Part Type: A/C Accumulator. Type: Accumulator. 2002 GMC Sierra 2500 HD Engine: 6.6L V8;. 2004 GMC Sierra 2500 HD Engine: 6.6L V8; P-nut fitting Clocked at 2:00;. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.
