Duramax® 6.6L Turbo-Diesel V8 engine

Whether your job requires hauling, towing or simply roaming around rugged terrain, you need the Duramax® 6.6L Turbo-Diesel V8 engine with more power than ever: 765 lb-ft of torque and 397 hp. Plus, it tows up to 17,800 lbs.1 Harnessing all this power is a big job, so it requires the durable Allison® 1000 6-speed automatic transmission. Includes exhaust brake, heavy-duty dual 730 cold-cranking amp battery and engine block heater. This engine is not available with pickup box delete.

1 Requires fifth-wheel hitch and Regular Cab model with available Duramax 6.6L Turbo-Diesel engine. Maximum trailer weight ratings are calculated assuming a base vehicle, plus driver. See dealer for details.