
Standard single or optional dual fuel tanks
are available, providing upfitters with greater
flexibility for body installation.

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With non-slip tread pattern and well-spaced
steps for secure entry and exit.

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Including optional chromed grilles. Stationary grilles are also available for specialty applications like snowplow mounting.

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Argent gray is standard. Chromed is optional. Also available in heavy-duty channel design; construction bumper; and front-frame extension for C6500/ C7500/ C8500.

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This Big Block V8 is specifically designed for heavy hauling and commercial use. The only gas engine available on 6, 7, and 8 class medium duty conventional trucks with a GVWR range of 19,501 to 37,600 lbs, and can be converted aftermarket to run on petroleum or natural gas.
| Trim Level | Horsepower | Torque | |||
|---|---|---|---|---|---|
| Regular/Crew 2WD | Regular/Crew 4WD | Motor Home 2WD | Commercial Cutaway 4WD | ||
| S | S | S | S | 325 | 450 ft-lb |

6-Speed Manual Transmission
This workhorse is quiet, smooth and durable The Duramax Diesel 6600 meets Clean Fuel Fleet (CFF) standards.
| Trim Level | Horsepower | Torque | |||
|---|---|---|---|---|---|
| Regular/Crew 2WD | Regular/Crew 4WD | Motor Home 2WD | Commercial Cutaway 4WD | ||
| A | A | A | A | 300 | 520 ft-lb |
| A | A | A | A | 330 | 620 ft-lb |