dont know what your looking for exactly,but isuzu makes a great small diesel. i have always been more partial to duetz diesels myself,have three of them,cant seem to kill em yet!
the fleet; ferds ,02'f350,01'f450, 11' f350 the generals ,82'2500, 82'2500 4x4, 82' blazer, 86' blazer ,93'3500, 96'3500, and a 99' 3500hd with 12 valve cummins power. the goats, 90'd250, 91'd350 4x4, all are diesel powered. a list of bigger stuff, as well as gasser's, got lucky, wife comes from a family that collects junk iron too!
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Who makes the most advanced small diesel engine? I'm looking for something that burns extremly clean and effecient.
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The new generation engines with E controls I don't think come out until next year in the under 50 hp class. My impression is that you are still getting Tier II engines this year.
I've got a Lincoln Vantage 400 welder wtih a 33 hp perkins in it.
it seems to be a very nice engine bought last year--- but it is TIER II and all mechanical. The mechanical ones are likely to work a lot longer and give a lot less trouble than the E machines, but alas they will have more emissions.
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Doesn't Yanmar or Kubota make some small engines with electronic controlls?
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don't know, but they all will be as the EPA TIER III slides down to engines under 50 HP. If it adds $3k to thte price of the engine like it has for larger engines, I doubtful it there will be much demand for these engines.
I will start by saying that I don't know anything about them. I don't know if you guys have ever heard of Branson tractors before... but there is a dealer here in my area that I've delivered freight to, and taking a look at some of their equipment, I was surprised to see that many, if not all of their even smallest power units carried the "Powered by Cummins" badge. I for one was surprised to see that Cummins had a part in this market, and Cummins does a real good job of marketing itself as the technology leader, and a company of firsts. I'm just saying I would be surprised if they aren't producing something that might meet your needs.
I just took a look at the Branson Website.. digging through there it looks like their smallest HP Cummins is a 65hp with the following specs:
4 Cylinder, 4 cycle Water Cooled Diesel
Naturally Aspirated 65@2600 rpm (57 PTO)
3.74 x 4.52 bore/stroke
3260 cc 3.3L
0.083gal/hp.hr Fuel Consumption
Dry, Element Air filter
I posted it anyway, but maybe not what you're looking for, and heaven only knows what the availability of an engine like this might be.