Part Type: Engine Water Pump Pulley. 2005 Pontiac G6 Engine: 3.5LL V6;. 2006 Pontiac G6 Engine: 3.5LL V6;. Application Notes: Engine: 3.5LL V6;. Oversized Pulley: No. Manufacturer: Dorman. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in theCompatibility Table.