Red Top N14 Jake 

I'm considering buying this one ;)

I own that truck. Red top is slang for N14C+.

No it ain’t. The red tops and the C+ are two different motors

@@danzerbehling8696 I’m not trying to be an asshole, but somebody told you wrong. When you hear truckers talking about their “Red Top” or “Red-Head”, they’re talking about the final iteration of the 855 family of Cummins. The cap on the head is red. That’s where the name comes from. Earlier N14s were entirely black.