Spec Sizes

2021 Chevrolet Silverado 3500HD Dimensions, Sizes & Specifications

Based on 37 trims — exact values when identical, ranges when trims differ. Generation: Fourth generation (GMTT1XX).

  • Length235.5 in – 266.0 in
  • Width81.8 in – 96.6 in
  • Height80.0 in – 80.9 in
  • Wheelbase141.6 in – 172.0 in
  • Ground clearance10.4 in – 11.2 in
  • Curb weight6,231 lb – 7,352 lb

Proportional size visualization from measured dimensions — not exact body geometry.

Side view
  • Length235.5 in – 266.0 in
  • Height80.0 in – 80.9 in
  • Wheelbase141.6 in – 172.0 in
  • Ground clearance10.4 in – 11.2 in
  • Curb weight6,231 lb – 7,352 lb
Front / width
  • Width81.8 in – 96.6 in

Proportional exterior silhouette from catalog length, width and height. The explorer below is a systems map — different purpose, not a second silhouette.

Explore your 2021 Chevrolet Silverado 3500HD

Interactive systems diagram for this model year — measure, check fitment, and open the matching SpecSizes tools. Schematic only; not photorealistic body styling.

  • Dimensions
  • Wheels
  • Tires
  • Wipers
  • Interior
Generic vehicle systems diagramSchematic side and front outline marking measurement and maintenance areas. Not exact body geometry.Side schematicFront

Available for this vehicle

  • Dimensions
  • Wheels
  • Tires
  • Wipers
  • Interior

Select a system below or on the diagram. This schematic marks measurement areas — it is not body-accurate styling.

Will it fit in my garage?Compare this vehicleFind cars this sizeWill these wheels fit?

Catalog summaries

Exterior: 235.5 in – 266.0 in · 81.8 in – 96.6 in · 80.0 in – 80.9 in. Full dimensions

Wheels: bolt pattern 8x180, bore 124.1 mm. Wheel sizes

Tires: LT275/65SR20.0E BSW AT, LT235/80SR17.0E BSW highway, LT275/70SR18.0E BSW AT, 235/80R17…. Tire sizes

What do you want to check?

Exterior dimensions

Length235.5 in – 266.0 in
Width81.8 in – 96.6 in
Height80.0 in – 80.9 in
Wheelbase141.6 in – 172.0 in
Ground clearance10.4 in – 11.2 in

Interior dimensions

Front headroom43.0 in
Rear headroom40.0 in
Front legroom44.5 in
Rear legroom35.2 in – 43.4 in
Front shoulder room66.0 in
Rear shoulder room65.0 in
Front hip room61.0 in
Rear hip room60.0 in

Weight & capacities

Curb weight6,231 lb – 7,352 lb
GVWR10,750 lb – 14,000 lb
Fuel tank36.0 gal
Max towing capacity14,000 lb – 16,000 lb

Engine

  • 1885 1914
Torque464 lb-ft

Torque shown in lb-ft as stored in the catalog.

Wheels, tires & maintenance sizes

Tire sizes Full tire size page → · Wheel fitment →

  • LT275/65SR20.0E BSW AT
  • LT235/80SR17.0E BSW highway
  • LT275/70SR18.0E BSW AT
  • 235/80R17
  • 275/65R20
  • 275/70R18

Wiper sizes Full wiper size page →

  • Driver22"
  • Passenger22"
Trim-by-trim dimensions (37 trims)
TrimLengthWidthHeightWheelbaseClearanceCurb wt
High Country 4x4 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26947
High Country 4x4 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47352
High Country 4x4 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.17059
LT 4x2 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26647
LT 4x2 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47068
LT 4x2 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.16779
LT 4x2 Double Cab 8 ft. box 162.5 in. WB DRW256.596.680.2162.510.46977
LT 4x2 Double Cab 8 ft. box 162.5 in. WB SRW256.581.880.9162.511.26689
LT 4x2 Regular Cab 8 ft. box 141.6 in. WB DRW235.596.680.2141.610.56520
LT 4x2 Regular Cab 8 ft. box 141.6 in. WB SRW235.581.880.9141.611.26231
LT 4x4 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26947
LT 4x4 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47352
LT 4x4 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.17059
LT 4x4 Double Cab 8 ft. box 162.5 in. WB DRW256.596.680.2162.510.47259
LT 4x4 Double Cab 8 ft. box 162.5 in. WB SRW256.581.880.9162.511.26971
LT 4x4 Regular Cab 8 ft. box 141.6 in. WB DRW235.596.680.2141.610.56817
LT 4x4 Regular Cab 8 ft. box 141.6 in. WB SRW235.581.880.9141.611.26528
LTZ 4x2 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26647
LTZ 4x2 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47068
LTZ 4x2 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.16779
LTZ 4x4 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26947
LTZ 4x4 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47352
LTZ 4x4 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.17059
Work Truck 4x2 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26647
Work Truck 4x2 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47068
Work Truck 4x2 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.16779
Work Truck 4x2 Double Cab 8 ft. box 162.5 in. WB DRW256.596.680.2162.510.46977
Work Truck 4x2 Double Cab 8 ft. box 162.5 in. WB SRW256.581.880.9162.511.26689
Work Truck 4x2 Regular Cab 8 ft. box 141.6 in. WB DRW235.596.680.2141.610.56520
Work Truck 4x2 Regular Cab 8 ft. box 141.6 in. WB SRW235.581.880.9141.611.26231
Work Truck 4x4 Crew Cab 6.75 ft. box 158.9 in. WB SRW249.981.880.9158.911.26947
Work Truck 4x4 Crew Cab 8 ft. box 172 in. WB DRW266.096.680.0172.010.47352
Work Truck 4x4 Crew Cab 8 ft. box 172 in. WB SRW266.081.880.7172.011.17059
Work Truck 4x4 Double Cab 8 ft. box 162.5 in. WB DRW256.596.680.2162.510.47259
Work Truck 4x4 Double Cab 8 ft. box 162.5 in. WB SRW256.581.880.9162.511.26971
Work Truck 4x4 Regular Cab 8 ft. box 141.6 in. WB DRW235.596.680.2141.610.56817
Work Truck 4x4 Regular Cab 8 ft. box 141.6 in. WB SRW235.581.880.9141.611.26528

Values in inches / pounds as stored. Ranges above reflect trim variation.

Same generation (Fourth generation (GMTT1XX)): years 2020–2023. View model overview

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