Duramax^® 6.6L V8 Turbo-Diesel engine

Whether your job requires towing or simply roaming around rugged terrain, you need the Duramax^® 6.6L Turbo-Diesel V8 engine with more power than ever: 685 lb-ft of torque and 335 hp. Plus, it tows up to 17,800 lbs.¹ Harnessing all this power is a big job, so Duramax requires the durable Allison^® 1000 6-speed automatic transmission. Includes exhaust brake, heavy-duty dual 730 cold-cranking amp battery and engine block heater. Also requires pickup box delete.

¹ Maximum trailer weight ratings are calculated assuming a properly equipped base vehicle plus driver. See dealer for details.