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VEHICLE RESEARCH

2026 GMC Sierra 2500hd: Engines, Hybrid/EV & Drivetrain

Source-governed model-year information. Equipment can vary by trim and exact configuration.

Powertrain

The 2026 GMC Sierra 2500hd powertrain record includes versions such as AT4 ICE 4WD 10-speed automatic, AT4X ICE 4WD 10-speed automatic 401 hp 464 lb-ft, Denali ICE 4WD 10-speed automatic 401 hp 464 lb-ft, Denali Ultimate ICE 4WD 10-speed automatic 470 hp 975 lb-ft, Pro ICE RWD 10-speed automatic 401 hp 464 lb-ft, and SLE ICE 4WD 10-speed automatic 401 hp 464 lb-ft. Use the exact version details whenever output, drivetrain, transmission, fuel type, or electrification changes within the lineup.

The documented powertrain combinations to compare are AT4 ICE 4WD 10-speed automatic, AT4X ICE 4WD 10-speed automatic 401 hp 464 lb-ft, Denali ICE 4WD 10-speed automatic 401 hp 464 lb-ft, Denali Ultimate ICE 4WD 10-speed automatic 470 hp 975 lb-ft, Pro ICE RWD 10-speed automatic 401 hp 464 lb-ft, and SLE ICE 4WD 10-speed automatic 401 hp 464 lb-ft. Engine or motor type, transmission, drivetrain, and electrification remain tied to the applicable 2026 GMC Sierra 2500hd version.

Documented details

  • AT4 ICE 4WD 10-speed automatic
  • AT4X ICE 4WD 10-speed automatic 401 hp 464 lb-ft
  • Denali ICE 4WD 10-speed automatic 401 hp 464 lb-ft
  • Denali Ultimate ICE 4WD 10-speed automatic 470 hp 975 lb-ft
  • Pro ICE RWD 10-speed automatic 401 hp 464 lb-ft
  • SLE ICE 4WD 10-speed automatic 401 hp 464 lb-ft
  • SLT ICE 4WD 10-speed automatic 401 hp 464 lb-ft

Questions about Engines, Hybrid/EV & Drivetrain

Which powertrain combinations are recorded for the 2026 GMC Sierra 2500hd?

Recorded 2026 GMC Sierra 2500hd versions include AT4: ICE, 10-speed automatic, 4WD, AT4X: ICE, 10-speed automatic, 4WD, Denali: ICE, 10-speed automatic, 4WD, Denali Ultimate: ICE, 10-speed automatic, 4WD, and Pro: ICE, 10-speed automatic, RWD. Engine type, transmission and drivetrain apply to their listed versions, not necessarily every trim.

Vehicle specifications, pricing and equipment may vary by trim, configuration, market and time. Verify the exact vehicle before purchase.