting #91-0007 to connect to after market hoses and componants. The 7H15 Series compressors are the popular and well suited for larger street vehicles with larger interiors or dual A/C systems. Designed to bolt into the factory compressor bracket assembly and comes pre-oiled for easy installation.