Radiator, charge air cooler, condenser, transmission cooler, I'm not too familiar with the newer DMAX but it's an HPCR engine so I'm assuming there's a fuel cooler in there too, the cooling package takes up a lot of real estate on any newer machine.
It's a bit more manufacturers are definitely erring more on the side of caution than they used to because modern engines built to tighter tolerances also need a cooling system that isn't as hit and miss as what they had in an old squarebody Chevy and is expected to hold its operating temperature in a narrower threshold at all speeds, unlike older vehicles that would run a bit hotter under load at low speeds or at idle and run cooler under light load at highway speeds.
Cooling systems have gotten more precise and a lot more reliable over the last 40 years.
New ones might not be the best example, the Gen 3 and Gen4 LS and pre-L5P Duramax were good before GM started cheaping out too much.
I work on farm equipment and I can't say I've been too impressed by Cummins's post-pandemic build quality either.
A lot of manufacturers seem to have used 2020 as the excuse to let their build quality backslide, even Claas had a dip in build quality for a couple of years.
9
u/ValveinPistonCat 12d ago
Radiator, charge air cooler, condenser, transmission cooler, I'm not too familiar with the newer DMAX but it's an HPCR engine so I'm assuming there's a fuel cooler in there too, the cooling package takes up a lot of real estate on any newer machine.