GMC Sierra 3500 HD vs INEOS Grenadier Quartermaster
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2027 INEOS Grenadier Quartermaster
Overview
| Spec | GMC Sierra 3500 HDPro | INEOS Grenadier QuartermasterHelmsman Edition |
|---|---|---|
| Selected trim | Pro | Helmsman Edition |
| Body style | Truck (Regular Cab) | Truck (Crew Cab) |
| Drivetrain | rear wheel drive | four wheel drive |
| Fuel type | regular unleaded | premium unleaded (required) |
| Transmission | 10-speed shiftable automatic | 8-speed automatic |
| Engine type | gas | gas |
| Model year | 2026 | 2027 |
Pricing & market
| Spec | GMC Sierra 3500 HDPro | INEOS Grenadier QuartermasterHelmsman Edition |
|---|---|---|
| MSRP | $47,900 (best) | $84,395 |
| Lowest listing price | $88,775 (best) | — |
| Median listing price | $88,775 (best) | — |
| Highest listing price | $88,775 (best) | — |
| For sale now | 1 (best) | 0 |
Fuel economy & range
| Spec | GMC Sierra 3500 HDPro | INEOS Grenadier QuartermasterHelmsman Edition |
|---|---|---|
| Fuel tank | 36 gal (best) | 24 gal |
Performance
| Spec | GMC Sierra 3500 HDPro | INEOS Grenadier QuartermasterHelmsman Edition |
|---|---|---|
| Horsepower | 401 hp (best) | 282 hp |
| Torque | 464 lb-ft (best) | 332 lb-ft |
| Engine size | 6.6 L (best) | 3 L |
| Cylinders | V8 | I6 |
Size & capability
| Spec | GMC Sierra 3500 HDPro | INEOS Grenadier QuartermasterHelmsman Edition |
|---|---|---|
| Seating | 3 seats | 5 seats (best) |
| Doors | 2 | 4 (best) |
| Towing capacity | 14,500 lbs (best) | 7,716 lbs |
| Payload | 4,583 lbs (best) | — |
| Curb weight | 6,329 lbs | 5,827 lbs (best) |
| Ground clearance | 11.2 in (best) | 10 in |
| Wheelbase | 142 in (best) | 127 in |
| Length | 236.3 in (best) | 213 in |
| Width | 81.9 in (best) | 77 in |
| Height | 80.9 in (best) | 80 in |
Safety & recalls
| Spec | GMC Sierra 3500 HDPro | INEOS Grenadier QuartermasterHelmsman Edition |
|---|---|---|
| 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 3500 HD | INEOS Grenadier Quartermaster |
|---|---|---|
| 1 | Pro $47,900 MSRP(Currently comparing) | Helmsman Edition $84,395 MSRP(Currently comparing) |
| 2 | Pro $49,300 MSRP | Fieldmaster Edition $86,300 MSRP |
| 3 | Pro $50,000 MSRP | Trialmaster Edition $86,300 MSRP |
| 4 | Pro $51,400 MSRP | Fieldmaster Highlands Edition $91,495 MSRP |
| 5 | Pro $51,600 MSRP | — |
| 6 | Pro $51,800 MSRP | — |
| 7 | Pro $53,200 MSRP | — |
| 8 | Pro $50,700 MSRP | — |
| 9 | Pro $52,100 MSRP | — |
| 10 | Pro $52,800 MSRP | — |
| 11 | Pro $54,200 MSRP | — |
| 12 | Pro $54,400 MSRP | — |
| 13 | Pro $54,600 MSRP | — |
| 14 | Pro $56,000 MSRP | — |
| 15 | SLE $54,700 MSRP | — |
| 16 | SLE $56,200 MSRP | — |
| 17 | SLE $57,000 MSRP | — |
| 18 | SLE $58,400 MSRP | — |
| 19 | SLE $58,600 MSRP | — |
| 20 | SLE $58,800 MSRP | — |
| 21 | SLE $60,100 MSRP | — |
| 22 | SLT $65,900 MSRP | — |
| 23 | SLT $66,100 MSRP | — |
| 24 | SLT $67,500 MSRP | — |
| 25 | AT4 $72,800 MSRP | — |
| 26 | AT4 $73,000 MSRP | — |
| 27 | Denali $76,100 MSRP | — |
| 28 | Denali $76,300 MSRP | — |
| 29 | Denali $79,100 MSRP | — |
| 30 | Denali Ultimate $97,200 MSRP | — |
| 31 | Denali Ultimate $97,400 MSRP | — |
| 32 | Denali Ultimate $101,300 MSRP | — |
Live inventory
GMC Sierra 3500 HD vs INEOS Grenadier Quartermaster FAQ
- Which is better: 2026 GMC Sierra 3500 HD or 2027 INEOS Grenadier Quartermaster?
- It depends on priorities. OpenDealer compares 2026 GMC Sierra 3500 HD vs 2027 INEOS Grenadier Quartermaster 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 3500 HD or 2027 INEOS Grenadier Quartermaster?
- Based on starting MSRP, the 2026 GMC Sierra 3500 HD starts lower at $47,900. Live GMC Sierra 3500 HD listings start at $88,775.
- Which has better startingMsrp: 2026 GMC Sierra 3500 HD or 2027 INEOS Grenadier Quartermaster?
- The 2026 GMC Sierra 3500 HD leads on startingMsrp in this comparison (47,900).
- Which has better combinedMpg: 2026 GMC Sierra 3500 HD or 2027 INEOS Grenadier Quartermaster?
- The 2027 INEOS Grenadier Quartermaster leads on combinedMpg in this comparison (14).
- Which has better horsepower: 2026 GMC Sierra 3500 HD or 2027 INEOS Grenadier Quartermaster?
- The 2026 GMC Sierra 3500 HD leads on horsepower in this comparison (470).
- Which has better seats: 2026 GMC Sierra 3500 HD or 2027 INEOS Grenadier Quartermaster?
- The 2026 GMC Sierra 3500 HD leads on seats in this comparison (6).
- Which has better maxTowingLbs: 2026 GMC Sierra 3500 HD or 2027 INEOS Grenadier Quartermaster?
- The 2026 GMC Sierra 3500 HD leads on maxTowingLbs in this comparison (20,000).