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Specifications Comparison: 2020 GMC Sierra 2500 vs 2021 GMC Sierra 2500

Researched By The AutoPadre Staff

Gas Tank Size

2020 GMC Sierra 2500

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
HD 2500 Crew Cab 159" AT46.6L V84WD36.0136.3
HD 2500 Crew Cab 172" AT46.6L V84WD36.0136.3
HD 2500 Crew Cab 159"6.6L V8RWD36.0136.3
HD 2500 Crew Cab 172"6.6L V8RWD36.0136.3
HD 2500 Double Cab 149"6.6L V8RWD36.0136.3
HD 2500 Double Cab 162"6.6L V8RWD36.0136.3
HD 2500 Reg Cab 142"6.6L V8RWD36.0136.3
HD 2500 Crew Cab 159"6.6L V84WD36.0136.3
HD 2500 Crew Cab 172"6.6L V84WD36.0136.3
HD 2500 Double Cab 149"6.6L V84WD36.0136.3
HD 2500 Double Cab 162"6.6L V84WD36.0136.3
HD 2500 Reg Cab 142"6.6L V84WD36.0136.3
HD 2500 Crew Cab 159" Denali6.6L V84WD36.0136.3
HD 2500 Crew Cab 172" Denali6.6L V84WD36.0136.3
HD 2500 Crew Cab 159" SLE6.6L V8RWD36.0136.3
HD 2500 Crew Cab 172" SLE6.6L V8RWD36.0136.3
HD 2500 Double Cab 149" SLE6.6L V8RWD36.0136.3
HD 2500 Double Cab 162" SLE6.6L V8RWD36.0136.3
HD 2500 Reg Cab 142" SLE6.6L V8RWD36.0136.3
HD 2500 Crew Cab 159" SLE6.6L V84WD36.0136.3
HD 2500 Crew Cab 172" SLE6.6L V84WD36.0136.3
HD 2500 Double Cab 149" SLE6.6L V84WD36.0136.3
HD 2500 Double Cab 162" SLE6.6L V84WD36.0136.3
HD 2500 Reg Cab 142" SLE6.6L V84WD36.0136.3
HD 2500 Crew Cab 159" SLT6.6L V8RWD36.0136.3
HD 2500 Crew Cab 172" SLT6.6L V8RWD36.0136.3
HD 2500 Double Cab 149" SLT6.6L V8RWD36.0136.3
HD 2500 Double Cab 162" SLT6.6L V8RWD36.0136.3
HD 2500 Crew Cab 159" SLT6.6L V84WD36.0136.3
HD 2500 Crew Cab 172" SLT6.6L V84WD36.0136.3
HD 2500 Double Cab 149" SLT6.6L V84WD36.0136.3
HD 2500 Double Cab 162" SLT6.6L V84WD36.0136.3
HD 2500 Crew Cab6.6L V8RWD36.0136.3
HD 2500 Crew Cab6.6L V84WD36.0136.3
HD 2500 Crew Cab AT46.6L V84WD36.0136.3
HD 2500 Crew Cab Denali6.6L V84WD36.0136.3
HD 2500 Crew Cab SLE6.6L V8RWD36.0136.3
HD 2500 Crew Cab SLE6.6L V84WD36.0136.3
HD 2500 Crew Cab SLT6.6L V8RWD36.0136.3
HD 2500 Crew Cab SLT6.6L V84WD36.0136.3
HD 2500 Extended Cab6.6L V8RWD36.0136.3
HD 2500 Extended Cab6.6L V84WD36.0136.3
HD 2500 Extended Cab SLE6.6L V8RWD36.0136.3
HD 2500 Extended Cab SLE6.6L V84WD36.0136.3
HD 2500 Extended Cab SLT6.6L V8RWD36.0136.3
HD 2500 Extended Cab SLT6.6L V84WD36.0136.3
HD 2500 Regular Cab6.6L V8RWD36.0136.3
HD 2500 Regular Cab6.6L V84WD36.0136.3
HD 2500 Regular Cab SLE6.6L V8RWD36.0136.3
HD 2500 Regular Cab SLE6.6L V84WD36.0136.3

2021 GMC Sierra 2500

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 Extended Cab SLT6.6L V8RWD36.0136.3
HD Extended Cab SLT6.6L V8RWD36.0136.3
HD Extended Cab SLT6.6L V84WD36.0136.3
HD Extended Cab SLT6.6L 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

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