Which DEF, EGR exhaust system has proven the most depndable?

If you have any questions regarding warranties between Cummins or Paccar engines, or the Peterbilt chassis, or even the components between a Peterbilt and a Kenworth, let me know.

Kenworths warranty is only 12 months / 100,000 miles "standard". If you want to extend it beyond that, it's an extended warranty. Peterbilt offers the same. On the engine, that's offered through Paccar.

However, neither of them "come with" a 5 year, 500,000 mile warranty. Just keep that in mind.

 

My 2016 Volvo carries plan 2 extended coverage of engine and emissions system to 5yr/500k.
Trans is 5/750k

Check out the average life before in frame of a D13 vs the ISX .... it's almost double.

The ISX often fails between 600-800k... You're lucky to hit 1M....It's not the Cummins quality of the past.