For extra power, the 2010 HUMMER H3T was also available with an Alpha trim model featuring a 5.3-liter Vortec V-8 engine mated with a four-speed automatic transmission. Producing 300 horsepower, the ...
For extra power, the 2010 HUMMER H3T was also available with an Alpha trim model featuring a 5.3-liter Vortec V-8 engine mated with a four-speed automatic transmission. Producing 300 horsepower, the ...
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