2006 Alpha Hummer H1 Engine View
Road Test: 2006 Alpha Hummer H1
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The Duramax turbodiesel brings newfound performance to the Alpha-series H1 Hummer. Tight quarters and a shoehorn fit made it a challenge to position the larger-capacity coolers needed to run the 6.6-liter turbodiesel V-8 engine and bigger Allison 1000 five-speed. View Related Article
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