2020 GMC Sierra 3500HD V (GMTT1XX) Double Cab Long Bed specs, Fuel consumption, Dimensions

Start of production 2020; End of production 2023 \| Pick-up Power: from 401 Hp to 445 Hp Length 6514 mm (256.46 in.); Height 2054 mm (80.87 in.); Wheelbase 4127 mm (162.48 in.);

6.6 V8 (401 Hp) SRW Automatic 2020 - 2023
6.6 V8 (401 Hp) DRW Automatic 2020 - 2023
6.6 V8 (401 Hp) 4WD SRW Automatic 2020 - 2023
6.6 V8 (401 Hp) 4WD DRW Automatic 2020 - 2023
6.6 Duramax TD V8 (445 Hp) SRW Automatic 2020 - 2023	Engine displacement: 6.6 l \| 6604 cm³ \| 403 cu. in.
6.6 Duramax TD V8 (445 Hp) DRW Automatic 2020 - 2023	Engine displacement: 6.6 l \| 6604 cm³ \| 403 cu. in.
6.6 Duramax TD V8 (445 Hp) 4WD SRW Automatic 2020 - 2023	Engine displacement: 6.6 l \| 6604 cm³ \| 403 cu. in.
6.6 Duramax TD V8 (445 Hp) 4WD DRW Automatic 2020 - 2023	Engine displacement: 6.6 l \| 6604 cm³ \| 403 cu. in.