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Specifications Comparison: 2021 GMC Sierra 3500 vs 2020 GMC Sierra 3500

Researched By The AutoPadre Staff

Gas Tank Size

2021 GMC Sierra 3500

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
HD Crew Cab6.6L V8RWD36.0136.3
HD Crew Cab6.6L V8RWD36.0136.3
HD Crew Cab6.6L V84WD36.0136.3
HD Crew Cab6.6L V84WD36.0136.3
HD Crew Cab AT46.6L V84WD36.0136.3
HD Crew Cab AT46.6L V84WD36.0136.3
HD Crew Cab Denali6.6L V84WD36.0136.3
HD Crew Cab Denali6.6L V84WD36.0136.3
HD Crew Cab SLE6.6L V8RWD36.0136.3
HD Crew Cab SLE6.6L V8RWD36.0136.3
HD Crew Cab SLE6.6L V84WD36.0136.3
HD Crew Cab SLE6.6L V84WD36.0136.3
HD Crew Cab SLT6.6L V8RWD36.0136.3
HD Crew Cab SLT6.6L V8RWD36.0136.3
HD Crew Cab SLT6.6L V84WD36.0136.3
HD Crew Cab SLT6.6L V84WD36.0136.3
HD Extended Cab6.6L V8RWD36.0136.3
HD Extended Cab6.6L V8RWD36.0136.3
HD Extended Cab6.6L V84WD36.0136.3
HD Extended Cab6.6L V84WD36.0136.3
HD Extended Cab SLE6.6L V8RWD36.0136.3
HD Extended Cab SLE6.6L V8RWD36.0136.3
HD Extended Cab SLE6.6L V84WD36.0136.3
HD Extended Cab SLE6.6L V84WD36.0136.3
HD Regular Cab6.6L V8RWD36.0136.3
HD Regular Cab6.6L V8RWD36.0136.3
HD Regular Cab6.6L V84WD36.0136.3
HD Regular Cab6.6L V84WD36.0136.3
HD Regular Cab SLE6.6L V8RWD36.0136.3
HD Regular Cab SLE6.6L V8RWD36.0136.3
HD Regular Cab SLE6.6L V84WD36.0136.3
HD Regular Cab SLE6.6L V84WD36.0136.3

2020 GMC Sierra 3500

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
HD 3500 Crew Cab 159" AT46.6L V84WD36.0136.3
HD 3500 Crew Cab 172" AT46.6L V84WD36.0136.3
HD 3500 Crew Cab 159"6.6L V8RWD36.0136.3
HD 3500 Crew Cab 172"6.6L V8RWD36.0136.3
HD 3500 Double Cab 162"6.6L V8RWD36.0136.3
HD 3500 Reg Cab 142"6.6L V8RWD36.0136.3
HD 3500 Crew Cab 159"6.6L V84WD36.0136.3
HD 3500 Crew Cab 172"6.6L V84WD36.0136.3
HD 3500 Double Cab 162"6.6L V84WD36.0136.3
HD 3500 Reg Cab 142"6.6L V84WD36.0136.3
HD 3500 Crew Cab 159" Denali6.6L V84WD36.0136.3
HD 3500 Crew Cab 172" Denali6.6L V84WD36.0136.3
HD 3500 Crew Cab 159" SLE6.6L V8RWD36.0136.3
HD 3500 Crew Cab 172" SLE6.6L V8RWD36.0136.3
HD 3500 Double Cab 162" SLE6.6L V8RWD36.0136.3
HD 3500 Reg Cab 142" SLE6.6L V8RWD36.0136.3
HD 3500 Crew Cab 159" SLE6.6L V84WD36.0136.3
HD 3500 Crew Cab 172" SLE6.6L V84WD36.0136.3
HD 3500 Double Cab 162" SLE6.6L V84WD36.0136.3
HD 3500 Reg Cab 142" SLE6.6L V84WD36.0136.3
HD 3500 Crew Cab 159" SLT6.6L V8RWD36.0136.3
HD 3500 Crew Cab 172" SLT6.6L V8RWD36.0136.3
HD 3500 Crew Cab 159" SLT6.6L V84WD36.0136.3
HD 3500 Crew Cab 172" SLT6.6L V84WD36.0136.3
HD 3500 Crew Cab6.6L V8RWD36.0136.3
HD 3500 Crew Cab6.6L V84WD36.0136.3
HD 3500 Crew Cab AT46.6L V84WD36.0136.3
HD 3500 Crew Cab Denali6.6L V84WD36.0136.3
HD 3500 Crew Cab SLE6.6L V8RWD36.0136.3
HD 3500 Crew Cab SLE6.6L V84WD36.0136.3
HD 3500 Crew Cab SLT6.6L V8RWD36.0136.3
HD 3500 Crew Cab SLT6.6L V84WD36.0136.3
HD 3500 Extended Cab6.6L V8RWD36.0136.3
HD 3500 Extended Cab6.6L V84WD36.0136.3
HD 3500 Extended Cab SLE6.6L V8RWD36.0136.3
HD 3500 Extended Cab SLE6.6L V84WD36.0136.3
HD 3500 Regular Cab6.6L V8RWD36.0136.3
HD 3500 Regular Cab6.6L V84WD36.0136.3
HD 3500 Regular Cab SLE6.6L V8RWD36.0136.3
HD 3500 Regular Cab SLE6.6L V84WD36.0136.3

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