Specifications Comparison: 2009 GMC Sierra 3500 vs 2021 GMC Sierra 3500

Gas Tank Size

Trim	Eng.	Drive train	Fuel Tank Size (Gal)	Fuel Tank Size (L)
HD 3500 Crew Cab SLE	6.0L V8	RWD	34.0	128.7
HD 3500 Crew Cab SLE	6.0L V8	4WD	34.0	128.7
HD 3500 Crew Cab SLT	6.0L V8	RWD	34.0	128.7
HD 3500 Crew Cab SLT	6.0L V8	4WD	34.0	128.7
HD 3500 Extended Cab SLE	6.0L V8	RWD	34.0	128.7
HD 3500 Extended Cab SLE	6.0L V8	4WD	34.0	128.7
HD 3500 Extended Cab SLT	6.0L V8	RWD	34.0	128.7
HD 3500 Extended Cab SLT	6.0L V8	4WD	34.0	128.7
HD 3500 Regular Cab SLE	6.0L V8	RWD	34.0	128.7
HD 3500 Regular Cab SLE	6.0L V8	4WD	34.0	128.7

Trim	Eng.	Drive train	Fuel Tank Size (Gal)	Fuel Tank Size (L)
HD Crew Cab	6.6L V8	RWD	36.0	136.3
HD Crew Cab	6.6L V8	RWD	36.0	136.3
HD Crew Cab	6.6L V8	4WD	36.0	136.3
HD Crew Cab	6.6L V8	4WD	36.0	136.3
HD Crew Cab AT4	6.6L V8	4WD	36.0	136.3
HD Crew Cab AT4	6.6L V8	4WD	36.0	136.3
HD Crew Cab Denali	6.6L V8	4WD	36.0	136.3
HD Crew Cab Denali	6.6L V8	4WD	36.0	136.3
HD Crew Cab SLE	6.6L V8	RWD	36.0	136.3
HD Crew Cab SLE	6.6L V8	RWD	36.0	136.3
HD Crew Cab SLE	6.6L V8	4WD	36.0	136.3
HD Crew Cab SLE	6.6L V8	4WD	36.0	136.3
HD Crew Cab SLT	6.6L V8	RWD	36.0	136.3
HD Crew Cab SLT	6.6L V8	RWD	36.0	136.3
HD Crew Cab SLT	6.6L V8	4WD	36.0	136.3
HD Crew Cab SLT	6.6L V8	4WD	36.0	136.3
HD Extended Cab	6.6L V8	RWD	36.0	136.3
HD Extended Cab	6.6L V8	RWD	36.0	136.3
HD Extended Cab	6.6L V8	4WD	36.0	136.3
HD Extended Cab	6.6L V8	4WD	36.0	136.3
HD Extended Cab SLE	6.6L V8	RWD	36.0	136.3
HD Extended Cab SLE	6.6L V8	RWD	36.0	136.3
HD Extended Cab SLE	6.6L V8	4WD	36.0	136.3
HD Extended Cab SLE	6.6L V8	4WD	36.0	136.3
HD Regular Cab	6.6L V8	RWD	36.0	136.3
HD Regular Cab	6.6L V8	RWD	36.0	136.3
HD Regular Cab	6.6L V8	4WD	36.0	136.3
HD Regular Cab	6.6L V8	4WD	36.0	136.3
HD Regular Cab SLE	6.6L V8	RWD	36.0	136.3
HD Regular Cab SLE	6.6L V8	RWD	36.0	136.3
HD Regular Cab SLE	6.6L V8	4WD	36.0	136.3
HD Regular Cab SLE	6.6L V8	4WD	36.0	136.3