Engine
Model | Advertised
hp | Peak
Torque | | ISM 500* | 500 | 1550 @ 1300 | | ISM 500* | 500 | 1450 @ 1300 | | ISM 475* | 475 | 1550 @ 1300 | | ISM 450* | 450 | 1550 @ 1300 | | ISM 450* | 450 | 1450 @ 1200 | | ISM 410 | 410 | 1550 @ 1200 | | ISM 400* | 400 | 1450 @ 1200 | | ISM 370 | 370 | 1450 @ 1200 | | ISM 370 | 370 | 1350 @ 1200 | | ISM 350 | 350 | 1350 @ 1200 | | ISM 330** | 330 | 1040 @ 1200 | | ISM 330 | 330 | 1350 @ 1200 | | ISM 330 | 330 | 1250 @ 1200 | | ISM 310 | 310 | 1150 @ 1200 | | ISM 280** | 280 | 900 @ 1200 | | ISM 280 | 280 | 1150 @ 1200 | | | | ISM SmartTorque Ratings | | ISM 350 ST | 350 | 1450/1350 @ 1200 | | ISM 330 ST | 330 | 1350/1250 @ 1200 | | | | ISM Vocational Ratings | | ISM 425V | 425 | 1550 @ 1200 | | ISM 385V | 385 | 1450 @ 1200 | | ISM 385V | 385 | 1350 @ 1200 | | ISM 350V | 350 | 1450 @ 1200 | | ISM 350V | 350 | 1350 @ 1200 | | ISM 320V | 320 | 1150 @ 1200 | | ISM 285V | 285 | 1150 @ 1200 |
| | All ratings are at 2100 rpm governed speed | | | All ISM ratings may not be available in October 2002 | | * | Restricted to RV, fire truck and motorcoach | | ** | Restricted to special urban transit |
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