@pushbroom can certainly tell us all more about it but as I understand it, Paccar purchased Daf, primarily for their engine manufacturing experience when all the brands began offering proprietary engines. Many of the first Paccar engines had problems (as did all manufacturers trying figure out how to deal with emission requirements).
However, PACCAR does have a contractual agreement that forces an owner to use dealer shops until the engine is out of warranty. Cummins, for example, will not touch one of those engines while under warranty.
Paccar didn't even start making engines until a few years ago. PACCAR may not have, DAF which was bought by PACCAR has a long history of making their own engines for their trucks. PACCAR just bought themselves an engine maker, filed off all the previous name plates and stamped their name on it.
Our new beast with Paccar mx 13 (which i found to be a sh&t engine)
Peterbilt Motors Company says the Paccar MX engine is now available on Model 389 trucks. The MX engine is available with a horsepower range of 380hp-485hp and torque outputs up to 1,750 lb-ft with a ...
Peterbilt Motors Company recently celebrated the delivery of the first 2010 EPA-certified Paccar MX engine. A Peterbilt Model 386 equipped with the first production MX engine was delivered to ...
Peterbilt Motors Co. announced that a California-compliant version of the Paccar MX-13 diesel engine is now available in its Model 579, Model 567 and Model 589 trucks. The engine is compliant with ...
Paccar, parent of Kenworth and Peterbilt, showcased the European technology that will be the basis for the proprietary 12.9-liter big block engine it is developing and testing for the North American ...