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Old 01-27-2024, 12:40 AM   #22 (permalink)
j-c-c
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Quote:
Originally Posted by JSH View Post
When we buy an engine from Cummins for one of our vehicles it is purchased as a turnkey package. That package includes everything from the intake including the aftertreatment, fuel pump, and ECM mapping. There are years of testing and development that we pay them many, many millions of dollars to do for us. Cummins certifies the engine as a complete package and we can make no modifications to it.

The fuel pump comes installed on the engine. Bosch is a subcontractor to Cummins


EDIT: Again, 14,000 lb GVW is a key defining line. The rules are different above and below that rating. You are describing how things work under 14,000 lbs.
That 14,000lb benchmark is interesting,
I am aware of nowhere else in the truck world that the 14,000lb threshold comes up. The normal ones I am aware of are 80,000, 55,000, 33,000, 26,000, 10,000 and 5,000.
Seems rather arbitrary.
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