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Information on the Cummins Engine
Thursday, July 16, 2009
InstructionsDodge RelationshipStep 1:  Cummins, which has had a long relationship with Dodge after World War II, secured a long-term contract in 1989 to supply Dodge with the 5.9-liter diesel engine that provides a 17:1 compression ratio. The engine is an iron block with a steel crankshaft and aluminum intake manifold. It was designed to achieve 300,000 miles before an overhaul is required.
Over-EngineeredStep 1: Dodge quickly realized that Cummins was a popular selling point among its truck buyers and began over-engineering its trucks by equipping them with Cummins diesels that were capable of providing pulling power as much as 4,000 pounds more than the closest rival equipped with a diesel engine. The philosophy allowed Dodge to market its trucks as having the most torque, but also ensuring longer engine life for a diesel generally not required for heavy-duty work in a light-duty pickup.
B-Series EnginesStep 1: Cummins most popular diesel engines are the 5.9-liter B-Series that power pre-2007 Dodge 2500 and 3500 Ram trucks and school buses. Post-2007 2500 and 3500 Dodge pickups are equipped with the 6.7-liter B-Series engines.
C-SeriesStep 1:  The 8.3-liter C-Series straight-6 engine was introduced in 1998 for buses, motor homes, and fire and garbage trucks. An electronic diesel version began production in 1996 for municipal buses. By 2003, a turbocharged version was introduced to increase performance but minimize emissions.
L-SeriesStep 1:  The larger L-Series straight-6 diesel engines displaced 8.9 liters and began production in 1998 for buses, motor homes, fire and garbage trucks, hybrid buses and trucks used for drayage purposes at ports. A compressed natural gas version, the L Gas Plus model, generates 320 horsepower. Municipal buses employed the 8.9-liter diesels with ratings up to 330 horsepower. The L-Series has seen extensive service in Europe and Asia.
M-SeriesStep 1: A 10.8-liter model, the M-Series, is a 6-cylinder version introduced in 1994 with electronic controls added two years later for fuel efficiency. These engines were designed for cross-country buses, yachts, large motor coaches, fire trucks and construction equipment that include wheel-loaders and excavators.
Other VersionsStep 1:  Cummins also produces the N- and X-Series diesels ranging from 12.2 liters to 14.9 liters to power British Rail trains, including the diesel-powered Sprinters and Coradia units. The 19-liter K-Series diesels power the multiple unit passenger and freight Adelante, Meridian/Pioneer, Desiro, Voyager and Super Voyager rail trains.
Photo/Video CreditCummins Inc., Chrysler L.L.C.
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