Ram 59 Cummins 12V Specs
Ram 59 Cummins 12V engine specs: 359 ci (5.9L), 6-cylinder, 4.0157" bore x 4.7244" stroke, 17:1 compression.
Dimensions
| Displacement | 359 ci / 5.9 L |
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| Bore | 4.0157" |
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| Stroke | 4.7244" |
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| Cylinders | 6 |
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| Compression ratio | 17:1 |
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| Bore/stroke ratio | 0.85 |
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Construction
| Block material | cast iron |
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| Head material | cast iron |
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| Valvetrain | OHV |
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| Fuel type | diesel |
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| Advertised HP | 160 hp |
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What these numbers mean
| Bore/stroke character | 0.850 — undersquare — stroke exceeds bore, which favours low-end torque |
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| Mean piston speed at 6,000 RPM | 4,724 ft/min — above the 4,500 ft/min mark where most production bottom ends are considered at their limit |
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| Displacement per cylinder | 59.8 ci |
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| Static compression | 17:1 — high enough that pump premium or better is normally required |
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Vehicles (6)
- Ram 2500
- Ram 3500
- Dodge Ram 2500
- Dodge Ram 3500
- Dodge Ram 250
- Dodge Ram 350
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