Originally Posted by BarnYardCamp
I wonder how difficult it would be to swap out the mercedes for something else when/if it dies.
Biggest factor is the bellhousing pattern. Next, finding something suitable with that bellhousing pattern. Last but not least, making it work in a vehicle that no doubt is going to want to 'talk' to the engine's sensors, and will complain vehemently when it cannot. The easiest route in such a swap is to swap the original engine's sensors to the replacement engine, however, in cases of throttle position sensors and such, there is no guarantee that the original engine's sensor for a given function can be used on a different engine.
If you haven't purchased it yet, honestly, I would pass. At this stage in the game, anything being surplused with a diesel built after 2002 or so is going to be expensive and troublesome when repair is needed, especially the MB engines. Though not as plentiful as they used to be, there are still plenty of units pre-dating Obama's Eco-Nazi reign that effectively crippled otherwise perfectly good engines.
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As an over-the-road trucker, I can honestly say the least troublesome emission-equipped diesel rigs I've run were Freightliners with the Detroit DD-series engines. The DD15 is the stuff of legends. I can say that since the introduction of the DD5 and DD8 engines around 2016, in about 8-10 years, these engines might be worth looking for in the C2 chassis buses. Both have been available in Thomas-Built cheese wagons since last year
In four years, I had a Freightliner require dealer intervention twice. Navistar, many, many times. Volvo? Don't even get me started. If Volvo gave me a brand-new truck, I would drive it straight to the Freightliner dealer and trade it in (if they would take it LOL). If available, I'll take Detroit power over anything else, including Cummins.
And yes, I am aware that Detroit is or was owned by Daimler, as well as being briefly soiled by Volvo's ownership. The proof is in the pudding, however. The MB engine is nearly impossible to repair when needed, while the Detroit DD15 has been powering commercial semis for YEARS, and in my experience has proven quite reliable. Hopefully the DD5 and DD8 prove to be more than one-half-to-one-third the engine its big brother is, but with 90,000 units on the road before it was even offered in skoolies, I'd say these will be a good pick for the years to come.