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ISBRAM's avatar
ISBRAM
Explorer
Jul 26, 2018

Thoughts on 2005/2006 Cummins ISM 500/ Allison 4000?

My wife and I are seriously considering the purchase of a nice used 2006 Newmar Essex pusher with very low millage. I’m not familiar with the Cummins ISM but living in Colorado I really want a combi...
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Executive45's avatar
Executive45
Explorer III
Jul 29, 2018
I've got close to 100,000 miles on my coach with zero issues. Great engine. Mine was chipped to 525HP but IMO that was a waste of money. Plenty of power including several trips to Denver and Golden....Dennis

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