Showing the 2006 Hummer H1 Alpha 4-Passenger Open Top Alpha Wondering which trim is right for you? Our 2006 Hummer H1 Alpha trim comparison will help you decide.

Showing the 2003 Hummer H1 4-Passenger Open Top Hard Doors Wondering which trim is right for you? Our 2003 Hummer H1 trim comparison will help you decide.

In 2006, The HUMMER H1 was offered as a heavily modified Alpha model. The HUMMER H1 Alpha model received up to 520 pound-feet of torque from a 6.6-liter Duramax turbo diesel engine. The higher ...