GMC Sierra 2500 HD vs GMC Sierra 3500
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2006 GMC Sierra 3500
Overview
| Spec | GMC Sierra 2500 HDPro | GMC Sierra 3500Work Truck |
|---|---|---|
| Selected trim | Pro | Work Truck |
| Body style | Truck (Regular Cab) | Truck (Regular Cab) |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | regular unleaded | regular unleaded |
| Transmission | 10-speed shiftable automatic | 4-speed automatic |
| Engine type | gas | gas |
| Model year | 2026 | 2006 |
Pricing & market
| Spec | GMC Sierra 2500 HDPro | GMC Sierra 3500Work Truck |
|---|---|---|
| MSRP | $47,000 | $23,185 (best) |
| Lowest listing price | $63,314 (best) | — |
| Median listing price | $79,812 (best) | — |
| Highest listing price | $102,656 (best) | — |
| For sale now | 6 (best) | 0 |
Fuel economy & range
| Spec | GMC Sierra 2500 HDPro | GMC Sierra 3500Work Truck |
|---|---|---|
| Fuel tank | 36 gal (best) | 34 gal |
Performance
| Spec | GMC Sierra 2500 HDPro | GMC Sierra 3500Work Truck |
|---|---|---|
| Horsepower | 401 hp (best) | 300 hp |
| Torque | 464 lb-ft (best) | 360 lb-ft |
| Engine size | 6.6 L (best) | 6 L |
| Cylinders | V8 | V8 |
Size & capability
| Spec | GMC Sierra 2500 HDPro | GMC Sierra 3500Work Truck |
|---|---|---|
| Seating | 3 seats | 3 seats |
| Doors | 2 | 2 |
| Towing capacity | 14,500 lbs (best) | 12,000 lbs |
| Payload | 3,689 lbs | 4,658 lbs (best) |
| Curb weight | 6,267 lbs | 4,942 lbs (best) |
| Ground clearance | 10.2 in | 10.6 in (best) |
| Wheelbase | 142 in (best) | 133 in |
| Length | 236.3 in (best) | 224.5 in |
| Width | 81.8 in (best) | 79.7 in |
| Height | 79.9 in (best) | 76.7 in |
Safety & recalls
| Spec | GMC Sierra 2500 HDPro | GMC Sierra 3500Work Truck |
|---|---|---|
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | GMC Sierra 2500 HD | GMC Sierra 3500 |
|---|---|---|
| 1 | Pro $47,000 MSRP(Currently comparing) | Work Truck $23,185 MSRP(Currently comparing) |
| 2 | Pro $48,900 MSRP | Work Truck $26,475 MSRP |
| 3 | Pro $49,100 MSRP | Work Truck $27,135 MSRP |
| 4 | Pro $50,700 MSRP | Work Truck $28,715 MSRP |
| 5 | Pro $50,900 MSRP | Work Truck $29,130 MSRP |
| 6 | Pro $49,800 MSRP | Work Truck $26,465 MSRP |
| 7 | Pro $51,700 MSRP | Work Truck $26,710 MSRP |
| 8 | Pro $51,900 MSRP | Work Truck $29,255 MSRP |
| 9 | Pro $53,500 MSRP | Work Truck $30,155 MSRP |
| 10 | Pro $53,700 MSRP | Work Truck $31,495 MSRP |
| 11 | SLE $54,000 MSRP | Work Truck $32,145 MSRP |
| 12 | SLE $56,100 MSRP | SL1 $24,420 MSRP |
| 13 | SLE $56,300 MSRP | SL1 $27,905 MSRP |
| 14 | SLE $57,900 MSRP | SL1 $28,625 MSRP |
| 15 | SLE $58,100 MSRP | SL1 $30,130 MSRP |
| 16 | SLT $65,200 MSRP | SL1 $30,620 MSRP |
| 17 | SLT $65,500 MSRP | SL1 $27,855 MSRP |
| 18 | AT4 $72,200 MSRP | SL1 $28,050 MSRP |
| 19 | AT4 $72,400 MSRP | SL1 $30,690 MSRP |
| 20 | Denali $75,200 MSRP | SL1 $31,640 MSRP |
| 21 | Denali $75,400 MSRP | SL1 $32,925 MSRP |
| 22 | AT4X $85,200 MSRP | SL1 $33,640 MSRP |
| 23 | Denali Ultimate $94,200 MSRP | SLE1 $25,885 MSRP |
| 24 | Denali Ultimate $94,500 MSRP | SLE1 $29,525 MSRP |
| 25 | — | SLE1 $30,050 MSRP |
| 26 | — | SLE1 $31,640 MSRP |
| 27 | — | SLE1 $31,980 MSRP |
| 28 | — | SLE1 $29,135 MSRP |
| 29 | — | SLE1 $29,385 MSRP |
| 30 | — | SLE1 $32,210 MSRP |
| 31 | — | SLE1 $33,100 MSRP |
| 32 | — | SLE1 $34,325 MSRP |
| 33 | — | SLE1 $34,995 MSRP |
| 34 | — | SLE2 $31,255 MSRP |
| 35 | — | SLE2 $31,560 MSRP |
| 36 | — | SLE2 $33,530 MSRP |
| 37 | — | SLE2 $33,650 MSRP |
| 38 | — | SLE2 $33,945 MSRP |
| 39 | — | SLE2 $34,800 MSRP |
| 40 | — | SLE2 $36,215 MSRP |
| 41 | — | SLE2 $36,860 MSRP |
| 42 | — | SLT $32,735 MSRP |
| 43 | — | SLT $33,075 MSRP |
| 44 | — | SLT $35,010 MSRP |
| 45 | — | SLT $35,170 MSRP |
| 46 | — | SLT $35,425 MSRP |
| 47 | — | SLT $36,280 MSRP |
| 48 | — | SLT $37,695 MSRP |
| 49 | — | SLT $38,340 MSRP |
Live inventory
GMC Sierra 2500 HD6 for sale
See all
New2026 GMC Sierra 2500 HD
AT4X
Sterling Metallic•Obsidian Rush, Full Grain Leather Seat TrimN/A$102,656MSRP $108,480Jay Hatfield GMC of Pittsburg
Frontenac, KS
New2026 GMC Sierra 2500 HD
AT4
Onyx Black•Jet Black With Kalahari Accents, Perforated Front Leather Seat TrimN/A$81,299MSRP $91,450Jay Hatfield GMC of Pittsburg
Frontenac, KS
New2026 GMC Sierra 2500 HD
SLT
Volcanic Red Tintcoat•Jet Black, Perforated Leather-Appointed Front Outboard Seating PositionsN/A$78,325MSRP $86,860Jay Hatfield GMC of Pittsburg
Frontenac, KS
New2026 GMC Sierra 2500 HD
SLE
Summit White•Jet Black, Cloth Seat TrimN/A$63,314MSRP $67,575Jay Hatfield GMC of Pittsburg
Frontenac, KS
New2026 GMC Sierra 2500 HD
Denali
Onyx Black•Jet Black, Forge Perforated Leather Seat TrimN/A$87,787MSRP $96,405Jay Hatfield GMC of Pittsburg
Frontenac, KS
New2026 GMC Sierra 2500 HD
AT4
Summit White•Jet Black With Kalahari Accents, Perforated Front Leather Seat TrimN/A$74,263MSRP $79,864Jay Hatfield GMC Chanute
Chanute, KS
GMC Sierra 2500 HD vs GMC Sierra 3500 FAQ
- Which is better: 2026 GMC Sierra 2500 HD or 2006 GMC Sierra 3500?
- It depends on priorities. OpenDealer compares 2026 GMC Sierra 2500 HD vs 2006 GMC Sierra 3500 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 GMC Sierra 2500 HD or 2006 GMC Sierra 3500?
- Based on starting MSRP, the 2006 GMC Sierra 3500 starts lower at $23,185. Live GMC Sierra 2500 HD listings start at $63,314.
- Which has better startingMsrp: 2026 GMC Sierra 2500 HD or 2006 GMC Sierra 3500?
- The 2006 GMC Sierra 3500 leads on startingMsrp in this comparison (23,185).
- Which has better horsepower: 2026 GMC Sierra 2500 HD or 2006 GMC Sierra 3500?
- The 2026 GMC Sierra 2500 HD leads on horsepower in this comparison (470).
- Which has better maxTowingLbs: 2026 GMC Sierra 2500 HD or 2006 GMC Sierra 3500?
- The 2026 GMC Sierra 2500 HD leads on maxTowingLbs in this comparison (20,000).