2026 GMC Sierra 2500HD Denali Diesel: 12 of 15 decision facts sourced.
2026 RAM 2500 Tradesman 4x4 Crew Cab: 11 of 15 decision facts sourced.
| 2026 GMC Sierra 2500HD Denali Diesel | 2026 RAM 2500 Tradesman 4x4 Crew Cab | |
|---|---|---|
| Starting MSRP | $47,300 gmc.com | $45,995 ramtrucks.com |
| Engine | Duramax 6.6L Turbo-Diesel V8 gmc.com | High-Output 6.7L Cummins® Turbo Diesel I6 ramtrucks.com |
| Horsepower | 470 HP gmc.com | 430 HORSEPOWER ramtrucks.com |
| Torque | 975 lb.-ft. gmc.com | 1,075 LB-FT ramtrucks.com |
| Drivetrain | Not yet sourced | 4x2 / 4x4 ramtrucks.com |
| Transmission | 10-speed automatic transmission gmc.com | TorqueFlite® HD eight‑speed automatic ramtrucks.com |
| NHTSA overall | Not rated by NHTSA nhtsa.gov | 4 stars nhtsa.gov |
| Recalls (model year) | 1 nhtsa.gov | 7 nhtsa.gov |
| Owner complaints (NHTSA) | 10 nhtsa.gov | 26 nhtsa.gov |
| Powertrain warranty | Not yet sourced | 10-Year/100,000-Mile Limited Powertrain Warranty ramtrucks.com |
| Seating | 6 gmc.com | Not yet sourced |
| Cargo volume | 69.50 cu ft gmc.com | Not yet sourced |
| Max towing | 22,390 lbs. gmc.com | 20,000 LB ramtrucks.com |
| Max payload | 4,049 lbs. gmc.com | Not yet sourced |
Recall and complaint counts come from NHTSA — check your VIN at nhtsa.gov.
Not yet sourced — 2026 GMC Sierra 2500HD Denali Diesel: Drivetrain, Basic warranty, Powertrain warranty. 2026 RAM 2500 Tradesman 4x4 Crew Cab: Basic warranty, Seating, Cargo volume, Max payload. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.
Verdict: Pick the 2026 GMC Sierra 2500HD Denali Diesel if you need the highest horsepower (470 HP) and the greatest towing capacity (22,390 lbs). The RAM 2500 Tradesman 4x4 Crew Cab carries a 4-star NHTSA overall rating; the Sierra 2500HD Denali Diesel is not rated. Neither publishes basic warranty yet.
2026 GMC Sierra 2500HD Denali Diesel lists at $62,900 while 2026 RAM 2500 Tradesman 4x4 Crew Cab lists at $45,995 — 2026 RAM 2500 Tradesman 4x4 Crew Cab undercuts 2026 GMC Sierra 2500HD Denali Diesel by $16,905 (37%).
Winner: 2026 GMC Sierra 2500HD Denali Diesel
2026 GMC Sierra 2500HD Denali Diesel: 8/10
2026 RAM 2500 Tradesman 4x4 Crew Cab: 7.5/10
2026 GMC Sierra 2500HD Denali Diesel: AutoTrader · Cars.com · CarGurus · eBay Motors
2026 RAM 2500 Tradesman 4x4 Crew Cab: AutoTrader · Cars.com · CarGurus · eBay Motors
| 2026 GMC Sierra 2500HD Denali Diesel | 2026 RAM 2500 Tradesman 4x4 Crew Cab | |
|---|---|---|
| Starting MSRP | $47,300 | $45,995 |
| Engine | Duramax 6.6L Turbo-Diesel V8 | High-Output 6.7L Cummins® Turbo Diesel I6 |
| Horsepower | 470 HP | 430 HORSEPOWER |
| Torque | 975 lb.-ft. | 1,075 LB-FT |
| Transmission | 10-speed automatic transmission | TorqueFlite® HD eight‑speed automatic |
| Max towing | 22,390 lbs. | 20,000 LB |
Our pick: 2026 GMC Sierra 2500HD Denali Diesel.
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