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The Cummins ISC is a straight-6 diesel engine, design by a Cummins production line, which is 8.3 liters in displacement. This went into production in March 1998 by Cummins. The engine was built off its predecessor, the Cummins C 8.3-liter engine originally introduced in the late 1980s as the 6C8.3 (this was co-designed with the Case Corporation along with the smaller 6B5.9). The first electronic version, known as the C8.3E and designed for the urban bus market exclusively, went into production in late 1996.

By late 2003, Cummins announced that they will revise the engine to sport a High-Pressure Common-Rail (HPCR) system to help with emissions and also a variable geometry turbocharger system to help with the performance on this engine.

The Cummins ISC also has a sister engine which is designed off the existing ISC 8.3 liter block which runs on compressed natural gas. Cummins reintroduced this engine as the C PLUS engine which has a maximum power rating of 280 hp (209 kW). A few thousand units of this engine engines are now roaming in the world operating on a variety of applications.

Contents 1 Applications 2 Popular power ratings 3 Rivals 4 External links

• Bus
• Motor Home
• Fire Truck

• Urban bus
  • 660 lbf•ft (976 Nm) @ 1300 rpm, 260 hp (186 kW) electronically governed at 2200 rpm
  • 705 lbf•ft (956 Nm) @ 1300 rpm, 250 hp (186 kW) electronically governed at 2200 rpm
  • 900 lbf•ft (1220 Nm) @ 1300 rpm, 280 hp (209 kW) electronically governed at 2200 rpm
  • 1050 lbf•ft (1424 Nm) @ 1300 rpm, 310 hp (231 kW) electronically governed at 2100 rpm

• Firetruck/motorhome/truck
  • 1050 lbf•ft (1424 Nm) @ 1300 rpm, 310 hp (231 kW) electronically governed at 2100 rpm
  • 1150 lbf•ft (1559 Nm) @ 1300 rpm, 330 hp (246 kW) electronically governed at 2100 rpm
  • 1200 lbf•ft (1627 Nm) @ 1300 rpm, 400 hp (298 kW) electronically governed at 2200 rpm

• Detroit Diesel
• Caterpillar Inc.
• Deere & Company

• Cummins website