1999 Dodge RAM Cummins Information

Dodge began installing Cummins diesel engines into Rams in the 1989 model year. This trend continues as of the 2011 model year. The 1999 Cummins engine had standard and high-output versions.

Configuration

The 1999 Cummins diesel engine was an inline six-cylinder. It had 24 valves and an overhead-valve configuration. It also had a single turbocharger to help boost performance.

Internals

The 1999 Cummins had a 4.02-inch bore, and a 4.72-inch stroke. The standard version had a 17.5-to-1 compression ratio, while the high-output version had a 16.3-to-1 compression ratio. Both engines had a total displacement of 5.9 liters, or 5,883 cubic centimeters.

Output

The standard Cummins 5.9-liter engine, only used on Rams with an automatic transmission, produced 215 horsepower at 2,700 rpm, and 420 foot-pounds of torque at 1,600 rpm. The high-output 5.9-liter Cummins, only used on manual transmission-equipped Rams, produced 235 horsepower at 2,700 rpm, and 460 foot-pounds of torque at 1,400 rpm.

References

• MSN Autos: 1999 Dodge Ram 2500 Engine Specs
• MSN Autos: 1999 Dodge Ram 3500 Engine Specs
• Cummins Diesel Specs: Cummins Timeline