⌘K
Find a vehicle
RecallsCompareNewsPricing
Your vehicle
VIN decoderWindow stickerProblems by systemTitle brands
Federal filings
Service bulletinsOwner complaintsInvestigationsEarly Warning reportsWarranty extensionsDriver-assist crashesTrouble codes
Browse the record
GuidesRankingsAll makesQuarterly reportsWhat is in the data
Paperwork
Repair Claim KitCar CheckFor attorneysFor expert witnessesFor repair shopsRecall disclosure formRecall fix sheets
Tools and data
Recall WatchFleet VIN checkCost calculatorsCar crosswordAPI & data
Sign inGarage
Your vehicleHome›Chevrolet›Silverado 2500HD›2022› High Country Diesel
2022 Chevrolet Silverado 2500HD

High Country Diesel 4WD

Gas 4WD MSRP —Compare this trim against anything →

What the High Country Diesel adds over the Work Truck (WT) Gas

SpecWork Truck (WT) GasHigh Country Diesel
Curb weight (maximum)6105 lbs7886 lbs
Curb weight (minimum)6105 lbs7721 lbs
Aspirationnaturally aspiratedtwin turbo
Horsepower401 hp445 hp
Torque464 lb-ft910 lb-ft
Engine type (full description)6.6L V-8 gasoline or E85 FlexFuelDuramax 6.6L V-8 Turbo-Diesel
Valve configurationOverhead-valve, two valves per cylinder, variable valve timingOverhead-valve, four valves per cylinder
Ground clearance10.2 in10.1 in
Gross vehicle weight rating10000 lbs11150 lbs
Front headroom43.1 in43.0 in
Overall height79.9 in79.8 in
Overall length235.5 in249.9 in
Overall width81.8 in81.8 in
Payload capacity3979 lbs3563 lbs
Front shoulder room66.1 in66.0 in
Steering typeHydraulic power-assisted recirculating ballHydraulic power-assisted recirculating ball; includes Digital Variable Steering Assist
Tire sizeLT245/75R17 ALSLT275/65R20 AT
Final drive ratio3.73.4
Transmission speeds610
Wheel diameter17 in20 in
Wheel materialsteelaluminum
Wheelbase141.6 in158.9 in

Specifications

Source: manufacturer press kit

Brakes

Front brake diameter355 mm
Front brake typeventilated disc
Rear brake diameter360 mm
Rear brake typesolid disc

Dimensions Exterior

Ground clearance10.1 in
Overall height79.8 in
Overall length249.9 in
Overall width81.8 in
Wheelbase158.9 in

Engine Basics

Aspirationtwin turbo
Cylinder count8
Engine displacement6600 cc
Fuel injection systemgdi mpi
Engine type (full description)Duramax 6.6L V-8 Turbo-Diesel
Valve configurationOverhead-valve, four valves per cylinder

Engine Output

Horsepower445 hp
Torque910 lb-ft

Fuel System

Fuel tank capacity36 gal

Headroom

Front headroom43.0 in
Third-row headroom40.1 in

Legroom

Front legroom44.5 in
Third-row legroom43.4 in

Shoulder Room

Front shoulder room66.0 in
Third-row shoulder room65.3 in

Steering

Steering typeHydraulic power-assisted recirculating ball; includes Digital Variable Steering Assist

Suspension

Front suspension typeShort long arms independent front suspension with torsion bars
Rear suspension typeSemi-elliptic three-stage multi-leaf spring

Tires

Tire sizeLT275/65R20 AT

Transmission

Final drive ratio3.4
Transmission speeds10
Transmission typeautomatic

Weights

Curb weight (maximum)7886 lbs
Curb weight (minimum)7721 lbs
Gross vehicle weight rating11150 lbs
Payload capacity3563 lbs

Wheels

Wheel diameter20 in
Wheel materialaluminum

Standard & optional equipment

Source: manufacturer press kit

Safety3 std · 0 opt

  • Hydraulic power-assisted Hydroboost brake booster, four-wheel disc brakes
  • Stabilitrak electronic stability assist
  • four-wheel disc brakes with ABS and Stabilitrak electronic stability assist

Exterior3 std · 0 opt

  • 17-in. steel or aluminum wheels
  • 18-in. steel or aluminum wheels
  • 20-in. aluminum wheels

Powertrain4 std · 0 opt

  • 6.6L V-8 gasoline or E85 FlexFuel engine (401 hp / 464 lb.-ft.)
  • Allison 10L1000 10-speed automatic transmission (6.6L diesel)
  • Duramax 6.6L V-8 Turbo-Diesel engine (445 hp / 910 lb.-ft.)
  • Hydra-Matic 6L90 six-speed automatic transmission (6.6L gas)

Chassis3 std · 0 opt

  • Hydraulic power-assisted recirculating ball steering; includes Digital Variable Steering Assist on LTZ and High Country
  • Semi-elliptic three-stage multi-leaf spring rear suspension
  • Short long arms independent front suspension with torsion bars

Ranked by what shoppers ask about first; standard equipment before options.

Transcribed from the manufacturer's official press kit for the 2022 Silverado 2500HD. Confirm with the window sticker for a specific unit.

Factory warranty running out?

The 2022 Chevrolet Silverado 2500HD is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.

What to check before you buy →

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

Common questions about the High Country Diesel

Source: EPA, NHTSA and manufacturer press kits

What does the 2022 Chevrolet Silverado 2500HD High Country Diesel add over the Work Truck (WT) Gas?

Against the Work Truck (WT) Gas, 22 published specifications differ. Both lists are on this page, taken from the manufacturer's own press material.