i work for a caterpillar dealer, and i agree with gardnerteam.
cat had a good reliable engine line ( before eletronics ) but the biggest down fall i could see is price! if the d-max was a 4-5k option, the cat would be a 6-8k option! easily! cat does make some good engines but i dont know what engine they would put in a pickup truck? alot of engines in mid size cat machines are mitsubishi and perkins (cat owns perkins). a 3126 is a decent size for a small to medium duty 2 ton truck, but way to heavy for a 1 ton. side note ***caterpillar designed the power stroke fuel system. some years ago ford paid cat to design a fuel system for them, they did, and ford put it on their trucks and called it a powerstroke, some years later when the patent wore out - cat brought that exact same fuel system ( cat calls it a heui system) on their engines. its the same system it uses high pressure engine oil to make the higher injection pressures - truily a unique system.**** the next possible engine is a re-vamped version of the old (disposable - parent bore block) 3208 turbo. but i shure ass he11 hope they keep the allison behind it beause i love that tranny! --- auctually i love the d-max ally combo
. but i might consider buying a cat - if gm had a straight front axle - and if they kept the ally - and if they keep the 100k 5 year warranty.