2025 Chevrolet Silverado 3500HD vs 2026 GMC Sierra 3500HD
Comparison Overview
Deciding between the 2025 Chevrolet Silverado 3500HD and the 2026 GMC Sierra 3500HD when you need heavy-duty capability can be tough, as these twins share identical powertrain figures: both boast 401 horsepower and 464 lb-ft of torque, paired with a 10-speed automatic transmission. The key differences are minute in the spec sheet. The Silverado 3500HD starts at a slightly lower MSRP of $46,500 compared to the Sierra’s $47,900 entry point, saving $1,400 right off the bat. Dimensionally, the Sierra 3500HD is marginally larger, measuring 236.3 inches long versus the Silverado’s 235.6 inches, and it is 0.1 inch wider. Both run on regular unleaded fuel, but this minor gap in size and price is usually where the decision hinges for buyers needing RWD heavy haulers.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Chevrolet Silverado 3500HD
The 2025 Chevrolet Silverado 3500HD wins for commuters due to its slightly lower starting MSRP of $46,500.
2026 GMC Sierra 3500HD
Since both lack specific interior family amenities, the marginally larger 2026 GMC Sierra 3500HD at 236.3 inches long might offer fractional space benefits.
2025 Chevrolet Silverado 3500HD
Enthusiasts seeking identical 401 hp performance will favor the Silverado for its $1,400 lower starting price.
2025 Chevrolet Silverado 3500HD
The 2025 Chevrolet Silverado 3500HD offers the exact same core performance metrics for a lower initial investment.
Choose the Chevrolet Silverado 3500HD if...
- You want to save $1,400 upfront, as the Silverado 3500HD MSRP starts at $46,500 versus $47,900 for the GMC.
- You prefer a slightly more compact footprint, with the Silverado measuring 235.6 inches in length.
- You are satisfied with identical 401 hp and 464 lb-ft torque figures provided by the standard powertrain.
Choose the GMC Sierra 3500HD if...
- You value the marginally larger dimensions, as the Sierra is 0.1 inch wider and 0.7 inches longer than the Chevy.
- You prefer the design aesthetic associated with the GMC brand, given the identical mechanical underpinnings.
- You don't mind spending the extra $1,400 for the 2026 model year Sierra variant.
Key Dimensions
| Dimension | Chevrolet Silverado 3500HD | GMC Sierra 3500HD |
|---|---|---|
| Length | 235.6" | 236.3" |
| Width | 81.8" | 81.9" |
| Height | 80.9" | 80.9" |
| Wheelbase | 142.0" | 142.0" |
Features Comparison
Safety
| Feature | Chevrolet | GMC |
|---|---|---|
| Lane Departure Warning | ✓ | ✓ |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Front Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Assist | ✓ | — |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | ✓ |
| Front Center 3-Point Seatbelt | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| LED Headlights | — | ✓ |
| Integrated Turn Signal Mirrors | — | ✓ |
Engine
| Feature | Chevrolet | GMC |
|---|---|---|
| Base Engine Displacement | 6.6 L | 6.6 L |
| Number of Cylinders | V8 | V8 |
| Base Engine Type | gas | gas |
| Horsepower | 401 hp @ 5200 rpm | 401 hp @ 5200 rpm |
| Torque | 464 lb-ft @ 4000 rpm | 464 lb-ft @ 4000 rpm |
| Number of Valves | 16 | 16 |
| Camshaft Type | Overhead valves (OHV) | Overhead valves (OHV) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | Chevrolet | GMC |
|---|---|---|
| Transmission Type | 10-speed shiftable automatic | 10-speed shiftable automatic |
| Drivetrain Type | rear wheel drive | rear wheel drive |
| Rear Differential Type | Locking | Locking |
Fuel
| Feature | Chevrolet | GMC |
|---|---|---|
| Fuel Type | regular unleaded | regular unleaded |
| EPA Driving Range (City/Highway) | 0/0 mi. | 0/0 mi. |
| Fuel Tank Capacity | 36.0 gal. | 36.0 gal. |
Comfort & Convenience
| Feature | Chevrolet | GMC |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Tilt Steering Wheel | ✓ | ✓ |
| Power Steering | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Single Zone Climate Control | ✓ | ✓ |
| Steering Wheel Controls | — | ✓ |
| Turn Signal Indicators in Mirrors | — | ✓ |
In Car Entertainment
| Feature | Chevrolet | GMC |
|---|---|---|
| Infotainment Display | 7.0 in | 7.0 in |
| AM/FM Stereo | ✓ | ✓ |
| Speaker System | 2 | 2 |
| Android Auto (Wireless) | ✓ | — |
| Apple CarPlay (Wireless) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Speed Sensitive Volume Control | ✓ | ✓ |
| Android Auto (Wired) | — | ✓ |
| Apple CarPlay (Wired) | — | ✓ |
Power Feature
| Feature | Chevrolet | GMC |
|---|---|---|
| One-Touch Power Windows | 2 | 2 |
| Remote Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Power Door Locks | — | ✓ |
Frontseats
| Feature | Chevrolet | GMC |
|---|---|---|
| Front Head Room | 43.1 in. | 43.1 in. |
| Front Leg Room | 44.5 in. | 44.5 in. |
| Front Shoulder Room | 66.0 in. | 66.1 in. |
| Front Hip Room | 60.9 in. | 60.9 in. |
| Seat Material: Vinyl | ✓ | ✓ |
| Front Seat Type: 40-20-40 Split Bench | ✓ | ✓ |
| Driver Seat Manual Adjustments | 4-way | 4-way |
| Passenger Seat Manual Adjustments | 4-way | 4-way |
Tires and Wheels
| Feature | Chevrolet | GMC |
|---|---|---|
| Wheel Finish | Painted Steel | Painted Steel |
| Wheel Diameter | 18 in | 18 in |
| Tire Type | All Terrain | All Terrain |
| Tire Size | LT275/70R18 | LT275/70R18 |
| Spare Tire Type | Full Size Non-Matching | Full Size Matching |
| Spare Tire Location | Underbody Mounted | Underbody Mounted |
Suspension
| Feature | Chevrolet | GMC |
|---|---|---|
| Front Suspension Type | Independent | Independent |
| Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Chevrolet | GMC |
|---|---|---|
| Basic Warranty | 3 yr./ 36000 mi. | 3 yr./ 36000 mi. |
| Drivetrain Warranty | 5 yr./ 60000 mi. | 5 yr./ 100000 mi. |
| Corrosion/Rust Warranty | 6 yr./ 100000 mi. | 6 yr./ 100000 mi. |
| Roadside Assistance | 5 yr./ 60000 mi. | 5 yr./ 60000 mi. |
| Complimentary Scheduled Maintenance | 1 yr./ unlimited mi. | 1 yr./ unlimited mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Chevrolet Silverado 3500HD and 2026 GMC Sierra 3500HD.
Are there any performance differences between the 2025 Silverado 3500HD and the 2026 Sierra 3500HD?
No, based on these specs, the performance is identical; both trucks deliver 401 horsepower and 464 lb-ft of torque. Both also utilize a 10-speed shiftable automatic transmission to manage that power.
Which truck is physically larger for trailering or maneuvering?
The 2026 GMC Sierra 3500HD is technically larger, measuring 236.3 inches long and 81.9 inches wide, compared to the Silverado's 235.6 inches length and 81.8 inches width. Both share an identical height of 80.9 inches.
Does one of these heavy-duty trucks require premium fuel?
Fortunately for your wallet, neither truck mandates premium fuel; both the 2025 Silverado 3500HD and the 2026 Sierra 3500HD are rated to run on regular unleaded fuel.
How significant is the price difference between the two RWD models?
The MSRP difference is exactly $1,400; the Chevrolet Silverado 3500HD starts at $46,500, while the GMC Sierra 3500HD starts at $47,900.
Is the 2026 model year of the Sierra worth the extra cost over the 2025 Chevy?
Since the horsepower, torque, and transmission are the same, the extra cost for the Sierra only buys marginal size increases (0.7 inches in length) and brand preference, as the base mechanics are twin systems.
Are these trucks significantly different in terms of standard drivetrain configuration?
No, both models listed come standard with rear-wheel drive (RWD) and share the same 10-speed automatic transmission, suggesting they are configured identically for basic towing and hauling duty.
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