GMC TopKick's C4500 and C5500 medium duty truck meets the diverse needs of commercial customers with a large selection of wheelbases, Regular or Crew Cab, and gasoline or diesel engines. Allison 6-speed transmissions are standard for all models.
Engine Availability.
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Vortec 8.1L V8 with 325 horsepower and 450 lb–ft of torque.
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Duramax 6.6L V8 Turbo Diesel with two versions: 300 horsepower and 520 lb.-ft. of torque or 330 horsepower and 620 lb–ft of torque.
New for 2009
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Revised air seats available.
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21,500-lb. GVWR options for C5500 4WD.
For more information, please see the "More Details" PDF in the “About this Vehicle” section above.