2021 GMC 1500 Duramax 3.0 Turbo Diesel Matalic Blue Trailer tow package 0utside trailering mirrors X31 OFF-ROAD PACKAGE Seat covers were put on from day one Truck is in great shape and runs great 16-18 mpg towing 28-32 highway double cab standard box transferable warranty about 1 1/2 years on the engine and power train