Diesel Engine Sales

Powering various systems, pumps, compressors and other mechanical equipment, Carolina Engine engines deliver high operating efficiencies maintenance and long service.

Clean, efficient, dependable and durable, Carolina Engine engines are found in nearly every type of vehicle and equipment on earth -- from emergency vehicles to 18-wheelers, berry pickers to 360-ton mining haul trucks. Water pumps, compressors, critical process drivesYou'll also find us everywhere there's water, with a full line of recreational and commercial marine diesels. And every Carolina Engine engine is backed by Genuine Parts and Service, providing total customer support every hour and every minute of every day.

Advantages of a Diesel Engine

The diesel engine is much more efficient and preferable as compared with gasoline engine due to the following reasons:

  • Modern diesel engines have overcome disadvantages of earlier models of higher noise and maintenance costs. They are now quiet and require less maintenance as compared with gas engines of similar size.
  • They are more rugged and reliable.
  • There is no sparking as the fuel auto-ignites. The absence of spark plugs or spark wires lowers maintenance costs.
  • Fuel cost per KiloWatt produced is thirty to fifty percent lower than that of gas engines.
  • An 1800 rpm water cooled diesel unit operates for 12,000 to 30,000 hours before any major maintenance is necessary. An 1800 rpm water cooled gas unit usually operates for 6000-10,000 hours before it needs servicing.
  • Gas units burn hotter than diesel units, and hence they have a significantly shorter life compared with diesel units.

New EPA emission standards on diesel engine emission called "Tier II" and "Tier III", NEW Cleaner greener diesels...

Tier 1-3 Standards. The first federal standards (Tier 1) for new nonroad (or off-road) diesel engines were adopted in 1994 for engines over 37 kW (50 hp), to be phased-in from 1996 to 2000. In 1996, a Statement of Principles (SOP) pertaining to nonroad diesel engines was signed between EPA, California ARB and engine makers (including Caterpillar, Cummins, Deere, Detroit Diesel, Deutz, Isuzu, Komatsu, Kubota, Mitsubishi, Navistar, New Holland, Wis-Con, and Yanmar). On August 27, 1998, the EPA signed the final rule reflecting the provisions of the SOP. The 1998 regulation introduced Tier 1 standards for equipment under 37 kW (50 hp) and increasingly more stringent Tier 2 and Tier 3 standards for all equipment with phase-in schedules from 2000 to 2008. The Tier 1-3 standards are met through advanced engine design, with no or only limited use of exhaust gas aftertreatment (oxidation catalysts). Tier 3 standards for NOx+HC are similar in stringency to the 2004 standards for highway engines, however Tier 3 standards for PM were never adopted.

TiTier 4 Standards. On May 11, 2004, the EPA signed the final rule introducing Tier 4 emission standards, which are to be phased-in over the period of 2008-2015 [69 FR 38957-39273, 29 Jun 2004]. The Tier 4 standards require that emissions of PM and NOx be further reduced by about 90%. Such emission reductions can be achieved through the use of control technologies—including advanced exhaust gas aftertreatment—similar to those required by the 2007-2010 standards for highway engines.

NNonroad Diesel Fuel. At the Tier 1-3 stage, the sulfur content in nonroad diesel fuels was not limited by environmental regulations. The oil industry specification was 0.5% (wt., max), with the average in-use sulfur level of about 0.3% = 3,000 ppm. To enable sulfur-sensitive control technologies in Tier 4 engines—such as catalytic particulate filters and NOx adsorbers—the EPA mandated reductions in sulfur content in nonroad diesel fuels, as follows:

  • 500 ppm effective June 2007 for nonroad, locomotive and marine (NRLM) diesel fuels
  • 15 ppm (ultra-low sulfur diesel) effective June 2010 for nonroad fuel, and June 2012 for locomotive and marine fuels

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