Cummins ISX or Paccar MX
02-15-2018, (Subject: Cummins ISX or Paccar MX ) 
Post: #1
Cummins ISX or Paccar MX
Found a few 2015 Kenworth T680's with a mix of Cummims ISX 450 and Paccar 450 engines. All are around 450,000 - 500,000 miles. In this year which engine is more reliable and easier to work on?
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Cummins ISX or Paccar MX - Blake - 02-15-2018



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